mhu/reflow-oven-control-sw
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Fixx style problems and design errors in main.c

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This commit is contained in:
Mario Hüttel 2020-06-14 23:22:35 +02:00
parent 485b887b54
commit 62a3e06baa
3 changed files with 78 additions and 59 deletions
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6
stm-firmware/include/reflow-controller/safety-adc.h
View File

@ -39,6 +39,12 @@ enum safety_adc_check_result {
SAFETY_ADC_INTERNAL_ERROR = (1U<<4),
};
extern enum safety_adc_check_result global_safety_adc_status;
enum safety_adc_check_result safety_adc_get_errors();
void safety_adc_clear_errors(void);
void safety_adc_init();
void safety_adc_deinit();

99
stm-firmware/main.c
View File

@ -36,18 +36,18 @@
#include <reflow-controller/shell.h>
#include <reflow-controller/digio.h>
#include "fatfs/shimatta_sdio_driver/shimatta_sdio.h"
#include <reflow-controller/temp-converter.h>
#include <stm-periph/stm32-gpio-macros.h>
#include <stm-periph/clock-enable-manager.h>
#include <stm-periph/uart.h>
#include <reflow-controller/shell-uart-config.h>
#include <helper-macros/helper-macros.h>
#include <reflow-controller/oven-driver.h>
#include <reflow-controller/safety-adc.h>
#include <fatfs/ff.h>
#include <reflow-controller/reflow-menu.h>
static void setup_nvic_priorities()
bool global_error_state;
static void setup_nvic_priorities(void)
{
/* No sub priorities */
NVIC_SetPriorityGrouping(2);
@ -61,7 +61,7 @@ static void setup_nvic_priorities()
FATFS fs;
FATFS * const fs_ptr = &fs;
static inline void uart_gpio_config()
static inline void uart_gpio_config(void)
{
/*
* In case the application is build in debug mode, use the TX/RX Pins on the debug header
@ -121,30 +121,16 @@ static bool mount_sd_card_if_avail(bool mounted)
if (!sdio_check_inserted() && !mounted) {
res = f_mount(fs_ptr, "0:/", 1);
if (res == FR_OK) {
if (res == FR_OK)
return true;
} else {
else
return false;
}
}
return mounted;
}
static inline int32_t handle_pid_controller(struct pid_controller *pid, float target_temperature,
float current_temperature)
{
int32_t pid_out;
pid_out = (int32_t)pid_sample(pid, target_temperature - current_temperature);
/* Blink green LED */
led_set(1, !led_get(1));
return pid_out;
}
static void setup_unused_pins()
static void setup_unused_pins(void)
{
int i;
@ -154,7 +140,7 @@ static void setup_unused_pins()
GPIOE->PUPDR |= PULLDOWN(i);
}
static inline void setup_system()
static inline void setup_system(void)
{
setup_nvic_priorities();
systick_setup();
@ -185,10 +171,11 @@ static void handle_shell_uart_input(shellmatta_handle_t shell_handle)
shell_handle_input(shell_handle, uart_input, uart_input_len);
}
extern char _sccmram;
extern char _eccmram;
static void zero_ccm_ram(void)
{
/* These extern variables are placed in the linker script */
extern char _sccmram;
extern char _eccmram;
uint32_t len;
uint32_t i;
uint32_t *ptr = (uint32_t *)&_sccmram;
@ -198,10 +185,31 @@ static void zero_ccm_ram(void)
ptr[i] = 0UL;
}
volatile bool error_state = false;
volatile enum safety_adc_check_result safety_adc_status = SAFETY_ADC_CHECK_OK;
/**
* @brief This function sets the appropriate error flags in the oven PID controller
* depending on the Safety ADC measurements.
* The PID controller's error flags have to be cleared via the GUI by either starting a new RUN or explicitly
* ack'ing these errors.
*/
static void propagate_safety_adc_error_to_oven_pid(void)
{
enum safety_adc_check_result safety_adc_result;
int main()
safety_adc_result = safety_adc_get_errors();
if (safety_adc_result & SAFETY_ADC_CHECK_TEMP_LOW ||
safety_adc_result & SAFETY_ADC_CHECK_TEMP_HIGH)
oven_pid_report_error(OVEN_PID_ERR_OVERTEMP);
if (safety_adc_result & SAFETY_ADC_CHECK_VREF_LOW ||
safety_adc_result & SAFETY_ADC_CHECK_VREF_HIGH)
oven_pid_report_error(OVEN_PID_ERR_VREF_TOL);
if (safety_adc_result & SAFETY_ADC_INTERNAL_ERROR)
oven_pid_report_error(0);
}
int main(void)
{
bool sd_card_mounted = false;
shellmatta_handle_t shell_handle;
@ -213,6 +221,8 @@ int main()
zero_ccm_ram();
setup_system();
global_error_state = false;
shell_handle = shell_init(write_shell_callback);
shell_print_motd(shell_handle);
@ -222,41 +232,25 @@ int main()
pid_status = oven_pid_get_status();
if (systick_ticks_have_passed(quarter_sec_timestamp, 250)) {
safety_adc_status = handle_safety_adc();
quarter_sec_timestamp = systick_get_global_tick();
if (safety_adc_status & SAFETY_ADC_CHECK_TEMP_LOW ||
safety_adc_status & SAFETY_ADC_CHECK_TEMP_HIGH) {
oven_pid_report_error(OVEN_PID_ERR_OVERTEMP);
}
(void)handle_safety_adc();
propagate_safety_adc_error_to_oven_pid();
if (safety_adc_status & SAFETY_ADC_CHECK_VREF_LOW ||
safety_adc_status & SAFETY_ADC_CHECK_VREF_HIGH) {
oven_pid_report_error(OVEN_PID_ERR_VREF_TOL);
}
if (safety_adc_status & SAFETY_ADC_INTERNAL_ERROR) {
oven_pid_report_error(0);
}
if (error_state) {
if (global_error_state)
led_set(0, !led_get(0));
} else {
else
led_set(0, 0);
}
}
pt1000_status = adc_pt1000_check_error();
error_state = pid_status->aborted || !!safety_adc_status || !!pt1000_status;
global_error_state = pid_status->aborted || !!safety_adc_get_errors() || !!pt1000_status;
menu_wait_request = reflow_menu_handle();
/* Deactivate oven output in case of error! */
if (!pid_status->active || pid_status->aborted || error_state) {
oven_pid_stop();
if (!pid_status->active || pid_status->aborted || global_error_state)
oven_driver_set_power(0U);
}
handle_shell_uart_input(shell_handle);
@ -265,6 +259,7 @@ int main()
}
return 0;
}
void sdio_wait_ms(uint32_t ms)
@ -272,12 +267,12 @@ void sdio_wait_ms(uint32_t ms)
systick_wait_ms(ms);
}
void DMA2_Stream7_IRQHandler()
void DMA2_Stream7_IRQHandler(void)
{
uint32_t hisr = DMA2->HISR;
DMA2->HIFCR = hisr;
if (hisr & DMA_HISR_TCIF7) {
if (hisr & DMA_HISR_TCIF7)
uart_tx_dma_complete_int_callback(&shell_uart);
}
}

30
stm-firmware/safety-adc.c
View File

@ -23,10 +23,24 @@
#include <helper-macros/helper-macros.h>
#include <stm-periph/clock-enable-manager.h>
enum safety_adc_check_result global_safety_adc_status;
enum safety_adc_check_result safety_adc_get_errors()
{
return global_safety_adc_status;
}
void safety_adc_clear_errors(void)
{
global_safety_adc_status = SAFETY_ADC_CHECK_OK;
}
void safety_adc_init()
{
rcc_manager_enable_clock(&RCC->APB2ENR, BITMASK_TO_BITNO(SAFETY_ADC_ADC_RCC_MASK));
safety_adc_clear_errors();
/* Enable temperature and VREFINT measurement */
ADC->CCR |= ADC_CCR_TSVREFE;
@ -117,16 +131,17 @@ void safety_adc_trigger_meas(enum safety_adc_meas_channel measurement)
SAFETY_ADC_ADC_PERIPHERAL->CR2 |= ADC_CR2_SWSTART;
}
static volatile uint16_t safety_vref_meas_raw;
static volatile bool safety_vref_valid = false;
static volatile uint16_t safety_temp_meas_raw;
static volatile bool safety_temp_valid = false;
static uint16_t safety_vref_meas_raw;
static bool safety_vref_valid = false;
static uint16_t safety_temp_meas_raw;
static bool safety_temp_valid = false;
static float safety_vref;
static float safety_temp;
enum safety_adc_check_result handle_safety_adc()
{
static enum safety_adc_meas_channel safety_meas_channel = SAFETY_ADC_MEAS_VREF;
enum safety_adc_check_result check_result;
uint16_t result;
int poll_status;
@ -153,10 +168,13 @@ enum safety_adc_check_result handle_safety_adc()
}
if (safety_temp_valid && safety_vref_valid) {
return safety_adc_check_results(safety_vref_meas_raw, safety_temp_meas_raw, &safety_vref, &safety_temp);
check_result = safety_adc_check_results(safety_vref_meas_raw, safety_temp_meas_raw, &safety_vref, &safety_temp);
global_safety_adc_status |= check_result;
} else {
return SAFETY_ADC_CHECK_OK;
check_result = SAFETY_ADC_CHECK_OK;
}
return check_result;
}
float safety_adc_get_temp()