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This will Hopefuly solve all ds89c420 /30/40/50 serial baud rate problems. I made this program which calculates all possible baud rates and errors so you can select the best available.
Well, it worked fine, managed to connect to the loader successfully. I did however make use of the HC125N chip i got so i dont have to manually pull-up/down the right pins to enter the bootloader mode.
Thanks a lot!!!,,,,,u really saved me a lot of trouble :o
Iv got an exam the day after tomorrow, but as soon as thats over, ill be wiring it up and testing it out. Once iv done that, ill post how it went.
I've got myself a 16Mhz crystal, so ill be able to put that on 2* multiplyer to...
programming ds89c420 via serial
How do I set up the serial programming circuit for the DS89C420. The diagram they give you in manual is very basic, it does not tell me enougth information. I got the HC125 and MAX232 chips and a 5V voltage regulator.
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