Closed
Description
Description of defect
DISCO-BL475E-IOT01A device is unable to exit from deep sleep.
I wrote a simple code to check power modes of devices and their power consumption. Everything works fine except when the device enters deep sleep.
Here is the sample code:
DigitalOut led(LED1);
int main() {
//sleep_manager_lock_deep_sleep();
printf("turning on\n");
printf("System clock is %ld\n", SystemCoreClock);
while (1) {
printf("\n\ninit\n");
// blink the LED
sleep_manager_lock_deep_sleep();
led=1;
ThisThread::sleep_for(2s);
led=0;
sleep_manager_unlock_deep_sleep();
printf("\n\nrun\n");
time_t start=time(NULL);
uint64_t i=0;
while((time(NULL)-start)<2) {
i++;
}
printf("counter: %llu\n", i);
printf("\n\nsleep\n");
sleep_manager_lock_deep_sleep();
ThisThread::sleep_for(2s);
sleep_manager_unlock_deep_sleep();
printf("\n\ndeep sleep\n");
ThisThread::sleep_for(2s);
}
return 0;
}the mbed_app.json I am using is:
{
"target_overrides": {
"*": {
"platform.stdio-baud-rate": 115200,
"platform.default-serial-baud-rate": 115200,
},
"DISCO_L475VG_IOT01A": {
"target.clock_source": "USE_PLL_HSI"
}
}
}Target(s) affected by this defect ?
DISCO-BL475E-IOT01A
Toolchain(s) (name and version) displaying this defect ?
GCC_ARM
What version of Mbed-os are you using (tag or sha) ?
What version(s) of tools are you using. List all that apply (E.g. mbed-cli)
mbed-cli 1.10.4
arm-none-eabi-g++ (GNU Arm Embedded Toolchain 9-2020-q2-update) 9.3.1 20200408 (release)