ATY_LIB/HW_PWM_ATY.c

/**
* @file HW_PWM_ATY.c
*
* @param Project DEVICE_GENERAL_ATY_LIB
*
* @author ATY
*
* @copyright
*       - Copyright 2017 - 2023 MZ-ATY
*       - This code follows:
*           - MZ-ATY Various Contents Joint Statement -
*               <a href="https://mengze.top/MZ-ATY_VCJS">
*                        https://mengze.top/MZ-ATY_VCJS</a>
*           - CC 4.0 BY-NC-SA -
*               <a href="https://creativecommons.org/licenses/by-nc-sa/4.0/">
*                        https://creativecommons.org/licenses/by-nc-sa/4.0/</a>
*       - Your use will be deemed to have accepted the terms of this statement.
*
* @brief Familiar definition of PWM for users
*
* @version
*       - 1_01_220602 > ATY
*           -# Preliminary version, first Release
*           - Undone
********************************************************************************
*/

#ifndef __HW_PWM_ATY_C
#define __HW_PWM_ATY_C

#include "HW_PWM_ATY.h"

/******************************* For user *************************************/

#if defined(__STC8G_ATY)
/**
 * @brief   set pulse period with specified duty with PCA
 * @param   periodS pulse period, us
 * @param   dutyS pulse duty, 0-100.0 @ %
 * @param   channelS channel to start or to change param
 * @todo    any freq with ITM1
 */
void PWM_Start(uint32_t periodS, uint8_t dutyS, uint8_t channelS)
{
    // P_SW1 |= 0x10;          // PCA1 P36
    // P3M0 = 0x40;            // P36 PP out

    CCON = 0x00;
    // PWM freq = SYS freq / n / 256
    if(periodS <= 10)
        CMOD = 0x08;        // PCA clk = sys clk, 32/3us 93.75KHz @ 24MHz
    else if(periodS <= 21 && periodS > 10)
        CMOD = 0x02;        // PCA clk = sys clk / 2,
    else if(periodS <= 42 && periodS > 21)
        CMOD = 0x0A;        // PCA clk = sys clk / 4
    else if(periodS <= 64 && periodS > 42)
        CMOD = 0x0C;        // PCA clk = sys clk / 6
    else if(periodS <= 85 && periodS > 64)
        CMOD = 0x0E;        // PCA clk = sys clk / 8
    else if(periodS > 85)//periodS <= 128 && periodS > 85)
        CMOD = 0x00;        // PCA clk = sys clk / 12
    else
        CMOD = 0x04;        // PCA clk = TIM1 IT
    CL = 0x00;              // init counter value
    CH = 0x00;

    if(channelS == 1)
    {
        CCAPM1 = 0x42;      // PCA at PWM mode
        // PCA_PWM1 = 0x80;    // 6bit PWM
        // PCA_PWM1 = 0x40;    // 7bit PWM
        PCA_PWM1 = 0x00;    // 8bit PWM
        // PCA_PWM1 = 0xC0;    // 10bit PWM
        CCAP1L = (uint16_t)(0xFFFF * (float)((100 - dutyS) / 100.0));
        CCAP1H = (uint16_t)(0xFFFF * (float)((100 - dutyS) / 100.0)) >> 8;
    }
    CR = 1;             // start PCA
}

/**
 * @brief   stop PWM output with specified level with PCA
 * @param   level IO level after stop PWM
 * @note    voltage lower than write pin
 */
void PWM_Stop(uint8_t level)
{
    if(level)
    {
        PCA_PWM1 &= 0xC0;
        CCAP1H = 0x00;
    }
    else
    {
        PCA_PWM1 |= 0x3F;
        CCAP1H = 0xFF;
    }
    CR = 0;
}

/**
 * @brief   set pulse period with specified duty with PCA
 * @param   periodS pulse period, us
 * @param   dutyS pulse duty, 0-100.0 @ %
 * @param   channelS channel to start or to change param
 * @todo    any freq with ITM1
 */
void PWM_StartPulse(uint32_t periodS, uint8_t channelS)
{
    CCON = 0x00;
    CMOD = 0x08;            // PCA clk = sys clk, 32/3us 93.75KHz @ 24MHz
    CL = 0x00;              // init counter value
    CH = 0x00;
    if(channelS == 1)
    {
        CCAPM1 = 0x4D;      // PCA at fast pulse mode, enbale IT
        CCAP1L = periodS;
        CCAP1H = periodS >> 8;
    }
    CR = 1;                 // start PCA
    EA = 1;
}
void PCA_Isr() interrupt 7
{
    CCF1 = 0;
    CL = 0x00;
    CH = 0x00;
}

#elif defined(__STC51_ATY)
/**
 * @brief   set pulse period with specified duty
 * @param   periodS pulse period, us
 * @param   dutyS pulse duty, 0-100.0 @ %
 * @param   channelS channel to start or to change param
 * @note    Undone
 */
void PWM_Start(uint32_t periodS, float dutyS, uint8_t channelS)
{
    if(channelS == 2)
    {
        P_SW2 |= 0x80;
        PWMA_CCER1 = 0x00;
        PWMA_CCMR2 = 0x60;
        PWMA_CCER1 = 0x50;
        PWMA_CCR2 = dutyS / 100.0 * periodS;
        PWMA_ARR = periodS;
        PWMA_ENO = 0x08;
        PWMA_PS = (PWMA_PS & 0xF3) | 0x04;      // PWM2N_2 TMC_STEP
        PWMA_BKR = 0x80;
        PWMA_CR1 = 0x01;
        P_SW2 &= 0x7F;
    }
    else if(channelS == 3)
    {
        P_SW2 |= 0x80;
        PWMA_CCER2 = 0x00;
        PWMA_CCMR3 = 0x60;
        PWMA_CCER2 = 0x05;
        PWMA_CCR3 = dutyS / 100.0 * periodS;
        PWMA_ARR = periodS;
        PWMA_ENO = 0x20;
        PWMA_PS = (PWMA_PS & 0xCF) | 0x10;      // PWM3N_2 Heat
        PWMA_BKR = 0x80;
        PWMA_CR1 = 0x01;
        P_SW2 &= 0x7F;
    }
    else if(channelS == 6)
    {
        P_SW2 |= 0x80;
        PWMB_CCER1 = 0x00;                      // Set 0 of CCERx before write CCMRx
        PWMB_CCMR2 = 0x60;                      // Set CC6 PWMB output mode
        PWMB_CCER1 = 0x10;                      // Enable CC6 channel
        PWMB_CCR6 = dutyS / 100.0 * periodS;    // Set dutys time
        PWMB_ARR = periodS;                     // Set period time
        PWMB_ENO = 0x04;                        // Enable PWM6P output
        PWMB_PS = (PWMB_PS & 0xF3) | 0x04;      // PWM6_2 DAC_PWM P54
        PWMB_BKR = 0x80;                        // Enable main output
        PWMB_CR1 = 0x01;                        // Start counter
        P_SW2 &= 0x7F;
    }
}

/**
 * @brief   stop PWM output with specified level
 * @param   level IO level after stop PWM
 * @param   channelS channel to start or to change param
 * @note    Undone, not real stop
 */
void PWM_Stop(uint8_t level, uint8_t channelS)
{
    PWM_Start(1000, level * 1000, channelS);
}

#elif defined(__STM32_HAL_ATY)
#include "tim.h"
/**
 * @brief   set pulse period with specified duty
 * @param   periodS pulse period, us
 * @param   dutyS pulse duty, 0-100.0 @ %
 * @param   channelS channel to start or to change param
 * @note    Undone
 */
void PWM_Start(uint32_t periodS, uint8_t dutyS, uint8_t channelS)
{
    HAL_TIM_PWM_Stop(&htim1, TIM_CHANNEL_4);
    TIM1->CNT = 0;
    HAL_TIM_PWM_Start(&htim1, TIM_CHANNEL_4);
    TIM1->ARR = periodS;
    TIM1->CCR4 = dutyS;
    TIM1->EGR = TIM_EGR_UG;
}

/**
 * @brief   stop PWM output with specified level
 * @param   level IO level after stop PWM
 * @note    Undone
 */
void PWM_Stop(uint8_t level)
{
    if(level)
    {
        TIM1->ARR = 0;
        TIM1->CCR4 = 0;
        TIM1->EGR = TIM_EGR_UG;
    }
    else
    {
        TIM1->ARR = 0;
        TIM1->CCR4 = 1;
        TIM1->EGR = TIM_EGR_UG;
    }
    HAL_TIM_PWM_Stop(&htim1, TIM_CHANNEL_4);
}

#elif defined(__ESP8266_RTOS_ATY)
#include "driver/pwm.h"
#define PWM_CHANNEL_FAN 0
#define PWM_CHANNEL_COLD 1
#define PWM_CHANNEL_WARM 2
const uint32_t* channelPin = {4, 2, 15};
uint8_t* dutiesPercent = {50, 50, 50};
/**
 * @see https://docs.espressif.com/projects/esp8266-rtos-sdk/en/latest/api-reference/peripherals/pwm.html
 *
 */
void PWM_Init(void)
{
    uint32_t period = 1000;
    uint32_t duties[3];
    duties[0] = dutiesPercent[0] / 100.0 * period;
    duties[1] = dutiesPercent[1] / 100.0 * period;
    duties[2] = dutiesPercent[2] / 100.0 * period;
    pwm_init(period, duties, 3, channelPin);
}
/**
 * @brief   set pulse period with specified duty
 * @param   periodS pulse period, us
 * @param   dutyS pulse duty, 0-100.0 @ %
 * @param   channelS channel to start or to change param
 * @todo    not tested
 */
void PWM_Start(uint32_t periodS, uint8_t dutyS, uint8_t channelS)
{
    extern pwm_obj_t* pwm_obj;
    if(periodS = !pwm_obj->period)
        pwm_set_period(periodS);
    pwm_set_duty(channelS, (uint32_t)((float)(dutyS / 100.0) * periodS));
    // pwm_set_period_duties(period, allDuties);
    pwm_start();
}

/**
 * @brief   stop PWM output with specified level
 * @param   level IO level after stop PWM
 * @todo    not tested
 */
void PWM_Stop(uint8_t level)
{
    if(level)
        pwm_stop(0x00);
    else
        pwm_stop(0xFF);
    pwm_deinit();
}
#endif /* PLATFORM */



#ifdef __DEBUG_HW_PWM_ATY
void PWM_Test(uint8_t testType)
{
    if(testType == 11)
    {
        static dutyCount = 0;
        dutyCount++;
        UartSendStr("\r\n");
        UartSendByte(dutyCount / 100 + '0');
        UartSendByte(((uint8_t)dutyCount % 100) / 10 + '0');
        UartSendByte((uint8_t)dutyCount % 10 + '0');
        UartSendStr("\r\n");
        if(dutyCount <= 100)
            PWM_Start(10, dutyCount, 1);
        else if(dutyCount > 100 && dutyCount < 200)
            PWM_Start(10, 200 - dutyCount, 1);
        else
            dutyCount = 0;
    }
    else if(testType == 21)
    {
        static uint8_t tempa = 10;
        PWM_Start(tempa, 50, 1);
        if(tempa == 10)
            tempa = 21;
        else if(tempa == 21)
            tempa = 42;
        else if(tempa == 42)
            tempa = 64;
        else if(tempa == 64)
            tempa = 85;
        else if(tempa == 85)
            tempa = 128;
        else
            tempa = 10;
    }
    else if(testType == 31)
    {
        static uint8_t stopLevel = 0;
        PWM_Start(10, 50, 1);
        stopLevel = !stopLevel;
        UartSendByte(stopLevel + '0');
        PWM_Stop(stopLevel);
        // P36 = stopLevel;
    }
    else if(testType == 22)
    {
        static uint32_t freqCount = 0xFFFF;
        P37 = 0;
        P35 = 0;
        if(freqCount > 100)
            freqCount -= 100;
        else if(freqCount > 0 && freqCount <= 100)
            freqCount -= 1;
        else if(freqCount == 0)
            freqCount = 0xFFFF;
        PWM_StartPulse(freqCount, 1);
        UartSendStr("\r\n");
        UartSendByte(freqCount / 10000 + '0');
        UartSendByte(((uint16_t)freqCount % 10000) / 1000 + '0');
        UartSendByte(((uint16_t)freqCount % 1000) / 100 + '0');
        UartSendByte(((uint16_t)freqCount % 100) / 10 + '0');
        UartSendByte((uint16_t)freqCount % 10 + '0');
    }

}
#endif /* __DEBUG_HW_PWM_ATY */



/******************************************************************************/

/**
 * @brief   set pulse frequence with half dutycycle
 * @param   periodS pulse frequence
 */
void PwmFreqSet(uint32_t periodS, uint8_t channelS)
{
    PWM_Start(periodS, 50, channelS);
}

// /**
//  * @brief   set pulse frequence with half period
//  * @param   periodS pulse frequence
//  */
// void PwmFreqSet(uint32_t periodS, uint8_t channelS)
// {
//     PWM_Start(periodS, periodS / 2, channelS);
// }


#endif /* __HW_PWM_ATY_C */

/******************************** End Of File *********************************/