Other Parts Discussed in Thread: EK-TM4C1294XL
I am using a tm4c1294ncpdt and attempting to load an initial image through SSI0 using the ROM boot loader after powering the card containing the processor. It fails because the DOWNLOAD command never returns ACK or NAK. Both the PING and GET STATUS commands work correctly. If I program an image into the MCU )using CCS IDE or J-Link) that calls ROM_UpdateSSI0() it works fine.
I changed the DOWNLOAD command to an ILLEGAL command and I got an ACK and the GET STATUS returned ILLEGAL COMMAND. I have changed the size and the address in the DOWNLOAD and neither changes the result. I sent a SEND DATA command without a DOWNLOAD command I and get an ACK with the GET STATUS of ILLEGAL ADDRESS.