topic TWR LCD in 8-bit Microcontrollers

TWR LCD

piotrpeczek — Tue, 20 May 2014 12:22:14 GMT

Hi, I'm trying to load official .s19 demo to my MCF51JM128 but only white screen appears. I can't use BDM cable and my SW5 settings are all right. How to fix it?

Re: TWR LCD

DavidS — Tue, 20 May 2014 13:48:20 GMT

Hi Piotr,

Sorry for your difficulty.

When you plug in USB cable, it is enumerating as USB MSD? Do you see "Bootloader mode: waiting for S19 file..." displayed on LCD?

If yes to both please try using my "precompiled S19" files to test your display.

Here is my sw1 configuration for reference:

Regards,

David

Re: TWR LCD

piotrpeczek — Wed, 21 May 2014 11:48:47 GMT

Thank you! This is very helpful, but only to regain bootloader. I want to design my own application using MCF51JM128, but as mentioned earlier Official Demo provided by CW10 results only in white screen ;/

Re: TWR LCD

marcinurbanski — Wed, 21 May 2014 20:15:27 GMT

Hi!

I have same problem. Your demos work great, but when I try to compile the latest demo from eGUIs package only white screen show up. I use CW 10.6. May I ask you to show us your source files (1 project would be enough to compare diffrences)? .

Re: Re: TWR LCD

DavidS — Thu, 22 May 2014 16:04:31 GMT

Hi Piotr,

I had to dust off some old old project files to find something that compiles with CW10.6 and is targeted for working with the TWR-LCD bootloader on the JM128.

Attached is ZIP.

Open the ",project" in the following path:

TWR-LCD Demo Projects\CW MCU 10\HelloWorld_MCF51JM_SPI_BL

Before you try to clean and build you can try the S19 file in the sub folder with respect to the above project path:

MCF51JM128_Internal_Flash\HelloWorld_MCF51JM_SPI_BL.elf.S19

Hope this helps.

Regards,

David