lpcware

micro SD  / SPI speed

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by bobi-one on Tue Apr 05 09:06:47 MST 2011
Have somebody  been able to interface sd cadrs via lpcxpresso with spi clk speed grerater than 12Mhz. As far as i know the micro sd card I'am using can achieve much greater speeds. And i think with:
LPC_SYSCON->SYSTICKCLKDIV  = 0x02;
LPC_SSP->CR0 = 0x00C7;
LPC_SSP->CPSR = 0x2;

it should been able to run at 24Mhz but is not. I'll be greatfull for all the help and hints i can get. : )

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