A tool for Miniware MDP-P906 Power Supply

[leommxj]

Hi, all.
I bought one MDP-P906 about one year ago, it works well and really portable.
But there seems no official way to control it through software/script on computer, only the M01 display module or hardcoded in txt file (which is quite useless to me). So, I did some reverse engineering and coding work for them
The protocol is trivial. Now I can control it through PC and a nrf24 adapter.
If anyone interesting, go see https://github.com/leommxj/mdp_commander

[Crazypaqer]

Hello, can you by any chance download full firmware from unit through swd over prog connector? I have same unit with fried cpu, so i replaced cpu, but official firmware does not contain bootloader, and all my miniware products have different versions and not compatible.

[leommxj]

Hello, can you by any chance download full firmware from unit through swd over prog connector? I have same unit with fried cpu, so i replaced cpu, but official firmware does not contain bootloader, and all my miniware products have different versions and not compatible.

Hi Crazypaqer, is there any way i can attach this unit without disassembly? I have read about TS100 have SWDIO/SWCLK on the usb port, tried with p906, didn't get lucky.

[Crazypaqer]

Hello,
Yes you can access swd through prog connector. But you need a cable which comes with MDP-M01 screen and make a custom cabe from mini usb to swd connector of your debugger / programmer.

[Crazypaqer]

My cable  setup is in attachment. Target MCU is GD32F303VCT6.

[leommxj]

I think I'm doing the same thing with a usb to pin adapter and connect D+/D- to SWDIO/SWDCLK to my h7tool which work as a debugger.
the type-c port and 2.5mm D+/D- are shorted so it should work on both ports.
Maybe something went wrong when I was doing it. I'll try again when I have time.

[Crazypaqer]

It may require to go in dfu mode first, try plugging cable with button pressed.

[leommxj]

Hello, can you by any chance download full firmware from unit through swd over prog connector? I have same unit with fried cpu, so i replaced cpu, but official firmware does not contain bootloader, and all my miniware products have different versions and not compatible.

After some trying, I manage to attach the unit with 3.3v supply directly to the 2.5mm port, in "USB MODE". Anyway, here is the flash dump from 0x08000000 to 0x08040000, i believe the bootloader you want are before 0x08008000, good luck.
 20240105_010828_read_0x08000000_256kB.7z (74.98 kB - downloaded 21 times.)

[Crazypaqer]

Thanks a lot!!!

[Crazypaqer]

It seems that miniware changed firmware protection for this unit. Can you also provide device id from your unit, it should be at address 0x1FFFF7E8 , 0x1FFFF7EC, 0x1FFFF7F0 as 3 32bit registers. They somehow correlate to data recorded just before end of bootloader .

[leommxj]

Code: [Select]

pyocd> read32 0x1FFFF7E8
1ffff7e8:  05d0ff30                               |...0|
pyocd> read32 0x1FFFF7EC
1ffff7ec:  35374742                               |57GB|
pyocd> read32 0x1FFFF7F0
1ffff7f0:  57218610                               |W!..|