hello group,
I hope u can hepl me in this. I am trying to interface SD card to ARM processor. Initialisation of SD card is fine. i have verified signals on logic analyser also. While writing if i write few particular characters i can read it back. SD card holds MISO line HIGH and locked up till i reset processor. The observation is, if i write something other than xxxx x1xx the card hangs on i.e. it does not get the start token from the card. Can anybody figure it out? this is peculiar.i have verified the observation with all possible combinations of 8 bit.
I hope u can hepl me in this. I am trying to interface SD card to ARM processor. Initialisation of SD card is fine. i have verified signals on logic analyser also. While writing if i write few particular characters i can read it back. SD card holds MISO line HIGH and locked up till i reset processor. The observation is, if i write something other than xxxx x1xx the card hangs on i.e. it does not get the start token from the card. Can anybody figure it out? this is peculiar.i have verified the observation with all possible combinations of 8 bit.