Guru Meditation Error: Core 0 panic'ed (LoadProhibited). setup(): CONFIG_DISABLE_HAL_LOCKS configured getConfigurationDescriptor(): descriptor length: 32 Try a 1 second delay delay before turning the card off. before the directory and FAT data had been written do the card by the close () command. Rst:0x1 (POWERON),boot:0x8 (SPI_FAST_FLASH_BOOT)Ĭalculated: 8dce998efc3eb6dc43f3799a489dbcfbd5ada9828beadf71017c05c4a8d32bc3Įxpected: ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff The solution is simple, you must flush () the content before closing the file: This will ensure the content is written to the SD card. NULL, /* Parameter passed as input of the task */ If ( pdPASS != xTaskCreate( testTask, /* Task function. #define SD_CONFIG SdSpiConfig(SS, SHARED_SPI, SPI_CLOCK) The sync() call ends the SPI transaction. Your example will run on V2.0.1 if I put this line SPI.beginTransaction(SPISettings(16000000, MSBFIRST, SPI_MODE0)) Also after modifying the bench example to output to the VGA library, it turns out that setting SPIMRWDRBT is slower than disabling DMA (define USESAM3XDMAC 0) when using both libraries together. 0) //Core where task should run, 0=FreeRTOS, 1=Arduinoġ) //Core where task should run, 0=FreeRTOS, 1=Arduino To drive read, I use one DMA channel to send a stream of 0XFF bytes to the SPI controller. I have one puzzle, sometimes a DMA read hangs at 42 MHz. If (mainFile.open(mainFileName, O_RDWR | O_CREAT | O_TRUNC) = true) The standard SPI library trades speed for features which is probably a good thing. Manufacturer ID: 0XFE OEM ID: 42 Product: SD16G. Im using the SdFat.h library on a STM32 and I can successfully create a file in the root directory using SD.open ('test.txt', FILEWRITE) but my code fails to create SD.open ('DATA/datatest.txt', FILEWRITE) in a directory. Card type: SDXC sdSpecVer: 6.00 HighSpeedMode: true. type any character to start init time: 83 ms. Assuming the SD chip select pin is: 10 Edit SDCSPIN to change the SD chip select pin. sd.begin(SdSpiConfig(pin_microSD_CS, SHARED_SPI, SD_SCK_MHZ(16))) //Works Edit DISABLECSPIN to disable an SPI device. Sd.begin(SdSpiConfig(pin_microSD_CS, DEDICATED_SPI, SD_SCK_MHZ(16))) //Fails Const uint8_t writeTaskPriority = 0 //3 being the highest, and 0 being the lowest
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