update sd card code

This commit is contained in:
2025-03-25 16:26:31 -05:00
parent beb7f0bfb9
commit 7e00a6d950
4 changed files with 268 additions and 181 deletions
+1 -1
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@@ -1,7 +1,7 @@
#ifndef CHAR_LCD_H
#define CHAR_LCD_H
#include "i2c_lcd_pcf8574.h"
#include "./i2c_lcd_pcf8574.h"
#include <esp_log.h>
#define CHAR_LCD_I2C_NUM I2C_NUM_0
+26 -34
View File
@@ -6,48 +6,40 @@ static const char* mount_point = MOUNT_POINT;
static const char* TAG = "sd";
void init_sd() {
esp_err_t ret;
// Options for mounting the filesystem.
// If format_if_mount_failed is set to true, SD card will be partitioned and
// formatted in case when mounting fails.
esp_vfs_fat_sdmmc_mount_config_t mount_config = {
.format_if_mount_failed = true,
.max_files = 5,
.allocation_unit_size = 16 * 1024,
.disk_status_check_enable = false,
};
ESP_LOGI(TAG, "Initializing SD card");
// Use settings defined above to initialize SD card and mount FAT filesystem.
// Note: esp_vfs_fat_sdmmc/sdspi_mount is all-in-one convenience functions.
// Please check its source code and implement error recovery when developing
// production applications.
esp_err_t ret;
esp_vfs_fat_sdmmc_mount_config_t mount_config = {
.format_if_mount_failed = false,
.max_files = 8,
.allocation_unit_size = 16 * 1024,
.disk_status_check_enable = true,
.use_one_fat = false,
};
ESP_LOGI(TAG, "Using SDMMC peripheral");
sdmmc_host_t host = SDMMC_HOST_DEFAULT();
// This initializes the slot without card detect (CD) and write protect (WP) signals.
// Modify slot_config.gpio_cd and slot_config.gpio_wp if your board has these signals.
sdmmc_slot_config_t slot_config = SDMMC_SLOT_CONFIG_DEFAULT();
// Set bus width to use:
slot_config.width = 4;
// On chips where the GPIOs used for SD card can be configured, set them in
// the slot_config structure:
slot_config.clk = SD_PIN_CLK;
slot_config.cmd = SD_PIN_CMD;
slot_config.d0 = SD_PIN_D0;
slot_config.d1 = SD_PIN_D1;
slot_config.d2 = SD_PIN_D2;
slot_config.d3 = SD_PIN_D3;
// Enable internal pullups on enabled pins. The internal pullups
// are insufficient however, please make sure 10k external pullups are
// connected on the bus. This is for debug / example purpose only.
slot_config.flags |= SDMMC_SLOT_FLAG_INTERNAL_PULLUP;
sdmmc_slot_config_t slot_config = {
.clk = SD_PIN_CLK,
.cmd = SD_PIN_CMD,
.d0 = SD_PIN_D0,
.d1 = SD_PIN_D1,
.d2 = SD_PIN_D2,
.d3 = SD_PIN_D3,
.d4 = GPIO_NUM_NC,
.d5 = GPIO_NUM_NC,
.d6 = GPIO_NUM_NC,
.d7 = GPIO_NUM_NC,
.cd = GPIO_NUM_NC,
.wp = GPIO_NUM_NC,
.width = 4,
.flags = 0
// .flags = SDMMC_SLOT_FLAG_INTERNAL_PULLUP
};
ESP_LOGI(TAG, "Mounting filesystem");
ret = esp_vfs_fat_sdmmc_mount(mount_point, &host, &slot_config, &mount_config, &card);