I have a custom designed board using an 8M Mini processor on it. In the process of developing with this board, I ran the mscale DDR evaluation tool successfully on it before loading any software on it. After loading some software on it and burning the fuse bank at address 0x470, I wanted to run the DDR tool again, so I set the BOOT_MODE[1:0] pins = 01 (for serial download mode) and found that I was now unable to run the DDR tool. This is output log from the tool:
"Downloading file 'bin\lpddr4_train1d_string.bin' ..Done
Downloading file 'bin\lpddr4_train2d_string.bin' ..Done
Downloading file 'bin\lpddr4_pmu_train_1d_imem.bin' ..Done
Downloading file 'bin\lpddr4_pmu_train_1d_dmem.bin' ..Done
Downloading file 'bin\lpddr4_pmu_train_2d_imem.bin' ..Done
Downloading file 'bin\lpddr4_pmu_train_2d_dmem.bin' ..Done
Downloading IVT header...Done
Downloading file 'bin\m845s_ddr_stress_test.bin' ...Done
Download is complete
Waiting for the target board boot..."
The tool just hangs after this. Note: I can go back to BOOT_MODE = 00 and the board boots just fine. Has anyone run into a similar issue? Can anyone explain what's going on here or how I can investigate this issue more? Any help would be appreciated.