added JTAG2SWD sequence, connects under RESET as ST-LINKV 2

[FMode]

a timeout needs to be added

[Murakhovskyi]

Has anything changed regarding the connection? We connect RESET_Pin 27(NRST PIN 7 on LQFP64)
PWR_Pin 26
SWDIO_Pin 14
SWCLK_Pin 15
GND is not needed?
Sorry for the banal questions, I’m working on something a little different, but in general, I need to backup Flash and transfer it to another one of the same kind.
I am working with STM32F030CC

[Murakhovskyi]

Your option gets stuck on Send anything to start...
Send anything to start...
Send anything to start...
Starting

MCU STM32F030CCT6

[FMode]

GND is needed anytime. I did not change pins (please look into code). But I change RESET from Output to Input because my target resets in a loop. I am waiting unlimited for the reset state. As written as TODO: a wait timeout (1-5 sec?) should be implemented. So if not needed comment out the waiting. A development/build environment is needed anyway because you need to adapt the memory addresses for your needs.

[Murakhovskyi]

GND is needed anytime. I did not change pins (please look into code). But I change RESET from Output to Input because my target resets in a loop. I am waiting unlimited for the reset state. As written as TODO: a wait timeout (1-5 sec?) should be implemented. So if not needed comment out the waiting. A development/build environment is needed anyway because you need to adapt the memory addresses for your needs.

GND is needed anytime. I did not change pins (please look into code). But I change RESET from Output to Input because my target resets in a loop. I am waiting unlimited for the reset state. As written as TODO: a wait timeout (1-5 sec?) should be implemented. So if not needed comment out the waiting. A development/build environment is needed anyway because you need to adapt the memory addresses for your needs.

Good afternoon, in order to eliminate any factors that could interfere, I desoldered the chip (STM32F091) and soldered it directly to the LQFP64 legs:
64.VDD - 26 Pin PWR Pico
18.VSS - 28 Pin GND Pico
7.NRST - 27 Pin RESET Pico
46.PA13(SWDIO) - 14 Pin SWDIO Pico
49.PA14(SWCLK) - 15 Pin SWCLK Pico

In the original version of racerxdl, I have error 244 (E0), in your version, it just freezes after Starting.
I need this whole idea to resurrect the device whose MCU burned out.

Tell me what I'm doing wrong. I'll be very grateful.

[FMode]

Good afternoon, in order to eliminate any factors that could interfere, I desoldered the chip (STM32F091) and soldered it directly to the LQFP64 legs: 64.VDD - 26 Pin PWR Pico 18.VSS - 28 Pin GND Pico 7.NRST - 27 Pin RESET Pico 46.PA13(SWDIO) - 14 Pin SWDIO Pico 49.PA14(SWCLK) - 15 Pin SWCLK Pico

In the original version of racerxdl, I have error 244 (E0), in your version, it just freezes after Starting. I need this whole idea to resurrect the device whose MCU burned out.

Tell me what I'm doing wrong. I'll be very grateful.

It seems your cpu is not resetting...
Just disable my waiting for a reset. (2 while loops)

while(digitalRead(TARGET_RESET_Pin) != LOW){};  
while(digitalRead(TARGET_RESET_Pin) == LOW){};

The JTAG2SWD command does not harm you it only makes you a bit slower if you really dont need it.
I removed the driving of the RESET line to high because this can "pseudo-power" a device.