Ethernet interface to ROM boot loader and Flash boot loader source for the TM4C1294NCPDT

Philip Molloy

A quick Google search immediately returned a link to documentation for the TivaWare Boot Loader, but I have been unable to find the actual source. Based on forum posts I learned that that documentation only applies to the Flash version of the boot loader, which should only be used when the ROM version is missing a required feature. The ROM boot loader cannot be modified and ships with some TI MCUs.

Reading the documentation for my processor does mention a ROM based boot loader and the TivaWare Peripheral Driver Library discusses interfacing with ROM, but not over Ethernet. Is there a way to interface with the ROM boot loader over Ethernet?

Either way, where can I find the source for the Flash based boot loader? I've done extensive searching, including the following obvious locations:

over 9 years ago

0 Amit Ashara over 9 years ago

TI__Guru**** 244400 points

Hello Philip

The full TivaWare has the source code for the flash based boot loader. After installing the TivaWare, it shall be present under the directory boot_loader . As an example in my local copy created from the installer all the files are in

D:\ti\TivaWare_C_Series-2.1.1.71\boot_loader

And examples projects under respective boards for DK-TM4C12xx starting with the key word "boot_"

D:\ti\TivaWare_C_Series-2.1.1.71\examples\boards\dk-tm4c129x

The ROM based ethernet boot loader is available on device revisions RA1 to RA2.

Regards
Amit

0 Philip Molloy over 9 years ago in reply to Amit Ashara

Prodigy 200 points

And if I'm running Linux? Or OSX?

0 Amit Ashara over 9 years ago in reply to Philip Molloy

TI__Guru**** 244400 points

Hello Philip,

The path is relative. So basically wherever the TivaWare is installed the path of the boot_loader or examples originate from that point.

Regards
Amit

0 Philip Molloy over 9 years ago in reply to Amit Ashara

Prodigy 200 points

Sure, but I only see Windows installers: software-dl.ti.com/.../index_FDS.html

0 Amit Ashara over 9 years ago in reply to Philip Molloy

TI__Guru**** 244400 points

Hello Philip,

How to install....

processors.wiki.ti.com/.../Using_TivaWare_and_ControlSUITE_with_Linux_CCS

Regards
Amit

0 Philip Molloy over 9 years ago in reply to Amit Ashara

Prodigy 200 points

Thank you!

0 Dinesh K M over 9 years ago in reply to Philip Molloy

Intellectual 380 points

Hi Amit,

I have checked for boot loader code in the above mentioned paths (D:\ti\TivaWare_C_Series-2.1.1.71\boot_loader or
D:\ti\TivaWare_C_Series-2.1.1.71\examples\boards\dk-tm4c129x) but unfortunately I couldn't find the same.
I am using windos 7 machine and have installed Tivaware in my PC . I have found a folders like C:\ti\tirtos_tivac_2_14_00_10 and C:\ti\tirtos_tivac_2_14_00_10\tirtos_tivac_2_14_00_10_examples. Is there any version mismatch?

Regards,
Dinesh

0 Philip Molloy over 9 years ago in reply to Dinesh K M

Prodigy 200 points

Take a look at the Linux instructions. The Windows installers are just self-extracting ZIP files. Rename the EXE extension to ZIP and extract it.

0 Dinesh K M over 9 years ago in reply to Philip Molloy

Intellectual 380 points

Hi Philip,

I have tried to extract the exe file after renaming it but I couldn't do the same. Also we don't have Linux PC now. Do you have the boot loader code? If yes please share the same.Then it will be helpful for us.

Regards,
Dinesh

0 Amit Ashara over 9 years ago in reply to Dinesh K M

TI__Guru**** 244400 points

Hello Dinesh

What was the name of the exe that you downloaded and installed?

Regards
Amit

0 Philip Molloy over 9 years ago in reply to Amit Ashara

Prodigy 200 points

Looks like that isn't reflected in rom.h.

ti/tirtos_tivac_2_12_01_33/products/TivaWare_C_Series-2.1.0.12573c/driverlib/rom.h

...

1678 #if defined(TARGET_IS_TM4C129_RA1)

1679 #define ROM_UpdateEMAC \

1680 ((void (*)(uint32_t ui32Clock))ROM_EMACTABLE[71])

1681 #endif

...

It looks the same in ti/SW-TM4C-2.1.1.71/driverlib/rom.h

0 Amit Ashara over 9 years ago in reply to Philip Molloy

TI__Guru**** 244400 points

Hello Philip

It can be change to the following (already done for the next TivaWare release)

#if defined(TARGET_IS_TM4C129_RA1) || \
defined(TARGET_IS_TM4C129_RA2)
#define ROM_UpdateEMAC \
((void (*)(uint32_t ui32Clock))ROM_EMACTABLE[71])
#endif

Regards
Amit

0 Dinesh K M over 9 years ago in reply to Amit Ashara

Intellectual 380 points

Hello Amit,

We have installed the following versions of CCS & TI RTOS

1. CCS : ccs_setup_6.1.0.00104.exe

2. TI RTOS : tirtos_tivac_setupwin32_2_14_00_10.exe

Regards,

Dinesh

0 Amit Ashara over 9 years ago in reply to Dinesh K M

TI__Guru**** 244400 points

Hello Dinesh

And what is the version of TivaWare in the RTOS?

Regards
Amit

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Ethernet interface to ROM boot loader and Flash boot loader source for the TM4C1294NCPDT