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Altera_Forum
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8 years ago

spidev for DE0-Nano-Soc

I have bought terasic DE0-Nano-Soc board and startup the board. I can see spidev under /dev . also i can use it to connect with my slave device. I am new to soc concept, i want to build everyth...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
8 years ago

I have got one method to build everything for de0-nano-soc board,

https://hackmd.io/iwqwlmdsweygtauzgnnmgbmanpekaoyeabjagmurmwjsccg=?view#3-build-linux-filesystem

i have follow this procedure , Board is booted successfully but while booting i got the error continuously as follows,

I tried by changing the card, but result is same. 

 mmcblk0: retrying using single block read
 mmcblk0: error -110 transferring data, sector 31115616, nr 80, cmd response 0x900, card status 0x0
 mmc_host mmc0: Bus speed (slot 0) = 200000000Hz (slot req 400000Hz, actual 400000HZ div = 250)
 mmc_host mmc0: Bus speed (slot 0) = 200000000Hz (slot req 25000000Hz, actual 25000000HZ div = 4)
 mmcblk0: error -110 transferring data, sector 31115616, nr 80, cmd response 0x900, card status 0x0
 mmcblk0: retrying using single block read
 mmcblk0: error -110 transferring data, sector 31115704, nr 72, cmd response 0x900, card status 0x0
 mmc_host mmc0: Bus speed (slot 0) = 200000000Hz (slot req 400000Hz, actual 400000HZ div = 250)
 mmc_host mmc0: Bus speed (slot 0) = 200000000Hz (slot req 25000000Hz, actual 25000000HZ div = 4)
 mmcblk0: error -110 transferring data, sector 31115704, nr 72, cmd response 0x900, card status 0x0

what can i do to clear this error?