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Topics - grutozoid

#1
I'm able to connect, program part but when I want to verify, impossible because security 2 is set, which is normal for me...
Normally I dont do "verify" as I use "erase block used by hex file" and I also use "set security bit 2" which renders further reading impossible.
But when I realized that nothing worked after reset, even  simple led toggle, I'd try to erase all flash to reset security bits to be able to "verify"...
When I try to "erase all Flash+security", flash seems to be erased but not security and I get a message after a while: "operation failed erasing device"

Scope on TX/RX shows normal attemps when erasing or programming.

I also could read signature (15 C2 89), security bits, etc...

Psen and reset are operating using DTR and RTS as specified, ALE, P2.6 and P2.7 are pulled-up by 10k...

I'm using FM Version 3.50.197
8051/XA Driver Version 2.31.196
ARM Driver Version 1.23.196

Any ideas?

My next step is to try with a brand new one but a QFP44 is very dull to replace...

Thank's

Louis

After chip change, it work's... but I will not secure device until last rev done... anyway forget about that!