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)?
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.
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.