QEMU for the DR-05

This repository is an attempt at emulating the DR-05 with QEMU. It would not be possible without Mike Frysinger's Blackfin port of QEMU.

Booting

Get ADSP-BF514-ROM-V02.dxe from the VisualDSP++ software package.
Run ./patch-bootrom.rb ADSP-BF514-ROM-V02.dxe
Get a raw flash image of the firmware (with fwunpack.py). Convert it into a QCOW2 image with the following commands:
- qemu-img convert -f raw -O qcow2 DR-05_44.211.flash firmware.qcow2
- qemu-img resize firmware.qcow2 2M
Run ./boot-dr05.sh -kernel ADSP-BF514-ROM-V02.dxe.patched; Additional arguments:
- Use -d in_asm,exec,nochain,trace:bfin_reg_memory_* -singlestep to trace the executed instructions

Currently, the boot ROM will hang in _bootrom.bootkernel.dmawait.idle, waiting for the first DMA transfer to finish.