STM32CubeProgrammer connection over UART error

[ERazz.3]

Hi, I've some problem using SMT32CubeProgrammer.

i am trying to connect via uart to micro stm32g491 but i receive some error messages.

15:21:34:034 : RTS low

 15:21:34:034 : DTR low

 15:21:34:171 : Serial Port COM15 is successfully opened.

 15:21:34:172 : Port configuration: parity = even, baudrate = 115200, data-bit = 8,           stop-bit = 1.0, flow-control = off

 15:21:34:172 : No Init bits value is : 0 

 15:21:34:172 : Sending init command: 

 15:21:34:175 : byte 0x7F sent successfully to target

 15:21:34:176 : Wait ends after 1 loop, dataready = 1, delay = 0

 15:21:34:176 : Received response from target: 0x79

 15:21:34:191 : Activating device: OK

 15:21:34:192 : Sending GetID command and its XOR:

 15:21:34:192 : byte 0x02 sent successfully to target

 15:21:34:192 : byte 0xFD sent successfully to target

 15:21:34:192 : Wait ends after 1 loop, dataready = 1, delay = 0

 15:21:34:192 : Received response from target: 0x79

 15:21:34:192 : Received 4 data bytes from target : 0x03047b7b

 15:21:34:194 : Chip ID: 0x47B 

 15:21:34:195 : Sending Get command and its XOR:

 15:21:34:195 : byte 0x00 sent successfully to target

 15:21:34:195 : byte 0xFF sent successfully to target

 15:21:34:195 : Wait ends after 1 loop, dataready = 1, delay = 0

 15:21:34:195 : Received response from target: 0x7b

 15:21:34:196 : Error: GET command not acknowledged!

 15:21:34:197 : Reemission of Get command

 15:21:34:197 : Sending Get command and its XOR:

 15:21:34:197 : byte 0x00 sent successfully to target

 15:21:34:214 : byte 0xFF sent successfully to target

 15:21:34:214 : Received response from target: 0x1b

 15:21:34:215 : Error: GET command not acknowledged!

 15:21:34:218 : Reemission of Get command

 15:21:34:218 : Sending Get command and its XOR:

 15:21:34:222 : byte 0x00 sent successfully to target

 15:21:34:224 : byte 0xFF sent successfully to target

 15:21:34:226 : Received response from target: 0x33

 15:21:34:228 : Error: GET command not acknowledged!

 15:21:34:328 : UART PORT CLOSE 

but if I try to communicate with the embedded bootloader of stm32 using another software (for example minicom or docklite) I can communicate correctly.

here are some messages on the serial:

09/03/2022 14:37:50.788 [TX] - 7F

09/03/2022 14:37:50.804 [RX] - 79

09/03/2022 14:37:51.966 [TX] - 02 FD

09/03/2022 14:37:51.971 [RX] - 7A 03 04 7B 3F 79

09/03/2022 14:37:53.091 [TX] - 01 FE

09/03/2022 14:37:53.094 [RX] - 79 33 00 00 7B 3F

09/03/2022 14:37:53.787 [TX] - 02 FD

09/03/2022 14:37:53.793 [RX] - 7B 3F 03 04 7B 7B 3F

09/03/2022 14:37:54.490 [TX] - 01 FE

09/03/2022 14:37:54.497 [RX] - 79 71 00 00 7B 3F

why can't i use stm32cubeprogrammer software?

[Houda GHABRI]

Hi @ERazz.3 ,

Are you using the last CubeProgrammer version 2.10.0.? If not can you please switch to this version which contain many enhancement related to UART connection?

Houda

[ERazz.3]

i've installed stm32cubeprogrammer 2.10.0.

it seem to be the same...

here the log.

14:29:04:255 : Activating device: OK

14:29:04:256 : Board : --

14:29:04:256 : Sending GetID command and its XOR:

14:29:04:257 : byte 0x02 sent successfully to target

14:29:04:260 : byte 0xFD sent successfully to target

14:29:04:260 : Wait ends after 1 loop, dataready = 1, delay = 0

14:29:04:306 : Received response from target: 0x79

14:29:04:306 : Received 4 data bytes from target : 0x01047b79

14:29:04:307 : Chip ID: 0x47B

14:29:04:307 : Sending Get command and its XOR:

14:29:04:309 : byte 0x00 sent successfully to target

14:29:04:312 : byte 0xFF sent successfully to target

14:29:04:312 : Wait ends after 1 loop, dataready = 1, delay = 0

14:29:04:312 : Received response from target: 0x6f

14:29:04:313 : Error: GET command not acknowledged!

14:29:04:313 : Reemission of Get command

14:29:04:313 : Sending Get command and its XOR:

14:29:04:314 : byte 0x00 sent successfully to target

14:29:04:316 : byte 0xFF sent successfully to target

14:29:04:316 : Received response from target: 0x61

14:29:04:316 : Error: GET command not acknowledged!

14:29:04:317 : Reemission of Get command

14:29:04:317 : Sending Get command and its XOR:

14:29:04:317 : byte 0x00 sent successfully to target

14:29:04:317 : byte 0xFF sent successfully to target

14:29:04:318 : Received response from target: 0xee

14:29:04:318 : Error: GET command not acknowledged!

14:29:04:341 : UART PORT CLOSE

[Houda GHABRI]

Hi @ERazz.3​ ,

Ok I will check , can you tell me if you are using CLI or GUI? If CLI command line used please.

Houda

[ERazz.3]

@Houda GHABRI​  i'm using GUI.

Thanks

[Houda GHABRI]

Hi @ERazz.3​ ,

I did same checks using NUCLEO-G491RE board and connection via UART works correctly.

I see in your traces that the Device ID is not correct :

14:29:04:306 : Received 4 data bytes from target : 0x01047b79

14:29:04:307 : Chip ID: 0x47B

The correct device ID for STM32G491  is 0x479 so tell me please if you are using an ST Board? Also send me please the Bootloader version of your chip ( value of Bootloader is in 0x1FFF6FFE address).

Houda

[Houda GHABRI]

Hi @ERazz.3​ 

The Baudrate value used during connection please?

Houda

[ERazz.3]

Hi, at address 0x1FFF6FFE I see 0xD2.

we're using our custom bord.

thanks

[ERazz.3]

Hi, 155200

[Houda GHABRI · Accepted solution]

Hi @ERazz.3​ ,

I tested with the same device you have (same Device ID and Bootloader version), it works fine on ST Board with both CubeProgrammer 2.9.0 and 2.10 version.

So I suspect a wiring issue , you can try to reduce the Baudrate and test again?

Houda