SPI通信跟IIC通信一样，通信总线上允许挂载一个主设备和一个或者多个从设备。为了跟从设备进行通信，一...
SPI，Serial Peripheral interface，顾名思义，就是串行外围设备接口，是由原摩托罗拉公司在其MC68HCXX...
正点原子ESP32-S3开发板使用的接口是Micro SD卡接口，卡座带自锁功能，SD SPI主机驱动程序基于SPI Master...
1.error: ‘LV_HOR_RES_MAX’ undeclared 解决方式:在lvgl_helpers.h 中增加如下代码 #define LV_HOR_RES_MAX 320 #define LV_VER_RES_MAX 240 #define SPI_HOST_MAX 3 1. 2. 3. 2.E (384) spi: spi_bus_initialize(762): invalid dma channel, chip only support spi dma channel auto-alloc ...
位于lvgl_esp32_drivers内的lvgl_helpers.c,直接粗暴将这句“assert((0 <= host) && (SPI_HOST_MAX > host))”注释掉就行了 bool lvgl_spi_driver_init(int host, int miso_pin, int mosi_pin, int sclk_pin, int max_transfer_sz, int dma_channel, ...
//.max_transfer_sz = 64, .flags=SPICOMMON_BUSFLAG_MASTER|SPICOMMON_BUSFLAG_QUAD }; ret=spi_bus_initialize(SPI_PORT,&buscfg,dma); spi_device_interface_config_t dev_config={ .command_bits=0, .address_bits=0, .clock_speed_hz=SPI_MASTER_FREQ_80M, ...
spiBusConfig.max_transfer_sz = 64*8; spi_device_interface_config_t spiDeviceConfig; spiDeviceConfig.clock_speed_hz = SPI_MASTER_FREQ_10M; spiDeviceConfig.mode = 0; spiDeviceConfig.spics_io_num = NFC_SPI_CS_PIN; spiDeviceConfig.queue_size = 7; ret = spi_bus_initialize(SPI3_HOST, ...
I (0) cpu_start: Starting scheduler on APP CPU.I (328) spiram: Reserving pool of 64K of ...
sdmmc_card_t *card; esp_vfs_fat_sdmmc_mount_config_t mount_cnf = { .format_if_mount_failed = true, .max_files = 5, .allocation_unit_size = 16 * 1024, }; esp_vfs_fat_sdspi_mount(MOUNT_POINT, &host, &slot_cnf, &mount_cnf, &card); sdmmc_card_print_info(stdout, card); ...
typedef struct SPI_settings_s{ spi_host_device_t host; spi_device_handle_t spi; int dma_chan; spi_device_interface_config_t devcfg; spi_bus_config_t buscfg; }SPI_settings_t; static SPI_settings_t SPI_settings = { .host = SPI2_HOST, ...