EK-TM4C129EXL: C runtime or startup code

John Hite

Part Number: EK-TM4C129EXL
Other Parts Discussed in Thread: TM4C1231E6PM, EK-TM4C1294XL, EK-TM4C123GXL

Actual MCU: TM4C1231E6PM

I have been using a pair of launchpads to get familiar with the 123 and 1231 MCUs. Now I am going into unknown territory. My target project uses the TM4C1231E6PM MCU but the whole project uses gcc and gdb. I could sure use a start-up asm example to get me from address 0 to main(), like setting up what we see in startup_ccs.c, etc. Is there a compiler setting that will help? Or some startup docs I have yet to find?

Thanks,

over 3 years ago

+1 Charles Tsai over 3 years ago

TI__Guru**** 191186 points

Hi John,

I'm not familiar with GDB as it is a third party tool. In CCS, you can compile the project using GCC compiler. See below to specify GCC compiler. In any case, I'm attaching a simple project0 built using GCC compiler from CCS. You can take a look. I suppose you can import the project into GDB but I can't help you how to do it and how to change any settings in GDB as that is beyond my knowledge.

project0_GNU.zip

+1 Charles Tsai over 3 years ago in reply to Charles Tsai

TI__Guru**** 191186 points

Are you using TM4C129 or TM4C123? Your title is about EK-TM4C1294XL. The example project I attached is for EK-TM4C123GXL.

0 John Hite over 3 years ago in reply to Charles Tsai

Intellectual 370 points

Hi,

Sorry for late reply, not well today. For experimentation I mostly use the EK-TM4C123GXL. But the real target will be the TM4C1231E6PM MCU so anything for the 123 would probably be much closer.

That is quite useful. Looks like the biggest thing will be halving the flash size.

Thanks,

John

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EK-TM4C129EXL: C runtime or startup code