Re:SuperH
by braincode on Tuesday December 07, 2021 @04:36AM
(#29470604)
Which kind of debug probe did you use for it? I've been told that it's not regular OSS/OpenOCD/JTAG toolchain but something Hitachi-specific called H-UDI (proprietary JTAG extension)?
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So, it was a long time ago, and I did use a JTAG emulator/debugger called the "Partner JET:" https://www.kmckk.co.jp/eng/gigatrace_index.html
It was extremely expensive, and commercial, I'm honestly surprised I could even find a website for it.
It was extremely cool to basically scroll through memory, our hardware had an on-board FPGA that gathered waveforms from a photomultiplier tube attached to a scintillator, and when I was writing the driver for it, I could watch the memory in real-time with the debugger changing.
Setting initial values of memory to something like 0xDEADBEEF, and using this thing, was an incredibly powerful debugging strategy, especially when dealing with hardware.