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Hi
I am currently in the middle of a project with the 8051 and i download my hex files onto the uC via Atmel's Filp software.
For some reason today the flip software just stopped working, giving me 'Timerd out' everytime i try to download to the uC.
The programming secquence on the uC that i use is to press RST and /PSEN together, before releasing RST first then /PSEN.
ANy idea why it stopped working, What voltage reading should i get on the /PSEN pin when its switch is pressed. My circuit on the /PSEN pin is simply a 10K resistor followed by a push button switch which is then tied to ground.
Atmel 'cable' or homebrew? any cables longer than 1m?
Erik
same thing happend to me. i succedded downloading the program only once. i'm using the following command:
-device ATOCDTARGET -hardware RS232 -port COM9 -baudrate 19200 -ocd C51 -operation memory 14 loadbuffer C:\AT89C51RE2\template\test.hex timeout 60 erase F program verify wait
all the above seems to PASS except the erase which give a timeout error