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alejoseb / Modbus-STM32-HAL-FreeRTOS

Modbus TCP and RTU, Master and Slave for STM32 using Cube HAL and FreeRTOS
GNU Lesser General Public License v2.1
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Getting compiler error related to macro expansion #104

Closed femto-code closed 2 months ago

femto-code commented 2 months ago

I am using the HAL for an embedded application with the STM32 L4XX device family.

When including the Modbus library in the project, I am getting the following compiler error:

In file included from ../Core/Inc/stm32l4xx_hal_conf.h:262,
                 from ../Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal.h:29,
                 from ../Core/Inc/main.h:30,
                 from ../Middlewares/Third_Party/Modbus/Src/Modbus.c:13:
../Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_gpio.h:89:47: error: expected ')' before numeric constant
   89 | #define GPIO_PIN_6                 ((uint16_t)0x0040)  /* Pin 6 selected    */
      |                                               ^~~~~~
../Core/Inc/main.h:74:16: note: in expansion of macro 'GPIO_PIN_6'
   74 | #define EN_Pin GPIO_PIN_6
      |                ^~~~~~~~~~
../Middlewares/Third_Party/Modbus/Inc/Modbus.h:184:18: note: in expansion of macro 'EN_Pin'
  184 |         uint16_t EN_Pin;  //!< flow control pin: 0=USB or RS-232 mode, >1=RS-485 mode
      |                  ^~~~~~

I could not find any invalid uses of the said macro. Thanks for any help with this issue!

alejoseb commented 2 months ago

Hi, this is not related to the library at all. It could be related to a small typo in your code somewhere else. It's common that the compiler complains pointing to macros, but that is not quite accurate.