How To Establish connection between MSP432 And GUI Composer

Hi Luis, hi Jaydeep,

did you get it to work the MSP432 with GUI?

I managed to use the GUI inside the CCS with the MSP432. 

I am posting the ADC values to the Graph and i works with a maximum of 200ms Rate, Refresh rate from debug 100ms.

My Signal runs at 125Hz so i have to accelerate my Graph data rate and i want to get the Values with UART instead of Debug.

So the problem is, that the MSP432 cant connect to the MSP432 Launchpad via UART. I went to the propreties > General > connection

and i choose UARt Connection istead of XDS110 USB Debug. So i could increase the ADC values rates to the Graph.

I get a message error :

**Error**: Serial Communication failed at port: COM14, baud rate:9600!

1. Make sure the cable is plugged into both the target and the host on the right COM port.
2. Make sure a compatible target side serial monitor is loaded and running on the target device.

 So i went to the COM Propreties and saw that the Launchpad is connect to COM21 (Application/User Uart) and COM22(Auxiliary Data Port).

I change the COM Port 21  to 14 so the CCS "sees" the Launchpad. Is this right? Or should i change COM Port 22 to Port 14?

The CCS finaly finds the Launchpad but i get the next error:

"CORTEX_M4_0: Loader: One or more sections of your program falls into a memory region that is not writable.  These regions will not actually be written to the target.  Check your linker configuration and/or memory map."

My Questions are:

1-Do i have to initialize the same UART Periferial so i can send my ADC Values throw it, or does the Compiler makes the connection and can debug it throw the UART?

2-When i export the GUI from the CCS, does it only works with UART connection or is there allready other connection available for it?

3-If i use the UART connection the speed up the data rate Graph, can CCS support it or do i have to export the GUI and do it from outside CCS?

Regards,

Michael 

dear Michael,

i also managed to connect MSP432 launchpad with GUI Debugger and it also satisfied my requirement for refresh rate.  Due to my requirements are satisfied by  XDS110 i didn't go further in connect launchpad using UART.  but i can definitely suggest you on this because i faced this problem from long.

1) yes you have to initialize uart peripheral for connection with GUI. compiler is able make connection only if UART monitor is loaded on Host(launchpad) side.

2) if you establish connection between  gui and host using uart, exporting will also make connection successfully. 

3) yes uart will definitely satisfy your need of speed with higher baud rate. both will support if baud rate is high.

kindly refer following PDF and let me know if you successfully do it.

processors.wiki.ti.com/.../GUI_composer_custom_streaming.pdf

regards,

jaydeep panchal

Hi Michael,

This guide describes how to use UARTMon with CCS in Chapter 7: http://www.ti.com.cn/cn/lit/ug/spruhd4i/spruhd4i.pdf

As the guide mentions, the GPIO example included with TI-RTOS already enables UARTMon, so I gave it a try. These are the steps I followed:

1. Make sure you have TI-RTOS installed in CCS (Help-->CCS App Center). And if you want, GUI Composer
2. In CCS Resource Explorer, go to TI-RTOS for MSP43x --> MSP432 Family --> MSP432P401R --> Driver Examples --> MSP-EXP432P401R Launchpad-> TI Target Examples -> GPIO Examples -> GPIO Interrupt
3. Import and Build

1. Alternate Communication should be UART.
2. Add a ComPort (which should be "XDS110 Class Application/Uart UART" from the device manager)
3. Save

• Optionally, you can check the gpiointerrupt_msp432.cfg file if you are interested, but there's no need to change anything
• Select Run-> Debug Configurations
  1. Select "Program" Tab
  2. Device "XDS110 ..." should have "Load Program" option 
  3. From the device dropdown list, select "UART Connection_0/ComPort" 
  4. Select "Load Symbols only" 
  5. Make sure project is selected
  6. More details and screenshots are shown in User's Guide
• Click on Debug
  1. Start running application
  2. Select the "UART connection_0/ComPort"
  3. add Expression "count". This variable increments every time you press a button
  4. You can try adding a GUI Composer now to check the variable in real-time 

Regards,

Luis R

Hi Luis,

i followed your instructions and everthing worked but at the end when i change to UART Connection to watch the Varianle count it couldnt get me the value.

So i went to "Run -> Load -> Load Symbols" and it gave me an Error:

"ComPort: Trouble Reading Memory Block at 0x20000010 on Page 0 of Length 0x4: **Error**: Serial Communication failed at port: COM3, baud rate:9600!   To use serial monitor, please ensure the following prerequisites are satisfied:  1. Make sure the cable is plugged into both the target and the host on the right COM port.  2. Make sure a compatible target side serial monitor is loaded and running on the target device."

Now i tryed the GUI anyway to see if i could change that value. The CCS gave me the same Error.

I went to device manager and look at the COM Ports: 

There is two available and i tryied with both and i got the same error. Both COM Ports are setup with Baudrate 9600, 8Bit, no Parity, 1 Stop Bit. Do i have to change something here?

The Baudrate is also set up at 9600 at the CCS Projekt.

Have you tryied yourself? Did it worked?

Is there another way to set up GUI Composer as a Serial Monitor to open a communication with a ComPort and the MCU sends the data throw UART?

I see that your device is halted, make sure you start the application.

Your COM port should be COM3 and the settings are OK.

As shown in the screenshot below, it works on my side:

Regards,

Luis R