Klagarge/PTR-Events
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Rémi Heredero
2024-04-08 12:52:52 +02:00
commit 26880f9bb8
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RTE/Hesso_pack/ext_led.c Normal file
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#include "stm32f7xx_hal.h"
#include "ext_led.h"
#include <stdint.h>
//------------------------------------------------------------------------------
static const uint8_t cie1931[101] =
{
0, 0, 1, 1, 1, 1, 2, 2, 2, 3,
3, 3, 4, 4, 4, 5, 5, 6, 6, 7,
8, 8, 9, 10, 10, 11, 12, 13, 14, 15,
16, 17, 18, 19, 20, 22, 23, 24, 26, 27,
29, 30, 32, 34, 35, 37, 39, 41, 43, 45,
47, 49, 51, 54, 56, 58, 61, 64, 66, 69,
72, 75, 78, 81, 84, 87, 90, 93, 97, 100,
104, 108, 111, 115, 119, 123, 127, 131, 136, 140,
145, 149, 154, 159, 163, 168, 173, 179, 184, 189,
195, 200, 206, 212, 217, 223, 230, 236, 242, 248,
255,
};
#if LIGHTNESS_PWM_STEP != 100
#error this cie1931 array supports only 100 steps, feel free to implement your own
#endif
//------------------------------------------------------------------------------
uint8_t lightness_to_pwm(uint8_t percentage)
{
if(percentage > (LIGHTNESS_PWM_STEP-1))
percentage = (LIGHTNESS_PWM_STEP-1);
return cie1931[percentage];
}
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
int32_t Ext_LED_Init(void) {
GPIO_InitTypeDef GPIO_InitStruct;
//----------------------------------------------------------------------------
// Configure GPIO pin: PA15 (LED0)
__HAL_RCC_GPIOA_CLK_ENABLE(); // enable GPIO timer
__HAL_RCC_TIM2_CLK_ENABLE(); // enable timer 2 clock
GPIO_InitStruct.Pin = GPIO_PIN_15; // used pin is PA15
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; // alternate function use
GPIO_InitStruct.Pull = GPIO_NOPULL; // no pullup
GPIO_InitStruct.Alternate = GPIO_AF1_TIM2;// timer 2 is used
GPIO_InitStruct.Speed = GPIO_SPEED_FAST; // speed is fast
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
TIM2->CCER = TIM_CCER_CC1E; // compare for PWM usage
TIM2->PSC = 16; // timer prescaler
TIM2->ARR = 255; // max count value
TIM2->CCR1 = lightness_to_pwm(0); // duty cycle
TIM2->CCMR1 = TIM_CCMR1_OC1M_2 | TIM_CCMR1_OC1M_1 | TIM_CCMR1_OC1PE;
TIM2->EGR |= TIM_EGR_UG; // update register now
TIM2->CR1 = TIM_CR1_ARPE | TIM_CR1_CEN; // start the timer
//----------------------------------------------------------------------------
// Configure GPIO pin: PH6 (LED1)
__HAL_RCC_GPIOH_CLK_ENABLE(); // enable GPIO timer
__HAL_RCC_TIM12_CLK_ENABLE(); // enable timer 12 clock
GPIO_InitStruct.Pin = GPIO_PIN_6; // used pin is PH6
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; // alternate function use
GPIO_InitStruct.Pull = GPIO_NOPULL; // no pullup
GPIO_InitStruct.Alternate = GPIO_AF9_TIM12;// timer 12 is used
GPIO_InitStruct.Speed = GPIO_SPEED_FAST; // speed is fast
HAL_GPIO_Init(GPIOH, &GPIO_InitStruct);
TIM12->CCER = TIM_CCER_CC1E; // compare for PWM usage
TIM12->PSC = 16; // timer prescaler
TIM12->ARR = 255; // max count value
TIM12->CCR1 = lightness_to_pwm(0); // duty cycle
TIM12->CCMR1 = TIM_CCMR1_OC1M_2 | TIM_CCMR1_OC1M_1 | TIM_CCMR1_OC1PE;
TIM12->EGR |= TIM_EGR_UG; // update register now
TIM12->CR1 = TIM_CR1_ARPE | TIM_CR1_CEN; // start the timer
//----------------------------------------------------------------------------
// Configure GPIO pin: PA8 (LED2)
__HAL_RCC_GPIOA_CLK_ENABLE(); // enable GPIO timer
__HAL_RCC_TIM1_CLK_ENABLE(); // enable timer 1 clock
GPIO_InitStruct.Pin = GPIO_PIN_8; // used pin is PA8
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; // alternate function use
GPIO_InitStruct.Pull = GPIO_NOPULL; // no pullup
GPIO_InitStruct.Alternate = GPIO_AF1_TIM1;// timer 5 is used
GPIO_InitStruct.Speed = GPIO_SPEED_FAST; // speed is fast
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
TIM1->CCER = TIM_CCER_CC1E; // compare for PWM usage
TIM1->PSC = 16; // timer prescaler
TIM1->ARR = 255; // max count value
TIM1->CCR1 = lightness_to_pwm(0); // duty cycle
TIM1->CCMR1 = TIM_CCMR1_OC1M_2 | TIM_CCMR1_OC1M_1 | TIM_CCMR1_OC1PE;
TIM1->EGR |= TIM_EGR_UG; // update register now
TIM1->CR1 = TIM_CR1_ARPE | TIM_CR1_CEN; // start the timer
TIM1->BDTR = TIM_BDTR_MOE; // master output enable
//----------------------------------------------------------------------------
// Configure GPIO pin: PB4 (LED3)
__HAL_RCC_GPIOB_CLK_ENABLE(); // enable GPIO timer
__HAL_RCC_TIM3_CLK_ENABLE(); // enable timer 3 clock
GPIO_InitStruct.Pin = GPIO_PIN_4; // used pin is PB4
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; // alternate function use
GPIO_InitStruct.Pull = GPIO_NOPULL; // no pullup
GPIO_InitStruct.Alternate = GPIO_AF2_TIM3;// timer 3 is used
GPIO_InitStruct.Speed = GPIO_SPEED_FAST; // speed is fast
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
TIM3->CCER = TIM_CCER_CC1E; // compare for PWM usage
TIM3->PSC = 16; // timer prescaler
TIM3->ARR = 255; // max count value
TIM3->CCR1 = lightness_to_pwm(0); // duty cycle
TIM3->CCMR1 = TIM_CCMR1_OC1M_2 | TIM_CCMR1_OC1M_1 | TIM_CCMR1_OC1PE;
TIM3->EGR |= TIM_EGR_UG; // update register now
TIM3->CR1 = TIM_CR1_ARPE | TIM_CR1_CEN; // start the timer
return 0;
}
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
int32_t Ext_LED_On (uint32_t num) {
if((num & 1) != 0)
{
TIM2->CCR1 = lightness_to_pwm(LIGHTNESS_PWM_STEP);
}
if((num & 2) != 0)
{
TIM12->CCR1 = lightness_to_pwm(LIGHTNESS_PWM_STEP);
}
if((num & 4) != 0)
{
TIM1->CCR1 = lightness_to_pwm(LIGHTNESS_PWM_STEP);
}
if((num & 8) != 0)
{
TIM3->CCR1 = lightness_to_pwm(LIGHTNESS_PWM_STEP);
}
return 0;
}
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
int32_t Ext_LED_Off (uint32_t num) {
if((num & 1) != 0)
{
TIM2->CCR1 = lightness_to_pwm(0);
}
if((num & 2) != 0)
{
TIM12->CCR1 = lightness_to_pwm(0);
}
if((num & 4) != 0)
{
TIM1->CCR1 = lightness_to_pwm(0);
}
if((num & 8) != 0)
{
TIM3->CCR1 = lightness_to_pwm(0);
}
return 0;
}
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
int32_t Ext_LED_PWM (uint32_t num, uint32_t duty) {
if((num & 1) != 0)
{
TIM2->CCR1 = lightness_to_pwm(duty);
}
if((num & 2) != 0)
{
TIM12->CCR1 = lightness_to_pwm(duty);
}
if((num & 4) != 0)
{
TIM1->CCR1 = lightness_to_pwm(duty);
}
if((num & 8) != 0)
{
TIM3->CCR1 = lightness_to_pwm(duty);
}
return 0;
}
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
int32_t Ext_LEDs(uint32_t num) {
if((num & 1) != 0)
{
TIM2->CCR1 = lightness_to_pwm(LIGHTNESS_PWM_STEP);
}
else
{
TIM2->CCR1 = lightness_to_pwm(0);
}
if((num & 2) != 0)
{
TIM12->CCR1 = lightness_to_pwm(LIGHTNESS_PWM_STEP);
}
else
{
TIM12->CCR1 = lightness_to_pwm(0);
}
if((num & 4) != 0)
{
TIM1->CCR1 = lightness_to_pwm(LIGHTNESS_PWM_STEP);
}
else
{
TIM1->CCR1 = lightness_to_pwm(0);
}
if((num & 8) != 0)
{
TIM3->CCR1 = lightness_to_pwm(LIGHTNESS_PWM_STEP);
}
else
{
TIM3->CCR1 = lightness_to_pwm(0);
}
return 0;
}