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implemented EEPROM write operation with data overlapped page size margin

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This commit is contained in:
Bogdan Pilyugin 2024-06-20 21:12:52 +02:00
parent 6cb5bc0e9c
commit 9276d4a6c1
1 changed files with 38 additions and 20 deletions
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36
src/EEPROM.c
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@ -26,7 +26,6 @@
#define TAG "EEPROMDriver" #define TAG "EEPROMDriver"
#define I2C_MASTER_TIMEOUT_MS 1000 #define I2C_MASTER_TIMEOUT_MS 1000
#define I2C_MASTER_NUM CONFIG_I2C_HOST /*!< I2C master i2c port number, the number of i2c peripheral interfaces available will depend on the chip */ #define I2C_MASTER_NUM CONFIG_I2C_HOST /*!< I2C master i2c port number, the number of i2c peripheral interfaces available will depend on the chip */
#define I2C_MASTER_SDA_GPIO CONFIG_I2C_SDA_GPIO /*!< I2C master i2c SDA pin*/ #define I2C_MASTER_SDA_GPIO CONFIG_I2C_SDA_GPIO /*!< I2C master i2c SDA pin*/
@ -41,16 +40,17 @@ typedef struct
uint32_t clk_speed; // I2C clock frequency for master mode uint32_t clk_speed; // I2C clock frequency for master mode
} i2c_dev_t; } i2c_dev_t;
i2c_dev_t eepr_24c32 = { i2c_dev_t eepr_24c32 = {
.port = I2C_MASTER_NUM, .port = I2C_MASTER_NUM,
.addr = EEPR24CXX_ADDR >> 1, .addr = EEPR24CXX_ADDR >> 1,
.clk_speed = CONFIG_I2C_CLOCK .clk_speed = CONFIG_I2C_CLOCK
}; };
static esp_err_t i2c_dev_read(const i2c_dev_t *dev, const void *out_data, size_t out_size, void *in_data, size_t in_size) static esp_err_t i2c_dev_read(const i2c_dev_t *dev, const void *out_data, size_t out_size, void *in_data,
size_t in_size)
{ {
if (!dev || !in_data || !in_size) return ESP_ERR_INVALID_ARG; if (!dev || !in_data || !in_size)
return ESP_ERR_INVALID_ARG;
i2c_cmd_handle_t cmd = i2c_cmd_link_create(); i2c_cmd_handle_t cmd = i2c_cmd_link_create();
if (out_data && out_size) if (out_data && out_size)
@ -73,9 +73,11 @@ static esp_err_t i2c_dev_read(const i2c_dev_t *dev, const void *out_data, size_t
return res; return res;
} }
static esp_err_t i2c_dev_write(const i2c_dev_t *dev, const void *out_reg, size_t out_reg_size, const void *out_data, size_t out_size) static esp_err_t i2c_dev_write(const i2c_dev_t *dev, const void *out_reg, size_t out_reg_size, const void *out_data,
size_t out_size)
{ {
if (!dev || !out_data || !out_size) return ESP_ERR_INVALID_ARG; if (!dev || !out_data || !out_size)
return ESP_ERR_INVALID_ARG;
i2c_cmd_handle_t cmd = i2c_cmd_link_create(); i2c_cmd_handle_t cmd = i2c_cmd_link_create();
i2c_master_start(cmd); i2c_master_start(cmd);
@ -100,10 +102,26 @@ esp_err_t eepr_i2c_read(uint16_t addr, uint8_t *data, int length)
return i2c_dev_read(&eepr_24c32, adr, 2, data, length); return i2c_dev_read(&eepr_24c32, adr, 2, data, length);
} }
#define EEPROM_WRITE_PAGE_SIZE 32
#define EEPROM_WRITE_MAX_ATTEMPTS 5
esp_err_t eepr_i2c_write(uint16_t addr, uint8_t *data, int length) esp_err_t eepr_i2c_write(uint16_t addr, uint8_t *data, int length)
{ {
uint8_t adr[] = { (uint8_t)(addr >> 8), (uint8_t)(addr & 0xff) }; int written = 0, attempts = 0;
return i2c_dev_write(&eepr_24c32 , adr, 2, data, length); uint16_t block_addr = addr;
esp_err_t err;
while ((length - written) > 0)
{
int block_len = MIN(length - written, EEPROM_WRITE_PAGE_SIZE);
uint8_t adr[] = { (uint8_t)(block_addr >> 8), (uint8_t)(block_addr & 0xff) };
while ((err = i2c_dev_write(&eepr_24c32, adr, 2, data + written, block_len)) != ESP_OK)
{
if (++attempts >= EEPROM_WRITE_MAX_ATTEMPTS) //Critical error
return err;
vTaskDelay(pdMS_TO_TICKS(5));
}
written += block_len;
block_addr += EEPROM_WRITE_PAGE_SIZE;
}
return ESP_OK;
} }