sdmmc_card_t* card; // SD / MMC卡信息结构 const char mount_point[] = MOUNT_POINT; // 根目录 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 ...
sdmmc_card_t *card; const char mount_point[] = MOUNT_POINT; ESP_LOGI(TAG, "Initializing SD card"); ESP_LOGI(TAG, "Using SDMMC peripheral"); sdmmc_host_t host = SDMMC_HOST_DEFAULT(); sdmmc_slot_config_t slot_config = SDMMC_SLOT_CONFIG_DEFAULT(); #ifdef CONFIG_EXAMPLE_SDMMC_B...
2,sd_card.h,sd_card.c 这里就是实现sd卡的初始化,具体怎么弄参考前面的博客,然后里面还有一些esp32操作sd卡的函数,跟前面博客中读取sd卡差不多,应该很好理解,我也是复制的别人的。 #include"sd_card.h"boolSdCard::init() { SPIClass* sd_spi =newSPIClass(HSPI);//another SPIif(!SD.begin(15, *...
write_sdmmc(gps_data_t gps_data) { char file_name[9] = {0}; char record[80] = {0}; uint8_t i = 0; uint8_t offset = 0; if (sdmmc_status == 0) { uint8_t init = card_mount(); // 初始化并装载TF卡 if (init == 0) { printf("TF 卡初始化成功! \n"); sdmmc_...
This example uses SPI peripheral to communicate with SD card. This example code is in the Public Domain (or CC0 licensed, at your option.) Unless required by applicable law or agreed to in writing, this software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR ...
/* SD card and FAT filesystem example. This example uses SPI peripheral to communicate with SD card. This example code is in the Public Domain (or CC0 licensed, at your option.) Unless required by applicable law or agreed to in writing, this ...
Plays mp3, m4a and wav files from SD card via I2S with external hardware. HELIX-mp3 and -aac decoder is included. Works with MAX98357A (3 Watt amplifier with DAC), connected three lines (DOUT, BLCK, LRC) to I2S. For stereo are two MAX98357A necessary. AudioI2S works with UDA1334A ...
ESP32-WROVER based development board with 1.3 inch OLED (GPIO26-SDA, GPIO27-SCL) TP4056+DW06+LM39100 battery charging, 1 A charging/discharging, over-charging and over-discharging protection, LED indicator (red charging, green full), auto-download function, SD card slot, and a control ...
I'm also sure to close the file with file.close() after reading it, so that I can later reopen it without a problem. But whenever I try doing it after calling smartdisplay_init(), the same problem happens. Even when using a exclusive SPI bus for the SD card. This is my board ...
if (!SD.begin(13, SPI, 40000000, "/sd")) { Serial.println("Card Mount Failed"); return; } melvinpmathew commentedon Jul 10, 2017 melvinpmathew I'm trying to get it to work as well, After a few tests with different resistors i get the example it working but its not very stable...