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What is the MMC Card Maximum read Speed on PIC?

 
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Imanjl



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What is the MMC Card Maximum read Speed on PIC?
PostPosted: Mon Jan 15, 2007 10:26 am     Reply with quote
Im using 18f485 on my project ,I realize that the function
mmc_read_block(address,size=512,*ptra) takes about 20-60ms to operate with the osc clock (40MHz) .

how Can I reduce this time ? ....20ms is very long time for a real time process .

I try to change the MMC_SPI.C file and decrease the delay time of the pulses
but I mixed up there cause ther are so many delay_us() in that file .

can anybody help me through this ?
Is there an optimization to get the better speed?
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