I've got some micro SD cards that work ok when connected to a PC=20
but doesn't read/write via SPI.
     My hardware works with several card brands. Never saw a problem=20
until now. It is an ATMega8.
     These cards all initialize correctly via SPI but answer CMD25 with=20
0xC1 and CMD18 with 0xC2. The correct answer should be 0x00.
     Can't find any solution to this odd behavior. Spent hours on Google=20
but no luck.

     Any suggestions?

     Thanks.
     Mark Jordan

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