| Electronics > Projects, Designs, and Technical Stuff |
| Reprogramming an ST72F324J4T6 in circuit? |
| (1/1) |
| ledtester:
I've got a late 90s/early 2000s consumer device which uses an ST72F324J4T6 mcu, and I'm wondering what options there are to reprogram it in-circuit. My research indicates the ST7-series is obsolete by now, and the programmers for it (like the ST7-STICK) are either unavailable for very expensive. I did find this open source project: http://www.spen-soft.co.uk/ but the firmware is written "in ST7 assembly" for an ST72F264 - talk about a chicken and egg problem! Some questions: - from the pic of the PCB, does it look like the ST72F can be reprogrammed in-circuit? After all, there is "ICCDATA" and "ICCCLK" silkscreened on the board. OTOH, I don't even know if the mcu is locked or not. - I'm thinking of translating the spen-soft project firmware to a more modern mcu platform. Any recommendations for an mcu choice which might make the job easier - i.e. something which is architecturally similar? Maybe an STM8 Discovery board? - Any other ideas for talking to the ST72F in-circuit? |
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