Mikroelektronika Mini M4 STM32 issues #2143

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1. fpistm commented on Oct 13, 2023

   

   fpistm

   on Oct 13, 2023

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   The USB CDC have to be enabled to allow restart in HID bootloader. You have to flash it the first time with USB enabled then it should be OK. Else probably it is not compatible.
2. ITstreet1 commented on Oct 13, 2023

   

   ITstreet1

   on Oct 13, 2023

   Last edited by ITstreet1

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   Tried all options for USB support. All I get is

   Sketch uses 26228 bytes (2%) of program storage space. Maximum is 1048576 bytes.
   Global variables use 5036 bytes (3%) of dynamic memory, leaving 126036 bytes for local variables. Maximum is 131072 bytes.

   +-----------------------------------------------------------------------+
   | HID-Flash v2.2.1 - STM32 HID Bootloader Flash Tool |
   | (c) 2018 - Bruno Freitas http://www.brunofreitas.com |
   | (c) 2018-2019 - Vassilis Serasidis https://www.serasidis.gr |
   | Customized for STM32duino ecosystem https://www.stm32duino.com |
   +-----------------------------------------------------------------------+

   Trying to open the [COM9]...
   Unable to open the [COM9]
   Searching for [1209:BEBA] device...
   ##########
   Error - [1209:BEBA] device is not found :(> Searching for [COM9] ...
   Finish
   the selected serial port > Finish
   does not exist or your board is not connected

   And this no matter if I try to enter the bootloader with a button or not.

   PS
   This is just a Blink sketch
3. fpistm commented on Oct 13, 2023

   

   fpistm

   on Oct 13, 2023

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   What is COM9?
   You have to start the Serial at least in the Setup. Else how do you want reset in HID mode?
4. ITstreet1 commented on Oct 13, 2023

   

   ITstreet1

   on Oct 13, 2023

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   There is nothing on COM9, nor is anything selected as a COM PORT option.

   void setup() {
     Serial.begin(9600);
     pinMode(PC12, OUTPUT);
   }
   void loop() {
     digitalWrite(PC12, HIGH);
     delay(1000);
     digitalWrite(PC12, LOW);
     delay(1000);
   }
   

   I get the same message as above. For USB support tried both CDC options. Nothing. Do I have to enable USART or something else?
5. stm32duino

   locked and limited conversation to collaborators on Oct 16, 2023
6. fpistm

   converted this issue into a discussion #2144 on Oct 16, 2023