CCS/CC3200MODLAUNCHXL: Hooking up an SD Card without the booster board?

James Trafny

Part Number: CC3200MODLAUNCHXL

Tool/software: Code Composer Studio

Hello all!

I am trying to use the SD Host example included in the example projects, but I am having an issue where the UART terminal is telling me that it failed to initialize the card. The micro SD card I am using has a breakout board with the following labels: CD, CS, DI, DO, CLK, GND, 3v, 5v.

I have connected it to the TI Launchpad based off of the included pinmux file as such: PIN_6(P2.7) --> DO / PIN_7(P2.6) --> CLK / PIN_8(P2.3) --> DI / VCC --> 3v / 5V --> 5V / and CD and CS unconnected.

I have not made any changes to the example code. Anyone know what I am doing wrong, or how I might go about troubleshooting this issue?

Thanks in advance!

Very Respectfully,

James

over 6 years ago

0 James Trafny over 6 years ago

Intellectual 510 points

Update: I added the following code and connected PIN_2(P1.10) to CS on the breakout board.

MAP_PRCMPeripheralClkEnable(PRCM_GPIOA1, PRCM_RUN_MODE_CLK);
MAP_PinTypeGPIO(PIN_02, PIN_MODE_0, false);
MAP_GPIODirModeSet(GPIOA1_BASE, 0x8, GPIO_DIR_MODE_OUT);
MAP_GPIOPinWrite(GPIOA1_BASE, GPIO_PIN_3, 0x00);

No change though...

0 James Trafny over 6 years ago in reply to James Trafny

Intellectual 510 points

I've been stuck on this all day... I've tested the sd card and breakout board on an arduino and it worked fine, but I can't get the cc3200 to recognize it at all.

Anyone at least have some tips for troubleshooting?

0 Charles Oladimeji over 6 years ago

TI__Mastermind 33805 points

Hi,

looks like you have the DO and CLK pin interchanged.
see Usage section of link below for some more guidance.
processors.wiki.ti.com/.../CC3200_SDHost_FatFS

Regards,
Charles O

0 James Trafny over 6 years ago in reply to Charles Oladimeji

Intellectual 510 points

Thank you for your reply, unfortunately that was just a typo on my part (Pin_7 is 2.6 and Pin_6 is 2.7). Can you suggest any other troubleshooting tips? I'm still not getting the card to recognize at all...

0 Charles Oladimeji over 6 years ago in reply to James Trafny

TI__Mastermind 33805 points

Probably just another omission, but just eliminate the obvious. Do you also have the CMD line connected to P2.3?

0 James Trafny over 6 years ago in reply to Charles Oladimeji

Intellectual 510 points

Ah yes, that is another typo. Actually hook-ups are:

Gnd -> Gnd
Vcc -> Vcc
PIN_8 (P2.3) -> DI
PIN_7 (P2.6) -> CLK
PIN_6 (P2.7) -> DO
PIN_2 (P1.10) -> CS [sending it low]

When I step through the code, it all seems to execute fine and just ends up here:
if( CardInit(&sCard) )
{
Message("Error : Failed to initialize the card. Check "
"if card is properly inserted \n\r");
}

0 Charles Oladimeji over 6 years ago in reply to James Trafny

TI__Mastermind 33805 points

Hi,

Sorry for the delayed response. Were you able to resolve this?
Are you using the same SDcard booster board shown in the previously linked document?

Regards,
Charles O

0 James Trafny over 6 years ago in reply to Charles Oladimeji

Intellectual 510 points

No, we could never get this working. We were not using the SDcard booster from TI, we were using the Adafruit one.

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