Compiler/TMS470MF04207: TMS470MF04207 how to jump program to application in bootloader

vincent woo

Tool/software: TI C/C++ Compiler

I have a bootloader in sector0 at bank1 ,the application in sector3 at bank0,use function pointor jump to 0x10000,then goto usage_fault handler.

How to jump to application without any fault.

over 8 years ago

0 Bob Crosby over 8 years ago

TI__Guru 72500 points

                ((void (*)(void))0x10000)();

0 vincent woo over 8 years ago in reply to Bob Crosby

Prodigy 50 points

yeah, but when microcontrollor run to ((void (*)(void))0x10000)(); then jump to bus_fault funcation.I do not know where is wrong.

the cmd file of the application project ,vector file flash0 is modify 0x10000 .this way is right or not?

0 Bob Crosby over 8 years ago in reply to vincent woo

TI__Guru 72500 points

Sorry, I forgot. The M3 runs in Thumb2 mode so the address must be odd. Try:

((void (*)(void))0x10001)();

0 vincent woo over 8 years ago in reply to Bob Crosby

Prodigy 50 points

We used 0x10001 can jump to 0x10000 address, but the second debug, debuger can not easer flash.in the ccs error info is

CortexM3_0: GEL Output: Memory Map Setup for Flash @ Address 0x0CortexM3_0: GEL Output: Memory Map Setup for Flash @ Address 0x0 due to System Reset
CortexM3_0: Can't Run Target CPU: (Error -1268 @ 0x1090001) Device is locked up in Hard Fault or in NMI. Reset the device, and retry the operation. If error persists, confirm configuration, power-cycle the board, and/or try more reliable JTAG settings (e.g. lower TCLK). (Emulation package 6.0.407.3)
CortexM3_0: File Loader: Memory write failed: Could not read 0x080001E8: execution state prevented access
CortexM3_0: GEL: File: C:\Users\Administrator\workspace_v6_2\xxxx_v0.1\Debug\xxxx_v0.1.out: Load failed.

We have two microcontrollor tip this error info with debug,the other can normal debug. We want to know how to solution it.

0 Bob Crosby over 8 years ago in reply to vincent woo

TI__Guru 72500 points

Please clarify which devices you can no longer erase. Ones with 0x10001 or ones with 0x10000.

0 vincent woo over 8 years ago in reply to Bob Crosby

Prodigy 50 points

I have two bad mcu, one is jump to 0x10008 with old experiment, one is jump to 0x10001 with new experiment. several times program can normal running.but the ten times or more program mcu come out can not erase.

0 Bob Crosby over 8 years ago in reply to vincent woo

TI__Guru 72500 points

I am sorry, but I still am unclear. Do you mean that the boards cannot be erased by JTAG, or that the bootloader is not working? Do you mean that two boards cannot be erased sometimes, or that 10 boards are now no longer usable because they cannot be erased at all?

0 Bob Crosby over 8 years ago in reply to Bob Crosby

TI__Guru 72500 points

Hi Vincent,
I have not heard back from you. I assume you have resolved this issue. If not, please just post a reply, or create a new thread if this thread locks because of timeout.

0 vincent woo over 8 years ago in reply to Bob Crosby

Prodigy 50 points

Thank you very much, bootloader can correct jump application program,and interrupt can correct jump,the few bad mcu have changed.

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Compiler/TMS470MF04207: TMS470MF04207 how to jump program to application in bootloader