2022-05-31 02:42 PM
Hi.
I designed a custom board for STM32H7B0VBT6... But in first test ST-LINK Utility (and obviously other tools) Can not connect to the MCU.
the design is correct, soldering have no error, and the ST-Link firmware version already upgraded to V2-1.
I tried many time in all three mode with different clock speeds... but always same error:
It is noteworthy that the ST-LINK Utility even can identify the MCU:
I am using SWD mode with 4 (VDD, GND, SWCLK, SWDIO) wires.
how can I solve this?
thanks.
Solved! Go to Solution.
2022-05-31 03:48 PM
>>how can I solve this?
Stop using ST-LINK Utilities, this tool has been deprecated for several years
Use STM32 Cube Programmer
https://www.st.com/en/development-tools/stm32cubeprog.html
2022-05-31 03:48 PM
>>how can I solve this?
Stop using ST-LINK Utilities, this tool has been deprecated for several years
Use STM32 Cube Programmer
https://www.st.com/en/development-tools/stm32cubeprog.html
2022-05-31 04:21 PM
Connection mode: Under reset
Reset mode: Hardware
2022-05-31 05:06 PM
@SEMad "I am using SWD mode with 4 (VDD, GND, SWCLK, SWDIO) wires."
Wot - no RESET ?
2022-05-31 05:33 PM
Indeed. Then without NRST line the reset mode should be set to "software".
2022-06-01 12:52 AM
and without the NRST line, you won't be able to use hardware reset - eg, if software disables the SWD lines...
2022-06-01 02:54 AM
thanks.
worked perfectly.
2022-06-01 03:03 AM
I designed many many board without accessing RST pin in debugging.
you can pull up BOOT0 when software disables the SWD lines...