sd card interface

darshan bhanushali

hello,

I am working on stellaris lm4f120xl .I want to interface sd card with it.I had load the sd_card project of lm4f232. I had done the change in the program according to pin configuration of lm4f120xl.but still it was showing me error #20 identifier "GPIO_PA2_SSI0CLK" is undefined cfal96x64x16.c . I had check upper side of this main program and i was #define DISPLAY_PINCFG_SSI0CLK GPIO_PA2_SSI0CLK it means i had already define it. and i had check the rom.c file which is the library for the "ROM_GPIOPinConfigure(DISPLAY_PINCFG_SSI0CLK);" i was ok.

I am not able to understand the problem with this kind of error.

can you please help me??

over 11 years ago

0 Markel Robregado over 11 years ago

Guru 86745 points

Hi Darshan,

See, solution from post below.

Tiva Launchpad SSI Issue Need Help Please

-kel

0 darshan bhanushali over 11 years ago in reply to Markel Robregado

Intellectual 395 points

Thanks for reply,

I had changed setting as you said but still getting same error.what is the solution?

0 Stellaris John over 11 years ago in reply to darshan bhanushali

TI__Expert 3445 points

Darshan,

If you are trying to read data from an SD card, what booster pack are you using for the Launchpad?

cfal96x64x16.c and DISPLAY_PINCFG_SSI0CLK GPIO_PA2_SSI0CLK are used to communicate with the display on the LM4F232 board. Since the Launchpad does not have a display on it, cfal96x64x16.c and all related display code should be removed from the project.

0 Markel Robregado over 11 years ago

Guru 86745 points

Hi Darshan,

I was referring to the Preprocessor defines at your project options. The changes should be as below..

PART_LM4F120H5QR TARGET_IS_BLIZZARD_RA1

-kel

0 darshan bhanushali over 11 years ago in reply to Markel Robregado

Intellectual 395 points

Thank you,sir

I fixed that problem with remove the display commamd but one another debugging time error is coming now.which is "projectname.out Could not open file" .I had also connect launchpad with the pc.

0 darshan bhanushali over 11 years ago in reply to darshan bhanushali

Intellectual 395 points

At present i try to only read sd card.I had build my own simple sd card reader which has a six pin.

MOSI,MISO,CLK,CS.GND and SUPPLY.so that i need to connect respective pin with launchpad port A pin 5,4,2,3.

If i remove that commands of clk,tx,rx than how to connect with sd card?

and if remove that command for display all the error are solve but also getting one debugging time error that is .out file could not open.

now what can i do?

0 darshan bhanushali over 11 years ago in reply to darshan bhanushali

Intellectual 395 points

Now sir with your help i solve all the error, only one error was comming which is "projectname.out file could not open".

I also try ssi_master.c code from the exmple of stellarisware and i an getting same error.

so what is the solution for this silly error??

0 Stellaris John over 11 years ago in reply to darshan bhanushali

TI__Expert 3445 points

Darshan,

Did you make your own project from scratch? We recommend starting development by modifying one of our example projects.

It's okay to remove the display related SPI code from the project since the display on the LM4F232 uses SPI. The mmc-dk-tm4c123g.c file is a file used to port FatFS to the Tiva parts. It contains a power_on() function that has the code that initializes the pins and SPI module for the sd card.

0 darshan bhanushali over 11 years ago in reply to Stellaris John

Intellectual 395 points

first of all i try ssi_master.c code from the exmple of stellarisware and i an getting "projectname.out could not open file" error. and sir i try my own hardware for sd card interfacing.

so what is the solution for this silly error??

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sd card interface