V2.4
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qiyongshuang
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/*********************************************************************
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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 : 2026/08/06
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* Description : Main program body.
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*********************************************************************************
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* Copyright (c) 2023 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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/*
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*@Note
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A demo for wui
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pins:
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FLASH_CS -- PA4
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FLASH_DO -- PA6
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FLASH_DI -- PA7
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FLASH_CLK -- PA5
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LCD_LED -- PB9
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LCD_DC -- PB10
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LCD_RST -- PB11
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LCD_CS -- PB12
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LCD_SCK -- PB13
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LCD_MOSI -- PB15
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*/
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#include <math.h>
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#include "debug.h"
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#include "string.h"
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#include "lcd.h"
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#include "flash.h"
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#include "config.h"
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#include "wui.h"
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#include "wui_port.h"
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#include "wui_user/wui_page.h"
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/* Global define */
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/* Global Variable */
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#define TIM_PCK (8000ul)
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/*********************************************************************
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* @fn TIM4_init
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*
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* @brief Initialize TIM2 for WCHGUI
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*
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* @return none.
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*/
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void TIM4_init()
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{
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE);
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TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure = {0};
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TIM_Cmd(TIM4, DISABLE);
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TIM_TimeBaseInitStructure.TIM_Period = 0xffff;
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TIM_TimeBaseInitStructure.TIM_Prescaler = ((SystemCoreClock) / TIM_PCK) - 1;
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TIM_TimeBaseInitStructure.TIM_ClockDivision = TIM_CKD_DIV1;
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TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up;
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TIM_TimeBaseInit(TIM4, &TIM_TimeBaseInitStructure);
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TIM_ARRPreloadConfig(TIM4, DISABLE);
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TIM_ClearFlag(TIM4, TIM_FLAG_Update);
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TIM_Cmd(TIM4, ENABLE);
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}
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/*********************************************************************
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* @fn TIM3_Encoder_Init
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*
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* @brief Initialize TIM1 for encoder
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*
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* @return none.
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*/
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void TIM3_Encoder_Init()
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{
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TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
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TIM_ICInitTypeDef TIM_ICInitStructure;
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GPIO_InitTypeDef GPIO_InitStructure = {0};
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
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{
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GPIO_PinRemapConfig(GPIO_PartialRemap_TIM3, ENABLE);
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4 | GPIO_Pin_5;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
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GPIO_Init(GPIOB, &GPIO_InitStructure);
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}
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TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);
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TIM_TimeBaseStructure.TIM_Prescaler = 0x0;
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TIM_TimeBaseStructure.TIM_Period = 160;
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TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
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TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
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TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);
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TIM_EncoderInterfaceConfig(TIM3, TIM_EncoderMode_TI12, TIM_ICPolarity_Rising, TIM_ICPolarity_Rising);
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TIM_ICStructInit(&TIM_ICInitStructure);
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TIM_ICInitStructure.TIM_ICFilter = 10;
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TIM_ICInit(TIM3, &TIM_ICInitStructure);
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TIM_SetCounter(TIM3, 0);
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TIM_Cmd(TIM3, ENABLE);
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}
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/*********************************************************************
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* @fn check_direction
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*
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* @brief Compute the absolute value of a signed 32-bit integer.
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*
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* @param a Signed 32-bit integer.
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*
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* @return Absolute value of a
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*/
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uint32_t static inline iabs(int32_t a)
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{
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if (a < 0)
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{
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return -a;
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}
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return a;
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}
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/*********************************************************************
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* @fn check_direction
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*
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* @brief Detect the rotation direction of the encoder
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*
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* @param current_value The current count value
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*
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* @return direction The direction of the encoder's rotation
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*/
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int32_t check_direction(int current_value)
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{
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static int last_value = 0;
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if (current_value == last_value)
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{
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return 0;
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}
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int diff = current_value - last_value;
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if (iabs(diff) < 4)
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{
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return 0;
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}
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int32_t direction;
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if (iabs(diff) < 80)
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{
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if (diff > 0)
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{
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direction = 1;
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}
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else
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{
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direction = -1;
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}
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}
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else
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{
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if (diff > 0)
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{
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direction = -1;
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}
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else
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{
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direction = 1;
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}
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}
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last_value = current_value;
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return direction;
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}
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#define ENC_KEY_PORT GPIOA
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#define ENC_KEY_PIN (GPIO_Pin_15)
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#define ENC_KEY() ((ENC_KEY_PORT->INDR & ENC_KEY_PIN) == 0)
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uint32_t key3_state = 0;
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/*********************************************************************
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* @fn Key_GPIOInit
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*
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* @brief Initialization of the key pins of the encoder
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*
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* @return none.
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*/
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void Key_GPIOInit(void)
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{
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GPIO_InitTypeDef GPIO_InitStructure = {0};
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GPIO_InitStructure.GPIO_Pin = ENC_KEY_PIN;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
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GPIO_Init(ENC_KEY_PORT, &GPIO_InitStructure);
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}
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static uint8_t wui_heap_buffer[4 * 1024];
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/*********************************************************************
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* @fn main
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*
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* @brief Main program.
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*
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* @return none
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*/
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int main(void)
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{
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SystemCoreClockUpdate();
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Delay_Init();
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USART_Printf_Init(115200);
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printf("SystemClk:%d\r\n", SystemCoreClock);
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printf(__TIME__ "\n");
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SPI_FLASH_Init();
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uint32_t id = SPI_Flash_ReadJedecDeviceID();
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printf("flash_id %x\n", id);
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LCD_Init();
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TIM3_Encoder_Init();
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TIM4_init();
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Key_GPIOInit();
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wui_init_data_t data = {
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.page_count = WUI_PAGE_COUNT,
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.width = LCD_WIDTH,
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.height = LCD_HEIGHT,
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.heap_addr = wui_heap_buffer,
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.heap_size = sizeof(wui_heap_buffer),
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};
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wui_init(&data);
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wui_register_hal(wui_get_hal());
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wui_page_switch(WUI_START_PAGE);
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while (1)
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{
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uint16_t now = TIM4->CNT;
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if (now > 16)
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{
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now = now / 8;
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TIM4->CNT = 0;
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wui_page_ui_tick(now);
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}
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wui_page_ui_update();
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uint32_t tcnt = TIM3->CNT;
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int32_t dir = check_direction(tcnt);
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if (dir > 0)
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{
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HW_Key_event('a');
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}
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else if (dir < 0)
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{
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HW_Key_event('d');
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}
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uint32_t k3 = ENC_KEY();
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if (k3)
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{
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if (key3_state)
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{
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}
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else
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{
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key3_state = 1;
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HW_Key_event('b');
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}
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}
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else
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{
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key3_state = 0;
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}
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}
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while (1)
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{
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}
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}
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