liz/flipperzero-firmware
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Lf rfid (#196)

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* add lf rfid workaround
* add pwmn
* carrier generator
* proper exit for lf rfid

Co-authored-by: DrZlo13 <who.just.the.doctor@gmail.com>
This commit is contained in:
coreglitch
2020-10-26 15:56:46 +06:00
committed by GitHub
parent bb68fca20b
commit e699c4a31e
6 changed files with 169 additions and 3 deletions
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21
firmware/targets/f2/api-hal/api-hal-pwm.c
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@@ -17,6 +17,27 @@ void hal_pwm_set(float value, float freq, TIM_HandleTypeDef* tim, uint32_t chann
HAL_TIM_PWM_Start(tim, channel);
}
void hal_pwmn_set(float value, float freq, TIM_HandleTypeDef* tim, uint32_t channel) {
tim->Init.CounterMode = TIM_COUNTERMODE_UP;
tim->Init.Period = (uint32_t)((SystemCoreClock / (tim->Init.Prescaler + 1)) / freq - 1);
tim->Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
tim->Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
HAL_TIM_PWM_Init(tim);
TIM_OC_InitTypeDef sConfigOC;
sConfigOC.OCMode = TIM_OCMODE_PWM1;
sConfigOC.Pulse = (uint16_t)(tim->Init.Period * value);
sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;
HAL_TIM_PWM_ConfigChannel(tim, &sConfigOC, channel);
HAL_TIMEx_PWMN_Start(tim, channel);
}
void hal_pwm_stop(TIM_HandleTypeDef* tim, uint32_t channel) {
HAL_TIM_PWM_Stop(tim, channel);
}
void hal_pwmn_stop(TIM_HandleTypeDef* tim, uint32_t channel) {
HAL_TIMEx_PWMN_Stop(tim, channel);
}

4
firmware/targets/f2/api-hal/api-hal-pwm.h
View File

@@ -3,4 +3,6 @@
#include "stdbool.h"
void hal_pwm_set(float value, float freq, TIM_HandleTypeDef* tim, uint32_t channel);
void hal_pwm_stop(TIM_HandleTypeDef* tim, uint32_t channel);
void hal_pwmn_set(float value, float freq, TIM_HandleTypeDef* tim, uint32_t channel);
void hal_pwm_stop(TIM_HandleTypeDef* tim, uint32_t channel);
void hal_pwmn_stop(TIM_HandleTypeDef* tim, uint32_t channel);