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#include "timera_pwm.h"
extern uint16_t test_var;
/**
* @brief TimerA configuration.
* @param None
* @retval None
*/
static void TmrAConfig(void)
{
stc_tmra_init_t stcTmraInit;
stc_tmra_pwm_init_t stcPwmInit;
/* 1. Enable TimerA peripheral clock. */
FCG_Fcg2PeriphClockCmd(TMRA_PERIPH_CLK, ENABLE);
/* 2. Set a default initialization value for stcTmraInit. */
(void)TMRA_StructInit(&stcTmraInit);
/* 3. Modifies the initialization values depends on the application. */
stcTmraInit.sw_count.u8CountMode = TMRA_MD;
stcTmraInit.sw_count.u8CountDir = TMRA_DIR;
stcTmraInit.u32PeriodValue = TMRA_PERIOD_VAL;
(void)TMRA_Init(TMRA_UNIT, &stcTmraInit);
/* 4. Set the comparison reference value. */
(void)TMRA_PWM_StructInit(&stcPwmInit);
stcPwmInit.u32CompareValue = TMRA_PWM_CMP_VAL;
GPIO_SetFunc(TMRA_PWM_PORT, TMRA_PWM_PIN, TMRA_PWM_PIN_FUNC);
(void)TMRA_PWM_Init(TMRA_UNIT, TMRA_PWM_CH, &stcPwmInit);
TMRA_PWM_OutputCmd(TMRA_UNIT, TMRA_PWM_CH, ENABLE);
}
void TimeraPwmInit(void)
{
TmrAConfig();
test_var = 2;
}
void TimeraPwmStart(void)
{
TMRA_Start(TMRA_UNIT);
}
/**
* Stop PWM output:
* TMRA_Stop(TMRA_UNIT);
* or
* TMRA_PWM_OutputCmd(TMRA_UNIT, TMRA_PWM_x_CH, DISABLE);
*/
void TimeraPwmStop(void)
{
TMRA_Stop(TMRA_UNIT);
}
int32_t TimeraPwmSetDuty(uint8_t u8Duty)
{
uint32_t u32CompareValue;
// 限制占空比范圍（0~100）
if (u8Duty > 100)
{
return LL_ERR_INVD_PARAM;
}
u32CompareValue = (TMRA_PWM_CMP_VAL * u8Duty) / 100;
TMRA_SetCompareValue(TMRA_UNIT, TMRA_PWM_CH, u32CompareValue);
return LL_OK;
}
/****************************************************END OF FILE****************************************************/

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/**
*******************************************************************************
* @file main.c
* @brief Main program.
@verbatim
Change Logs:
Date Author Notes
2025-11-11 CDT First version
@endverbatim
*******************************************************************************
* Copyright (C) 2022-2025, Xiaohua Semiconductor Co., Ltd. All rights reserved.
*
* This software component is licensed by XHSC under BSD 3-Clause license
* (the "License"); You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
*******************************************************************************
*/
/*******************************************************************************
* Include files
******************************************************************************/
#include "main.h"
#include "My_button.h"
#include "timer.h"
#include "timera_pwm.h"
/*******************************************************************************
* Local type definitions ('typedef')
******************************************************************************/
uint16_t test_var = 0;
en_pin_state_t pc13;
/*******************************************************************************
* Local pre-processor symbols/macros ('#define')
******************************************************************************/
/*******************************************************************************
* Global variable definitions (declared in header file with 'extern')
******************************************************************************/
/*******************************************************************************
* Local function prototypes ('static')
******************************************************************************/
/*******************************************************************************
* Local variable definitions ('static')
******************************************************************************/
/*******************************************************************************
* Function implementation - global ('extern') and local ('static')
******************************************************************************/
// Clock Config
static void App_ClkCfg(void)
{
/* Set bus clock div. */
CLK_SetClockDiv(CLK_BUS_CLK_ALL, (CLK_HCLK_DIV1 | CLK_EXCLK_DIV2 | CLK_PCLK0_DIV1 | CLK_PCLK1_DIV2 |
CLK_PCLK2_DIV4 | CLK_PCLK3_DIV4 | CLK_PCLK4_DIV2));
/* sram init include read/write wait cycle setting */
SRAM_SetWaitCycle(SRAM_SRAM_ALL, SRAM_WAIT_CYCLE1, SRAM_WAIT_CYCLE1);
SRAM_SetWaitCycle(SRAM_SRAMH, SRAM_WAIT_CYCLE0, SRAM_WAIT_CYCLE0);
/* flash read wait cycle setting */
EFM_SetWaitCycle(EFM_WAIT_CYCLE5);
/* XTAL config */
stc_clock_xtal_init_t stcXtalInit;
(void)CLK_XtalStructInit(&stcXtalInit);
stcXtalInit.u8State = CLK_XTAL_ON;
stcXtalInit.u8Drv = CLK_XTAL_DRV_HIGH;
stcXtalInit.u8Mode = CLK_XTAL_MD_OSC;
stcXtalInit.u8StableTime = CLK_XTAL_STB_2MS;
(void)CLK_XtalInit(&stcXtalInit);
/* MPLL config */
stc_clock_pll_init_t stcMPLLInit;
(void)CLK_PLLStructInit(&stcMPLLInit);
stcMPLLInit.PLLCFGR = 0UL;
stcMPLLInit.PLLCFGR_f.PLLM = (1UL - 1UL);
stcMPLLInit.PLLCFGR_f.PLLN = (50UL - 1UL);
stcMPLLInit.PLLCFGR_f.PLLP = (2UL - 1UL);
stcMPLLInit.PLLCFGR_f.PLLQ = (2UL - 1UL);
stcMPLLInit.PLLCFGR_f.PLLR = (2UL - 1UL);
stcMPLLInit.u8PLLState = CLK_PLL_ON;
stcMPLLInit.PLLCFGR_f.PLLSRC = CLK_PLL_SRC_XTAL;
(void)CLK_PLLInit(&stcMPLLInit);
/* 3 cycles for 126MHz ~ 200MHz */
GPIO_SetReadWaitCycle(GPIO_RD_WAIT3);
/* Switch driver ability */
PWC_HighSpeedToHighPerformance();
/* Set the system clock source */
CLK_SetSysClockSrc(CLK_SYSCLK_SRC_PLL);
}
// Port Config
static void App_PortCfg(void)
{
GPIO_SetDebugPort(GPIO_PIN_TDI, DISABLE);
}
/**
* @brief Main function of the project
* @param None
* @retval int32_t return value, if needed
*/
int32_t main(void)
{
/* Register write unprotected for some required peripherals. */
LL_PERIPH_WE(LL_PERIPH_ALL);
// Clock Config
App_ClkCfg();
// Port Config
App_PortCfg();
/* Register write protected for some required peripherals. */
// Timer Init
timer0_init();
// GPIO Init
gpio_init();
// LCD_Init();
My_button_init_attach_start();
// Timera PWM Init
TimeraPwmInit();
DDL_DelayMS(1U);
TimeraPwmStart();
DDL_DelayMS(1U);
// LL_PERIPH_WP(LL_PERIPH_ALL);
for (;;)
{
// test_var++;
TimeraPwmSetDuty(test_var);
// pc13 = gpio_read_pc13();
}
}
/**
* @brief TMR0 compare interrupt callback function
* @param None
* @retval None
*/
void TMR0_CompareIrqCallback(void)
{
TMR0_ClearStatus(TMR0_UNIT, TMR0_CH_FLAG);
static uint32_t _t0 = 0U;
static uint32_t tik5ms = 0U;
_t0++;
tik5ms++;
if (tik5ms >= 5U) // 50ms掃描一次按鍵
{
button_ticks();
tik5ms = 0U;
}
if (_t0 >= 1000U)
{
gpio_toggle();
// test_var++; TimeraPwmSetDuty((uint8_t)test_var); // 修正這一行
_t0 = 0U;
}
}
/*******************************************************************************
* EOF (not truncated)
******************************************************************************/

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#include "timera_pwm.h"
extern uint32_t test_var;
/**
* @brief TimerA configuration.
* @param None
* @retval None
*/
static void TmrAConfig(void)
{
stc_tmra_init_t stcTmraInit;
stc_tmra_pwm_init_t stcPwmInit;
/* 1. Enable TimerA peripheral clock. */
FCG_Fcg2PeriphClockCmd(TMRA_PERIPH_CLK, ENABLE);
/* 2. Set a default initialization value for stcTmraInit. */
(void)TMRA_StructInit(&stcTmraInit);
/* 3. Modifies the initialization values depends on the application. */
stcTmraInit.sw_count.u8CountMode = TMRA_MD_SAWTOOTH; // 鋸齒波
stcTmraInit.sw_count.u8CountDir = TMRA_DIR_UP; // 向上計(jì)數(shù)模式
stcTmraInit.u32PeriodValue = (500UL-1UL);
(void)TMRA_Init(TMRA_UNIT, &stcTmraInit);
(void)TMRA_PWM_StructInit(&stcPwmInit);
stcPwmInit.u32CompareValue = 1UL; // 占空比50%
GPIO_SetFunc(TMRA_PWM_PORT, TMRA_PWM_PIN, TMRA_PWM_PIN_FUNC);
(void)TMRA_PWM_Init(TMRA_UNIT, TMRA_PWM_CH, &stcPwmInit);
TMRA_PWM_OutputCmd(TMRA_UNIT, TMRA_PWM_CH, ENABLE);
}
void TimeraPwmInit(void)
{
TmrAConfig();
TMRA_Start(TMRA_UNIT);
}
void TimeraPwmStart(void)
{
TMRA_Start(TMRA_UNIT);
}
/**
* Stop PWM output:
* TMRA_Stop(TMRA_UNIT);
* or
* TMRA_PWM_OutputCmd(TMRA_UNIT, TMRA_PWM_x_CH, DISABLE);
*/
void TimeraPwmStop(void)
{
TMRA_Stop(TMRA_UNIT);
}
int32_t TimeraPwmSetDuty(uint8_t u8Duty)
{
uint32_t u32CompareValue;
// 限制占空比范圍（0~100）
if (u8Duty > 100)
{
return LL_ERR_INVD_PARAM;
}
// 將0-100的占空比映射到0-(TMRA_PERIOD_VAL-1)的比較值范圍
u32CompareValue = ((499 - 1) * u8Duty) / 100;
TMRA_SetCompareValue(TMRA_UNIT, TMRA_PWM_CH, u32CompareValue);
return LL_OK;
}
/****************************************************END OF FILE****************************************************/

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/*
* Author: ClingYang
* Date: 2025-11-11
* Version: 1.0
*/
#ifndef __TIMERA_PWM_H__
#define __TIMERA_PWM_H__
#ifdef __cplusplus
extern "C" {
#endif
#include "main.h"
#define TMRA_UNIT (CM_TMRA_6)
#define TMRA_PERIPH_CLK (FCG2_PERIPH_TMRA_6)
#define TMRA_PWM_CH (TMRA_CH4)
#define TMRA_PWM_PORT (GPIO_PORT_A)
#define TMRA_PWM_PIN (GPIO_PIN_15)
#define TMRA_PWM_PIN_FUNC (GPIO_FUNC_5)
#define TMRA_MD (TMRA_MD_SAWTOOTH)
#define TMRA_DIR (TMRA_DIR_UP)
#define TMRA_PERIOD_VAL (500U - 1U) // 200kHz @ 100MHz PCLK1
#define TMRA_PWM_CMP_VAL (149U) // 30%占空比
void TimeraPwmInit(void);
void TimeraPwmStart(void);
void TimeraPwmStop(void);
int32_t TimeraPwmSetDuty(uint8_t u8Duty);
#ifdef __cplusplus
}
#endif
#endif /*__TIMERA_PWM_H__*/

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