topic SDCARD SPI Driver in MQX Software Solutions https://community.nxp.com/t5/MQX-Software-Solutions/SDCARD-SPI-Driver/m-p/171675#M1988 <HTML><HEAD></HEAD><BODY>I noticied that the clock for the SPI bus is set to 400KHz in the MQX driver.&nbsp; I'd like to run it as fast as possible. Can someone tell me what I need to do to run it at 20MHz?</BODY></HTML> Mon, 01 Feb 2010 23:31:50 GMT Mike_d 2010-02-01T23:31:50Z SDCARD SPI Driver https://community.nxp.com/t5/MQX-Software-Solutions/SDCARD-SPI-Driver/m-p/171675#M1988 <HTML><HEAD></HEAD><BODY>I noticied that the clock for the SPI bus is set to 400KHz in the MQX driver.&nbsp; I'd like to run it as fast as possible. Can someone tell me what I need to do to run it at 20MHz?</BODY></HTML> Mon, 01 Feb 2010 23:31:50 GMT https://community.nxp.com/t5/MQX-Software-Solutions/SDCARD-SPI-Driver/m-p/171675#M1988 Mike_d 2010-02-01T23:31:50Z Re: SDCARD SPI Driver https://community.nxp.com/t5/MQX-Software-Solutions/SDCARD-SPI-Driver/m-p/171676#M1989 <HTML><HEAD></HEAD><BODY><P>Hi Mike_d,</P><P>Assuming M52259EVB bsp inside the m52259evb.h you can change the baud rate:</P><P>/*<BR />** The SPI settings.<BR />*/<BR />#define BSP_QSPI_RX_BUFFER_SIZE&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (32)<BR />#define BSP_QSPI_TX_BUFFER_SIZE&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (32)<BR />#define BSP_QSPI_BAUDRATE&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1000000</P><P>Regards,</P><P>David</P></BODY></HTML> Wed, 03 Feb 2010 23:16:36 GMT https://community.nxp.com/t5/MQX-Software-Solutions/SDCARD-SPI-Driver/m-p/171676#M1989 DavidS 2010-02-03T23:16:36Z