CCS/CCSTUDIO: CCS v7 program load fails if selecting erase necessary pages only

Timor Lansky said:

The programing starts but then stops with an error: load failed.

I found that this happens when i select erase "necessary pages only" in the debug options.

Using CCS 7.1.0.00016 with TI emulators 6.0.579.0 if I take the TivaWare example enet_io for an EK-TM4C1294XL when the Erase Method is set to "Necessary Pages Only" the download fails with the following reported in the CCS console:

CORTEX_M4_0: GEL Output: 
Memory Map Initialization Complete
CORTEX_M4_0: File Loader: Memory write failed: Core Reset error. The requested reset was aborted.
CORTEX_M4_0: GEL: File: C:\Users\Mr_Halfword\workspace_v7\enet_io\Debug\enet_io.out: Load failed.

Whereas with CCS 7.0.0.00042 and TI Emulators 6.0.579.0 can successfully download the same program when the Erase Method is set to "Necessary Pages Only".

Therefore, it appears a bug has been introduced between CCS 7.0.0.00042 and 7.1.0.00016 which has broken the "Necessary Pages Only" erase method.

Two questions, just to check if I have found the same problem as you:

1) What is the exact CCS version?

2) What is the full text of the error in the CCS Console?

The CCS version is 7.1.0.00016.

The text in the console is the same as you quoted.

CORTEX_M4_0: GEL Output:

Memory Map Initialization Complete

CORTEX_M4_0: File Loader: Memory write failed: CPU Reset error. The requested reset was aborted.

CORTEX_M4_0: GEL: File: D:\Timor\Electronics\Mad Ovi\MCU\CodeCB_R2\MadOviCB_R3\Debug\MadOviCB_R3.out: Load failed.

Thanks.

Timor Lansky said:

The text in the console is the same as you quoted.

CORTEX_M4_0: GEL Output:

Memory Map Initialization Complete

CORTEX_M4_0: File Loader: Memory write failed: CPU Reset error. The requested reset was aborted.

I tried a few more things in 7.1.0.00016:

1) Added the following to the tm4c1294ncpdt.gel script, to assert a System Reset when starting a debug session:

OnPreFileLoaded()
{
    GEL_AdvancedReset ("System Reset");
}

The reason was that fixed the problem described in CCS/EK-TM4C1294XL: CCS 7 "Reset the target on a connect" has no effect when loading a program

With the addition of the System Reset the CCS v7.1 program load still failed if selecting erase necessary pages only.

2) Capture the Debug Server log during one failure of the program load when selecting erase necessary pages only. I can't identify the cause of the failure from the log, but maybe someone from TI can.

erase_neccessary_segments_only.zip

3) Attempted to use a XDS110 instead of a Stellaris In-Circuit Debug Interface. The program load still failed if selecting erase necessary pages only.

i.e. haven't found any work-around to the problem.

Thank for your efforts Chester.

A few notes regarding this issue:

1. I am using XDS100v2 and i am working on my board with TM4C1294KCPDT.

2. I have two programs, the main app and a boot loader. The boot loader code loads fine even if i select "erase necessary pages only". It is a small program loaded to address 0x0000. Loading the main program fails if i select "erase necessary pages only". The main program is loaded to address 0x4000. I tried to load the main program to address 0x0000 but it still fails if i select "erase necessary pages only". Maybe the size of code is effecting it?

How do we get someone from TI to check this issue?

I will be happy to provide any additional information to help solve this issue.

Timor

Erase "By Address Range" works fine. Thanks.

Timor

Timor,

The tracking # for this issue is CCBT-2081. You may track its status using the SDOWP link in my signature (but please check after a few hours as it takes some time to show up at the link).