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more current data with hobby board. 32kHZ mode doesn't seem to use

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much more power than 2kHz.
This commit is contained in:
Mariano Alvira 2009-05-21 17:30:00 -04:00
parent 34c91a6726
commit 0696772202
1 changed files with 31 additions and 29 deletions
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60
tests/sleep.c
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@ -62,27 +62,27 @@ void (*crm_gotosleep)(crmSleepCtrl_t *foo) = 0x0000364d;
__attribute__ ((section ("startup"))) void main(void) { __attribute__ ((section ("startup"))) void main(void) {
crmSleepCtrl_t crmSleepCtrl; crmSleepCtrl_t crmSleepCtrl;
reg32(GPIO_PAD_DIR0) = 0x00000100; // reg32(GPIO_PAD_DIR0) = 0x00000100;
reg32(GPIO_DATA0) = 0x00000100; // reg32(GPIO_DATA0) = 0x00000100;
/* Restore UART regs. to default */ /* Restore UART regs. to default */
/* in case there is still bootloader state leftover */ /* in case there is still bootloader state leftover */
*(volatile uint32_t *)UART1_CON = 0x0000c800; /* mask interrupts, 16 bit sample --- helps explain the baud rate */ // *(volatile uint32_t *)UART1_CON = 0x0000c800; /* mask interrupts, 16 bit sample --- helps explain the baud rate */
/* INC = 767; MOD = 9999 works: 115200 @ 24 MHz 16 bit sample */ /* INC = 767; MOD = 9999 works: 115200 @ 24 MHz 16 bit sample */
#define INC 767 #define INC 767
#define MOD 9999 #define MOD 9999
*(volatile uint32_t *)UART1_BR = INC<<16 | MOD; // *(volatile uint32_t *)UART1_BR = INC<<16 | MOD;
/* see Section 11.5.1.2 Alternate Modes */ /* see Section 11.5.1.2 Alternate Modes */
/* you must enable the peripheral first BEFORE setting the function in GPIO_FUNC_SEL */ /* you must enable the peripheral first BEFORE setting the function in GPIO_FUNC_SEL */
/* From the datasheet: "The peripheral function will control operation of the pad IF */ /* From the datasheet: "The peripheral function will control operation of the pad IF */
/* THE PERIPHERAL IS ENABLED. */ /* THE PERIPHERAL IS ENABLED. */
*(volatile uint32_t *)UART1_CON = 0x00000003; /* enable receive and transmit */ // *(volatile uint32_t *)UART1_CON = 0x00000003; /* enable receive and transmit */
*(volatile uint32_t *)GPIO_FUNC_SEL0 = ( (0x01 << (14*2)) | (0x01 << (15*2)) ); /* set GPIO15-14 to UART (UART1 TX and RX)*/ // *(volatile uint32_t *)GPIO_FUNC_SEL0 = ( (0x01 << (14*2)) | (0x01 << (15*2)) ); /* set GPIO15-14 to UART (UART1 TX and RX)*/
reg32(0x00401ffc) = 0x01234567; reg32(0x00401ffc) = 0x01234567;
reg32(0x00407ffc) = 0xdeadbeef; reg32(0x00407ffc) = 0xdeadbeef;
@ -110,11 +110,11 @@ __attribute__ ((section ("startup"))) void main(void) {
/* disable all pullups */ /* disable all pullups */
/* seems to make a slight difference (2.0uA vs 1.95uA)*/ /* seems to make a slight difference (2.0uA vs 1.95uA)*/
// reg32(GPIO_PAD_PU_EN0) = 0; reg32(GPIO_PAD_PU_EN0) = 0;
// reg32(GPIO_PAD_PU_EN1) = 0; reg32(GPIO_PAD_PU_EN1) = 0;
// reg16(ADC_CONTROL) = 0; /* internal Vref2 */ reg16(ADC_CONTROL) = 0; /* internal Vref2 */
// reg16(CRM_XTAL_CNTL) = 0x052; /* default is 0xf52 */ /* doesn't anything w.r.t. power */ reg16(CRM_XTAL_CNTL) = 0x052; /* default is 0xf52 */ /* doesn't anything w.r.t. power */
#if USE_32KHZ #if USE_32KHZ
/* turn on the 32kHz crystal */ /* turn on the 32kHz crystal */
@ -125,7 +125,6 @@ __attribute__ ((section ("startup"))) void main(void) {
clear_bit(reg32(CRM_RINGOSC_CNTL),0); clear_bit(reg32(CRM_RINGOSC_CNTL),0);
/* enable the 32kHZ crystal */ /* enable the 32kHZ crystal */
set_bit(reg32(CRM_XTAL32_CNTL),0); set_bit(reg32(CRM_XTAL32_CNTL),0);
// reg32(CRM_XTAL_CNTL) = 0;
/* set the XTAL32_EXISTS bit */ /* set the XTAL32_EXISTS bit */
/* the datasheet says to do this after you've check that RTC_COUNT is changing */ /* the datasheet says to do this after you've check that RTC_COUNT is changing */
@ -136,8 +135,6 @@ __attribute__ ((section ("startup"))) void main(void) {
old = reg32(CRM_RTC_COUNT); old = reg32(CRM_RTC_COUNT);
puts("waiting for xtal\n\r"); puts("waiting for xtal\n\r");
while(reg32(CRM_RTC_COUNT) == old) { while(reg32(CRM_RTC_COUNT) == old) {
// put_hex32(reg32(CRM_RTC_COUNT));
// puts("\n\r");
continue; continue;
} }
/* RTC has started up */ /* RTC has started up */
@ -145,34 +142,39 @@ __attribute__ ((section ("startup"))) void main(void) {
set_bit(reg32(CRM_SYS_CNTL),5); set_bit(reg32(CRM_SYS_CNTL),5);
puts("32kHZ xtal started\n\r"); puts("32kHZ xtal started\n\r");
/* while(1) { */
/* put_hex32(reg32(CRM_RTC_COUNT)); */
/* puts("\n\r"); */
/* } */
} }
#endif #endif
/* go to sleep */ /* go to sleep */
// reg32(CRM_WU_CNTL) = 0; /* don't wake up */
// reg32(CRM_WU_CNTL) = 0x1; /* enable wakeup from wakeup timer */
// reg32(CRM_WU_TIMEOUT) = 1875000; /* wake 10 sec later if doze */
// reg32(CRM_WU_TIMEOUT) = 20000; /* wake 10 sec later if hibernate w/2kHz*/
// reg32(CRM_SLEEP_CNTL) = 1; /* hibernate, RAM page 0 only, don't retain state, don't power GPIO */ /* approx. 2.0uA */ // reg32(CRM_WU_CNTL) = 0; /* don't wake up */
// reg32(CRM_SLEEP_CNTL) = 0x41; /* hibernate, RAM page 0 only, retain state, don't power GPIO */ /* approx. 10.0uA */ reg32(CRM_WU_CNTL) = 0x1; /* enable wakeup from wakeup timer */
// reg32(CRM_SLEEP_CNTL) = 0x51; /* hibernate, RAM page 0&1 only, retain state, don't power GPIO */ /* approx. 11.7uA */ // reg32(CRM_WU_TIMEOUT) = 1875000; /* wake 10 sec later if doze */
// reg32(CRM_SLEEP_CNTL) = 0x61; /* hibernate, RAM page 0,1,2 only, retain state, don't power GPIO */ /* approx. 13.9uA */ #if USE_32KHZ
// reg32(CRM_SLEEP_CNTL) = 0x71; /* hibernate, all RAM pages, retain state, don't power GPIO */ /* approx. 16.1uA - possibly with periodic refresh*/ reg32(CRM_WU_TIMEOUT) = 327680*2;
// reg32(CRM_SLEEP_CNTL) = 0xf1; /* hibernate, all RAM pages, retain state, power GPIO */ /* approx. 16.1uA - possibly with periodic refresh*/ #else
reg32(CRM_WU_TIMEOUT) = 20000; /* wake 10 sec later if hibernate w/2kHz*/
#endif
/* hobby board: 2kHz = 11uA; 32kHz = 11uA */
// reg32(CRM_SLEEP_CNTL) = 1; /* hibernate, RAM page 0 only, don't retain state, don't power GPIO */ /* approx. 2kHz = 2.0uA */
/* hobby board: 2kHz = 18uA; 32kHz = 19uA */
// reg32(CRM_SLEEP_CNTL) = 0x41; /* hibernate, RAM page 0 only, retain state, don't power GPIO */ /* approx. 2kHz = 10.0uA */
/* hobby board: 2kHz = 20uA; 32kHz = 21uA */
// reg32(CRM_SLEEP_CNTL) = 0x51; /* hibernate, RAM page 0&1 only, retain state, don't power GPIO */ /* approx. 2kHz = 11.7uA */
/* hobby board: 2kHz = 22uA; 32kHz = 22.5uA */
// reg32(CRM_SLEEP_CNTL) = 0x61; /* hibernate, RAM page 0,1,2 only, retain state, don't power GPIO */ /* approx. 2kHz = 13.9uA */
/* hobby board: 2kHz = 24uA; 32kHz = 25uA */
// reg32(CRM_SLEEP_CNTL) = 0x71; /* hibernate, all RAM pages, retain state, don't power GPIO */ /* approx. 2kHz = 16.1uA */
// reg32(CRM_SLEEP_CNTL) = 0xf1; /* hibernate, all RAM pages, retain state, power GPIO */ /* consumption depends on GPIO hookup */
// reg32(CRM_SLEEP_CNTL) = 2; /* doze , RAM page 0 only, don't retain state, don't power GPIO */ /* approx. 69.2 uA */ // reg32(CRM_SLEEP_CNTL) = 2; /* doze , RAM page 0 only, don't retain state, don't power GPIO */ /* approx. 69.2 uA */
// reg32(CRM_SLEEP_CNTL) = 0x42; /* doze , RAM page 0 only, retain state, don't power GPIO */ /* approx. 77.3uA */ // reg32(CRM_SLEEP_CNTL) = 0x42; /* doze , RAM page 0 only, retain state, don't power GPIO */ /* approx. 77.3uA */
// reg32(CRM_SLEEP_CNTL) = 0x52; /* doze , RAM page 0&1 only, retain state, don't power GPIO */ /* approx. 78.9uA */ // reg32(CRM_SLEEP_CNTL) = 0x52; /* doze , RAM page 0&1 only, retain state, don't power GPIO */ /* approx. 78.9uA */
// reg32(CRM_SLEEP_CNTL) = 0x62; /* doze , RAM page 0,1,2 only, retain state, don't power GPIO */ /* approx. 81.2uA */ // reg32(CRM_SLEEP_CNTL) = 0x62; /* doze , RAM page 0,1,2 only, retain state, don't power GPIO */ /* approx. 81.2uA */
// reg32(CRM_SLEEP_CNTL) = 0x72; /* doze , all RAM pages, retain state, don't power GPIO */ /* approx. 83.4uA - possibly with periodic refresh*/ // reg32(CRM_SLEEP_CNTL) = 0x72; /* doze , all RAM pages, retain state, don't power GPIO */ /* approx. 83.4uA - possibly with periodic refresh*/
// reg32(CRM_SLEEP_CNTL) = 0xf2; /* doze , all RAM pages, retain state, power GPIO */ /* approx. 82.8uA - possibly with periodic refresh*/ // reg32(CRM_SLEEP_CNTL) = 0xf2; /* doze , all RAM pages, retain state, power GPIO */ /* consumption depends on GPIO hookup */
/* crmSleepCtrl.sleepType = 0; */ /* crmSleepCtrl.sleepType = 0; */