EK-TM4C1294XL: How to trigger ROM based serial boot loader on TM4C1294 ?

Part Number:EK-TM4C1294XL

Hello,

I have EK-TM4C1294XL board with Tiva TM4C1294. I would like to trigger the ROM based serial loader that is supposed to present on the chip from the factory. Here are the steps.

1. Use LM Flash programmer, switch to ICDI interface, Flash > Erase entire. Power cycle

2. Switch to Serial UART COM8 interface, Program > select bin file blinky.bin, Address offset = 0x00

3. Click program. Error > Failed to establish comm with target.

Please advise how to troubleshoot this problem.

Regards !