124 lines
3.3 KiB
C
124 lines
3.3 KiB
C
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/*********************************************************
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* @file cm_demo_pwm.c
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* @brief OpenCPU PWM示例
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* Copyright (c) 2021 China Mobile IOT.
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* All rights reserved.
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* created by zyf 2021/08/30
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********************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <stdlib.h>
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#include "cm_demo_pwm.h"
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#include "cm_pwm.h"
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#include "cm_common.h"
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#include "cm_iomux.h"
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#include "cm_demo_uart.h"
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#include "cm_os.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Private Types
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****************************************************************************/
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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void cm_test_pwm_start(unsigned char **cmd,int len)
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{
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uint32_t clk = 0, period = 0, period_h = 0;
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uint8_t dev = CM_PWM_DEV_0;
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cm_demo_printf("pwm test start... ...\n");
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if( (cmd == NULL) || (len != 6))
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{
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cm_demo_printf(" cmd = NULL or cmd len = %d error!\n", len);
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return;
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}
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//使用PWM0测试
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dev = atoi((char *)cmd[2]);
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clk = atoi((char *)cmd[3]);
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period = atoi((char *)cmd[4]);
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period_h = atoi((char *)cmd[5]);
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cm_demo_printf("pwm=%d,clk=%d, period=%d,period_h =%d\n", dev, clk, period, period_h);
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if(dev==0)
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{
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cm_iomux_set_pin_func(OPENCPU_TEST_PWM0_IOMUX);
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}
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else if(dev==1)
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{
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cm_iomux_set_pin_func(OPENCPU_TEST_PWM1_IOMUX);
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}
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else if(dev==2)
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{
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cm_iomux_set_pin_func(OPENCPU_TEST_PWM2_IOMUX);
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}
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else if(dev==3)
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{
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cm_iomux_set_pin_func(OPENCPU_TEST_PWM3_IOMUX);
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}
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if(0 != cm_pwm_set_clk(dev, clk))//时钟源选择需要放在open之前
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{
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cm_demo_printf("pwm%d cm_pwm_set_clk error\n", dev);
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return;
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}
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if(0 != cm_pwm_open_ns(dev, period,period_h))
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{
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cm_demo_printf("pwm%d open error\n", dev);
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}
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}
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void cm_test_pwm_close(unsigned char **cmd,int len)
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{
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uint8_t dev = CM_PWM_DEV_0;
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cm_demo_printf("pwm test close... ...\n");
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if( (cmd == NULL) || (len != 3))
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{
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cm_demo_printf(" cmd = NULL or cmd len = %d error!\n", len);
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return;
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}
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//使用PWM0测试
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dev = atoi((char *)cmd[2]);
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if(cm_pwm_close(dev) == 0)
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{
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cm_demo_printf("[PWM]Stop Success\n");
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}
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else
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{
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cm_demo_printf("[PWM]Stop Fail\n");
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}
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}
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