• State
  • Locked Locked
  • Replies 0 replies
  • Subscribers 100 subscribers
  • Views 511 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

SD card with Ver1.0 not Respond to cmd8,cmd55 and cmd41

aju
Intellectual 460 points

Hi,

We are developing a handheld product in windows compact Embededded 7.SD card is inserted in the device with eboot.nb0 and nk.nb0. And the device is booting from SD card.Issue is that SD card with ver1.0 is not detected by the device.SD card with version 2.0 or higher detected by the device.

On debugging we found  that SD with version 1.0 not respond to CMD8,CMD55and CMD41.AS a result SD voltage validation fails.These commands are issued in SD_init function of SD.c

For SD card with version 1.0,we issue CMD41 with argument HCS low.It was also fail.

Please help to get a solution to detect ver1.0 SD card in the device.