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Original question:

MSP430FR6047: How to get ADC data(waveform) in the MSP430FR6047EVM_USS_Water_Demo project without using USS GUI?

MSP430FR6047: MSP430FR6047 UART-related questions

?? ?
Prodigy 30 points
Part Number: MSP430FR6047
Other Parts Discussed in Thread: EVM430-FR6047

Tool/software:

I encountered some issues while using the official UART example msp430fr60x7_euscia0_uart_02.c. After connecting the development board to the computer via USB and downloading the program, I couldn't achieve send and receive functionality using a serial assistant. When I sent a byte using the serial transmission assistant, I didn't receive any reply. What could be the reason for this? Is it a problem with the hardware connection jumper caps?

Thanks,

Hu Cui.

  • 0
    Guru 39090 points

    Do you have the baud rate set correctly?

    Show us how your jumpers are set.

    Make sure you are sending to the correct COM port.

    Put a scope on it to see if you have anything on the TX or RX lines, and check the baud rate.

    put a breakpoint in the ISR to make sure you are getting what you send.

  • 0 in reply to Keith Barkley
    Prodigy 30 points

    Hi,

    Thanks for your suggestions.

    I think my baud rate selection should be correct. The image below shows the jumper settings during my use. I noticed that both `uart_01.c` and `uart_02.c` have the following statement, while `uart_03.c` and `uart_04.c` do not: 'To test code in LPM3, disconnect the debugger and use an external supply. Otherwise, use LPM0.' Does this mean that `uart_03.c` and `uart_04.c` can achieve the desired results while using USB power? Or do all the examples require an external power supply? If I want to add breakpoints for observation, I need to uncheck 'Enable Ultra Low Power debug/lpmx.5 debug' in the second image. Will this affect the results?

  • 0 in reply to ?? ?
    TI__Mastermind 35725 points

    For our demo code used the P2.0 and P2.1 as UART pins but on EVM430-FR6047 board the ez-fet back channel UART connect with P1.2 and P1.3. That is why you can't get any information.

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