TM4C1294NCPDT: some questions about TM4C1294 remote upgrade

zehua hu

Part Number: TM4C1294NCPDT

We use TM4C1294 to develop a product, which will fail sometimes when we do the remote upgrade. After the failure, we need to use JTAG for the data programming, which is very troublesome .

Is there a solution for TI, for example: the program stores two parts, if one upgrade fails, the boot can transfer another part of the program to use?

Thanks！

over 7 years ago

0 Bob Crosby over 7 years ago

TI__Guru 72500 points

Have you considered having the boot loader check a CRC before transferring execution to the application code? That way if an application code is not properly programmed due to some event such as power-loss or communication failure, the device will remain in the boot loader waiting for a new update. This section on using "CHECK_CRC" in the TivaWare Boot Loader User's Guide might be helpful:
www.ti.com/.../spmu301d.pdf

0 zehua hu over 7 years ago in reply to Bob Crosby

Intellectual 935 points

Hi Bob,
If the power loss while transferring execution to the application code, does the way works?
Thanks!

0 Bob Crosby over 7 years ago in reply to zehua hu

TI__Guru 72500 points

Since the boot loader does not transfer execution to the application program until all programming is complete a power loss at this point should not affect the subsequent execution of the application.

0 zehua hu over 7 years ago in reply to Bob Crosby

Intellectual 935 points

Hi Bob,
Thanks very much for your quick reply, I will try,then give you feedback.

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TM4C1294NCPDT: some questions about TM4C1294 remote upgrade