37fc47a24f
* DWT-based microsecond delay * simple ir app (work only with NEC protocol and predefined address - command) * remove space from file name, add delay_us_init_DWT header * float-based delay us * init tim2 by CubeMX * fix simple pwm functions * simple pwm timer based ir nec protocol * ir gui test app Co-authored-by: aanper <mail@s3f.ru>
99 lines
2.5 KiB
C
99 lines
2.5 KiB
C
/*
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Flipper devices inc.
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GPIO and HAL implementations
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*/
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#pragma once
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#include <stdbool.h>
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#include "main.h"
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typedef enum { GpioModeInput, GpioModeOutput, GpioModeOpenDrain } GpioMode;
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typedef struct {
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GPIO_TypeDef* port;
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uint32_t pin;
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} GpioPin;
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void app_gpio_init(GpioPin gpio, GpioMode mode);
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static inline void app_gpio_write(GpioPin gpio, bool state) {
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if(gpio.pin != 0) {
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if(state) {
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gpio.port->BSRR = (uint32_t)gpio.pin;
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} else {
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gpio.port->BRR = (uint32_t)gpio.pin;
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}
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}
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}
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static inline bool app_gpio_read(GpioPin gpio) {
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if(gpio.pin != 0) {
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return (gpio.port->IDR & gpio.pin) != 0x00u;
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}
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return false;
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}
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void delay_us_init_DWT(void);
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void delay_us(float time);
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void pwm_set(float value, float freq, TIM_HandleTypeDef* tim, uint32_t channel);
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void pwm_stop(TIM_HandleTypeDef* tim, uint32_t channel);
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extern TIM_HandleTypeDef htim8;
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static inline void app_tim_ic_init(bool both) {
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HAL_TIM_OC_Stop(&htim8, TIM_CHANNEL_2);
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TIM_IC_InitTypeDef sConfigIC = {0};
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sConfigIC.ICPolarity = both ? TIM_INPUTCHANNELPOLARITY_BOTHEDGE :
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TIM_INPUTCHANNELPOLARITY_FALLING;
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sConfigIC.ICSelection = TIM_ICSELECTION_DIRECTTI;
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sConfigIC.ICPrescaler = TIM_ICPSC_DIV1;
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sConfigIC.ICFilter = 0;
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HAL_TIM_IC_ConfigChannel(&htim8, &sConfigIC, TIM_CHANNEL_2);
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HAL_TIM_IC_Start_IT(&htim8, TIM_CHANNEL_2);
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}
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static inline void app_tim_pulse(uint32_t width) {
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htim8.State = HAL_TIM_STATE_BUSY;
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__HAL_TIM_DISABLE(&htim8);
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__HAL_TIM_SET_COUNTER(&htim8, 0);
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TIM_OC_InitTypeDef sConfigOC;
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sConfigOC.OCMode = TIM_OCMODE_INACTIVE;
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sConfigOC.Pulse = (uint16_t)(width);
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sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
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sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;
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// HAL_TIM_OC_ConfigChannel(&htim8, &sConfigOC, TIM_CHANNEL_2);
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htim8.Lock = HAL_LOCKED;
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/* Configure the TIM Channel 2 in Output Compare */
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TIM_OC2_SetConfig(htim8.Instance, &sConfigOC);
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htim8.Lock = HAL_UNLOCKED;
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// TIM_CCxChannelCmd(htim8.Instance, TIM_CHANNEL_2, TIM_CCx_ENABLE);
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/* Reset the CCxE Bit */
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htim8.Instance->CCER &= ~(TIM_CCER_CC1E << (TIM_CHANNEL_2 & 0x1FU));
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/* Set or reset the CCxE Bit */
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htim8.Instance->CCER |= (uint32_t)(TIM_CCx_ENABLE << (TIM_CHANNEL_2 & 0x1FU));
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__HAL_TIM_MOE_ENABLE(&htim8);
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__HAL_TIM_ENABLE(&htim8);
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htim8.State = HAL_TIM_STATE_READY;
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}
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static inline void app_tim_stop() {
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HAL_TIM_OC_Stop(&htim8, TIM_CHANNEL_2);
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HAL_TIM_IC_Stop(&htim8, TIM_CHANNEL_2);
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}
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