91 lines
2.6 KiB
C
91 lines
2.6 KiB
C
/********************************** (C) COPYRIGHT *******************************
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* File Name : main.c
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* Author : WCH
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* Version : V1.0.0
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* Date : 2021/06/06
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* Description : Main program body.
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*********************************************************************************
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* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
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* Attention: This software (modified or not) and binary are used for
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* microcontroller manufactured by Nanjing Qinheng Microelectronics.
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*******************************************************************************/
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#include "ch32v20x.h"
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#include <rtthread.h>
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#include <rthw.h>
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#include "drivers/pin.h"
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/* Global typedef */
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/* Global define */
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/* LED0 is driven by the pin driver interface of rt */
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#define LED0_PIN 11 //PA0
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/* Global Variable */
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/*********************************************************************
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* @fn LED1_BLINK_INIT
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*
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* @brief LED1 directly calls the underlying driver
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*
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* @return none
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*/
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void LED1_BLINK_INIT(void)
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{
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GPIO_InitTypeDef GPIO_InitStructure={0};
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
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GPIO_Init(GPIOA, &GPIO_InitStructure);
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}
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/* main is just one of the threads, in addition to tshell,idle
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* main is just an LED blinking, the main thread is registered in rtthread_startup,
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* tshell uses the serial port to receive interrupts, and the interrupt stack and thread stack are
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* used separately.Note that when entering an interrupt, the 16caller register needs to be pushed
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* into the thread stack
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* */
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int main(void)
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{
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rt_kprintf("\r\n MCU: CH32V20x\r\n");
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rt_kprintf(" SysClk: %dHz\r\n",SystemCoreClock);
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rt_kprintf(" www.wch.cn\r\n");
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LED1_BLINK_INIT();
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GPIO_ResetBits(GPIOA,GPIO_Pin_0);
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while(1)
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{
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GPIO_SetBits(GPIOA,GPIO_Pin_0);
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rt_thread_mdelay(500);
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GPIO_ResetBits(GPIOA,GPIO_Pin_0);
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rt_thread_mdelay(500);
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}
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}
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/* Test using the driver interface to operate the I/O port */
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int led(void)
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{
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rt_uint8_t count;
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rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
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printf("led_SP:%08x\r\n",__get_SP());
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for(count = 0 ; count < 10 ;count++)
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{
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rt_pin_write(LED0_PIN, PIN_LOW);
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rt_kprintf("led on, count : %d\r\n", count);
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rt_thread_mdelay(500);
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rt_pin_write(LED0_PIN, PIN_HIGH);
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rt_kprintf("led off\r\n");
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rt_thread_mdelay(500);
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}
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return 0;
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}
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MSH_CMD_EXPORT(led, led sample by using I/O drivers);
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