TMS320C6748 Loader issue

Adam Atencio

Other Parts Discussed in Thread: OMAP-L138, TMS320C6748, OMAPL138

I have a OMAP-L138 EVM development kit and trying to learn how to program it for the first time.
The chip is a TMS320 C6748B2CE.

I get the following when i try to program the chip (program still debugs and runs but on reset of power the memory is set back to what ever was initially stored in the flash)

C674X_0: Loader: One or more sections of your program falls into a memory region that is not writable. These regions will not actually be written to the target. Check your linker configuration and/or memory map.

C674X_0: Trouble Writing Register PC: (Error -1176 @ 0x8BA0) Unable to access device memory. Verify that the memory address is in valid memory. If error persists, confirm configuration, power-cycle board, and/or try more reliable JTAG settings (e.g. lower TCLK). (Emulation package 5.1.507.0)

The ccxml file setting are for TMS320C6748 and the ..\..\..\..\evmc6748_v1-1\gel\C6748.gel

How would i go about fixing this error and flashing the chip with the program?

over 10 years ago

0 Titusrathinaraj Stalin over 10 years ago

TI__Guru** 116100 points

Hi Adam,

Could you attach the snap shot of your EVM board and error.

C674X_0: Loader: One or more sections of your program falls into a memory region that is not writable. These regions will not actually be written to the target. Check your linker configuration and/or memory map.

What program were you loaded ?

Did you set the boot switch to emulation mode ?

C674X_0: Trouble Writing Register PC: (Error -1176 @ 0x8BA0) Unable to access device memory. Verify that the memory address is in valid memory. If error persists, confirm configuration, power-cycle board, and/or try more reliable JTAG settings (e.g. lower TCLK). (Emulation package 5.1.507.0)

I would like to suggest to use "Adaptive frequency (clock)" with 1MHz in emulator target configuration advance settings.

http://processors.wiki.ti.com/index.php/Adaptive_Clocking

0 Adam Atencio over 10 years ago in reply to Titusrathinaraj Stalin

Prodigy 230 points

Could you attach the snap shot of your EVM board and error

What program were you loaded ?

The program that is loaded is the basic blink LED example that is on the TI-RTOS intro website: http://processors.wiki.ti.com/index.php/Introduction_to_the_TI-RTOS_Kernel_Workshop#Intro_to_TI-RTOS_Kernel_Workshop_Online_Video_Tutorials

Did you set the boot switch to emulation mode?

Don't know if the board has a emulation mode switch, and I don't see any indicators that i'm in a emulation mode. How would i go about checking that?

I would like to suggest to use "Adaptive frequency (clock)" with 1MHz in emulator target configuration advance settings.

Still get the same error. The connection properties are as follows:

0 Titusrathinaraj Stalin over 10 years ago in reply to Adam Atencio

TI__Guru** 116100 points

Hi Adam,

Try to create new hello world or any sample test program and try to load.

Just avoid using the RTOS example.

http://processors.wiki.ti.com/index.php/Projects_and_Build_Handbook_for_CCS

0 Adam Atencio over 10 years ago in reply to Titusrathinaraj Stalin

Prodigy 230 points

Ok. This one runs and compiles just fine. No errors. However when I power off and power on the board it still doesn't stay in memory.

Also not sure where the Hello World is supposed to be logged, it doesn't appear in the console window.

0 Titusrathinaraj Stalin over 10 years ago in reply to Adam Atencio

TI__Guru** 116100 points

Hi Adam,

Also not sure where the Hello World is supposed to be logged, it doesn't appear in the console window.

http://processors.wiki.ti.com/index.php/SYS/BIOS_Getting_Started_Guide#Running_a_SYS.2FBIOS_Project

Please try to create simple 'C' hello world project which already has in "Basic Examples" when you do "New CCS Project".

However when I power off and power on the board it still doesn't stay in memory.

Could you elaborate a bit on this.

0 Shankari G over 10 years ago

TI__Mastermind 43955 points

Hi Adam,

Adam said:
I have a OMAP-L138 EVM development kit and trying to learn how to program it for the first time.
The chip is a TMS320 C6748B2CE.

basically, there are two methods to load the program into the OMAPL138 - EVM / LCDK. They are,

1. serial flasher utility which flashes the program into memory devices such as NAND,NOR,SPI.

2. CCS + emulator which loads the program directly into RAM of OMAPL138 and run the program.

I hope, you are following the second method. please make sure that it doesnot have any connection issues between JTAG, EVM and your host PC which runs CCS. http://processors.wiki.ti.com/index.php/Debugging_JTAG_Connectivity_Problems#How_to_debug_whether_the_JTAG_scan_path_is_broken

And also, in CCS, open the target configuration file, *.ccxml and make sure the emulator type, device type are set appropriately. Click "Test connection" and check that the output messages are successful in detecting and establishing the JTAG connection.

If it is first method, please visit http://processors.wiki.ti.com/index.php/Serial_Boot_and_Flash_Loading_Utility_for_OMAP-L138

Regards,

Shankari

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