TM4C1290NCPDT: Breakpoints don't work at boot_serial sample.

hiroyuki.seki

Prodigy 20 points

Part Number: TM4C1290NCPDT

I'm using environment below.

Code Composer Studio
Version: 10.1.0.00010

OS: Windows 10, v.10.0, x86_64 / win32
Java version: 1.8.0_144

XDS200 USB Debug Probe

TivaWare_C_Series-2.1.4.178

I'm now trying to create modified boot loader for our product, so I'm now debugging Tivaware boot_serial sample to know how bootloader works and how to fix it.

https://dev.ti.com/tirex/explore/node?node=ABcBenm2yzQjHEX.zyXVew__mic1X5.__LATEST

But at debugging, breakpoints don't work.

Running at step, when "bl" operation runs at bl_startup_ccs.s file, step running finishes and program goes to running state.

How can I use breakpoints, and step running at this program?

over 3 years ago

+1 Charles Tsai over 3 years ago

TI__Guru**** 191296 points

Hi,

It is indeed a bit tricky to debug the bootloader as the startup file bl_startup_ccs.s is written in assembly. This is what I do.

1. If you are using the stock bootloader boot_serial then put a breakpoint in the disassembly window at line 0x00000342. See below.

2. Try to single step the assembly line once, you should see that the bl_startup_ccs.s file immediately like below. When you want to set breakpoints, use the disassembly window for the bl_startup_ccs.s.

0 hiroyuki.seki over 3 years ago in reply to Charles Tsai

Prodigy 20 points

Thanks! I got it!

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TM4C1290NCPDT: Breakpoints don't work at boot_serial sample.