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MSP430FR2355: MSP430FR2355

mor ge
Prodigy 110 points

Part Number: MSP430FR2355

Hi,

I program the micro controller MSP430FR2355 using the "Driverlib" library.

I added a UART interface (EUSCI_A1, pin: p4.2+p4.3) baud rate: 9600.

Its works great between MSP430 to PC.

when I add another communication I2C interface to code (I2C Master, EUSCI_B1, pin: p4.6+p4.7).

so, the UART does not work. 

* SMCLK (1MHz) is clock to UART and to I2C.

Anyone had this problem?

  • 0
    Guru 102415 points

    What is it about the UART that doesn't work?

    My first guess is that you're trying to do too much in your I2C ISR, and thus locking out the UART code. Can you post (or attach) your code?

  • 0
    TI__Mastermind 27050 points

    To add onto Bruce's questions, have you tried isolating the different processes? Have you attempted to use just the UART while having the I2C initialized, and vice versa? Or does the issue only appear when using both at the same time? Your code will help us debug if you can provide it.

    Regards,

    Luke

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