Tm4c129dncpdt: Lm flash programmer not communicating to tiva eval board in bootloader mode

Rakesh Muralidharan

Part Number: TM4C129DNCPDT
Other Parts Discussed in Thread: EK-TM4C1294XL

I am using tiva tm4c129veval board ....i loaded bootdemo1 example....using uart0 here i try to burn boot image hello.bin...i am using lm flash programmer at host side.....

The programmer returns error at the initial state ..... what could be the reason??...bootdemo1 example uses bootloader in rom....it initializes uart0 to 115200 baud rate.....

I have ensured execution of updateuart() api....

I hav configured lm programmer to serial mode....

What could go wrong???

over 9 years ago

0 Bob Crosby over 9 years ago

TI__Guru 72500 points

Are you using the EK-TM4C1294XL Launchpad? Did you use Code Composer to program the "C:\ti\TivaWare_C_Series-2.1.4.178\examples\boards\ek-tm4c1294xl\boot_demo1\ccs\Debug\boot_demo1.out" file? That project does not have the stack pointer and reset vector at location 0x00000000 and 0x000004. It must be started with Code Composer.

0 Rakesh Muralidharan over 9 years ago in reply to Bob Crosby

Expert 2810 points

Eval board i use is DK-TM4C129X.....yes i use CCS and load outfile ...i single step through the code until rom_updateuart api is executed...i guess from here on the board is ready to accept flash image from host.....

0 Bob Crosby over 9 years ago in reply to Rakesh Muralidharan

TI__Guru 72500 points

"boot_demo1" was built for the EK-TM4C1294XL Launchpad. Have you tried using "C:\ti\TivaWare_C_Series-2.1.4.178\examples\boards\dk-tm4c129x\boot_demo_uart"? This one was built for the DK-TM4C129X.

0 Rakesh Muralidharan over 9 years ago in reply to Bob Crosby

Expert 2810 points

bootdemo1 was a typo I was working on ""boot_demo_uart""....

The issue is now gone....I closed and reopened CCS rebuilt the same code .....Now I am able to flash *.bin images using LM flash programmer ... Thank you for your help....

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Tm4c129dncpdt: Lm flash programmer not communicating to tiva eval board in bootloader mode