C++ (Cpp) HW_ENC_TIM_CLK_EN Examples

Example #1

File: encoder.c Project: JarryChou/bldc

void encoder_init_as5047p_spi(void) {
	TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;

	palSetPadMode(SPI_SW_MISO_GPIO, SPI_SW_MISO_PIN, PAL_MODE_INPUT);
	palSetPadMode(SPI_SW_SCK_GPIO, SPI_SW_SCK_PIN, PAL_MODE_OUTPUT_PUSHPULL | PAL_STM32_OSPEED_HIGHEST);
	palSetPadMode(SPI_SW_CS_GPIO, SPI_SW_CS_PIN, PAL_MODE_OUTPUT_PUSHPULL | PAL_STM32_OSPEED_HIGHEST);

	// Set MOSI to 1
#if AS5047_USE_HW_SPI_PINS
	palSetPadMode(SPI_SW_MOSI_GPIO, SPI_SW_MOSI_PIN, PAL_MODE_OUTPUT_PUSHPULL | PAL_STM32_OSPEED_HIGHEST);
	palSetPad(SPI_SW_MOSI_GPIO, SPI_SW_MOSI_PIN);
#endif

	// Enable timer clock
	HW_ENC_TIM_CLK_EN();

	// Time Base configuration
	TIM_TimeBaseStructure.TIM_Prescaler = 0;
	TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
	TIM_TimeBaseStructure.TIM_Period = ((168000000 / 2 / AS5047_SAMPLE_RATE_HZ) - 1);
	TIM_TimeBaseStructure.TIM_ClockDivision = 0;
	TIM_TimeBaseStructure.TIM_RepetitionCounter = 0;
	TIM_TimeBaseInit(HW_ENC_TIM, &TIM_TimeBaseStructure);

	// Enable overflow interrupt
	TIM_ITConfig(HW_ENC_TIM, TIM_IT_Update, ENABLE);

	// Enable timer
	TIM_Cmd(HW_ENC_TIM, ENABLE);

	nvicEnableVector(HW_ENC_TIM_ISR_CH, 6);

	mode = ENCODER_MODE_AS5047P_SPI;
	index_found = true;
}

Example #2

File: encoder.c Project: vedderb/bldc

void encoder_init_ad2s1205_spi(void) {
	TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;

	palSetPadMode(SPI_SW_MISO_GPIO, SPI_SW_MISO_PIN, PAL_MODE_INPUT);
	palSetPadMode(SPI_SW_SCK_GPIO, SPI_SW_SCK_PIN, PAL_MODE_OUTPUT_PUSHPULL | PAL_STM32_OSPEED_HIGHEST);
	palSetPadMode(SPI_SW_CS_GPIO, SPI_SW_CS_PIN, PAL_MODE_OUTPUT_PUSHPULL | PAL_STM32_OSPEED_HIGHEST);

	// Set MOSI to 1
#if AS5047_USE_HW_SPI_PINS
	palSetPadMode(SPI_SW_MOSI_GPIO, SPI_SW_MOSI_PIN, PAL_MODE_OUTPUT_PUSHPULL | PAL_STM32_OSPEED_HIGHEST);
	palSetPad(SPI_SW_MOSI_GPIO, SPI_SW_MOSI_PIN);
#endif

	// TODO: Choose pins on comm port when these are not defined
#if defined(AD2S1205_SAMPLE_GPIO) && defined(AD2S1205_RDVEL_GPIO)
	palSetPadMode(AD2S1205_SAMPLE_GPIO, AD2S1205_SAMPLE_PIN, PAL_MODE_OUTPUT_PUSHPULL | PAL_STM32_OSPEED_HIGHEST);
	palSetPadMode(AD2S1205_RDVEL_GPIO, AD2S1205_RDVEL_PIN, PAL_MODE_OUTPUT_PUSHPULL | PAL_STM32_OSPEED_HIGHEST);

	palSetPad(AD2S1205_SAMPLE_GPIO, AD2S1205_SAMPLE_PIN);	// Prepare for a falling edge SAMPLE assertion
	palSetPad(AD2S1205_RDVEL_GPIO, AD2S1205_RDVEL_PIN);		// Will always read position
#endif


	// Enable timer clock
	HW_ENC_TIM_CLK_EN();

	// Time Base configuration
	TIM_TimeBaseStructure.TIM_Prescaler = 0;
	TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
	TIM_TimeBaseStructure.TIM_Period = ((168000000 / 2 / AD2S1205_SAMPLE_RATE_HZ) - 1);
	TIM_TimeBaseStructure.TIM_ClockDivision = 0;
	TIM_TimeBaseStructure.TIM_RepetitionCounter = 0;
	TIM_TimeBaseInit(HW_ENC_TIM, &TIM_TimeBaseStructure);

	// Enable overflow interrupt
	TIM_ITConfig(HW_ENC_TIM, TIM_IT_Update, ENABLE);

	// Enable timer
	TIM_Cmd(HW_ENC_TIM, ENABLE);

	nvicEnableVector(HW_ENC_TIM_ISR_CH, 6);

	mode = RESOLVER_MODE_AD2S1205;
	index_found = true;
}

Example #3

File: encoder.c Project: vedderb/bldc

void encoder_init_abi(uint32_t counts) {
	EXTI_InitTypeDef   EXTI_InitStructure;

	// Initialize variables
	index_found = false;
	enc_counts = counts;

	palSetPadMode(HW_HALL_ENC_GPIO1, HW_HALL_ENC_PIN1, PAL_MODE_ALTERNATE(HW_ENC_TIM_AF));
	palSetPadMode(HW_HALL_ENC_GPIO2, HW_HALL_ENC_PIN2, PAL_MODE_ALTERNATE(HW_ENC_TIM_AF));
//	palSetPadMode(HW_HALL_ENC_GPIO3, HW_HALL_ENC_PIN3, PAL_MODE_ALTERNATE(HW_ENC_TIM_AF));

	// Enable timer clock
	HW_ENC_TIM_CLK_EN();

	// Enable SYSCFG clock
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);

	TIM_EncoderInterfaceConfig (HW_ENC_TIM, TIM_EncoderMode_TI12,
			TIM_ICPolarity_Rising,
			TIM_ICPolarity_Rising);
	TIM_SetAutoreload(HW_ENC_TIM, enc_counts - 1);

	// Filter
	HW_ENC_TIM->CCMR1 |= 6 << 12 | 6 << 4;
	HW_ENC_TIM->CCMR2 |= 6 << 4;

	TIM_Cmd(HW_ENC_TIM, ENABLE);

	// Interrupt on index pulse

	// Connect EXTI Line to pin
	SYSCFG_EXTILineConfig(HW_ENC_EXTI_PORTSRC, HW_ENC_EXTI_PINSRC);

	// Configure EXTI Line
	EXTI_InitStructure.EXTI_Line = HW_ENC_EXTI_LINE;
	EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
	EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
	EXTI_InitStructure.EXTI_LineCmd = ENABLE;
	EXTI_Init(&EXTI_InitStructure);

	// Enable and set EXTI Line Interrupt to the highest priority
	nvicEnableVector(HW_ENC_EXTI_CH, 0);

	mode = ENCODER_MODE_ABI;
}