SDCARD SPI Driver

[Mike_d]

I noticied that the clock for the SPI bus is set to 400KHz in the MQX driver.  I'd like to run it as fast as possible. Can someone tell me what I need to do to run it at 20MHz?

[DavidS · Accepted solution]

Hi Mike_d,

Assuming M52259EVB bsp inside the m52259evb.h you can change the baud rate:

/*
** The SPI settings.
*/
#define BSP_QSPI_RX_BUFFER_SIZE                       (32)
#define BSP_QSPI_TX_BUFFER_SIZE                       (32)
#define BSP_QSPI_BAUDRATE                             1000000

Regards,

David