--- In f..., Abhishek Mitra wrote: >
> This C program though written for a 8051 may come in handy
>
> http://www.cs.ucr.edu/~amitra/sdcard/sdcard_driver.c
>
> hai thanks you for the code. i follwed the code and got mine working .
thanks a lot > ______________________________________________________________________
______________ > Be a better friend, newshound, and
> know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ >
To post a message, send it to: f...
To unsubscribe, send a blank message to: f...
Reply by Abhishek Mitra●April 22, 20082008-04-22
This C program though written for a 8051 may come in handy
To post a message, send it to: f...
To unsubscribe, send a blank message to: f...
Reply by John Kent●April 22, 20082008-04-22
Is it CS or CS_N ?
k...@gmail.com wrote: > hai all , i am arun . i am working on interfacing SD
card using FPGA. i am using SPI mode of communication to SD card .
> 1. i wrote the code in verilog for the identification mode , i generated
clock frequency of 100 khz to SD clk then i kept the SD card clock cycle
to run for 74 cycles with CS high
> 2. after lowered the CS to 0 and gave the command 0 i.e 40_00_00_00_00_95
(hex) to the card , i should get the respoce as 1 byte 00x but i am getting
1(high) throughout for any no. of clock cycles. what could be the problem for
this. . the power supply given to the card is 3.3 v.
>
> i also tried using SD bus mode , since the respose is always high.. i am
following sandisk SD card product manual for reference. kindly tell me how to
initialise the card to get the proper response
>
To post a message, send it to: f...
To unsubscribe, send a blank message to: f...
Reply by k7ar...@gmail.com●April 22, 20082008-04-22
hai all , i am arun . i am working on interfacing SD card using FPGA. i am using
SPI mode of communication to SD card .
1. i wrote the code in verilog for the identification mode , i generated clock
frequency of 100 khz to SD clk then i kept the SD card clock cycle to run
for 74 cycles with CS high
2. after lowered the CS to 0 and gave the command 0 i.e 40_00_00_00_00_95
(hex) to the card , i should get the respoce as 1 byte 00x but i am getting
1(high) throughout for any no. of clock cycles. what could be the problem for
this. . the power supply given to the card is 3.3 v.
i also tried using SD bus mode , since the respose is always high.. i am
following sandisk SD card product manual for reference. kindly tell me how to
initialise the card to get the proper response
To post a message, send it to: f...
To unsubscribe, send a blank message to: f...