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Re #3340: Cleanup

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Re #3340: Software reboot tested and working on Horus
This commit is contained in:
Damjan Adamic
2016-03-07 20:05:12 +01:00
parent 4a6a20a2aa
commit 1147db45a4
3 changed files with 34 additions and 2 deletions
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radio/src/targets/horus/pwr_driver.cpp
+28
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@@ -85,3 +85,31 @@ uint32_t pwrPressed()
{
return GPIO_ReadInputDataBit(PWR_GPIO, PWR_SWITCH_GPIO_PIN) == Bit_RESET;
}
void pwrResetHandler()
{
RCC->AHB1ENR |= RCC_AHB1ENR_GPIOJEN;
// these two NOPs are needed (see STM32F errata sheet) before the peripheral
// register can be written after the peripheral clock was enabled
__ASM volatile ("nop");
__ASM volatile ("nop");
// Turn soft power ON now, but only if we got started because of the watchdog
// or software reset. If the radio was started by user pressing the power button
// then that button is providing power and we don't need to enable it here.
//
// If we were to turn it on here indiscriminately, then the radio can go into the
// power on/off loop after being powered off by the user. (issue #2790)
if (WAS_RESET_BY_WATCHDOG_OR_SOFTWARE()) {
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = PWR_ON_GPIO_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(PWR_GPIO, &GPIO_InitStructure);
pwrOn();
}
}