cc2640standby模式怎么正确进入

我关了广播和定时器还是有几个uA的跳变电流

Susan Yang：

您可以参考TI的例程，如SimpleBLEPeripheral。若是没有任何任务需要处理发生，TI-RTOS会把设备置于待机状态。当设备需要广播时，它会自动唤醒

您可以参考appBLE.cfg。当CPU处于IDLE状态时，会使用standbyPolicy。 

/* Idle CPU when threads blocked waiting for an interrupt */Power.idle = true; Power.policyFunc = Power.standbyPolicy;

Alvin Chen：

Hi

这是一个简单的demo，在实际使用在建议您用信号量来操作。

如果是使用semphare_pend将当前任务挂起使系统进入standby的，则当其他地方（比如中断处理中）post了这个信号量，系统会退出standby，当前task继续执行semphare_pend之后的语句。在standby是无法执行任何程序的。

/** Copyright (c) 2016-2017, Texas Instruments Incorporated* All rights reserved.** 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 Texas Instruments Incorporated 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 THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER 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.*//**======== pinStandby.c ========*/
#include <unistd.h>/* Driver Header files */
#include <ti/drivers/PIN.h>
#include <ti/drivers/pin/PINCC26XX.h>/* Example/Board Header files */
#include "Board.h"/* Led pin table */
PIN_Config LedPinTable[] =
{Board_PIN_LED0| PIN_GPIO_OUTPUT_EN | PIN_GPIO_LOW | PIN_PUSHPULL | PIN_DRVSTR_MAX, /* LED initially off */Board_PIN_LED1| PIN_GPIO_OUTPUT_EN | PIN_GPIO_LOW | PIN_PUSHPULL | PIN_DRVSTR_MAX, /* LED initially off */PIN_TERMINATE/* Terminate list */
};/**======== mainThread ========*/
void *mainThread(void *arg0)
{PIN_StatepinState;PIN_HandlehPin;uint_tcurrentOutputVal;uint32_tstandbyDuration = 5;/* Shut down external flash on LaunchPads. It is powered on by default* but can be shut down through SPI*/#ifdef Board_shutDownExtFlashBoard_shutDownExtFlash();#endif/* Allocate LED pins */hPin = PIN_open(&pinState, LedPinTable);/** Repeatedly sleeps for a duration, to allow repeated entry/exit* from standby. The LED states are toggled on each iteration*/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);}
}

Jsees Qian：

回复 Susan Yang:

我用例程进低功耗和我加了传感器程序进低功耗都有这个毛病，我按照手册近低功耗的办法，关闭射频广播和所有定时任务定时器，再进入低功耗的时候还是有几个uA的跳变电流，周期在几秒钟内从0.1uA跳到8uA左右。是否与io口漏电流有关如果是该怎么操作

Butterfly：

回复 Jsees Qian:

你抓一下电流波形和VDDR电压对照一下，可能是给VDDR充电，参考SWRA478A文档5.3.2章节

如果是持续的话，应该是其他地方在耗电

Jsees Qian：

回复 Butterfly:

你这个文档我找不到能发给我吗

HG：

回复 Jsees Qian:

现在更新到C版本了，到如下链接

http://www.ti.com/lit/an/swra478c/swra478c.pdf

下载

Jsees Qian：

回复 Butterfly:

主要是电流周期性变化的会跟什么有关