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Add combined MCU and radio ATmega128rfa1

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This commit is contained in:
dak664 2011-02-07 13:46:34 -05:00
parent ee65d0d887
commit f1f32c8e6a
9 changed files with 609 additions and 114 deletions
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38
cpu/avr/dev/clock-avr.h
View file

@ -36,7 +36,43 @@
*/ \ */ \
TIMSK = _BV (OCIE0); TIMSK = _BV (OCIE0);
#elif defined (__AVR_ATmega1284P__) || (__AVR_AT90USB1287__) || (__AVR_ATmega1281__) #elif defined (__AVR_ATmega128RFA1__) && 0
#define AVR_OUTPUT_COMPARE_INT TIMER0_COMPA_vect
#define OCRSetup() \
/* Select internal clock */ \
ASSR = 0x00; \
\
/* Set counter to zero */ \
TCNT0 = 0; \
\
/* \
* Set comparison register: \
* Crystal freq. is 8000000,\
* pre-scale factor is 1024, we want 125 ticks / sec: \
* 8000000 = 1024 * 126.01 * 62, less 1 for CTC mode \
*/ \
OCR0A = 61; \
\
/* \
* Set timer control register: \
* - prescale: 1024 (CS00 - CS02) \
* - counter reset via comparison register (WGM01) \
*/ \
TCCR0A = _BV(WGM01); \
TCCR0B = _BV(CS00) | _BV(CS02); \
\
/* Clear interrupt flag register */ \
TIFR0 = TIFR0; \
\
/* \
* Raise interrupt when value in OCR0 is reached. Note that the \
* counter value in TCNT0 is cleared automatically. \
*/ \
TIMSK0 = _BV (OCIE0A);
#elif defined (__AVR_ATmega1284P__) || (__AVR_AT90USB1287__) || (__AVR_ATmega1281__) || defined (__AVR_ATmega128RFA1__)
/* /*
The Raven has a 32768Hz watch crystal that can be used to clock the timer The Raven has a 32768Hz watch crystal that can be used to clock the timer
while the 1284p is sleeping. The Jackdaw has pads for a crystal. The crystal while the 1284p is sleeping. The Jackdaw has pads for a crystal. The crystal

27
cpu/avr/dev/clock.c
View file

@ -46,19 +46,42 @@ void clock_adjust_seconds(uint8_t howmany) {
#endif #endif
} }
/*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*/
/* These routines increment the second counters.
* Calling these avoids the interrupt overhead of pushing many registers on the stack.
*/
static void increment_seconds(void) __attribute__ ((noinline));
static void increment_seconds(void)
{
seconds++;
}
#if RADIOSTATS
extern volatile uint8_t rf230_calibrate;
static void increment_radioontime(void) __attribute__ ((noinline));
static void increment_radioontime(void)
{
static uint8_t calibrate_interval;
radioontime++;
if (++calibrate_interval==0) {
rf230_calibrate=1;
}
}
#endif
/*---------------------------------------------------------------------------*/
//SIGNAL(SIG_OUTPUT_COMPARE0) //SIGNAL(SIG_OUTPUT_COMPARE0)
ISR(AVR_OUTPUT_COMPARE_INT) ISR(AVR_OUTPUT_COMPARE_INT)
{ {
count++; count++;
if(++scount == CLOCK_SECOND) { if(++scount == CLOCK_SECOND) {
scount = 0; scount = 0;
seconds++; increment_seconds();
// seconds++;
} }
#if RADIOSTATS #if RADIOSTATS
if (RF230_receive_on) { if (RF230_receive_on) {
if (++rcount == CLOCK_SECOND) { if (++rcount == CLOCK_SECOND) {
rcount=0; rcount=0;
radioontime++; increment_radioontime();
// radioontime++;
} }
} }
#endif #endif

2
cpu/avr/dev/rs232.c
View file

@ -52,7 +52,7 @@
#define ADD_CARRAGE_RETURNS_TO_SERIAL_OUTPUT 1 #define ADD_CARRAGE_RETURNS_TO_SERIAL_OUTPUT 1
#endif #endif
#if defined (__AVR_ATmega128__) || defined(__AVR_ATmega1284P__) || defined(__AVR_ATmega1281__) #if defined (__AVR_ATmega128__) || defined(__AVR_ATmega1284P__) || defined(__AVR_ATmega1281__) || defined(__AVR_ATmega128RFA1__)
typedef struct { typedef struct {
volatile uint8_t * UDR; volatile uint8_t * UDR;
volatile uint8_t * UBRRH; volatile uint8_t * UBRRH;

2
cpu/avr/dev/rs232.h
View file

@ -48,6 +48,8 @@
#include "dev/rs232_atmega1284.h" #include "dev/rs232_atmega1284.h"
#elif defined (__AVR_AT90USB1287__) #elif defined (__AVR_AT90USB1287__)
#include "dev/rs232_at90usb1287.h" #include "dev/rs232_at90usb1287.h"
#elif defined (__AVR_ATmega128RFA1__)
#include "dev/rs232_atmega128rfa1.h"
#else #else
#error "Please implement a rs232 header for your MCU (or set the MCU type \ #error "Please implement a rs232 header for your MCU (or set the MCU type \
in contiki-conf.h)." in contiki-conf.h)."

61
cpu/avr/radio/rf230bb/hal.h
View file

@ -73,10 +73,12 @@
// RAVENUSB_C : used for USB key or Raven card // RAVENUSB_C : used for USB key or Raven card
// RCB_B : RZ200 kit from Atmel based on 1281V // RCB_B : RZ200 kit from Atmel based on 1281V
// ZIGBIT : Zigbit module from Meshnetics // ZIGBIT : Zigbit module from Meshnetics
// ATMEGA128RFA1 : Bare chip with internal radio
#define RAVEN_D 4 #define RAVEN_D 4
#define RAVENUSB_C 1 #define RAVENUSB_C 1
#define RCB_B 2 #define RCB_B 2
#define ZIGBIT 3 #define ZIGBIT 3
#define ATMEGA128RFA1 4
@ -166,6 +168,32 @@
# define HAS_CW_MODE # define HAS_CW_MODE
# define HAS_SPARE_TIMER # define HAS_SPARE_TIMER
#elif HARWARE_REVISION == ATMEGA128RFA1
/* ATmega1281 with internal AT86RF231 radio */
#if 0
# define SSPORT B
# define SSPIN (0x04)
# define SPIPORT B
# define MOSIPIN (0x05)
# define MISOPIN (0x06)
# define SCKPIN (0x07)
# define RSTPORT B
# define RSTPIN (0x01)
# define IRQPORT D
# define IRQPIN (0x06)
# define SLPTRPORT B
# define SLPTRPIN (0x03)
# define TXCWPORT B
# define TXCWPIN (0x00)
#endif
# define SLPTRPORT TRXPR
# define SLPTRPIN 1
# define USART 1
# define USARTVECT USART1_RX_vect
# define TICKTIMER 3
# define HAS_CW_MODE
# define HAS_SPARE_TIMER
#elif CONTIKI_TARGET_MULLE #elif CONTIKI_TARGET_MULLE
/* mulle 5.2 (TODO: move to platform specific) */ /* mulle 5.2 (TODO: move to platform specific) */
@ -289,6 +317,15 @@
* that the source code can directly use. * that the source code can directly use.
* \{ * \{
*/ */
#if defined(__AVR_ATmega128RFA1__)
#define hal_set_rst_low( ) ( TRXPR &= ~( 1 << TRXRST ) ) /**< This macro pulls the RST pin low. */
#define hal_set_rst_high( ) ( TRXPR |= ( 1 << TRXRST ) ) /**< This macro pulls the RST pin high. */
#define hal_set_slptr_high( ) ( TRXPR |= ( 1 << SLPTR ) ) /**< This macro pulls the SLP_TR pin high. */
#define hal_set_slptr_low( ) ( TRXPR &= ~( 1 << SLPTR ) ) /**< This macro pulls the SLP_TR pin low. */
#define hal_get_slptr( ) ( ( TRXPR & ( 1 << SLPTR ) ) >> SLPTR ) /**< Read current state of the SLP_TR pin (High/Low). */
#else
#define SLP_TR SLPTRPIN /**< Pin number that corresponds to the SLP_TR pin. */ #define SLP_TR SLPTRPIN /**< Pin number that corresponds to the SLP_TR pin. */
#define DDR_SLP_TR DDR( SLPTRPORT ) /**< Data Direction Register that corresponds to the port where SLP_TR is connected. */ #define DDR_SLP_TR DDR( SLPTRPORT ) /**< Data Direction Register that corresponds to the port where SLP_TR is connected. */
#define PORT_SLP_TR PORT( SLPTRPORT ) /**< Port (Write Access) where SLP_TR is connected. */ #define PORT_SLP_TR PORT( SLPTRPORT ) /**< Port (Write Access) where SLP_TR is connected. */
@ -321,6 +358,8 @@
#define HAL_DD_SCK SCKPIN /**< Data Direction bit for SCK. */ #define HAL_DD_SCK SCKPIN /**< Data Direction bit for SCK. */
#define HAL_DD_MOSI MOSIPIN /**< Data Direction bit for MOSI. */ #define HAL_DD_MOSI MOSIPIN /**< Data Direction bit for MOSI. */
#define HAL_DD_MISO MISOPIN /**< Data Direction bit for MISO. */ #define HAL_DD_MISO MISOPIN /**< Data Direction bit for MISO. */
#endif /* defined(__AVR_ATmega128RFA1__) */
/** \} */ /** \} */
@ -459,17 +498,39 @@ void hal_clear_rx_start_event_handler( void );
uint8_t hal_get_pll_lock_flag( void ); uint8_t hal_get_pll_lock_flag( void );
void hal_clear_pll_lock_flag( void ); void hal_clear_pll_lock_flag( void );
/* Hack for atmega128rfa1 with integrated radio. Access registers directly, not through SPI */
#if defined(__AVR_ATmega128RFA1__)
//#define hal_register_read(address) _SFR_MEM8((uint16_t)address)
#define hal_register_read(address) address
uint8_t hal_subregister_read( uint16_t address, uint8_t mask, uint8_t position );
void hal_subregister_write( uint16_t address, uint8_t mask, uint8_t position,
uint8_t value );
//#define hal_register_write(address, value) _SFR_MEM8((uint16_t)address)=value
#define hal_register_write(address, value) address=value
//#define hal_subregister_read( address, mask, position ) (_SFR_MEM8((uint16_t)address)&mask)>>position
//#define hal_subregister_read1( address, mask, position ) (address&mask)>>position
//#define hal_subregister_write( address, mask, position, value ) address=(address<<position)&mask
#else
uint8_t hal_register_read( uint8_t address ); uint8_t hal_register_read( uint8_t address );
void hal_register_write( uint8_t address, uint8_t value ); void hal_register_write( uint8_t address, uint8_t value );
uint8_t hal_subregister_read( uint8_t address, uint8_t mask, uint8_t position ); uint8_t hal_subregister_read( uint8_t address, uint8_t mask, uint8_t position );
void hal_subregister_write( uint8_t address, uint8_t mask, uint8_t position, void hal_subregister_write( uint8_t address, uint8_t mask, uint8_t position,
uint8_t value ); uint8_t value );
#endif
//void hal_frame_read(hal_rx_frame_t *rx_frame, rx_callback_t rx_callback); //void hal_frame_read(hal_rx_frame_t *rx_frame, rx_callback_t rx_callback);
/* For speed RF230BB does not use a callback */ /* For speed RF230BB does not use a callback */
void hal_frame_read(hal_rx_frame_t *rx_frame); void hal_frame_read(hal_rx_frame_t *rx_frame);
void hal_frame_write( uint8_t *write_buffer, uint8_t length ); void hal_frame_write( uint8_t *write_buffer, uint8_t length );
void hal_sram_read( uint8_t address, uint8_t length, uint8_t *data ); void hal_sram_read( uint8_t address, uint8_t length, uint8_t *data );
void hal_sram_write( uint8_t address, uint8_t length, uint8_t *data ); void hal_sram_write( uint8_t address, uint8_t length, uint8_t *data );
/* Number of receive buffers in RAM. */
#ifndef RF230_CONF_RX_BUFFERS
#define RF230_CONF_RX_BUFFERS 1
#endif
#endif #endif
/** @} */ /** @} */

378
cpu/avr/radio/rf230bb/halbb.c
View file

@ -65,26 +65,14 @@
#include <stdlib.h> #include <stdlib.h>
#include "hal.h" #include "hal.h"
#if defined(__AVR_ATmega128RFA1__)
#include <avr/io.h>
#include "atmega128rfa1_registermap.h"
#else
#include "at86rf230_registermap.h" #include "at86rf230_registermap.h"
/*============================ MACROS ========================================*/ #endif
/*
* Macros defined for the radio transceiver's access modes.
*
* These functions are implemented as macros since they are used very often.
*/
#define HAL_DUMMY_READ (0x00) /**< Dummy value for the SPI. */
#define HAL_TRX_CMD_RW (0xC0) /**< Register Write (short mode). */
#define HAL_TRX_CMD_RR (0x80) /**< Register Read (short mode). */
#define HAL_TRX_CMD_FW (0x60) /**< Frame Transmit Mode (long mode). */
#define HAL_TRX_CMD_FR (0x20) /**< Frame Receive Mode (long mode). */
#define HAL_TRX_CMD_SW (0x40) /**< SRAM Write. */
#define HAL_TRX_CMD_SR (0x00) /**< SRAM Read. */
#define HAL_TRX_CMD_RADDRM (0x7F) /**< Register Address Mask. */
#define HAL_CALCULATED_CRC_OK (0) /**< CRC calculated over the frame including the CRC field should be 0. */
/*============================ TYPDEFS =======================================*/
/*============================ VARIABLES =====================================*/ /*============================ VARIABLES =====================================*/
/** \brief This is a file internal variable that contains the 16 MSB of the /** \brief This is a file internal variable that contains the 16 MSB of the
* system time. * system time.
@ -100,11 +88,10 @@
static uint16_t hal_system_time = 0; static uint16_t hal_system_time = 0;
volatile extern signed char rf230_last_rssi; volatile extern signed char rf230_last_rssi;
/*Flag section.*/ //static uint8_t volatile hal_bat_low_flag;
//static uint8_t volatile hal_bat_low_flag; /**< BAT_LOW flag. */ //static uint8_t volatile hal_pll_lock_flag;
//static uint8_t volatile hal_pll_lock_flag; /**< PLL_LOCK flag. */
/*Callbacks.*/ /*============================ CALLBACKS =====================================*/
/** \brief This function is called when a rx_start interrupt is signaled. /** \brief This function is called when a rx_start interrupt is signaled.
* *
@ -130,10 +117,24 @@ volatile extern signed char rf230_last_rssi;
* \see hal_set_trx_end_event_handler * \see hal_set_trx_end_event_handler
*/ */
//static hal_trx_end_isr_event_handler_t trx_end_callback; //static hal_trx_end_isr_event_handler_t trx_end_callback;
/*============================ PROTOTYPES ====================================*/
/*============================ IMPLEMENTATION ================================*/
#if defined(__AVR__) /*============================ IMPLEMENTATION ================================*/
#if defined(__AVR_ATmega128RFA1__)
//#include <avr/io.h>
#include <avr/interrupt.h>
/* AVR1281 with internal RF231 radio */
#define HAL_SPI_TRANSFER_OPEN()
//#define HAL_SPI_TRANSFER_WRITE(to_write) (SPDR = (to_write))
#define HAL_SPI_TRANSFER_WAIT()
#define HAL_SPI_TRANSFER_READ() (SPDR)
#define HAL_SPI_TRANSFER_CLOSE()
#if 0
#define HAL_SPI_TRANSFER(to_write) ( \
HAL_SPI_TRANSFER_WRITE(to_write), \
HAL_SPI_TRANSFER_WAIT(), \
HAL_SPI_TRANSFER_READ() )
#endif
#elif defined(__AVR__)
/* /*
* AVR with hardware SPI tranfers (TODO: move to hw spi hal for avr cpu) * AVR with hardware SPI tranfers (TODO: move to hw spi hal for avr cpu)
*/ */
@ -198,7 +199,22 @@ inline uint8_t spiWrite(uint8_t byte)
/** \brief This function initializes the Hardware Abstraction Layer. /** \brief This function initializes the Hardware Abstraction Layer.
*/ */
#if defined(__AVR__) #if defined(__AVR_ATmega128RFA1__)
//#define HAL_RF230_ISR() ISR(RADIO_VECT)
#define HAL_TIME_ISR() ISR(TIMER1_OVF_vect)
#define HAL_TICK_UPCNT() (TCNT1)
void
hal_init(void)
{
/*Reset variables used in file.*/
hal_system_time = 0;
// TCCR1B = HAL_TCCR1B_CONFIG; /* Set clock prescaler */
// TIFR1 |= (1 << ICF1); /* Clear Input Capture Flag. */
// HAL_ENABLE_OVERFLOW_INTERRUPT(); /* Enable Timer1 overflow interrupt. */
hal_enable_trx_interrupt(); /* Enable interrupts from the radio transceiver. */
}
#elif defined(__AVR__)
#define HAL_RF230_ISR() ISR(RADIO_VECT) #define HAL_RF230_ISR() ISR(RADIO_VECT)
#define HAL_TIME_ISR() ISR(TIMER1_OVF_vect) #define HAL_TIME_ISR() ISR(TIMER1_OVF_vect)
#define HAL_TICK_UPCNT() (TCNT1) #define HAL_TICK_UPCNT() (TCNT1)
@ -406,6 +422,42 @@ hal_init(void)
// HAL_LEAVE_CRITICAL_REGION(); // HAL_LEAVE_CRITICAL_REGION();
//} //}
#if defined(__AVR_ATmega128RFA1__)
/* Hack for internal radio registers. hal_register_read and hal_register_write are
handled through defines, but the preprocesser can't parse a macro containing
another #define with multiple arguments, e.g. using
#define hal_subregister_read( address, mask, position ) (address&mask)>>position
#define SR_TRX_STATUS TRX_STATUS, 0x1f, 0
the following only sees 1 argument to the macro
return hal_subregister_read(SR_TRX_STATUS);
Possible fix is through two defines:
#define x_hal_subregister_read(x) hal_subregister_read(x);
#define hal_subregister_read( address, mask, position ) (address&mask)>>position
but the subregister defines in atmega128rfa1_registermap.h are currently set up without
the _SFR_MEM8 attribute, for use by hal_subregister_write.
*/
uint8_t
hal_subregister_read(uint16_t address, uint8_t mask, uint8_t position)
{
return (_SFR_MEM8(address)&mask)>>position;
}
void
hal_subregister_write(uint16_t address, uint8_t mask, uint8_t position,
uint8_t value)
{
cli();
uint8_t register_value = _SFR_MEM8(address);
register_value &= ~mask;
value <<= position;
value &= mask;
value |= register_value;
_SFR_MEM8(address) = value;
sei();
}
#else /* defined(__AVR_ATmega128RFA1__) */
/*----------------------------------------------------------------------------*/ /*----------------------------------------------------------------------------*/
/** \brief This function reads data from one of the radio transceiver's registers. /** \brief This function reads data from one of the radio transceiver's registers.
* *
@ -419,18 +471,17 @@ hal_init(void)
uint8_t uint8_t
hal_register_read(uint8_t address) hal_register_read(uint8_t address)
{ {
uint8_t register_value;
/* Add the register read command to the register address. */ /* Add the register read command to the register address. */
address &= HAL_TRX_CMD_RADDRM; /* Address should be < 0x2f so no need to mask */
address |= HAL_TRX_CMD_RR; // address &= 0x3f;
address |= 0x80;
uint8_t register_value = 0;
HAL_SPI_TRANSFER_OPEN(); HAL_SPI_TRANSFER_OPEN();
/*Send Register address and read register content.*/ /*Send Register address and read register content.*/
register_value = HAL_SPI_TRANSFER(address); // dummy read HAL_SPI_TRANSFER(address);
register_value = HAL_SPI_TRANSFER(0);
register_value = HAL_SPI_TRANSFER(register_value); // dummy write
HAL_SPI_TRANSFER_CLOSE(); HAL_SPI_TRANSFER_CLOSE();
@ -449,19 +500,17 @@ hal_register_read(uint8_t address)
void void
hal_register_write(uint8_t address, uint8_t value) hal_register_write(uint8_t address, uint8_t value)
{ {
/* Add the Register Write command to the address. */ /* Add the Register Write (short mode) command to the address. */
address = HAL_TRX_CMD_RW | (HAL_TRX_CMD_RADDRM & address); address = 0xc0 | address;
HAL_SPI_TRANSFER_OPEN(); HAL_SPI_TRANSFER_OPEN();
/*Send Register address and write register content.*/ /*Send Register address and write register content.*/
uint8_t dummy_read = HAL_SPI_TRANSFER(address); HAL_SPI_TRANSFER(address);
HAL_SPI_TRANSFER(value);
dummy_read = HAL_SPI_TRANSFER(value);
HAL_SPI_TRANSFER_CLOSE(); HAL_SPI_TRANSFER_CLOSE();
} }
/*----------------------------------------------------------------------------*/ /*----------------------------------------------------------------------------*/
/** \brief This function reads the value of a specific subregister. /** \brief This function reads the value of a specific subregister.
* *
@ -483,7 +532,6 @@ hal_subregister_read(uint8_t address, uint8_t mask, uint8_t position)
return register_value; return register_value;
} }
/*----------------------------------------------------------------------------*/ /*----------------------------------------------------------------------------*/
/** \brief This function writes a new value to one of the radio transceiver's /** \brief This function writes a new value to one of the radio transceiver's
* subregisters. * subregisters.
@ -501,7 +549,7 @@ hal_subregister_write(uint8_t address, uint8_t mask, uint8_t position,
uint8_t value) uint8_t value)
{ {
/* Read current register value and mask area outside the subregister. */ /* Read current register value and mask area outside the subregister. */
uint8_t register_value = hal_register_read(address); volatile uint8_t register_value = hal_register_read(address);
register_value &= ~mask; register_value &= ~mask;
/* Start preparing the new subregister value. shift in place and mask. */ /* Start preparing the new subregister value. shift in place and mask. */
@ -513,7 +561,7 @@ hal_subregister_write(uint8_t address, uint8_t mask, uint8_t position,
/* Write the modified register value. */ /* Write the modified register value. */
hal_register_write(address, value); hal_register_write(address, value);
} }
#endif /* defined(__AVR_ATmega128RFA1__) */
/*----------------------------------------------------------------------------*/ /*----------------------------------------------------------------------------*/
/** \brief This function will upload a frame from the radio transceiver's frame /** \brief This function will upload a frame from the radio transceiver's frame
* buffer. * buffer.
@ -522,7 +570,8 @@ hal_subregister_write(uint8_t address, uint8_t mask, uint8_t position,
* is out of the defined bounds. Then the frame length, lqi value and crc * is out of the defined bounds. Then the frame length, lqi value and crc
* be set to zero. This is done to indicate an error. * be set to zero. This is done to indicate an error.
* This version is optimized for use with contiki RF230BB driver. * This version is optimized for use with contiki RF230BB driver.
* The callback routine and CRC are left out for speed in reading the rx buffrer . * The callback routine and CRC are left out for speed in reading the rx buffer.
* Any delays here can lead to overwrites by the next packet!
* *
* \param rx_frame Pointer to the data structure where the frame is stored. * \param rx_frame Pointer to the data structure where the frame is stored.
* \param rx_callback Pointer to callback function for receiving one byte at a time. * \param rx_callback Pointer to callback function for receiving one byte at a time.
@ -531,6 +580,26 @@ void
//hal_frame_read(hal_rx_frame_t *rx_frame, rx_callback_t rx_callback) //hal_frame_read(hal_rx_frame_t *rx_frame, rx_callback_t rx_callback)
hal_frame_read(hal_rx_frame_t *rx_frame) hal_frame_read(hal_rx_frame_t *rx_frame)
{ {
#if defined(__AVR_ATmega128RFA1__)
uint8_t frame_length,*rx_data,*rx_buffer;
rx_data = (rx_frame->data);
frame_length = TST_RX_LENGTH; //frame length, not including lqi?
rx_frame->length = frame_length;
rx_buffer=(uint8_t *)0x180; //start of fifo in i/o space
do{
*rx_data++ = _SFR_MEM8(rx_buffer++);
} while (--frame_length > 0);
/*Read LQI value for this frame.*/
rx_frame->lqi = *rx_buffer;
if (1) {
#else /* defined(__AVR_ATmega128RFA1__) */
uint8_t *rx_data; uint8_t *rx_data;
/* check that we have either valid frame pointer or callback pointer */ /* check that we have either valid frame pointer or callback pointer */
@ -539,14 +608,15 @@ hal_frame_read(hal_rx_frame_t *rx_frame)
HAL_SPI_TRANSFER_OPEN(); HAL_SPI_TRANSFER_OPEN();
/*Send frame read command.*/ /*Send frame read (long mode) command.*/
(void)HAL_SPI_TRANSFER(HAL_TRX_CMD_FR); HAL_SPI_TRANSFER(0x20);
/*Read frame length. This includes the checksum. */ /*Read frame length. This includes the checksum. */
uint8_t frame_length = HAL_SPI_TRANSFER(0); uint8_t frame_length = HAL_SPI_TRANSFER(0);
/*Check for correct frame length.*/ /*Check for correct frame length.*/
if ((frame_length >= HAL_MIN_FRAME_LENGTH) && (frame_length <= HAL_MAX_FRAME_LENGTH)){ // if ((frame_length >= HAL_MIN_FRAME_LENGTH) && (frame_length <= HAL_MAX_FRAME_LENGTH)){
if (1) {
// uint16_t crc = 0; // uint16_t crc = 0;
// if (rx_frame){ // if (rx_frame){
rx_data = (rx_frame->data); rx_data = (rx_frame->data);
@ -584,12 +654,13 @@ hal_frame_read(hal_rx_frame_t *rx_frame)
// rx_callback(HAL_SPI_TRANSFER_READ()); // rx_callback(HAL_SPI_TRANSFER_READ());
// } // }
#endif /* defined(__AVR_ATmega128RFA1__) */
/*Check calculated crc, and set crc field in hal_rx_frame_t accordingly.*/ /*Check calculated crc, and set crc field in hal_rx_frame_t accordingly.*/
// if (rx_frame){ // if (rx_frame){
rx_frame->crc = 1; rx_frame->crc = 1;
// } else { // } else {
// rx_callback(crc != HAL_CALCULATED_CRC_OK); // rx_callback(crc != 0);
// } // }
} else { } else {
// if (rx_frame){ // if (rx_frame){
@ -612,24 +683,47 @@ hal_frame_read(hal_rx_frame_t *rx_frame)
void void
hal_frame_write(uint8_t *write_buffer, uint8_t length) hal_frame_write(uint8_t *write_buffer, uint8_t length)
{ {
length &= HAL_TRX_CMD_RADDRM; /* Truncate length to maximum frame length. */ #if defined(__AVR_ATmega128RFA1__)
uint8_t *tx_buffer;
tx_buffer=(uint8_t *)0x180; //start of fifo in i/o space
/* Write frame length, including the two byte checksum */
/* The top bit of the length field shall be set to 0 for IEEE 802.15.4 compliant frames */
/* It should already be clear, so bypassing the masking is sanity check of the uip stack */
// length &= 0x7f;
_SFR_MEM8(tx_buffer++) = length;
/* Download to the Frame Buffer.
* When the FCS is autogenerated there is no need to transfer the last two bytes
* since they will be overwritten.
*/
#if !RF230_CONF_CHECKSUM
length -= 2;
#endif
do _SFR_MEM8(tx_buffer++)= *write_buffer++; while (--length);
#else /* defined(__AVR_ATmega128RFA1__) */
/* Optionally truncate length to maximum frame length.
* Not doing this is a fast way to know when the application needs fixing!
*/
// length &= 0x7f;
HAL_SPI_TRANSFER_OPEN(); HAL_SPI_TRANSFER_OPEN();
/*SEND FRAME WRITE COMMAND AND FRAME LENGTH.*/ /* Send Frame Transmit (long mode) command and frame length */
HAL_SPI_TRANSFER(0x60);
HAL_SPI_TRANSFER(length);
uint8_t dummy_read = HAL_SPI_TRANSFER(HAL_TRX_CMD_FW); /* Download to the Frame Buffer.
* When the FCS is autogenerated there is no need to transfer the last two bytes
dummy_read = HAL_SPI_TRANSFER(length); * since they will be overwritten.
*/
/* Download to the Frame Buffer. */ #if !RF230_CONF_CHECKSUM
/* Note an autogenerated FCS is inserted into the last two bytes, so there is no length -= 2;
* need to transfer them to the buffer */ #endif
do{ do HAL_SPI_TRANSFER(*write_buffer++); while (--length);
dummy_read = HAL_SPI_TRANSFER(*write_buffer++);
} while (--length > 2);
HAL_SPI_TRANSFER_CLOSE(); HAL_SPI_TRANSFER_CLOSE();
#endif /* defined(__AVR_ATmega128RFA1__) */
} }
/*----------------------------------------------------------------------------*/ /*----------------------------------------------------------------------------*/
@ -647,14 +741,14 @@ hal_frame_write(uint8_t *write_buffer, uint8_t length)
// HAL_SPI_TRANSFER_OPEN(); // HAL_SPI_TRANSFER_OPEN();
/*Send SRAM read command.*/ /*Send SRAM read command.*/
// uint8_t dummy_read = HAL_SPI_TRANSFER(HAL_TRX_CMD_SR); // HAL_SPI_TRANSFER(0x00);
/*Send address where to start reading.*/ /*Send address where to start reading.*/
// dummy_read = HAL_SPI_TRANSFER(address); // HAL_SPI_TRANSFER(address);
/*Upload the chosen memory area.*/ /*Upload the chosen memory area.*/
// do{ // do{
// *data++ = HAL_SPI_TRANSFER(HAL_DUMMY_READ); // *data++ = HAL_SPI_TRANSFER(0);
// } while (--length > 0); // } while (--length > 0);
// HAL_SPI_TRANSFER_CLOSE(); // HAL_SPI_TRANSFER_CLOSE();
@ -664,7 +758,8 @@ hal_frame_write(uint8_t *write_buffer, uint8_t length)
/*----------------------------------------------------------------------------*/ /*----------------------------------------------------------------------------*/
/** \brief Write SRAM /** \brief Write SRAM
* *
* This function writes into the SRAM of the radio transceiver. * This function writes into the SRAM of the radio transceiver. It can reduce
* SPI transfers if only part of a frame is to be changed before retransmission.
* *
* \param address Address in the TRX's SRAM where the write burst should start * \param address Address in the TRX's SRAM where the write burst should start
* \param length Length of the write burst * \param length Length of the write burst
@ -676,14 +771,14 @@ hal_frame_write(uint8_t *write_buffer, uint8_t length)
// HAL_SPI_TRANSFER_OPEN(); // HAL_SPI_TRANSFER_OPEN();
/*Send SRAM write command.*/ /*Send SRAM write command.*/
// uint8_t dummy_read = HAL_SPI_TRANSFER(HAL_TRX_CMD_SW); // HAL_SPI_TRANSFER(0x40);
/*Send address where to start writing to.*/ /*Send address where to start writing to.*/
// dummy_read = HAL_SPI_TRANSFER(address); // HAL_SPI_TRANSFER(address);
/*Upload the chosen memory area.*/ /*Upload the chosen memory area.*/
// do{ // do{
// dummy_read = HAL_SPI_TRANSFER(*data++); // HAL_SPI_TRANSFER(*data++);
// } while (--length > 0); // } while (--length > 0);
// HAL_SPI_TRANSFER_CLOSE(); // HAL_SPI_TRANSFER_CLOSE();
@ -702,7 +797,10 @@ void RADIO_VECT(void);
#else /* !DOXYGEN */ #else /* !DOXYGEN */
/* These link to the RF230BB driver in rf230.c */ /* These link to the RF230BB driver in rf230.c */
void rf230_interrupt(void); void rf230_interrupt(void);
extern hal_rx_frame_t rxframe;
extern hal_rx_frame_t rxframe[RF230_CONF_RX_BUFFERS];
extern uint8_t rxframe_head,rxframe_tail;
/* rf230interruptflag can be printed in the main idle loop for debugging */ /* rf230interruptflag can be printed in the main idle loop for debugging */
#define DEBUG 0 #define DEBUG 0
#if DEBUG #if DEBUG
@ -712,6 +810,121 @@ volatile char rf230interruptflag;
#define INTERRUPTDEBUG(arg) #define INTERRUPTDEBUG(arg)
#endif #endif
#if defined(__AVR_ATmega128RFA1__)
/* The atmega128rfa1 has individual interrupts for the integrated radio */
/* Whichever are enabled by the RF230 driver must be present even if not used! */
ISR(TRX24_RX_END_vect)
{
INTERRUPTDEBUG(11);
/* Received packet interrupt */
/* Buffer the frame and call rf230_interrupt to schedule poll for rf230 receive process */
// if (rxframe.length) break; //toss packet if last one not processed yet
if (rxframe[rxframe_tail].length) INTERRUPTDEBUG(42); else INTERRUPTDEBUG(12);
#ifdef RF230_MIN_RX_POWER
/* Discard packets weaker than the minimum if defined. This is for testing miniature meshes.*/
/* Save the rssi for printing in the main loop */
#if RF230_CONF_AUTOACK
// rf230_last_rssi=hal_subregister_read(SR_ED_LEVEL);
rf230_last_rssi=hal_register_read(RG_PHY_ED_LEVEL);
#endif
// if (rf230_last_rssi >= RF230_MIN_RX_POWER) {
if (1) {
#endif
hal_frame_read(&rxframe[rxframe_tail]);
rxframe_tail++;if (rxframe_tail >= RF230_CONF_RX_BUFFERS) rxframe_tail=0;
rf230_interrupt();
#ifdef RF230_MIN_RX_POWER
}
#endif
}
ISR(TRX24_RX_START_vect)
{
INTERRUPTDEBUG(10);
/* Save RSSI for this packet if not in extended mode, scaling to 1dB resolution */
#if !RF230_CONF_AUTOACK
rf230_last_rssi = 3 * hal_subregister_read(SR_RSSI);
#endif
}
ISR(TRX24_PLL_LOCK_vect)
{
}
ISR(TRX24_PLL_UNLOCK_vect)
{
}
#if 0
HAL_RF230_ISR() //for reference, for now
{
/*The following code reads the current system time. This is done by first
reading the hal_system_time and then adding the 16 LSB directly from the
hardware counter.
*/
// uint32_t isr_timestamp = hal_system_time;
// isr_timestamp <<= 16;
// isr_timestamp |= HAL_TICK_UPCNT(); // TODO: what if this wraps after reading hal_system_time?
// isr_timestamp /= HAL_US_PER_SYMBOL; /* Divide so that we get time in 16us resolution. */
// isr_timestamp &= HAL_SYMBOL_MASK;
uint8_t interrupt_source;
INTERRUPTDEBUG(1);
/*Read Interrupt source.*/
interrupt_source = IRQ_STATUS;
/*Handle the incomming interrupt. Prioritized.*/
if (interrupt_source & (1>>RX_START)){
INTERRUPTDEBUG(10);
/* Save RSSI for this packet if not in extended mode, scaling to 1dB resolution */
#if !RF230_CONF_AUTOACK
rf230_last_rssi = 3 * hal_subregister_read(SR_RSSI);
#endif
} else if (interrupt_source & (1<<RX_END)){
INTERRUPTDEBUG(11);
/* Received packet interrupt */
/* Buffer the frame and call rf230_interrupt to schedule poll for rf230 receive process */
// if (rxframe.length) break; //toss packet if last one not processed yet
if (rxframe[rxframe_tail].length) INTERRUPTDEBUG(42); else INTERRUPTDEBUG(12);
#ifdef RF230_MIN_RX_POWER
/* Discard packets weaker than the minimum if defined. This is for testing miniature meshes.*/
/* Save the rssi for printing in the main loop */
#if RF230_CONF_AUTOACK
// rf230_last_rssi=hal_subregister_read(SR_ED_LEVEL);
rf230_last_rssi=hal_register_read(RG_PHY_ED_LEVEL);
#endif
// if (rf230_last_rssi >= RF230_MIN_RX_POWER) {
if (1) {
#endif
hal_frame_read(&rxframe[rxframe_tail]);
rxframe_tail++;if (rxframe_tail >= RF230_CONF_RX_BUFFERS) rxframe_tail=0;
rf230_interrupt();
// trx_end_callback(isr_timestamp);
#ifdef RF230_MIN_RX_POWER
}
#endif
} else if (interrupt_source & (1<<TX_END)){
INTERRUPTDEBUG(13);
;
} else if (interrupt_source & (1<<PLL_UNLOCK)){
INTERRUPTDEBUG(14);
;
} else if (interrupt_source & (1<<PLL_LOCK)){
INTERRUPTDEBUG(15);
// hal_pll_lock_flag++;
;
} else {
INTERRUPTDEBUG(99);
;
}
}
#endif
#else /* defined(__AVR_ATmega128RFA1__) */
/* Separate RF230 has a single radio interrupt and the source must be read from the IRQ_STATUS register */
HAL_RF230_ISR() HAL_RF230_ISR()
{ {
/*The following code reads the current system time. This is done by first /*The following code reads the current system time. This is done by first
@ -727,14 +940,14 @@ HAL_RF230_ISR()
INTERRUPTDEBUG(1); INTERRUPTDEBUG(1);
/* Using SPI bus from ISR is generally a bad idea... */ /* Using SPI bus from ISR is generally a bad idea... */
/* Note: all IRQ are not always automatically disabled when running in ISR */ /* Note: all IRQ are not always automatically disabled when running in ISR */
HAL_SPI_TRANSFER_OPEN(); HAL_SPI_TRANSFER_OPEN();
/*Read Interrupt source.*/ /*Read Interrupt source.*/
/*Send Register address and read register content.*/ /*Send Register address and read register content.*/
HAL_SPI_TRANSFER_WRITE(RG_IRQ_STATUS | HAL_TRX_CMD_RR); HAL_SPI_TRANSFER_WRITE(0x80 | RG_IRQ_STATUS);
/* This is the second part of the convertion of system time to a 16 us time /* This is the second part of the convertion of system time to a 16 us time
base. The division is moved here so we can spend less time waiting for SPI base. The division is moved here so we can spend less time waiting for SPI
@ -745,10 +958,13 @@ HAL_RF230_ISR()
HAL_SPI_TRANSFER_WAIT(); /* AFTER possible interleaved processing */ HAL_SPI_TRANSFER_WAIT(); /* AFTER possible interleaved processing */
#if 0 //dak
interrupt_source = HAL_SPI_TRANSFER_READ(); /* The interrupt variable is used as a dummy read. */ interrupt_source = HAL_SPI_TRANSFER_READ(); /* The interrupt variable is used as a dummy read. */
interrupt_source = HAL_SPI_TRANSFER(interrupt_source); interrupt_source = HAL_SPI_TRANSFER(interrupt_source);
#else
interrupt_source = HAL_SPI_TRANSFER(0);
#endif
HAL_SPI_TRANSFER_CLOSE(); HAL_SPI_TRANSFER_CLOSE();
/*Handle the incomming interrupt. Prioritized.*/ /*Handle the incomming interrupt. Prioritized.*/
@ -757,6 +973,7 @@ HAL_RF230_ISR()
/* Save RSSI for this packet if not in extended mode, scaling to 1dB resolution */ /* Save RSSI for this packet if not in extended mode, scaling to 1dB resolution */
#if !RF230_CONF_AUTOACK #if !RF230_CONF_AUTOACK
#if 0 // 3-clock shift and add is faster on machines with no hardware multiply #if 0 // 3-clock shift and add is faster on machines with no hardware multiply
// While the compiler should use similar code for multiply by 3 there may be a bug with -Os in avr-gcc that calls the general subroutine
rf230_last_rssi = hal_subregister_read(SR_RSSI); rf230_last_rssi = hal_subregister_read(SR_RSSI);
rf230_last_rssi = (rf230_last_rssi <<1) + rf230_last_rssi; rf230_last_rssi = (rf230_last_rssi <<1) + rf230_last_rssi;
#else // Faster with 1-clock multiply. Raven and Jackdaw have 2-clock multiply so same speed while saving 2 bytes of program memory #else // Faster with 1-clock multiply. Raven and Jackdaw have 2-clock multiply so same speed while saving 2 bytes of program memory
@ -766,9 +983,7 @@ HAL_RF230_ISR()
// if(rx_start_callback != NULL){ // if(rx_start_callback != NULL){
// /* Read Frame length and call rx_start callback. */ // /* Read Frame length and call rx_start callback. */
// HAL_SPI_TRANSFER_OPEN(); // HAL_SPI_TRANSFER_OPEN();
// uint8_t frame_length = HAL_SPI_TRANSFER(0x20);
// uint8_t frame_length = HAL_SPI_TRANSFER(HAL_TRX_CMD_FR);
// frame_length = HAL_SPI_TRANSFER(frame_length); // frame_length = HAL_SPI_TRANSFER(frame_length);
// HAL_SPI_TRANSFER_CLOSE(); // HAL_SPI_TRANSFER_CLOSE();
@ -786,31 +1001,25 @@ HAL_RF230_ISR()
/* Received packet interrupt */ /* Received packet interrupt */
/* Buffer the frame and call rf230_interrupt to schedule poll for rf230 receive process */ /* Buffer the frame and call rf230_interrupt to schedule poll for rf230 receive process */
// if (rxframe.length) break; //toss packet if last one not processed yet // if (rxframe.length) break; //toss packet if last one not processed yet
if (rxframe.length) INTERRUPTDEBUG(42); else INTERRUPTDEBUG(12); if (rxframe[rxframe_tail].length) INTERRUPTDEBUG(42); else INTERRUPTDEBUG(12);
#ifdef RF230_MIN_RX_POWER #ifdef RF230_MIN_RX_POWER
/* Discard packets weaker than the minimum if defined. This is for testing miniature meshes.*/ /* Discard packets weaker than the minimum if defined. This is for testing miniature meshes.*/
/* Save the rssi for printing in the main loop */ /* Save the rssi for printing in the main loop */
#if RF230_CONF_AUTOACK #if RF230_CONF_AUTOACK
rf230_last_rssi=hal_subregister_read(SR_ED_LEVEL); // rf230_last_rssi=hal_subregister_read(SR_ED_LEVEL);
rf230_last_rssi=hal_register_read(RG_PHY_ED_LEVEL);
#endif #endif
if (rf230_last_rssi >= RF230_MIN_RX_POWER) { if (rf230_last_rssi >= RF230_MIN_RX_POWER) {
#endif #endif
hal_frame_read(&rxframe); hal_frame_read(&rxframe[rxframe_tail]);
rxframe_tail++;if (rxframe_tail >= RF230_CONF_RX_BUFFERS) rxframe_tail=0;
rf230_interrupt(); rf230_interrupt();
// trx_end_callback(isr_timestamp); // trx_end_callback(isr_timestamp);
#ifdef RF230_MIN_RX_POWER #ifdef RF230_MIN_RX_POWER
} }
#endif #endif
#if 0
/* Enable reception of next packet */
#if RF230_CONF_AUTOACK
hal_subregister_write(SR_TRX_CMD, RX_AACK_ON);
#else
hal_subregister_write(SR_TRX_CMD, RX_ON);
#endif
#endif
} }
} else if (interrupt_source & HAL_TRX_UR_MASK){ } else if (interrupt_source & HAL_TRX_UR_MASK){
@ -838,6 +1047,7 @@ HAL_RF230_ISR()
; ;
} }
} }
#endif /* defined(__AVR_ATmega128RFA1__) */
# endif /* defined(DOXYGEN) */ # endif /* defined(DOXYGEN) */
/*----------------------------------------------------------------------------*/ /*----------------------------------------------------------------------------*/

197
cpu/avr/radio/rf230bb/rf230bb.c
View file

@ -42,8 +42,14 @@
#if defined(__AVR__) #if defined(__AVR__)
#include <avr/io.h> #include <avr/io.h>
#include <util/delay.h>
#define delay_us( us ) ( _delay_us( ( us ) ) ) //_delay_us has the potential to use floating point which brings the 256 byte clz table into RAM
//#include <util/delay.h>
//#define delay_us( us ) ( _delay_us( ( us ) ) )
//_delay_loop_2(uint16_t count) is 4 CPU cycles per iteration, up to 32 milliseconds at 8MHz
#include <util/delay_basic.h>
#define delay_us( us ) ( _delay_loop_2(1+(us*F_CPU)/4000000UL) )
#include <avr/pgmspace.h> #include <avr/pgmspace.h>
#elif defined(__MSP430__) #elif defined(__MSP430__)
#include <io.h> #include <io.h>
@ -116,6 +122,7 @@ struct timestamp {
#define RADIOSLEEPSWHENOFF 1 #define RADIOSLEEPSWHENOFF 1
#endif #endif
//RS232 delays will cause 6lowpan fragment overruns!
#define DEBUG 0 #define DEBUG 0
#if DEBUG #if DEBUG
#define PRINTF(FORMAT,args...) printf_P(PSTR(FORMAT),##args) #define PRINTF(FORMAT,args...) printf_P(PSTR(FORMAT),##args)
@ -141,6 +148,9 @@ struct timestamp {
#if RADIOSTATS #if RADIOSTATS
uint16_t RF230_sendpackets,RF230_receivepackets,RF230_sendfail,RF230_receivefail; uint16_t RF230_sendpackets,RF230_receivepackets,RF230_sendfail,RF230_receivefail;
#endif #endif
/* Set in clock.c every 256 seconds */
uint8_t rf230_calibrate;
uint8_t rf230_calibrated; //debugging
/* Track flow through driver, see contiki-raven-main.c for example of use */ /* Track flow through driver, see contiki-raven-main.c for example of use */
//#define DEBUGFLOWSIZE 64 //#define DEBUGFLOWSIZE 64
@ -217,7 +227,8 @@ uint8_t RF230_receive_on,RF230_sleeping;
static uint8_t channel; static uint8_t channel;
/* Received frames are buffered to rxframe in the interrupt routine in hal.c */ /* Received frames are buffered to rxframe in the interrupt routine in hal.c */
hal_rx_frame_t rxframe; uint8_t rxframe_head,rxframe_tail;
hal_rx_frame_t rxframe[RF230_CONF_RX_BUFFERS];
/*----------------------------------------------------------------------------*/ /*----------------------------------------------------------------------------*/
/** \brief This function return the Radio Transceivers current state. /** \brief This function return the Radio Transceivers current state.
@ -450,7 +461,7 @@ rf230_is_ready_to_send() {
static void static void
flushrx(void) flushrx(void)
{ {
rxframe.length=0; rxframe[rxframe_head].length=0;
} }
/*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*/
static uint8_t locked, lock_on, lock_off; static uint8_t locked, lock_on, lock_off;
@ -538,32 +549,148 @@ set_txpower(uint8_t power)
hal_subregister_write(SR_TX_PWR, power); hal_subregister_write(SR_TX_PWR, power);
} }
} }
/*----------------------------------------------------------------------------*/
/**
\brief Calibrate the internal RC oscillator
This function calibrates the internal RC oscillator, based
on an external 32KHz crystal connected to TIMER2. In order to
verify the calibration result you can program the CKOUT fuse
and monitor the CPU clock on an I/O pin.
*/
#define AVR_ENTER_CRITICAL_REGION( ) {uint8_t volatile saved_sreg = SREG; cli( )
#define AVR_LEAVE_CRITICAL_REGION( ) SREG = saved_sreg;}
uint8_t osccal_original,osccal_calibrated;
void
calibrate_rc_osc_32k(void)
{
#if 1
/* Calibrate RC Oscillator: The calibration routine is done by clocking TIMER2
* from the external 32kHz crystal while running an internal timer simultaneously.
* The internal timer will be clocked at the same speed as the internal RC
* oscillator, while TIMER2 is running at 32768 Hz. This way it is not necessary
* to use a timed loop, and keep track cycles in timed loop vs. optimization
* and compiler.
*/
uint8_t osccal_original = OSCCAL;
volatile uint16_t temp;
/* Start with current value, which for some MCUs could be in upper or lower range */
// PRR0 &= ~((1 << PRTIM2)|(1 << PRTIM1)); /* Enable Timer 1 and 2 */
TIMSK2 = 0x00; /* Disable Timer/Counter 2 interrupts. */
TIMSK1 = 0x00; /* Disable Timer/Counter 1 interrupts. */
/* Enable TIMER/COUNTER 2 to be clocked from the external 32kHz clock crystal.
* Then wait for the timer to become stable before doing any calibration.
*/
ASSR |= (1 << AS2);
// while (ASSR & ((1 << TCN2UB)|(1 << OCR2AUB)|(1 << TCR2AUB)|(1 << TCR2BUB))) { ; }
TCCR2B = 1 << CS20; /* run timer 2 at divide by 1 (32KHz) */
delay_us(50000UL); //crystal takes significant time to stabilize
AVR_ENTER_CRITICAL_REGION();
uint8_t counter = 128;
bool cal_ok = false;
do{
/* wait for timer to be ready for updated config */
TCCR1B = 1 << CS10;
while (ASSR & ((1 << TCN2UB)|(1 << OCR2AUB)|(1 << TCR2AUB)|(1 << TCR2BUB))) { ; }
TCNT2 = 0x80;
TCNT1 = 0;
TIFR2 = 0xFF; /* Clear TIFR2 flags (Yes, really) */
/* Wait for TIMER/COUNTER 2 to overflow. Stop TIMER/COUNTER 1 and 2, and
* read the counter value of TIMER/COUNTER 1. It will now contain the
* number of cpu cycles elapsed within the 3906.25 microsecond period.
*/
while (!(TIFR2 & (1 << TOV2))){
;
}
temp = TCNT1;
TCCR1B = 0;
/* Defining these as floating point introduces a lot of code and the 256 byte .clz table to RAM */
/* At 8 MHz we would expect 8*3906.25 = 31250 CPU clocks */
#define cal_upper 32812 //(31250*1.05) // 32812 = 0x802c
#define cal_lower 29687 //(31250*0.95) // 29687 = 0x73f7
/* Iteratively reduce the error to be within limits */
if (temp < cal_lower) {
/* Too slow. Put the hammer down. */
if (OSCCAL==0x7e) break; //stay in lowest range
if (OSCCAL==0xff) break;
OSCCAL++;
} else if (temp > cal_upper) {
/* Too fast, retard. */
if (OSCCAL==0x81) break; //stay in highest range
if (OSCCAL==0x00) break;
OSCCAL--;
} else {
/* The CPU clock frequency is now within +/- 0.5% of the target value. */
cal_ok = true;
}
counter--;
} while ((counter != 0) && (false == cal_ok));
osccal_calibrated=OSCCAL;
if (true != cal_ok) {
/* We failed, therefore restore previous OSCCAL value. */
OSCCAL = osccal_original;
}
OSCCAL = osccal_original;
TCCR2B = 0;
ASSR &= ~(1 << AS2);
/* Disable both timers again to save power. */
// PRR0 |= (1 << PRTIM2);/* |(1 << PRTIM1); */
AVR_LEAVE_CRITICAL_REGION();
#endif
}
/*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*/
int int
rf230_init(void) rf230_init(void)
{ {
uint8_t i;
DEBUGFLOW('I'); DEBUGFLOW('I');
/* Wait in case VCC just applied */ /* Wait in case VCC just applied */
delay_us(TIME_TO_ENTER_P_ON); delay_us(TIME_TO_ENTER_P_ON);
/* Calibrate oscillator */ /* Calibrate oscillator */
// printf_P(PSTR("\nBefore calibration OSCCAL=%x\n"),OSCCAL);
// calibrate_rc_osc_32k(); // calibrate_rc_osc_32k();
// printf_P(PSTR("After calibration OSCCAL=%x\n"),OSCCAL);
/* Initialize Hardware Abstraction Layer. */ /* Initialize Hardware Abstraction Layer */
hal_init(); hal_init();
/* Set receive buffers empty and point to the first */
for (i=0;i<RF230_CONF_RX_BUFFERS;i++) rxframe[i].length=0;
rxframe_head=0;rxframe_tail=0;
/* Do full rf230 Reset */ /* Do full rf230 Reset */
hal_set_rst_low(); hal_set_rst_low();
hal_set_slptr_low(); hal_set_slptr_low();
delay_us(TIME_RESET); delay_us(TIME_RESET);
hal_set_rst_high(); hal_set_rst_high();
/* Force transition to TRX_OFF. */ /* Force transition to TRX_OFF */
hal_subregister_write(SR_TRX_CMD, CMD_FORCE_TRX_OFF); hal_subregister_write(SR_TRX_CMD, CMD_FORCE_TRX_OFF);
delay_us(TIME_P_ON_TO_TRX_OFF); delay_us(TIME_P_ON_TO_TRX_OFF);
/* Verify that it is a supported version */ /* Verify that it is a supported version */
/* Note gcc optimizes this away if DEBUG is not set! */
//ATMEGA128RFA1 - version 4, ID 31
uint8_t tvers = hal_register_read(RG_VERSION_NUM); uint8_t tvers = hal_register_read(RG_VERSION_NUM);
uint8_t tmanu = hal_register_read(RG_MAN_ID_0); uint8_t tmanu = hal_register_read(RG_MAN_ID_0);
@ -578,6 +705,12 @@ rf230_init(void)
/* Set up number of automatic retries 0-15 (0 implies PLL_ON sends instead of the extended TX_ARET mode */ /* Set up number of automatic retries 0-15 (0 implies PLL_ON sends instead of the extended TX_ARET mode */
hal_subregister_write(SR_MAX_FRAME_RETRIES, RF230_CONF_AUTORETRIES ); hal_subregister_write(SR_MAX_FRAME_RETRIES, RF230_CONF_AUTORETRIES );
/* Set up carrier sense/clear channel assesment parameters for extended operating mode */
hal_subregister_write(SR_MAX_CSMA_RETRIES, 5 );//highest allowed retries
hal_register_write(RG_CSMA_BE, 0x80); //min backoff exponent 0, max 8 (highest allowed)
hal_register_write(RG_CSMA_SEED_0,hal_register_read(RG_PHY_RSSI) );//upper two RSSI reg bits RND_VALUE are random in rf231
// hal_register_write(CSMA_SEED_1,42 );
/* Use automatic CRC unless manual is specified */ /* Use automatic CRC unless manual is specified */
#if RF230_CONF_CHECKSUM #if RF230_CONF_CHECKSUM
hal_subregister_write(SR_TX_AUTO_CRC_ON, 0); hal_subregister_write(SR_TX_AUTO_CRC_ON, 0);
@ -619,10 +752,20 @@ rf230_transmit(unsigned short payload_len)
radiowason=RF230_receive_on; radiowason=RF230_receive_on;
/* If radio is sleeping we have to turn it on first */ /* If radio is sleeping we have to turn it on first */
/* This automatically does the PLL calibrations */
if (RF230_sleeping) { if (RF230_sleeping) {
hal_set_slptr_low(); hal_set_slptr_low();
// delay_us(TIME_SLEEP_TO_TRX_OFF); // delay_us(TIME_SLEEP_TO_TRX_OFF);
RF230_sleeping=0; RF230_sleeping=0;
} else {
/* If on, do periodic calibration. See clock.c */
if (rf230_calibrate) {
hal_subregister_write(SR_PLL_CF_START,1); //takes 80us max
hal_subregister_write(SR_PLL_DCU_START,1); //takes 6us, concurrently
rf230_calibrate=0;
rf230_calibrated=1;
delay_us(80); //?
}
} }
/* Wait for any previous operation or state transition to finish */ /* Wait for any previous operation or state transition to finish */
@ -649,12 +792,19 @@ rf230_transmit(unsigned short payload_len)
#if RF230_CONF_TIMESTAMPS #if RF230_CONF_TIMESTAMPS
rtimer_clock_t txtime = timesynch_time(); rtimer_clock_t txtime = timesynch_time();
#endif /* RF230_CONF_TIMESTAMPS */ #endif /* RF230_CONF_TIMESTAMPS */
#if defined(__AVR_ATmega128RFA1__)
/* No interrupts across frame download! */
cli();
/* slow down the transmit? */
// delay_us(500);
#endif
/* Toggle the SLP_TR pin to initiate the frame transmission */ /* Toggle the SLP_TR pin to initiate the frame transmission */
hal_set_slptr_high(); hal_set_slptr_high();
hal_set_slptr_low(); hal_set_slptr_low();
hal_frame_write(buffer, total_len); hal_frame_write(buffer, total_len);
#if defined(__AVR_ATmega128RFA1__)
sei();
#endif
PRINTF("rf230_transmit:\n"); PRINTF("rf230_transmit:\n");
#if DEBUG>1 #if DEBUG>1
/* Note the dumped packet will have a zero checksum unless compiled with RF230_CONF_CHECKSUM /* Note the dumped packet will have a zero checksum unless compiled with RF230_CONF_CHECKSUM
@ -984,14 +1134,14 @@ if (RF230_receive_on) {
pending = 1; pending = 1;
#if RADIOSTATS #if RADIOSTATS //TODO:This will double count buffered packets
RF230_receivepackets++; RF230_receivepackets++;
#endif #endif
#if RADIOALWAYSON #if RADIOALWAYSON
} else { } else {
DEBUGFLOW('-'); DEBUGFLOW('-');
rxframe.length=0; rxframe[rxframe_head].length=0;
} }
#endif #endif
return 1; return 1;
@ -1048,7 +1198,7 @@ PROCESS_THREAD(rf230_process, ev, data)
} }
/* Get packet from Radio if any, else return zero. /* Get packet from Radio if any, else return zero.
* The two-byte checksum is appended but the returned length does not include it. * The two-byte checksum is appended but the returned length does not include it.
* At present the last frame is buffered in the interrupt routine so this routine * Frames are buffered in the interrupt routine so this routine
* does not access the hardware or change its status * does not access the hardware or change its status
*/ */
/*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*/
@ -1066,7 +1216,7 @@ rf230_read(void *buf, unsigned short bufsize)
struct timestamp t; struct timestamp t;
#endif /* RF230_CONF_TIMESTAMPS */ #endif /* RF230_CONF_TIMESTAMPS */
/* The length includes the twp-byte checksum but not the LQI byte */ /* The length includes the twp-byte checksum but not the LQI byte */
len=rxframe.length; len=rxframe[rxframe_head].length;
if (len==0) { if (len==0) {
#if RADIOALWAYSON && DEBUGFLOWSIZE #if RADIOALWAYSON && DEBUGFLOWSIZE
if (RF230_receive_on==0) {if (debugflow[debugflowsize-1]!='z') DEBUGFLOW('z');} //cxmac calls with radio off? if (RF230_receive_on==0) {if (debugflow[debugflowsize-1]!='z') DEBUGFLOW('z');} //cxmac calls with radio off?
@ -1088,13 +1238,13 @@ if (RF230_receive_on) {
rf230_time_of_departure = 0; rf230_time_of_departure = 0;
#endif /* RF230_CONF_TIMESTAMPS */ #endif /* RF230_CONF_TIMESTAMPS */
// PRINTSHORT("r%d",rxframe.length); // PRINTSHORT("r%d",rxframe[rxframe_head].length);
PRINTF("rf230_read: %u bytes lqi %u crc %u\n",rxframe.length,rxframe.lqi,rxframe.crc); PRINTF("rf230_read: %u bytes lqi %u crc %u\n",rxframe[rxframe_head].length,rxframe[rxframe_head].lqi,rxframe[rxframe_head].crc);
#if DEBUG>1 #if DEBUG>1
{ {
uint8_t i; uint8_t i;
PRINTF("0000"); PRINTF("0000");
for (i=0;i<rxframe.length;i++) PRINTF(" %02x",rxframe.data[i]); for (i=0;i<rxframe[rxframe_head].length;i++) PRINTF(" %02x",rxframe[rxframe_head].data[i]);
PRINTF("\n"); PRINTF("\n");
} }
#endif #endif
@ -1129,11 +1279,16 @@ if (RF230_receive_on) {
return 0; return 0;
} }
/* Transfer the frame, stripping the footer, but copying the checksum */ /* Transfer the frame, stripping the footer, but copying the checksum */
framep=&(rxframe.data[0]); framep=&(rxframe[rxframe_head].data[0]);
memcpy(buf,framep,len-AUX_LEN+CHECKSUM_LEN); memcpy(buf,framep,len-AUX_LEN+CHECKSUM_LEN);
rf230_last_correlation = rxframe[rxframe_head].lqi;
/* Clear the length field to allow buffering of the next packet */ /* Clear the length field to allow buffering of the next packet */
rxframe.length=0; rxframe[rxframe_head].length=0;
rxframe_head++;if (rxframe_head >= RF230_CONF_RX_BUFFERS) rxframe_head=0;
/* If another packet has been buffered, schedule another receive poll */
if (rxframe[rxframe_head].length) rf230_interrupt();
/* Point to the checksum */ /* Point to the checksum */
framep+=len-AUX_LEN; framep+=len-AUX_LEN;
#if RF230_CONF_CHECKSUM #if RF230_CONF_CHECKSUM
@ -1164,14 +1319,15 @@ if (RF230_receive_on) {
rf230_last_rssi = rf230_get_raw_rssi(); rf230_last_rssi = rf230_get_raw_rssi();
#else //faster #else //faster
#if RF230_CONF_AUTOACK #if RF230_CONF_AUTOACK
rf230_last_rssi = hal_subregister_read(SR_ED_LEVEL); //0-84 resolution 1 dB // rf230_last_rssi = hal_subregister_read(SR_ED_LEVEL); //0-84 resolution 1 dB
rf230_last_rssi = hal_register_read(RG_PHY_ED_LEVEL); //0-84, resolution 1 dB
#else #else
/* last_rssi will have been set at RX_START interrupt */ /* last_rssi will have been set at RX_START interrupt */
// rf230_last_rssi = 3*hal_subregister_read(SR_RSSI); //0-28 resolution 3 dB // rf230_last_rssi = 3*hal_subregister_read(SR_RSSI); //0-28 resolution 3 dB
#endif #endif
#endif /* speed vs. generality */ #endif /* speed vs. generality */
rf230_last_correlation = rxframe.lqi; // rf230_last_correlation = rxframe[rxframe_head].lqi;
packetbuf_set_attr(PACKETBUF_ATTR_RSSI, rf230_last_rssi); packetbuf_set_attr(PACKETBUF_ATTR_RSSI, rf230_last_rssi);
packetbuf_set_attr(PACKETBUF_ATTR_LINK_QUALITY, rf230_last_correlation); packetbuf_set_attr(PACKETBUF_ATTR_LINK_QUALITY, rf230_last_correlation);
@ -1251,7 +1407,8 @@ rf230_get_raw_rssi(void)
/* The rssi register is multiplied by 3 to a consistent value from either register */ /* The rssi register is multiplied by 3 to a consistent value from either register */
state=radio_get_trx_state(); state=radio_get_trx_state();
if ((state==RX_AACK_ON) || (state==BUSY_RX_AACK)) { if ((state==RX_AACK_ON) || (state==BUSY_RX_AACK)) {
rssi = hal_subregister_read(SR_ED_LEVEL); //0-84, resolution 1 dB // rssi = hal_subregister_read(SR_ED_LEVEL); //0-84, resolution 1 dB
rssi = hal_register_read(RG_PHY_ED_LEVEL); //0-84, resolution 1 dB
} else { } else {
#if 0 // 3-clock shift and add is faster on machines with no hardware multiply #if 0 // 3-clock shift and add is faster on machines with no hardware multiply
/* avr-gcc may have an -Os bug that uses the general subroutine for multiplying by 3 */ /* avr-gcc may have an -Os bug that uses the general subroutine for multiplying by 3 */

10
cpu/avr/radio/rf230bb/rf230bb.h
View file

@ -53,8 +53,13 @@
/*============================ INCLUDE =======================================*/ /*============================ INCLUDE =======================================*/
#include <stdint.h> #include <stdint.h>
#include <stdbool.h> #include <stdbool.h>
#include "at86rf230_registermap.h"
#include "hal.h" #include "hal.h"
#if defined(__AVR_ATmega128RFA1__)
#include "atmega128rfa1_registermap.h"
#else
#include "at86rf230_registermap.h"
#endif
/*============================ MACROS ========================================*/ /*============================ MACROS ========================================*/
#define SUPPORTED_PART_NUMBER ( 2 ) #define SUPPORTED_PART_NUMBER ( 2 )
@ -155,7 +160,8 @@ typedef enum{
* *
*/ */
typedef enum{ typedef enum{
CCA_ED = 0, /**< Use energy detection above threshold mode. */ // CCA_ED = 0, /**< Use energy detection above threshold mode. */ conflicts with atmega128rfa1 mcu definition
CCA_ENERGY_DETECT = 0, /**< Use energy detection above threshold mode. */
CCA_CARRIER_SENSE = 1, /**< Use carrier sense mode. */ CCA_CARRIER_SENSE = 1, /**< Use carrier sense mode. */
CCA_CARRIER_SENSE_WITH_ED = 2 /**< Use a combination of both energy detection and carrier sense. */ CCA_CARRIER_SENSE_WITH_ED = 2 /**< Use a combination of both energy detection and carrier sense. */
}radio_cca_mode_t; }radio_cca_mode_t;

2
cpu/avr/rtimer-arch.c
View file

@ -65,7 +65,7 @@
#define OCF3C OCF3B #define OCF3C OCF3B
#endif #endif
#if defined(__AVR_AT90USB1287__) #if defined(__AVR_AT90USB1287__) || defined(__AVR_ATmega128RFA1__)
#define ETIMSK TIMSK3 #define ETIMSK TIMSK3
#define ETIFR TIFR3 #define ETIFR TIFR3
#define TICIE3 ICIE3 #define TICIE3 ICIE3