Programming flash memory on 56F8367 (MC56F8367VPYE) using third-party USB-JTAG converter

Vanish — Fri, 15 Aug 2025 15:15:29 GMT

Hello all,

I don't have an official USB-JTAG converter; instead, I have an FT4232H chip, which has USB-JTAG support. Using it, I can't program the flash memory of the MC56F8367VPYE. The problem is incompatibility between this converter and CodeWarrior. I only need to upload an S-record file to the chip.

I used OpenOCD software to connect to the MCU. I even made a flash dump, but I can't upload anything new. I think the problem now is getting access to the CPU with control over flash updating.

If someone has an OpenOCD config for the 56F8367, please send it. Otherwise, if someone knows a start-up command sequence to get access to edit the flash memory, please share it. Maybe it will help me to write the correct config file.

My raw config: set _CHIPNAME mc56f8367 set _ENDIAN little set _CPUTAPID 0x01d6d01d adapter speed 800 jtag newtap $_CHIPNAME chp -irlen 8 -ircapture 1 -irmask 0x03 -expected-id $_CPUTAPID jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 1 -irmask 0x03 -disable -expected-id $_CPUTAPID set _TARGETNAME $_CHIPNAME.cpu target create $_TARGETNAME dsp5680xx -endian $_ENDIAN -chain-position $_TARGETNAME jtag configure $_CHIPNAME.chp -event setup " jtag tapenable $_TARGETNAME poll off " jtag configure $_TARGETNAME -event tap-enable " irscan $_CHIPNAME.chp 0x05; drscan $_CHIPNAME.chp 4 0x02; jtag tapdisable $_CHIPNAME.chp; " jtag configure $_CHIPNAME.chp -event tap-enable " irscan $_TARGETNAME 0x08; drscan $_TARGETNAME 4 0x1; jtag tapdisable $_TARGETNAME; " set _FLASHNAME $_CHIPNAME.flash flash bank $_FLASHNAME dsp5680xx_flash 0 0 2 1 $_TARGETNAME

Thanks.

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Programming flash memory on 56F8367 (MC56F8367VPYE) using third-party USB-JTAG converter

Hello all,