STMCUBE mx - STM32F051 IAR EWARM tool chain

[Duggan.Robert]

Posted on July 25, 2015 at 04:31

I am just getting started with the Cortex (and C.)

I would like to access an entire GPIO port but cannot find a way to address the port(GPIOF.)  I see the HAL functions for addressing the bits but not the entire port.

Here is the code and error message:

  const uint16_t MotorDriveStateTable[8]={0x0040,0x0060,0x0020,0x00A0,0x0080,0x0090,0x0010,0x0050};

  

  uint16_t MotorDriveStateCount;

  

  /* Infinite loop */

  while (1)

  {

    /*EXPERIMENTAL CODE  */

    

      HAL_GPIO_TogglePin(GPIOF, GPIO_PIN_4);

(error)      *GPIOF &= 0x0ff0f;

(error)      *GPIOF |= MotorDriveStateTable[MotorDriveStateCount];

      MotorDriveStateCount++;

    

  }/*end while (1) */

-Error[Pe031]: expression must have integral type 

Would any one  be willing to help?

[Tesla DeLorean]

Posted on July 25, 2015 at 19:29

GPIOF->ODR &= 0x0ff0f;

GPIOF->ODR |= MotorDriveStateTable[MotorDriveStateCount];

[Duggan.Robert]

Posted on July 25, 2015 at 22:44

Thank you for the lesson Clive.

I, finally, found the port definitions in stm32f051x8.h.

/**

  * @brief General Purpose I/O

  */

typedef struct

{

  __IO uint32_t MODER;        /*!< GPIO port mode register,                                  Address offset: 0x00 */

  __IO uint16_t OTYPER;       /*!< GPIO port output type register,                           Address offset: 0x04 */

  uint16_t RESERVED0;         /*!< Reserved,                                                                 0x06 */

  __IO uint32_t OSPEEDR;      /*!< GPIO port output speed register,                          Address offset: 0x08 */

  __IO uint32_t PUPDR;        /*!< GPIO port pull-up/pull-down register,                     Address offset: 0x0C */

  __IO uint16_t IDR;          /*!< GPIO port input data register,                            Address offset: 0x10 */

  uint16_t RESERVED1;         /*!< Reserved,                                                                 0x12 */

  __IO uint16_t ODR;          /*!< GPIO port output data register,                           Address offset: 0x14 */

  uint16_t RESERVED2;         /*!< Reserved,                                                                 0x16 */

  __IO uint16_t BSRRL;        /*!< GPIO port bit set/reset low register,   Address offset: 0x18 */

  __IO uint16_t BSRRH;        /*!< GPIO port bit set/reset high register, Address offset: 0x1A */

  __IO uint32_t LCKR;         /*!< GPIO port configuration lock register,                    Address offset: 0x1C */

  __IO uint32_t AFR[2];       /*!< GPIO alternate function low register,                Address offset: 0x20-0x24 */

  __IO uint16_t BRR;          /*!< GPIO bit reset register,                                  Address offset: 0x28 */

  uint16_t RESERVED3;         /*!< Reserved,                                                                 0x2A */

}GPIO_TypeDef;

and then:

#define GPIOF               ((GPIO_TypeDef *) GPIOF_BASE)