DEVKIT-MPC5744P UART via OpenSDA MCU possible?

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DEVKIT-MPC5744P UART via OpenSDA MCU possible?

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markusransberge
Contributor III

Hi all,

just a quick question about the possible native ways to simple transfer data (without JTAG) between a PC and the DEVKIT-MPC5744P.

Am I right in my assumption that the board cannot use the CDC Serial Port provided by the OpenSDA chip as an UART Tx/Rx connection to the running target processor? (Since I cannot find any pin descriptions for it. The documentation of the DEVKIT-MPC5748G, as an example, actually specifies them.)

So do I have to use the LINFlexD_0 Bus in combination with a LIN to RS232/USB adapter to make that easily work with a terminal emulator on the PC? Or are there actually easier/other ways?

Many thanks.

Markus Ransberger

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markusransberge
Contributor III

I actually got it to work. Thanks nonetheless.

I put the important bits (pictures) below this text.

OpenSDA UART.pngMPC LIN1.pngD[9].PNGD[12].PNGLINFlexD_Init.PNG

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markusransberge
Contributor III

I actually got it to work. Thanks nonetheless.

I put the important bits (pictures) below this text.

OpenSDA UART.pngMPC LIN1.pngD[9].PNGD[12].PNGLINFlexD_Init.PNG

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jfrey
Contributor IV

I haven't done two way data transfer.

I have gotten "data" from the board to my PC.

Here is what I have & how it is configured:

And the Putty output:

With the TX pin connected to the RX of my UART<->USB


Next step is to send binary data and see if I can decode it with Python/Matlab.

I also had it running from the demo UART S32 project with the same wiring setup.

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