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/**
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* TODO file description |
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*/ |
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#include "app_safety.h" |
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#include "app_heater.h" |
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#include "snprintf.h" |
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#include "stm32f1xx_ll_iwdg.h" |
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#include "stm32f1xx_ll_gpio.h" |
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#include "main.h" |
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#define HB_FLAG_TEMP_NORMAL (1 << 0) |
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#define HB_FLAG_ADC_SAMPLING (1 << 1) |
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#define HB_FLAG_TEMP_CALCULATION (1 << 2) |
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#define HB_FLAG_REG_LOOP (1 << 3) |
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#define HB_FLAG_DISPLAY_UPDATING (1 << 4) |
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#define HB_FLAG_SOC_TEMP_OK (1 << 5) |
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#define HB_FLAG_ALL (0b111111) |
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static volatile uint32_t heartbeat_flags = 0; |
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void app_safety_pass_temp_normal() { |
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heartbeat_flags |= HB_FLAG_TEMP_NORMAL; |
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} |
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void app_safety_pass_adc_sampling() { |
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heartbeat_flags |= HB_FLAG_ADC_SAMPLING; |
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} |
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void app_safety_pass_temp_calculation() { |
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heartbeat_flags |= HB_FLAG_TEMP_CALCULATION; |
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} |
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void app_safety_pass_reg_loop_running() { |
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heartbeat_flags |= HB_FLAG_REG_LOOP; |
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} |
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void app_safety_pass_display_updating() { |
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heartbeat_flags |= HB_FLAG_DISPLAY_UPDATING; |
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} |
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void app_safety_pass_soc_temp_ok() { |
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heartbeat_flags |= HB_FLAG_SOC_TEMP_OK; |
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} |
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void app_safety_poll() { |
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if ((heartbeat_flags & HB_FLAG_ALL) == HB_FLAG_ALL) { |
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LL_IWDG_ReloadCounter(IWDG); |
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LL_GPIO_TogglePin(LED_GPIO_Port, LED_Pin); |
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heartbeat_flags = 0; |
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} |
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} |
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// emergency shutdown, this must not block use RTOS since it can be called from fault handlers or interrupt
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void __attribute__((noreturn)) app_emergency_stop() { |
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app_heater_emergency_shutdown(); |
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PUTS("\r\n*** EMERGENCY STOP ***\r\n"); |
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while (1) { |
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// wait for the watchdog to bite
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} |
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} |
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@ -0,0 +1,30 @@ |
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/**
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* TODO file description |
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*/ |
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#ifndef BLUEPILLTROUBA_APP_SAFETY_H |
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#define BLUEPILLTROUBA_APP_SAFETY_H |
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/**
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* Check the pass flags. If all are set, reset the WD and clear flags. |
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* |
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* This effectively makes the WD bite when either of the subsystems fails. |
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*/ |
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void app_safety_poll(); |
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void app_emergency_stop() |
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__attribute__((noreturn)); |
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void app_safety_pass_temp_normal(); |
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void app_safety_pass_adc_sampling(); |
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void app_safety_pass_temp_calculation(); |
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void app_safety_pass_reg_loop_running(); |
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void app_safety_pass_display_updating(); |
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void app_safety_pass_soc_temp_ok(); |
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#endif //BLUEPILLTROUBA_APP_SAFETY_H
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