MSP430G2231: MSP430 Launchpad with MSP430G2231 "Error initializing emulator: Could not find MSP-FET430UIF on specified COM port"

Hi Tim 

>> It is using theMSP430G2231 as shipped on the Launchpad board with USB interface.

Could you please explain what MCU board you are used? Is it the target board on https://www.ti.com/product/MSP430G2231#design-development or the user board?

and what debugger are used? is it MSP-FET430UIF or MSP-FET?

Thanks

The board is the original MSP-EXP430G2 Launchpad. The one with the annoying mini (not micro) USB connector.

I believe the MSP430G2231 came with the Launchpad board originally. I have several of them.

I'm not sure what you mean by which debugger (MSP-FET430UIF or MSP-FET?)  This is the Launchpad that has the USB to serial chips on the board. In the past the CCS debugger worked without any special configuration or FET selection.

Hi Tim

Could you please give me the full picture of this launchpad (both sides)?

I'd like to find the link on TI.com of this launchpad

I found this one https://www.ti.com/tool/MSP-EXP430G2ET. But I think this board is different with the launchpad on your hand

Thanks

I agree my board looks different than the one in your link. EXP430G2ET must have been a later version compared to my EXP430G2.

Hi Tim

Thanks for your clearify!

I think it may be the driver issue because MSP-FETUIF

Please check this previouse E2E thread.

https://e2e.ti.com/support/microcontrollers/msp-low-power-microcontrollers-group/msp430/f/msp-low-power-microcontroller-forum/1231383/msp-exp430g2-cannot-get-usb-to-work

You can try the driver in this thread

Thanks

So install the driver

and that should fix the issue?

Hi Tim

I don't have EXP430G2 on my hand

I think this driver should be OK based on the previouse E2E thread.

Could you please kindly help to try it?

Thanks!

I was able to update to driver 1.5.0.0 from the zip file. It did not install using "browse for drivers" saying the best driver was already installed. Instead I used "let me pick from a list"  and the 1.5 driver was shown, but the 1.3 driver was default.

This seems to fix the problem in CCS, and I am able to debug.

However my code that uses the USB UART for serial still doesn't work. This code has been operating for many years, and suddenly stopped working, prompting me to run the CCS debugger to investigate revealing the driver issue. Now looking at the code: After initializing the UART, incoming characters are never received. The simple code below is modified to only blink the LED when a UART character is received, which never happens.

        P2OUT = 0x00;
        P2SEL = 0x00;
        P2DIR = 0xFF;
       
        __enable_interrupt();
       
       
        TimerA_UART_init();                     // Start Timer_A UART
      
        for (;;)
        {
             
            // Wait for incoming character
            __bis_SR_register(LPM0_bits);
           

            // blink LED for every RX character
            P1OUT |= 0x01;                                 // set P1.0 (green LED)
            _delay_cycles(60000);        //50ms
            P1OUT &= ~0x01;                                 // clear P1.0 (green LED)
                   }