[APM32F4] 这里哪个是编码器功能

#include "main.h"

#include "Board.h"



/* Private includes *******************************************************/



/* Private macro **********************************************************/



/* printf function configs to USART2*/

#define DEBUG_USART  USART2



#define DIV 167



/* Private typedef ********************************************************/



/* Private variables ******************************************************/



uint16_t encoderNum = 0;

volatile uint32_t tick = 0;



/* Private function prototypes ********************************************/



/* External variables *****************************************************/



/* External functions *****************************************************/



/*!

 * [url=home.php?mod=space&uid=247401]@brief[/url]       Main program

 *

 * @param       None

 *

 * @retval      None

 */

int main(void)

{

    GPIO_Config_T    gpioConfig;

    USART_Config_T   usartConfig;

    TMR_BaseConfig_T baseConfig;

    TMR_ICConfig_T   ICConfig;



    BOARD_LEDInit(LED2);

    BOARD_LEDOff(LED2);



    /* USART2 Tx PA2 Rx PA3 */

    usartConfig.baudRate = 115200;

    usartConfig.mode     = USART_MODE_TX_RX;

    usartConfig.hardwareFlow = USART_HARDWARE_FLOW_NONE;

    usartConfig.parity   = USART_PARITY_NONE;

    usartConfig.stopBits =  USART_STOP_BIT_1;

    usartConfig.wordLength = USART_WORD_LEN_8B;

    BOARD_COMInit(COM2,&usartConfig);



    /* Enable GPIOA Periph Clock */

    RCM_EnableAHB1PeriphClock(RCM_AHB1_PERIPH_GPIOA);



    /* Config GPIO */

    gpioConfig.pin = GPIO_PIN_8 | GPIO_PIN_9;

    gpioConfig.mode = GPIO_MODE_AF;

    gpioConfig.speed = GPIO_SPEED_100MHz;

    gpioConfig.otype = GPIO_OTYPE_OD;

    gpioConfig.pupd = GPIO_PUPD_UP;

    GPIO_Config(GPIOA,&gpioConfig);



    /* Config GPIOA  Alernate Function for TMR1  */

    GPIO_ConfigPinAF(GPIOA,GPIO_PIN_SOURCE_8,GPIO_AF_TMR1);

    GPIO_ConfigPinAF(GPIOA,GPIO_PIN_SOURCE_9,GPIO_AF_TMR1);



    /* Enable TMR1,TMR2 Periph Clock */

    RCM_EnableAPB2PeriphClock(RCM_APB2_PERIPH_TMR1);

    RCM_EnableAPB1PeriphClock(RCM_APB1_PERIPH_TMR2);



    /* Config TMR1 */

    baseConfig.clockDivision = TMR_CLOCK_DIV_1;

    baseConfig.countMode = TMR_COUNTER_MODE_UP;

    baseConfig.division = DIV;

    baseConfig.period = 0x0008;

    baseConfig.repetitionCounter = 0;

    TMR_ConfigTimeBase(TMR1, &baseConfig);



    /* Config TMR2 */

    baseConfig.clockDivision = TMR_CLOCK_DIV_1;

    baseConfig.countMode = TMR_COUNTER_MODE_UP;

    baseConfig.division = DIV;

    baseConfig.period = 999;

    baseConfig.repetitionCounter = 0;

    TMR_ConfigTimeBase(TMR2, &baseConfig);



    /* Encoder */

    TMR_ConfigEncodeInterface(TMR1,TMR_ENCODER_MODE_TI1,TMR_IC_POLARITY_RISING,TMR_IC_POLARITY_RISING);



    /* Input Capture */

    ICConfig.channel = TMR_CHANNEL_1;

    ICConfig.polarity = TMR_IC_POLARITY_RISING;

    ICConfig.selection = TMR_IC_SELECTION_DIRECT_TI;

    ICConfig.prescaler = TMR_IC_PSC_1;

    ICConfig.filter = 0;

    TMR_ConfigIC(TMR1,&ICConfig);



    ICConfig.channel = TMR_CHANNEL_2;

    TMR_ConfigIC(TMR1,&ICConfig);

    

    /* Counter */

    TMR_ConfigCounter(TMR1,0x0004);

    TMR_ClearStatusFlag(TMR1,TMR_FLAG_UPDATE);

    TMR_ClearStatusFlag(TMR2,TMR_FLAG_UPDATE);



    /* Enable TMR1,TMR2 Interrupt */

    TMR_EnableInterrupt(TMR1, TMR_INT_UPDATE);

    TMR_EnableInterrupt(TMR2, TMR_INT_UPDATE);

    NVIC_EnableIRQRequest(TMR1_UP_TMR10_IRQn, 0, 0);

    NVIC_EnableIRQRequest(TMR2_IRQn, 0, 0);



    /* Enable TMR1,TMR2 */

    TMR_Enable(TMR1);

    TMR_Enable(TMR2);



    while(1)

    {

        BOARD_LEDToggle(LED2);

        Delay();

    }

}