use old style C comments.
convert printf to PRINTF. remove unnecessary MS_DELAY calls from setupTX and setupRX.
This commit is contained in:
nvt-se
parent
15c447e57e
commit
96fbf3b853
|
|
@ -91,6 +91,8 @@
|
|||
// CC1020 driver configuration
|
||||
#define CC1020_BUFFERSIZE 128
|
||||
|
||||
#define CRC_LEN 2
|
||||
|
||||
// PDI (Data in) is on P21
|
||||
#define PDO (P2IN & 0x01)
|
||||
|
||||
|
|
|
|||
|
|
@ -1,46 +1,39 @@
|
|||
/*
|
||||
Copyright 2006, Freie Universitaet Berlin. All rights reserved.
|
||||
|
||||
These sources were developed at the Freie Universitaet Berlin, Computer
|
||||
Systems and Telematics group.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are
|
||||
met:
|
||||
|
||||
- Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
|
||||
- Redistributions in binary form must reproduce the above copyright
|
||||
notice, this list of conditions and the following disclaimer in the
|
||||
documentation and/or other materials provided with the distribution.
|
||||
|
||||
- Neither the name of Freie Universitaet Berlin (FUB) nor the names of its
|
||||
contributors may be used to endorse or promote products derived from
|
||||
this software without specific prior written permission.
|
||||
|
||||
This software is provided by FUB and the contributors on an "as is"
|
||||
basis, without any representations or warranties of any kind, express
|
||||
or implied including, but not limited to, representations or
|
||||
warranties of non-infringement, merchantability or fitness for a
|
||||
particular purpose. In no event shall FUB or contributors be liable
|
||||
for any direct, indirect, incidental, special, exemplary, or
|
||||
consequential damages (including, but not limited to, procurement of
|
||||
substitute goods or services; loss of use, data, or profits; or
|
||||
business interruption) however caused and on any theory of liability,
|
||||
whether in contract, strict liability, or tort (including negligence
|
||||
or otherwise) arising in any way out of the use of this software, even
|
||||
if advised of the possibility of such damage.
|
||||
|
||||
This implementation was developed by the CST group at the FUB.
|
||||
|
||||
For documentation and questions please use the web site
|
||||
http://scatterweb.mi.fu-berlin.de and the mailinglist
|
||||
scatterweb@lists.spline.inf.fu-berlin.de (subscription via the Website).
|
||||
Berlin, 2006
|
||||
* Copyright 2006, Freie Universitaet Berlin. All rights reserved.
|
||||
*
|
||||
* These sources were developed at the Freie Universitaet Berlin, Computer
|
||||
* Systems and Telematics group.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* - Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
*
|
||||
* - Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* - Neither the name of Freie Universitaet Berlin (FUB) nor the names of its
|
||||
* contributors may be used to endorse or promote products derived from
|
||||
* this software without specific prior written permission.
|
||||
*
|
||||
* This software is provided by FUB and the contributors on an "as is"
|
||||
* basis, without any representations or warranties of any kind, express
|
||||
* or implied including, but not limited to, representations or
|
||||
* warranties of non-infringement, merchantability or fitness for a
|
||||
* particular purpose. In no event shall FUB or contributors be liable
|
||||
* for any direct, indirect, incidental, special, exemplary, or
|
||||
* consequential damages (including, but not limited to, procurement of
|
||||
* substitute goods or services; loss of use, data, or profits; or
|
||||
* business interruption) however caused and on any theory of liability,
|
||||
* whether in contract, strict liability, or tort (including negligence
|
||||
* or otherwise) arising in any way out of the use of this software,
|
||||
* even if advised of the possibility of such damage.
|
||||
*
|
||||
* This implementation was originally developed by the CST group at the FUB.
|
||||
*/
|
||||
|
||||
|
||||
/**
|
||||
* \file cc1020.c
|
||||
* \author FUB ScatterWeb Developers, Michael Baar, Nicolas Tsiftes
|
||||
|
|
@ -61,7 +54,13 @@ Berlin, 2006
|
|||
#include "dev/dma.h"
|
||||
#include "energest.h"
|
||||
|
||||
#define CRC_LEN 2 // CHECKSUM
|
||||
#define DEBUG 0
|
||||
#if DEBUG
|
||||
#include <stdio.h>
|
||||
#define PRINTF(...) printf(__VA_ARGS__)
|
||||
#else
|
||||
#define PRINTF(...)
|
||||
#endif
|
||||
|
||||
static int cc1020_calibrate(void);
|
||||
static int cc1020_setupTX(int);
|
||||
|
|
@ -74,21 +73,21 @@ static void cc1020_write_reg(uint8_t addr, uint8_t adata);
|
|||
static void cc1020_load_config(const uint8_t *);
|
||||
static void cc1020_reset(void);
|
||||
|
||||
// current mode of cc1020 chip
|
||||
/* current mode of cc1020 chip */
|
||||
static volatile enum cc1020_state cc1020_state = CC1020_OFF;
|
||||
static volatile uint8_t cc1020_rxbuf[HDRSIZE + CC1020_BUFFERSIZE];
|
||||
static uint8_t cc1020_txbuf[PREAMBLESIZE + SYNCWDSIZE + HDRSIZE +
|
||||
CC1020_BUFFERSIZE + TAILSIZE];
|
||||
//static volatile enum cc1020_rxstate cc1020_rxstate = CC1020_RX_SEARCHING;
|
||||
/*static volatile enum cc1020_rxstate cc1020_rxstate = CC1020_RX_SEARCHING; */
|
||||
|
||||
// number of bytes in receive and transmit buffers respectively.
|
||||
/* number of bytes in receive and transmit buffers respectively. */
|
||||
static uint16_t cc1020_rxlen;
|
||||
static uint16_t cc1020_txlen;
|
||||
|
||||
// received signal strength indicator reading for last received packet
|
||||
/* received signal strength indicator reading for last received packet */
|
||||
static volatile uint8_t rssi;
|
||||
|
||||
// callback when a packet has been received
|
||||
/* callback when a packet has been received */
|
||||
static uint8_t cc1020_pa_power = PA_POWER;
|
||||
|
||||
static volatile int dma_done;
|
||||
|
|
@ -117,7 +116,7 @@ dma_callback(void)
|
|||
static void
|
||||
reset_receiver(void)
|
||||
{
|
||||
// reset receiver
|
||||
/* reset receiver */
|
||||
cc1020_rxlen = 0;
|
||||
|
||||
if((cc1020_state & CC1020_TURN_OFF) && (cc1020_txlen == 0)) {
|
||||
|
|
@ -135,23 +134,23 @@ cc1020_init(const uint8_t *config)
|
|||
cc1020_reset();
|
||||
cc1020_load_config(config);
|
||||
|
||||
// init tx buffer with preamble + syncword
|
||||
/* init tx buffer with preamble + syncword */
|
||||
memset(cc1020_txbuf, PREAMBLE, PREAMBLESIZE);
|
||||
memcpy((char *)cc1020_txbuf + PREAMBLESIZE, &syncword, SYNCWDSIZE);
|
||||
|
||||
// calibrate receiver
|
||||
/* calibrate receiver */
|
||||
cc1020_wakeupRX(RX_CURRENT);
|
||||
if(!cc1020_calibrate()) {
|
||||
printf("rx calibration failed\n");
|
||||
PRINTF("cc1020: rx calibration failed\n");
|
||||
}
|
||||
|
||||
// calibrate transmitter
|
||||
/* calibrate transmitter */
|
||||
cc1020_wakeupTX(TX_CURRENT);
|
||||
if(!cc1020_calibrate()) {
|
||||
printf("tx calibration failed\n");
|
||||
PRINTF("cc1020: tx calibration failed\n");
|
||||
}
|
||||
|
||||
// power down
|
||||
/* power down */
|
||||
cc1020_setupPD();
|
||||
|
||||
process_start(&cc1020_receiver_process, NULL);
|
||||
|
|
@ -165,36 +164,36 @@ cc1020_set_rx(void)
|
|||
|
||||
s = splhigh();
|
||||
|
||||
// Reset SEL for P3[1-3] (CC DIO, DIO, DCLK) and P3[4-5] (Camera Rx+Tx)
|
||||
/* Reset SEL for P3[1-3] (CC DIO, DIO, DCLK) and P3[4-5] (Camera Rx+Tx) */
|
||||
P3SEL &= ~0x3E;
|
||||
IFG1 &= ~(UTXIE0 | URXIE0); // Clear interrupt flags
|
||||
ME1 &= ~(UTXE0 | URXE0); // Disable Uart0 Tx + Rx
|
||||
UCTL0 = SWRST; // U0 into reset state.
|
||||
UCTL0 |= CHAR | SYNC; // 8-bit character, SPI, Slave mode
|
||||
IFG1 &= ~(UTXIE0 | URXIE0); /* Clear interrupt flags */
|
||||
ME1 &= ~(UTXE0 | URXE0); /* Disable Uart0 Tx + Rx */
|
||||
UCTL0 = SWRST; /* U0 into reset state. */
|
||||
UCTL0 |= CHAR | SYNC; /* 8-bit character, SPI, Slave mode */
|
||||
|
||||
// CKPH works also, but not CKPH+CKPL or none of them!!
|
||||
/* CKPH works also, but not CKPH+CKPL or none of them!! */
|
||||
UTCTL0 = CKPL | STC;
|
||||
URCTL0 = 0x00;
|
||||
UBR00 = 0x00; // No baudrate divider
|
||||
UBR10 = 0x00; // settings for a spi
|
||||
UMCTL0 = 0x00; // slave.
|
||||
ME1 |= URXE0; // Enable USART0 RXD, disabling does not yield any powersavings
|
||||
P3SEL |= 0x0A; // Select rx line and clk
|
||||
UCTL0 &= ~SWRST; // Clear reset bit
|
||||
UBR00 = 0x00; /* No baudrate divider */
|
||||
UBR10 = 0x00; /* settings for a spi */
|
||||
UMCTL0 = 0x00; /* slave. */
|
||||
ME1 |= URXE0; /* Enable USART0 RXD, disabling does not yield any powersavings */
|
||||
P3SEL |= 0x0A; /* Select rx line and clk */
|
||||
UCTL0 &= ~SWRST; /* Clear reset bit */
|
||||
splx(s);
|
||||
|
||||
// configure driver
|
||||
cc1020_rxlen = 0; // receive buffer position to start
|
||||
CC1020_SET_OPSTATE(CC1020_RX | CC1020_RX_SEARCHING); // driver state to receive mode
|
||||
/* configure driver */
|
||||
cc1020_rxlen = 0; /* receive buffer position to start */
|
||||
CC1020_SET_OPSTATE(CC1020_RX | CC1020_RX_SEARCHING); /* driver state to receive mode */
|
||||
|
||||
// configure radio
|
||||
/* configure radio */
|
||||
ENERGEST_ON(ENERGEST_TYPE_LISTEN);
|
||||
cc1020_wakeupRX(RX_CURRENT);
|
||||
cc1020_setupRX(RX_CURRENT);
|
||||
LNA_POWER_ON(); // enable amplifier
|
||||
LNA_POWER_ON(); /* enable amplifier */
|
||||
|
||||
// activate
|
||||
IE1 |= URXIE0; // enable interrupt
|
||||
/* activate */
|
||||
IE1 |= URXIE0; /* enable interrupt */
|
||||
}
|
||||
|
||||
void
|
||||
|
|
@ -202,23 +201,23 @@ cc1020_set_tx(void)
|
|||
{
|
||||
int s;
|
||||
|
||||
// configure radio rx
|
||||
/* configure radio rx */
|
||||
ENERGEST_OFF(ENERGEST_TYPE_LISTEN);
|
||||
LNA_POWER_OFF(); // power down LNA
|
||||
LNA_POWER_OFF(); /* power down LNA */
|
||||
s = splhigh();
|
||||
DISABLE_RX_IRQ();
|
||||
P3SEL &= ~0x02; // Ensure Rx line is off
|
||||
P3SEL &= ~0x02; /* Ensure Rx line is off */
|
||||
splx(s);
|
||||
|
||||
// configure radio tx
|
||||
/* configure radio tx */
|
||||
ENERGEST_ON(ENERGEST_TYPE_TRANSMIT);
|
||||
cc1020_wakeupTX(TX_CURRENT);
|
||||
cc1020_setupTX(TX_CURRENT);
|
||||
P3SEL |= 0x0C; // select Tx line and clk
|
||||
U0CTL |= SWRST; // UART to reset mode
|
||||
IFG1 &= ~UTXIFG0; // Reset IFG.
|
||||
P3SEL |= 0x0C; /* select Tx line and clk */
|
||||
U0CTL |= SWRST; /* UART to reset mode */
|
||||
IFG1 &= ~UTXIFG0; /* Reset IFG. */
|
||||
|
||||
// configure driver
|
||||
/* configure driver */
|
||||
CC1020_SET_OPSTATE(CC1020_TX);
|
||||
}
|
||||
|
||||
|
|
@ -234,7 +233,7 @@ cc1020_send(const void *buf, unsigned short len)
|
|||
int try;
|
||||
int normal_header = HDRSIZE + len;
|
||||
int i;
|
||||
uint16_t rxcrc = 0xFFFF; // For checksum purposes
|
||||
uint16_t rxcrc = 0xFFFF; /* For checksum purposes */
|
||||
|
||||
if(cc1020_state == CC1020_OFF) {
|
||||
return -2;
|
||||
|
|
@ -247,11 +246,11 @@ cc1020_send(const void *buf, unsigned short len)
|
|||
/* The preamble and the sync word are already in buffer. */
|
||||
cc1020_txlen = PREAMBLESIZE + SYNCWDSIZE;
|
||||
|
||||
// header
|
||||
/* header */
|
||||
cc1020_txbuf[cc1020_txlen++] = 0x00;
|
||||
cc1020_txbuf[cc1020_txlen++] = normal_header + CRC_LEN;
|
||||
|
||||
// Adding the checksum on header and data
|
||||
/* Adding the checksum on header and data */
|
||||
rxcrc = crc16_add((uint8_t) (normal_header & 0xff), rxcrc);
|
||||
rxcrc = crc16_add((uint8_t) ((normal_header >> 8)& 0xff), rxcrc);
|
||||
|
||||
|
|
@ -259,19 +258,19 @@ cc1020_send(const void *buf, unsigned short len)
|
|||
rxcrc = crc16_add((uint8_t) ((char*)buf)[i], rxcrc);
|
||||
}
|
||||
|
||||
// data to send
|
||||
/* data to send */
|
||||
memcpy((char *)cc1020_txbuf + cc1020_txlen, buf, len);
|
||||
cc1020_txlen += len;
|
||||
|
||||
// Send checksum
|
||||
/* Send checksum */
|
||||
cc1020_txbuf[cc1020_txlen++] = (uint8_t)(rxcrc >> 8);
|
||||
cc1020_txbuf[cc1020_txlen++] = (uint8_t)(rxcrc & 0xFF);
|
||||
|
||||
// suffix
|
||||
/* suffix */
|
||||
cc1020_txbuf[cc1020_txlen++] = TAIL;
|
||||
cc1020_txbuf[cc1020_txlen++] = TAIL;
|
||||
|
||||
// Wait for the medium to become idle.
|
||||
/* Wait for the medium to become idle. */
|
||||
if(cc1020_carrier_sense()) {
|
||||
for(try = 0; try < CC1020_CONF_CCA_TIMEOUT; try++) {
|
||||
MS_DELAY(1);
|
||||
|
|
@ -280,18 +279,18 @@ cc1020_send(const void *buf, unsigned short len)
|
|||
}
|
||||
}
|
||||
if(try == CC1020_CONF_CCA_TIMEOUT) {
|
||||
printf("CCA failed rssi: %d\n", cc1020_get_rssi());
|
||||
PRINTF("cc1020: CCA failed (RSSI %d)\n", cc1020_get_rssi());
|
||||
return -3;
|
||||
}
|
||||
|
||||
// Then wait for a short pseudo-random time before sending.
|
||||
/* Then wait for a short pseudo-random time before sending. */
|
||||
clock_delay(100 * ((random_rand() + 1) & 0xf));
|
||||
}
|
||||
|
||||
// Switch to transceive mode.
|
||||
/* Switch to transceive mode. */
|
||||
cc1020_set_tx();
|
||||
|
||||
// Initiate radio transfer.
|
||||
/* Initiate radio transfer. */
|
||||
dma_done = 0;
|
||||
dma_transfer((unsigned char *)&TXBUF0, cc1020_txbuf, cc1020_txlen);
|
||||
while(!dma_done);
|
||||
|
|
@ -299,7 +298,7 @@ cc1020_send(const void *buf, unsigned short len)
|
|||
ENERGEST_OFF(ENERGEST_TYPE_TRANSMIT);
|
||||
RIMESTATS_ADD(lltx);
|
||||
|
||||
// clean up
|
||||
/* clean up */
|
||||
cc1020_txlen = 0;
|
||||
if(cc1020_state & CC1020_TURN_OFF) {
|
||||
cc1020_off();
|
||||
|
|
@ -356,15 +355,15 @@ cc1020_off(void)
|
|||
int s;
|
||||
|
||||
if(cc1020_state & CC1020_RX_SEARCHING) {
|
||||
// Discard the current read buffer when the radio is shutting down.
|
||||
/* Discard the current read buffer when the radio is shutting down. */
|
||||
cc1020_rxlen = 0;
|
||||
|
||||
LNA_POWER_OFF(); // power down lna
|
||||
LNA_POWER_OFF(); /* power down lna */
|
||||
s = splhigh();
|
||||
DISABLE_RX_IRQ();
|
||||
cc1020_state = CC1020_OFF;
|
||||
splx(s);
|
||||
cc1020_setupPD(); // power down radio
|
||||
cc1020_setupPD(); /* power down radio */
|
||||
ENERGEST_OFF(ENERGEST_TYPE_LISTEN);
|
||||
cc1020_state = CC1020_OFF;
|
||||
} else {
|
||||
|
|
@ -400,7 +399,7 @@ PROCESS_THREAD(cc1020_receiver_process, ev, data)
|
|||
PROCESS_YIELD_UNTIL(ev == PROCESS_EVENT_POLL);
|
||||
|
||||
if(receiver_callback != NULL) {
|
||||
// CHECKSUM CHECK
|
||||
/* CHECKSUM CHECK */
|
||||
uint16_t expected_crc = 0xffff;
|
||||
uint16_t actual_crc = -1;
|
||||
actual_crc = (cc1020_rxbuf[cc1020_rxlen - CRC_LEN] << 8) | cc1020_rxbuf[cc1020_rxlen - CRC_LEN + 1];
|
||||
|
|
@ -449,29 +448,29 @@ interrupt(UART0RX_VECTOR) cc1020_rxhandler(void)
|
|||
shiftbuf.b3 = shiftbuf.b4;
|
||||
shiftbuf.b4 = RXBUF0;
|
||||
if(shiftbuf.i1 == 0xAAD3 && shiftbuf.b3 == 0x91) {
|
||||
// 0 AA D3 91 00 | FF 00 |
|
||||
/* 0 AA D3 91 00 | FF 00 | */
|
||||
syncbs = 0;
|
||||
cc1020_rxbuf[cc1020_rxlen++] = shiftbuf.b4;
|
||||
} else if(shiftbuf.i1 == 0x5569 && shiftbuf.i2 == 0xC880) {
|
||||
// 1 55 69 C8 80 | 7F 80 |
|
||||
/* 1 55 69 C8 80 | 7F 80 | */
|
||||
syncbs = -1;
|
||||
} else if(shiftbuf.i1 == 0xAAB4 && shiftbuf.i2 == 0xE440) {
|
||||
// 2 AA B4 E4 40 | 3F C0 |
|
||||
/* 2 AA B4 E4 40 | 3F C0 | */
|
||||
syncbs = -2;
|
||||
} else if(shiftbuf.i1 == 0x555A && shiftbuf.i2 == 0x7220) {
|
||||
// 3 55 5A 72 20 | 1F E0 |
|
||||
/* 3 55 5A 72 20 | 1F E0 | */
|
||||
syncbs = -3;
|
||||
} else if(shiftbuf.i1 == 0xAAAD && shiftbuf.i2 == 0x3910) {
|
||||
// 4 AA AD 39 10 | 0F F0 |
|
||||
/* 4 AA AD 39 10 | 0F F0 | */
|
||||
syncbs = -4;
|
||||
} else if(shiftbuf.i1 == 0x5556 && shiftbuf.i2 == 0x9C88) {
|
||||
// 5 55 56 9C 88 | 07 F8 |
|
||||
/* 5 55 56 9C 88 | 07 F8 | */
|
||||
syncbs = +3;
|
||||
} else if(shiftbuf.i1 == 0xAAAB && shiftbuf.i2 == 0x4E44) {
|
||||
// 6 AA AB 4E 44 | 03 FC |
|
||||
/* 6 AA AB 4E 44 | 03 FC | */
|
||||
syncbs = +2;
|
||||
} else if(shiftbuf.i1 == 0x5555 && shiftbuf.i2 == 0xA722) {
|
||||
// 7 55 55 A7 22 | 01 FE |
|
||||
/* 7 55 55 A7 22 | 01 FE | */
|
||||
syncbs = +1;
|
||||
} else {
|
||||
return;
|
||||
|
|
@ -522,7 +521,7 @@ cc1020_write_reg(uint8_t addr, uint8_t adata)
|
|||
data = addr << 1;
|
||||
PSEL_ON;
|
||||
|
||||
// Send address bits
|
||||
/* Send address bits */
|
||||
for(i = 0; i < 7; i++) {
|
||||
PCLK_LOW;
|
||||
if(data & 0x80) {
|
||||
|
|
@ -535,15 +534,15 @@ cc1020_write_reg(uint8_t addr, uint8_t adata)
|
|||
nop();
|
||||
}
|
||||
|
||||
// Send read/write bit
|
||||
// Ignore bit in data, always use 1
|
||||
/* Send read/write bit */
|
||||
/* Ignore bit in data, always use 1 */
|
||||
PCLK_LOW;
|
||||
PDI_HIGH;
|
||||
PCLK_HIGH;
|
||||
nop();
|
||||
data = adata;
|
||||
|
||||
// Send data bits
|
||||
/* Send data bits */
|
||||
for(i = 0; i < 8; i++) {
|
||||
PCLK_LOW;
|
||||
if(data & 0x80) {
|
||||
|
|
@ -569,7 +568,7 @@ cc1020_read_reg(uint8_t addr)
|
|||
data = addr << 1;
|
||||
PSEL_ON;
|
||||
|
||||
// Send address bits
|
||||
/* Send address bits */
|
||||
for(i = 0; i < 7; i++) {
|
||||
PCLK_LOW;
|
||||
if(data & 0x80) {
|
||||
|
|
@ -582,15 +581,15 @@ cc1020_read_reg(uint8_t addr)
|
|||
nop();
|
||||
}
|
||||
|
||||
// Send read/write bit
|
||||
// Ignore bit in data, always use 0
|
||||
/* Send read/write bit */
|
||||
/* Ignore bit in data, always use 0 */
|
||||
PCLK_LOW;
|
||||
PDI_LOW;
|
||||
PCLK_HIGH;
|
||||
nop();
|
||||
PCLK_LOW;
|
||||
|
||||
// Receive data bits
|
||||
/* Receive data bits */
|
||||
for(i = 0; i < 8; i++) {
|
||||
nop();
|
||||
PCLK_HIGH;
|
||||
|
|
@ -619,10 +618,10 @@ cc1020_load_config(const uint8_t * config)
|
|||
static void
|
||||
cc1020_reset(void)
|
||||
{
|
||||
// Reset CC1020
|
||||
/* Reset CC1020 */
|
||||
cc1020_write_reg(CC1020_MAIN, 0x0FU & ~0x01U);
|
||||
|
||||
// Bring CC1020 out of reset
|
||||
/* Bring CC1020 out of reset */
|
||||
cc1020_write_reg(CC1020_MAIN, 0x1F);
|
||||
}
|
||||
|
||||
|
|
@ -631,26 +630,26 @@ cc1020_calibrate(void)
|
|||
{
|
||||
unsigned int timeout_cnt;
|
||||
|
||||
// Turn off PA to avoid spurs during calibration in TX mode
|
||||
/* Turn off PA to avoid spurs during calibration in TX mode */
|
||||
cc1020_write_reg(CC1020_PA_POWER, 0x00);
|
||||
|
||||
// Start calibration
|
||||
/* Start calibration */
|
||||
cc1020_write_reg(CC1020_CALIBRATE, 0xB5);
|
||||
MS_DELAY(3);
|
||||
while((cc1020_read_reg(CC1020_STATUS) & CAL_COMPLETE) == 0);
|
||||
MS_DELAY(2);
|
||||
|
||||
// Monitor lock
|
||||
/* Monitor lock */
|
||||
for(timeout_cnt = LOCK_TIMEOUT; timeout_cnt > 0; timeout_cnt--) {
|
||||
if(cc1020_read_reg(CC1020_STATUS) & LOCK_CONTINUOUS) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
// Restore PA_POWER
|
||||
/* Restore PA_POWER */
|
||||
cc1020_write_reg(CC1020_PA_POWER, cc1020_pa_power);
|
||||
|
||||
// Return state of LOCK_CONTINUOUS bit
|
||||
/* Return state of LOCK_CONTINUOUS bit */
|
||||
return (cc1020_read_reg(CC1020_STATUS) & LOCK_CONTINUOUS) == LOCK_CONTINUOUS;
|
||||
}
|
||||
|
||||
|
|
@ -660,7 +659,7 @@ cc1020_lock(void)
|
|||
char lock_status;
|
||||
int i;
|
||||
|
||||
// Monitor LOCK, lasts 420 - 510 cycles @ 4505600 = 93 us - 113 us
|
||||
/* Monitor LOCK, lasts 420 - 510 cycles @ 4505600 = 93 us - 113 us */
|
||||
for(i = LOCK_TIMEOUT; i > 0; i--) {
|
||||
lock_status = cc1020_read_reg(CC1020_STATUS) & LOCK_CONTINUOUS;
|
||||
if(lock_status) {
|
||||
|
|
@ -680,15 +679,14 @@ cc1020_setupRX(int analog)
|
|||
{
|
||||
char lock_status;
|
||||
|
||||
// Switch into RX, switch to freq. reg A
|
||||
/* Switch into RX, switch to freq. reg A */
|
||||
cc1020_write_reg(CC1020_MAIN, 0x01);
|
||||
MS_DELAY(1);
|
||||
lock_status = cc1020_lock();
|
||||
|
||||
// Switch RX part of CC1020 on
|
||||
/* Switch RX part of CC1020 on */
|
||||
cc1020_write_reg(CC1020_INTERFACE, 0x02);
|
||||
|
||||
// Return LOCK status to application
|
||||
/* Return LOCK status to application */
|
||||
return lock_status;
|
||||
}
|
||||
|
||||
|
|
@ -697,18 +695,17 @@ cc1020_setupTX(int analog)
|
|||
{
|
||||
char lock_status;
|
||||
|
||||
// Switch into TX, switch to freq. reg B
|
||||
/* Switch into TX, switch to freq. reg B */
|
||||
cc1020_write_reg(CC1020_MAIN, 0xC1);
|
||||
MS_DELAY(1);
|
||||
lock_status = cc1020_lock();
|
||||
|
||||
// Restore PA_POWER
|
||||
/* Restore PA_POWER */
|
||||
cc1020_write_reg(CC1020_PA_POWER, cc1020_pa_power);
|
||||
|
||||
// Turn OFF DCLK squelch in TX
|
||||
/* Turn OFF DCLK squelch in TX */
|
||||
cc1020_write_reg(CC1020_INTERFACE, 0x01);
|
||||
|
||||
// Return LOCK status to application
|
||||
/* Return LOCK status to application */
|
||||
return lock_status;
|
||||
}
|
||||
|
||||
|
|
@ -731,10 +728,10 @@ cc1020_setupPD(void)
|
|||
static void
|
||||
cc1020_wakeupRX(int analog)
|
||||
{
|
||||
// Turn on crystal oscillator core.
|
||||
/* Turn on crystal oscillator core. */
|
||||
cc1020_write_reg(CC1020_MAIN, 0x1B);
|
||||
|
||||
// Setup bias current adjustment.
|
||||
/* Setup bias current adjustment. */
|
||||
cc1020_write_reg(CC1020_ANALOG, analog);
|
||||
|
||||
/*
|
||||
|
|
@ -743,20 +740,20 @@ cc1020_wakeupRX(int analog)
|
|||
*/
|
||||
MS_DELAY(5);
|
||||
|
||||
// Turn on bias generator.
|
||||
/* Turn on bias generator. */
|
||||
cc1020_write_reg(CC1020_MAIN, 0x19);
|
||||
|
||||
// Turn on frequency synthesizer.
|
||||
/* Turn on frequency synthesizer. */
|
||||
cc1020_write_reg(CC1020_MAIN, 0x11);
|
||||
}
|
||||
|
||||
static void
|
||||
cc1020_wakeupTX(int analog)
|
||||
{
|
||||
// Turn on crystal oscillator core.
|
||||
/* Turn on crystal oscillator core. */
|
||||
cc1020_write_reg(CC1020_MAIN, 0xDB);
|
||||
|
||||
// Setup bias current adjustment.
|
||||
/* Setup bias current adjustment. */
|
||||
cc1020_write_reg(CC1020_ANALOG, analog);
|
||||
|
||||
/*
|
||||
|
|
@ -765,10 +762,10 @@ cc1020_wakeupTX(int analog)
|
|||
*/
|
||||
MS_DELAY(5);
|
||||
|
||||
// Turn on bias generator.
|
||||
/* Turn on bias generator. */
|
||||
cc1020_write_reg(CC1020_MAIN, 0xD9);
|
||||
|
||||
// Turn on frequency synthesizer.
|
||||
/* Turn on frequency synthesizer. */
|
||||
MS_DELAY(1);
|
||||
cc1020_write_reg(CC1020_MAIN, 0xD1);
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue