ESP32 Forum

Code: Select all

assertion "ret_trans==trans_desc" failed: file "C:/msys32/home/heged/esp/esp-idf/components/driver/spi_master.c", line 892, function: spi_device_transmit
abort() was cassertion alled at PC 0"ret_transx400d2fbf on ==trans_decore 0

Code: Select all

spi_bus_config_t buscfg={
		.miso_io_num=DW1000_MISO_PIN,
		.mosi_io_num=DW1000_MOSI_PIN,
		.sclk_io_num=DW1000_SCK_PIN,
		.quadwp_io_num=-1,
		.quadhd_io_num=-1,
		.max_transfer_sz=4096	
		};

spi_device_interface_config_t devcfg={
	    .clock_speed_hz = 1*1000*1000,           
		.mode = 0,                              
	    .spics_io_num = DW1000_SS_PIN,              
		.queue_size = 7,                         
		.flags = SPI_DEVICE_HALFDUPLEX,			
		};

Code: Select all

void spi_set_rate_low(void)
{
	printf("SET LOW\n");
	spi_bus_remove_device(spi);

	devcfg.clock_speed_hz=1*1000*1000;

	spi_bus_add_device(VSPI_HOST, &devcfg, &spi);
}

void spi_set_rate_high(void)
{
	printf("SET HIGH\n");
	spi_bus_remove_device(spi);

	devcfg.clock_speed_hz=8*1000*1000;

	spi_bus_add_device(VSPI_HOST, &devcfg, &spi);
}

Code: Select all

int writetospi(uint16 headerLength, const uint8 *headerBuffer, uint32 bodylength, const uint8 *bodyBuffer)
{
	spi_transaction_t trans;
	memset(&trans, 0, sizeof(spi_transaction_t));
	uint8_t bigBuffer[headerLength*8+bodylength*8];
	for(uint16_t i = 0; i < headerLength; i++) {
		bigBuffer[i] = headerBuffer[i];
	}
	for(uint16_t i = 0; i < bodylength; i++) {
		bigBuffer[i+headerLength] = bodyBuffer[i];
	}

	trans.length = headerLength*8+bodylength*8;
	trans.tx_buffer = bigBuffer;

	if(spi_device_transmit(spi, &trans) != ESP_OK)
	{
		printf("SPI WRITE ERROR!\n");
		return -1;
	}

	return 0;
}

Code: Select all

int readfromspi(uint16 headerLength,  const uint8 *headerBuffer, uint32 readlength, uint8 *readBuffer)
{

	spi_transaction_t trans;
	memset(&trans, 0, sizeof(trans));

	trans.length 	= headerLength*8;
	trans.rxlength 	= readlength*8;
	trans.tx_buffer = headerBuffer;
	trans.rx_buffer = readBuffer;

	uint32_t err_code = spi_device_transmit(spi, &trans);

	if(err_code != ESP_OK) {
		printf("SPI READ ERROR!\n");
		return -1;
	}

	return 0;
}

Code: Select all

assert failed: spi_device_transmit spi_master.c:859 (ret_trans == trans_desc)

0x40081a4a: panic_abort at C:/dev/esp/esp-idf/components/esp_system/panic.c:404
Backtrace:0x40081a4a:0x3ffda200 0x40091ba5:0x3ffda220 0x400962a5:0x3ffda240 0x40193955:0x3ffda360 0x40119ea7:0x3ffda390 0x4011a525:0x3ffda3e0 0x400e0ae2:0x3ffda400 0x400dec2b:0x3ffda430 0x400dec9d:0x3ffda450 0x400e303e:0x3ffda480 0x400dc9ff:0x3ffda4b0

0x40091ba5: esp_system_abort at C:/dev/esp/esp-idf/components/esp_system/system_api.c:112

0x400962a5: __assert_func at C:/dev/esp/esp-idf/components/newlib/assert.c:85

0x40193955: spi_device_transmit at C:/dev/esp/esp-idf/components/driver/spi_master.c:859 (discriminator 1)

0x40119ea7: WriteCmnd at c:\dev\fw\build/../display/spi_4wires.c:216

Code: Select all

SemaphoreHandle_t   spi_mutex = NULL;  //mutex, for spi command queue operation
void WriteCmnd( uint8_t aCmnd )
{
  esp_err_t        ret;
  spi_transaction_t t;

  /* clear entire transaction buffer */
  memset( &t, 0, sizeof( t ));

  /* initialize transaction buffer */
  t.length       = 8;                     /* commands are always one byte */
  t.tx_data[ 0 ] = aCmnd;                 /* store the command */
  t.flags        = SPI_TRANS_USE_TXDATA;

  /* send the command in polling mode */
  xSemaphoreTake(spi_mutex, portMAX_DELAY);
  ret = spi_device_transmit( SpiDeviceHandle, &t );
  assert( ret == ESP_OK );
  xSemaphoreGive(spi_mutex);
}