MSP430FR2433: I2C

Teana Mohamed

Part Number: MSP430FR2433

I am trying to send data from my STM32H7 board (Master) to my MSP430FR2433 (Slave) through I2C but with no luck.

I tried to imitate the MSP430 Master-Tx example code into the STM32 and I tested it on Arduino and it works. Also, Im sure my MSP430 Slave-Rx code is correct, I tested it by sending data from another MSP430 and it works.

Any suggestions on what the problem could be?

over 2 years ago

0 Jace H over 2 years ago

TI__Guru 56685 points

Hello,

Please see the following resources to help debug your I2C issue. Being able to see what is physically going across the I2C lines will help tremendously as well.

Common Solutions to eUSCI and USCI for Serial Communication -- General FAQ app note with common issues for I2C/SPI/UART

MSP430FR2433 Standard I2C Example for Peripheral side

MSP Academy for I2C -- Task 3 -- This tasks explains how to connect to target devices.

0 Teana Mohamed over 2 years ago in reply to Jace H

Prodigy 30 points

Thank you for the suggestions but none worked

0 Jace H over 2 years ago in reply to Teana Mohamed

TI__Guru 56685 points

Hello,

If you follow the debug steps above, you should be able to narrow down your issue on the MSP430. we also have solutions for several issues in the documentation.

If you are asking about the I2C on the STM32 side, we do not support that here. You would need to go to their forums.

0 Teana Mohamed over 2 years ago in reply to Jace H

Prodigy 30 points

Hi Jace, I am sure of the I2C on the STM32 side, it is successfully transmitting to other devices except MSP430, and the MSP430 is receiving from other devices as well, using the same code and settings.

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MSP430FR2433: I2C