You can set the Peripheral Clock with a divider?
I would decrease the speed of the SPI bus under Mhz but with the log SCBR I can get only up to 1 MHz.

If your are using the spidev driver you can set the SPI CLK in the spidev_test.c program.

*******************************
* spidev_test.c
*******************************
static uint8_t bits = 8;
static uint32_t speed = 500000; // 500 kHz
static uint16_t delay;
*******************************

Michael

I need the prescaler, if seven to 500kHz the device returns an error of spi
MAIN-CLK is 400mhz then 400/255-> 1MHz for the SPI device.
but in theory it would be possible to use a custom clk?