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tmr

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This commit is contained in:
Mariano Alvira 2010-02-26 15:35:57 -05:00
parent a2b51b0e3c
commit cd5e5b1706
5 changed files with 114 additions and 26 deletions
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1
libmc1322x/include/mc1322x.h
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@ -6,6 +6,7 @@
#include "gpio.h" #include "gpio.h"
#include "crm.h" #include "crm.h"
#include "nvm.h" #include "nvm.h"
#include "tmr.h"
#include "uart1.h" #include "uart1.h"
#include "utils.h" #include "utils.h"

92
libmc1322x/include/tmr.h Normal file
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@ -0,0 +1,92 @@
#include "utils.h"
/* Timer registers are all 16-bit wide with 16-bit access only */
#define TMR_OFFSET (0x20)
#define TMR_BASE (0x80007000)
#define TMR0_BASE (TMR_BASE)
#define TMR1_BASE (TMR_BASE + TMR_OFFSET*1)
#define TMR2_BASE (TMR_BASE + TMR_OFFSET*2)
#define TMR3_BASE (TMR_BASE + TMR_OFFSET*3)
#define TMR_REGOFF_COMP1 (0x0)
#define TMR_REGOFF_COMP2 (0x2)
#define TMR_REGOFF_CAPT (0x4)
#define TMR_REGOFF_LOAD (0x6)
#define TMR_REGOFF_HOLD (0x8)
#define TMR_REGOFF_CNTR (0xa)
#define TMR_REGOFF_CTRL (0xc)
#define TMR_REGOFF_SCTRL (0xe)
#define TMR_REGOFF_CMPLD1 (0x10)
#define TMR_REGOFF_CMPLD2 (0x12)
#define TMR_REGOFF_CSCTRL (0x14)
#define TMR_REGOFF_ENBL (0x1e)
/* one enable register to rule them all */
#define TMR_ENBL ((volatile uint16_t *) TMR0_BASE + TMR_REGOFF_ENBL)
/* Timer 0 registers */
#define TMR0_COMP1 ((volatile uint16_t *) (TMR0_BASE + TMR_REGOFF_COMP1))
#define TMR0_COMP_UP TMR0_COMP1
#define TMR0_COMP2 (TMR0_BASE + TMR_REGOFF_COMP2)
#define TMR0_COMP_DOWN TMR0_COMP2
#define TMR0_CAPT ((volatile uint16_t *) (TMR0_BASE + TMR_REGOFF_CAPT))
#define TMR0_LOAD ((volatile uint16_t *) (TMR0_BASE + TMR_REGOFF_LOAD))
#define TMR0_HOLD ((volatile uint16_t *) (TMR0_BASE + TMR_REGOFF_HOLD))
#define TMR0_CNTR ((volatile uint16_t *) (TMR0_BASE + TMR_REGOFF_CTRL))
#define TMR0_CTRL ((volatile uint16_t *) (TMR0_BASE + TMR_REGOFF_CTRL))
#define TMR0_SCTRL ((volatile uint16_t *) (TMR0_BASE + TMR_REGOFF_SCTRL))
#define TMR0_CMPLD1 ((volatile uint16_t *) (TMR0_BASE + TMR_REGOFF_CMPLD1))
#define TMR0_CMPLD2 ((volatile uint16_t *) (TMR0_BASE + TMR_REGOFF_CMPLD2))
#define TMR0_CSCTRL ((volatile uint16_t *) (TMR0_BASE + TMR_REGOFF_CSCTRL))
/* Timer 1 registers */
#define TMR1_COMP1 ((volatile uint16_t *) (TMR1_BASE + TMR_REGOFF_COMP1))
#define TMR1_COMP_UP TMR1_COMP1
#define TMR1_COMP2 ((volatile uint16_t *) (TMR1_BASE + TMR_REGOFF_COMP2))
#define TMR1_COMP_DOWN TMR1_COMP2
#define TMR1_CAPT ((volatile uint16_t *) (TMR1_BASE + TMR_REGOFF_CAPT))
#define TMR1_LOAD ((volatile uint16_t *) (TMR1_BASE + TMR_REGOFF_LOAD))
#define TMR1_HOLD ((volatile uint16_t *) (TMR1_BASE + TMR_REGOFF_HOLD))
#define TMR1_CNTR ((volatile uint16_t *) (TMR1_BASE + TMR_REGOFF_CTRL))
#define TMR1_CTRL ((volatile uint16_t *) (TMR1_BASE + TMR_REGOFF_CTRL))
#define TMR1_SCTRL ((volatile uint16_t *) (TMR1_BASE + TMR_REGOFF_SCTRL))
#define TMR1_CMPLD1 ((volatile uint16_t *) (TMR1_BASE + TMR_REGOFF_CMPLD1))
#define TMR1_CMPLD2 ((volatile uint16_t *) (TMR1_BASE + TMR_REGOFF_CMPLD2))
#define TMR1_CSCTRL ((volatile uint16_t *) (TMR1_BASE + TMR_REGOFF_CSCTRL))
/* Timer 2 registers */
#define TMR2_COMP1 ((volatile uint16_t *) (TMR2_BASE + TMR_REGOFF_COMP1))
#define TMR2_COMP_UP TMR2_COMP1
#define TMR2_COMP2 ((volatile uint16_t *) (TMR2_BASE + TMR_REGOFF_COMP2))
#define TMR2_COMP_DOWN TMR2_COMP2
#define TMR2_CAPT ((volatile uint16_t *) (TMR2_BASE + TMR_REGOFF_CAPT))
#define TMR2_LOAD ((volatile uint16_t *) (TMR2_BASE + TMR_REGOFF_LOAD))
#define TMR2_HOLD ((volatile uint16_t *) (TMR2_BASE + TMR_REGOFF_HOLD))
#define TMR2_CNTR ((volatile uint16_t *) (TMR2_BASE + TMR_REGOFF_CTRL))
#define TMR2_CTRL ((volatile uint16_t *) (TMR2_BASE + TMR_REGOFF_CTRL))
#define TMR2_SCTRL ((volatile uint16_t *) (TMR2_BASE + TMR_REGOFF_SCTRL))
#define TMR2_CMPLD1 ((volatile uint16_t *) (TMR2_BASE + TMR_REGOFF_CMPLD1))
#define TMR2_CMPLD2 ((volatile uint16_t *) (TMR2_BASE + TMR_REGOFF_CMPLD2))
#define TMR2_CSCTRL ((volatile uint16_t *) (TMR2_BASE + TMR_REGOFF_CSCTRL))
/* Timer 3 registers */
#define TMR3_COMP1 ((volatile uint16_t *) (TMR3_BASE + TMR_REGOFF_COMP1))
#define TMR3_COMP_UP TMR3_COMP1
#define TMR3_COMP2 ((volatile uint16_t *) (TMR3_BASE + TMR_REGOFF_COMP2))
#define TMR3_COMP_DOWN TMR3_COMP2
#define TMR3_CAPT ((volatile uint16_t *) (TMR3_BASE + TMR_REGOFF_CAPT))
#define TMR3_LOAD ((volatile uint16_t *) (TMR3_BASE + TMR_REGOFF_LOAD))
#define TMR3_HOLD ((volatile uint16_t *) (TMR3_BASE + TMR_REGOFF_HOLD))
#define TMR3_CNTR ((volatile uint16_t *) (TMR3_BASE + TMR_REGOFF_CTRL))
#define TMR3_CTRL ((volatile uint16_t *) (TMR3_BASE + TMR_REGOFF_CTRL))
#define TMR3_SCTRL ((volatile uint16_t *) (TMR3_BASE + TMR_REGOFF_SCTRL))
#define TMR3_CMPLD1 ((volatile uint16_t *) (TMR3_BASE + TMR_REGOFF_CMPLD1))
#define TMR3_CMPLD2 ((volatile uint16_t *) (TMR3_BASE + TMR_REGOFF_CMPLD2))
#define TMR3_CSCTRL ((volatile uint16_t *) (TMR3_BASE + TMR_REGOFF_CSCTRL))
#define TCF 15
#define TCF1 4
#define TCF2 5
#define TMR(num, reg) CAT2(TMR,num,_##reg)

2
tests/Makefile
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@ -6,7 +6,7 @@ MC1322X := ..
COBJS := tests.o put.o COBJS := tests.o put.o
# all of the target programs to build # all of the target programs to build
TARGETS := blink-red blink-green blink-blue blink-white blink-allio uart1-loopback nvm-read nvm-write romimg flasher TARGETS := blink-red blink-green blink-blue blink-white blink-allio uart1-loopback nvm-read nvm-write romimg flasher tmr
include $(MC1322X)/Makefile.include include $(MC1322X)/Makefile.include

1
tests/tests.h
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@ -2,6 +2,7 @@
#define TESTS_H #define TESTS_H
#include "put.h" #include "put.h"
#include "led.h"
void uart1_init(uint16_t inc, uint16_t mod); void uart1_init(uint16_t inc, uint16_t mod);
void print_welcome(char* testname); void print_welcome(char* testname);

44
tests/tmr.c
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@ -1,21 +1,15 @@
#define MBAR_GPIO 0x80000000 #include <mc1322x.h>
#define GPIO_PAD_DIR0 0x80000000 #include <board.h>
#define GPIO_DATA0 0x80000008
#define UART1_DATA 0x80005008
#define DELAY 400000
#include "embedded_types.h" #include "tests.h"
#include "utils.h" #include "config.h"
#include "timer.h"
#include "led.h"
#define LED LED_YELLOW #define LED LED_YELLOW
__attribute__ ((section ("startup")))
void main(void) { void main(void) {
/* pin direction */ /* pin direction */
reg32(GPIO_PAD_DIR0) = LED; *GPIO_PAD_DIR0 = LED;
/* timer setup */ /* timer setup */
/* CTRL */ /* CTRL */
@ -28,28 +22,28 @@ void main(void) {
#define CO_INIT 0 /* other counters cannot force a re-initialization of this counter */ #define CO_INIT 0 /* other counters cannot force a re-initialization of this counter */
#define OUT_MODE 0 /* OFLAG is asserted while counter is active */ #define OUT_MODE 0 /* OFLAG is asserted while counter is active */
reg16(TMR_ENBL) = 0; /* tmrs reset to enabled */ *TMR_ENBL = 0; /* tmrs reset to enabled */
reg16(TMR0_SCTRL) = 0; *TMR0_SCTRL = 0;
reg16(TMR0_LOAD) = 0; /* reload to zero */ *TMR0_LOAD = 0; /* reload to zero */
reg16(TMR0_COMP_UP) = 18750; /* trigger a reload at the end */ *TMR0_COMP_UP = 18750; /* trigger a reload at the end */
reg16(TMR0_CMPLD1) = 18750; /* compare 1 triggered reload level, 10HZ maybe? */ *TMR0_CMPLD1 = 18750; /* compare 1 triggered reload level, 10HZ maybe? */
reg16(TMR0_CNTR) = 0; /* reset count register */ *TMR0_CNTR = 0; /* reset count register */
reg16(TMR0_CTRL) = (COUNT_MODE<<13) | (PRIME_SRC<<9) | (SEC_SRC<<7) | (ONCE<<6) | (LEN<<5) | (DIR<<4) | (CO_INIT<<3) | (OUT_MODE); *TMR0_CTRL = (COUNT_MODE<<13) | (PRIME_SRC<<9) | (SEC_SRC<<7) | (ONCE<<6) | (LEN<<5) | (DIR<<4) | (CO_INIT<<3) | (OUT_MODE);
reg16(TMR_ENBL) = 0xf; /* enable all the timers --- why not? */ *TMR_ENBL = 0xf; /* enable all the timers --- why not? */
while(1) { while(1) {
/* blink on */ /* blink on */
reg32(GPIO_DATA0) = LED; *GPIO_DATA0 = LED;
while((reg16(TMR0_SCTRL)>>15) == 0) { continue; } while((*TMR0_SCTRL >> 15) == 0) { continue; }
reg16(TMR0_SCTRL) = 0; /*clear bit 15, and all the others --- should be ok, but clearly not "the right thing to do" */ *TMR0_SCTRL = 0; /*clear bit 15, and all the others --- should be ok, but clearly not "the right thing to do" */
/* blink off */ /* blink off */
reg32(GPIO_DATA0) = 0x00000000; *GPIO_DATA0 = 0x00000000;
while((reg16(TMR0_SCTRL)>>15) == 0) { continue; } while((*TMR0_SCTRL >> 15) == 0) { continue; }
reg16(TMR0_SCTRL) = 0; /*clear bit 15, and all the others --- should be ok, but clearly not "the right thing to do" */ *TMR0_SCTRL = 0; /*clear bit 15, and all the others --- should be ok, but clearly not "the right thing to do" */
}; };
} }