CC1310 standby模式功耗问题

只看该作者 · 2017-6-8 21:55

本帖最后由 fuyuqingfeng 于 2017-6-13 16:56 编辑

1、请教下 CC1310基于TI_RTOS 如何配置进入standby模式，不是task_sleep() 是系统进入睡眠，以实现超低功耗。资料说TI_RTOS会自动管理电源进入低功耗模式，条件是在所有任务挂起的情况下。这样就不能自主的控制功耗，请问有什么方法能实现在想要进入standby时再进入？
2、使用pinstandby例程时，测试的standby模式下电流为几个uA，手册上说的是0.7uA，怎么配置才能达到手册上的参考值？

3万 · 2017-6-8 22:47

把所有任务挂起就ok了。不然即使你强制进入低功耗状态，也会被任务唤醒的

只看该作者 · 2017-6-8 23:08

dirtwillfly 发表于 2017-6-8 22:47
把所有任务挂起就ok了。不然即使你强制进入低功耗状态，也会被任务唤醒的 ...

有没有例程代码看下呢？我刚接触这个芯片和TI的rtos 很多都不太懂

只看该作者 · 2017-6-8 23:12

fuyuqingfeng 发表于 2017-6-8 23:08
有没有例程代码看下呢？我刚接触这个芯片和TI的rtos 很多都不太懂

这是官方例程pinstandby，它只是在线程里调用sleep（）

int main(void)
{
pthread_t          thread;
pthread_attr_t    pAttrs;
struct sched_param  priParam;
int                retc;
int                detachState;

/* Call driver init functions */
Board_initGeneral();

/* Set priority and stack size attributes */
pthread_attr_init(&pAttrs);
priParam.sched_priority = 1;

detachState = PTHREAD_CREATE_DETACHED;
retc = pthread_attr_setdetachstate(&pAttrs, detachState);
if (retc != 0) {
      /* pthread_attr_setdetachstate() failed */
      while (1);
}

pthread_attr_setschedparam(&pAttrs, &priParam);

retc |= pthread_attr_setstacksize(&pAttrs, THREADSTACKSIZE);
if (retc != 0) {
      /* pthread_attr_setstacksize() failed */
      while (1);
}

retc = pthread_create(&thread, &pAttrs, mainThread, NULL);
if (retc != 0) {
      /* pthread_create() failed */
      while (1);
}

BIOS_start();

return (0);
}

void *threadFxn0(void *arg0)
{
PIN_State pinState;
PIN_Handle  hPin;
uint_t    currentOutputVal;
uint32_t standbyDuration = 5;

/* Allocate LED pins */
hPin = PIN_open(&pinState, LedPinTable);

/* Loop forever */
while(1) {
      /* Sleep, to let the power policy transition the device to standby */
      sleep(standbyDuration);

      /* Read current output value for all pins */
      currentOutputVal =  PIN_getPortOutputValue(hPin);

      /* Toggle the LEDs, configuring all LEDs at once */
      PIN_setPortOutputValue(hPin, ~currentOutputVal);
}
}

/*
*  ======== mainThread ========
*/
void *mainThread(void *arg0)
{
pthread_t          thread0;
pthread_attr_t    pAttrs;
struct sched_param  priParam;
int                retc;
int                detachState;

/* Shut down external flash on LaunchPads. It is powered on by default
   * but can be shut down through SPI
   */
#if defined(CC2650_LAUNCHXL) || defined(CC2640R2_LAUNCHXL) || defined(CC1310_LAUNCHXL) || defined(CC1350_LAUNCHXL)
SPI_init();
bool extFlashOpened = ExtFlash_open();
if (extFlashOpened) {
      ExtFlash_close();
}
#endif

/* Create application thread */
pthread_attr_init(&pAttrs);

detachState = PTHREAD_CREATE_DETACHED;
/* Set priority and stack size attributes */
retc = pthread_attr_setdetachstate(&pAttrs, detachState);
if (retc != 0) {
      /* pthread_attr_setdetachstate() failed */
      while (1);
}

retc |= pthread_attr_setstacksize(&pAttrs, THREADSTACKSIZE);
if (retc != 0) {
      /* pthread_attr_setstacksize() failed */
      while (1);
}

/* Create threadFxn0 thread */
priParam.sched_priority = 1;
pthread_attr_setschedparam(&pAttrs, &priParam);

retc = pthread_create(&thread0, &pAttrs, threadFxn0, NULL);
if (retc != 0) {
      /* pthread_create() failed */
      while (1);
}

return (NULL);
}