mhu/reflow-oven-control-sw
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Mario Hüttel
2021-05-22 12:44:43 +02:00
parent 0b1ce8b614
commit 4ed2203b35
4 changed files with 106 additions and 14 deletions
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14
stm-firmware/include/reflow-controller/settings/settings-sd-card.h
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@@ -24,6 +24,13 @@
#include <stdbool.h>
#include <reflow-controller/settings/settings.h>
/**
* @brief Save the calibration to the SD card
* @param sens_deviation Sensitivity deviation from nomila sensitivity (1)
* @param offset Offset
* @param active Calibration is active. If false, the calibration will be deleted from SD card
* @return 0 if successful
*/
int sd_card_settings_save_calibration(float sens_deviation, float offset, bool active);
/**
@@ -34,6 +41,13 @@ int sd_card_settings_save_calibration(float sens_deviation, float offset, bool a
*/
int sd_card_settings_try_load_calibration(float *sens_deviation, float *offset);
/**
* @brief Load the PID parameters from @ref SETTINGS_PID_PARAMETER_FILE
* @param settings The PID settings
* @return Load result.
* @note This function is currently not used for the temperature profiles. They implement the PID parameters directy
* inside the profile
*/
enum settings_load_result sd_card_settings_load_pid_oven_parameters(struct oven_pid_settings *settings);
#endif /* __SETTINGS_SETTINGS_SD_CARD_H__ */

61
stm-firmware/include/reflow-controller/settings/settings.h
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@@ -24,20 +24,26 @@
#include <stdbool.h>
/**
* @brief Settings for the PID controller that are stored in the config file
*/
struct oven_pid_settings {
float kd;
float kp;
float ki;
float kd_tau;
float t_sample;
float max_integral;
float kd; /**< @brief Derivate term */
float kp; /**< @brief Proportional term */
float ki; /**< @brief Integral term */
float kd_tau; /**< @brief Time constant of the derivate term's low pass filter */
float t_sample; /**< @brief Sampling time in seconds. @warning The loading function expects the file to hold a ms value */
float max_integral; /**< @brief Maximum value of the intgral term */
};
/**
* @brief Results of a setting loading
*/
enum settings_load_result {
SETT_LOAD_SUCCESS = 0,
SETT_LOAD_FILE_NOT_FOUND,
SETT_LOAD_ERR,
SETT_LOAD_DISK_ERR
SETT_LOAD_SUCCESS = 0, /**< @brief Setting loaded successfully */
SETT_LOAD_FILE_NOT_FOUND, /**< @brief File not found. This is only used by Settings on the SD card */
SETT_LOAD_ERR, /**< @brief Generic loading error */
SETT_LOAD_DISK_ERR, /**< @brief Disk access failure during loading */
};
#define SETTINGS_PID_PARAMETER_FILE "pid.conf"
@@ -50,14 +56,49 @@ enum settings_load_result {
*/
int settings_save_calibration(float sens_deviation, float offset, bool active);
/**
* @brief Load the calibration
*
* If an EEPROM is present, it is first tried to be retrieved from EEPROM.
* If there is no EEPROM or there is no valid data inside, it is tried to be loaded from SD card.
*
* @param sens_dev Sensiotivity deviation
* @param offset Offset
* @return 0 if successful and calibration valid
*/
int settings_load_calibration(float *sens_dev, float *offset);
/**
* @brief Load PID overn parameters from file on SD card. This function is not implemented for EEPROM.
* @param settings settings
* @return Load result
*/
enum settings_load_result settings_load_pid_oven_parameters(struct oven_pid_settings *settings);
/**
* @brief read the configured overtemperature limit
* @param[out] over_temp_limit Overtemperature limit in degrees Celsius
* @return Load result
*/
enum settings_load_result settings_load_overtemp_limit(float *over_temp_limit);
/**
* @brief Save the overtemperature limit
* @param over_temp_limit Limit in degrees Celsius
* @param active Overtemperature limit active. If false: The config is delted and the controller uses its default limit
* @return 0 if successful
*/
int settings_save_overtemp_limit(float over_temp_limit, bool active);
/**
* @brief Setup the settings module
*
* This function has to be called before performing any settings operations.
* It checks if an EEPTROM is connected and sets the appropriate settings storage in this case.
*
* EEPROM storage will only be available for HW versions > 1.3. Some functions require an EEPROM because the counterpart
* on the SD card is not defined. These functions will fail without an EEPROM.
*/
void settings_setup(void);
#endif /* __SETTINGS_SETTINGS_H__ */

42
stm-firmware/include/reflow-controller/settings/spi-eeprom.h
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@@ -24,19 +24,59 @@
#include <stdint.h>
#include <stdbool.h>
/**
* @brief Initialize the SPI for the eeprom.
* @return 0 if succesful
*/
int spi_eeprom_init();
/**
* @brief Uninitialize the SPI EEPROM
*/
void spi_eeprom_deinit();
/**
* @brief Read from SPI EEPROM
* @param addr address to read from
* @param rx_buff buffer to write data to
* @param count Amount of bytes to read
* @return 0 if successful
*/
int spi_eeprom_read(uint32_t addr, uint8_t *rx_buff, uint32_t count);
/**
* @brief Check if the EEPROM is currently performing a write and therefore cannot serve other requests
* @return true: Write in Progress, false: No write active
*/
bool spi_eeprom_write_in_progress(void);
/**
* @brief Write data to the EEPROM
* @param addr Address to write to
* @param data Data to write
* @param count Amount of bytes to write
* @return 0 if successful
* @note The page handling of the EEPROM is done internally. When using this function there is no need to worry about
* the 16 byte page boundaries of the EEPROM
*/
int spi_eeprom_write(uint32_t addr, const uint8_t *data, uint32_t count);
/**
* @brief Read the status register of the EEPROM
* @return status register
*/
uint8_t spi_eeprom_read_status_reg(void);
/**
* @brief Check if an EEPROM is connected to the SPI.
*
* This is done by trying to set the write enable latch in the status register and reading it back.
* After it has been set, it is immediately reset.
*
* If it can't be read back, no EEPROM is connected
*
* @return true: EEPROM is connected, false: No (compatible) EEPROM found
*/
bool spi_eeprom_check_connected(void);
#endif /* __SETTINGS_SPI_EEPROM_H__ */

3
stm-firmware/updater/ram-code/startup.c
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@@ -274,15 +274,12 @@ void Reset_Handler()
*/
CPACR |= (0xF << 20);
/* Fill bss with zero */
__fill_zero(&__ld_sbss, &__ld_ebss);
/* Reset the stack pointer to top of stack. SP is not required to be inside the clobber list! */
__asm__ __volatile__ ("mov sp, %0\n\t" :: "r"(&__ld_top_of_stack) :);
ram_code_main();
/* Catch return from main() */