Worked for 10 minutes with new chips and then stopped... about stc_diyclock HOT 3 CLOSED

ds1302 getting hot, I suspect either something wrong with the wiring/assembly of the board, or it's some hardware variant which has different DS1302 to MCU connections than any of the current ones in software. Do you have a schematic of your unit? Can you compare it to the variants in hwconfig.h

from stc_diyclock.

ds1302 getting hot, I suspect either something wrong with the wiring/assembly of the board, or it's some hardware variant which has different DS1302 to MCU connections than any of the current ones in software. Do you have a schematic of your unit? Can you compare it to the variants in hwconfig.h

Now I know what was the problem - i used a bad flux. It turned out to be too active and even after multiple washes it stayed under the ICs and corroded the contact joints. I bought assembled another similar kit and now it's perfect 🙌🏻.

P.S.: is there a way to retrieve an original firmware from the supplied chip? Just as a backup. I have a USB-TTL cable and all the necessary software, but a hint would be greatly appreciated

from stc_diyclock.

is there a way to retrieve an original firmware from the supplied chip?

There is no known way of retrieving firmware from the STC chips. It's intentionally a programming only uart interface.

from stc_diyclock.