CCS/CC3220MODA: I2C and SD Card issue

Akshit Singhal

Part Number: CC3220MODA

Tool/software: Code Composer Studio

Hi,

I'm trying to read data from a sensor via I2C and logging data on SD card via SDIO Mode, also accepting different commands over MQTT.
When I'm removing the SD card part my I2C sensor reading is working perfectly but when I'm using them together, SD card is working but I2C is not working. Unable to read anything from the I2C bus.

I'm using sysconf, simplelink_cc32xx_sdk_3_10_00_04 and it's switched to device Mode.

Kindly find the below-attached screenshots of the configuration.

Any help would be appreciated.

over 5 years ago

0 Sarah P over 5 years ago

TI__Mastermind 38980 points

Hi Akshit,

Are you calling Board_init() in your application before you initialize the other drivers?

Best regards,

Sarah

0 Akshit Singhal over 5 years ago in reply to Sarah P

Intellectual 480 points

Hi Sarah,

Thanks for the reply.

I have called the Board_init() at the start of everything. Problem is they are not working together but separately they are working fine. Once the Sd card has logged a single value, I2C stops working.

Regards

0 Sarah P over 5 years ago in reply to Akshit Singhal

TI__Mastermind 38980 points

Hi Akshit,

1. Are you using a LaunchPad or custom board?

2. Are you using blocking or callback mode?

3. Are you running the I2C and SD card from different threads? Are you using an RTOS?

4. Can you share your initialization code and the first call for each driver?

Best regards,

Sarah

0 Sarah P over 5 years ago in reply to Sarah P

TI__Mastermind 38980 points

Hi Akshit,

Were you able to look into this issue further?

Best regards,

Sarah

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CCS/CC3220MODA: I2C and SD Card issue