Cyberpower UPS CP1500EPFCLCD repair

[Simonv92]

Hi all!
I have a Cyberpower ups CP1500EPFCLCD (europe version) with a damaged cpu (probabily after some problems with the usb com port).
The cpu on the board is an ST STM32F102C8T6, but I don't have the source code to program a new one.
There's a way to obtain the binary code for the cpu? Or does any one of you have one unit to read the code?
Thank you very much!
Best regards

Simone

[coromonadalix]

it depends if someone has the same ups and can or could read the mcu  if it is not locked from being read 

and for sure   you will never get a source code

your chances are pretty much zero at this point, only time will tell       

[fmashockie]

What do you mean the CPU is damaged?  I think what you're asking is, is it possible to flash the chip - flashing is the process of reading a programmed microcontroller (MCU) and taking that programming code to program another MCU.  The STM32 series is typically pretty easy to flash.  There are a lot of resources on how to do it.  Of course as long as it is not read-protected.  You won't know until you try (unless someone else has already tried with this make/model UPS).

I ask what you mean by damage because it is still possible to flash a faulty MCU depending on where the fault is.  For example, I've flashed MCUs successfully that have a couple bad IO pins.  But obviously if the whole chip is dead, you're not going to be able to perform this procedure.

Here's a video I did on flashing a STM32 series MCU utilized in the APC BR1500G UPS.  I go through how to flash the MCU using STM's free software and a UART-USB cable. As you can see, APC did not read-protect their MCUs for this model UPS.  You'd be surprised how many companies don't.  Good luck!

[coromonadalix]

oh  if they haven't locked it   good for the OP   

just grab a cheap programmer interface  and maybe in time, someone may or will post  the mcu content ...