Can't use ArduinoModbus with STM32 Blue Pill (Maple Mini clone)

[requeijaum]

Please, before reporting any issue

• Make sure you are using the latest Arduino_Core_STM32 version.
  https://github.com/stm32duino/Arduino_Core_STM32/releases/latest
• Make sure the issue is not already reported/fixed on GitHub or discussed on the stm32duino forum
• Submit a GitHub issue only for reporting a problem related to the Arduino_Core_STM32.
• Avoid to submit a GitHub issue for project troubleshooting.

Any questions/feedback/suggestions should be discussed on the stm32duino forum:

• questions on the STM32 Core
• bugs/enhancements on the STM core: Bugs and enhancements

When reporting any issue, please try to provide all relevant information:

Describe the bug
A clear and concise description of what the bug is.

Can't use ArduinoModbus with STM32 Blue Pill (Maple Mini clone).

To Reproduce
Complete source code which can be used to reproduce the issue. Please try to be as generic as possible (no extra code, extra hardware,...)

Tried ArduinoModbus's sketch examples and a source-code of an already working project using Arduino with ESP32 (DOIT v1 board) and Arduino UNO R3 (ATM328P-PU).

Steps to reproduce the behavior:
**

1. Plug
2. Press compile
3. See error
   **

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: Windows 10 v2004
• Arduino IDE version: 1.8.13
• STM32 core version: 2020.12.26
• Tools menu settings if not the default: I don't know what's this.
• Upload method: STLink v2 (clone)

Board (please complete the following information):

• Name: Blue Pill
• Hardware Revision: 64K Flash
• Extra hardware used if any: Generic RS-485 transceiver module with MAX485.

Additional context

See related issue on ArduinoModbus.
arduino-libraries/ArduinoModbus#47

[fpistm]

Hi @requeijaum

Regarding the core version you specified:

STM32 core version: 2020.12.26

and the log file available in ArduinoModBus library

C:\Users\rafae\AppData\Local\Arduino15\packages\stm32duino\hardware\STM32F1\2020.12.26

You do not use the STM32 core but Roger's core:
https://github.com/rogerclarkmelbourne/Arduino_STM32

So you should open an issue there or in the forum: https://www.stm32duino.com

Note that the lib builds fine with this core but not tested:

Sketch uses 33324 bytes (3%) of program storage space. Maximum is 1048576 bytes.
Global variables use 1304 bytes (1%) of dynamic memory, leaving 97000 bytes for local variables. Maximum is 98304 bytes.

[requeijaum]

Thanks for the quick feedback @fpistm !