目錄

• calendar.c
• 測試程序
• 效果

普中51-單核-A2
STC89C52
Keil uVision V5.29.0.0
PK51 Prof.Developers Kit Version:9.60.0.0

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???????stdint.h見【51單片機快速入門指南】1：基礎知識和工程創建
???????I2C版OLED驅動程序見【51單片機快速入門指南】4.2： SSD1306 OLED屏（0.96寸、1.3寸）的I2C控制詳解
???????SPI版OLED驅動程序見SPI驅動0.96/1.3寸 OLED屏幕，易修改為DMA控制
???????軟件I2C程序見【51單片機快速入門指南】4： 軟件 I2C
???????軟件SPI程序見【51單片機快速入門指南】5：軟件SPI

calendar.c

#include "./I2C_OLED/oled.h" #include <string.h> #include <stdint.h> #include <stdio.h>#define DAYS_PER_WEEK 7 #define MONTHS 12 #define is_leap_year(year) ((year % 400 == 0) || (year % 4 == 0 && year % 100 != 0)) //返回當前年份是否為閏年 #define Date_Distance 16//存儲平年每月的天數 code uint8_t month_days[MONTHS] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };code uint8_t Month_Str[12][10] = {"January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"};code uint8_t Week_Str[] = "MoTuWeThFrSaSu";code uint8_t F4X6[][4] = {{ 0x00, 0x1F, 0x11, 0x1F },/*0*/{ 0x00, 0x00, 0x00, 0x1F },/*1*/{ 0x00, 0x1D, 0x15, 0x17 },/*2*/{ 0x00, 0x15, 0x15, 0x1F },/*3*/{ 0x00, 0x07, 0x04, 0x1F },/*4*/{ 0x00, 0x17, 0x15, 0x1D },/*5*/{ 0x00, 0x1F, 0x15, 0x1D },/*6*/{ 0x00, 0x01, 0x01, 0x1F },/*7*/{ 0x00, 0x1F, 0x15, 0x1F },/*8*/{ 0x00, 0x17, 0x15, 0x1F }, /*9*/ };void OLED_Showsmallnum(uint8_t x, uint8_t y, uint8_t chr) {uint8_t i = 0;OLED_Set_Pos(x, y);for (i = 0; i < 4; i++)OLED_WR_Byte(F4X6[chr][i], OLED_DATA); }//返還某年某月有幾天 uint8_t days_of_month(uint16_t year, uint8_t month) {if (2 == month && is_leap_year(year))return 29; // 如果是閏年2月，返回29天elsereturn month_days[month - 1]; //正常返回 }//返回某年某月某日是當前年份第幾天 uint16_t days_of_year(uint16_t year, uint8_t month, uint8_t day) {uint8_t i;uint16_t days = 0;for (i = 1; i < month; i++){days += days_of_month(year, i);}return days + day; }//返回從公元元年算起，某年某月某日是第幾天，用這個數字算星期幾 uint32_t get_days(uint16_t year, uint8_t month, uint8_t day) {uint16_t days = days_of_year(year, month, day);uint16_t temp = year - 1;return (uint32_t)temp * 365 + temp / 4 - temp / 100 + temp / 400 + days; }//返回某年某月某日是星期幾，星期天返回0 uint8_t day_of_week(uint16_t year, uint8_t month, uint8_t day) {return get_days(year, month, day) % DAYS_PER_WEEK; }void printfsm(uint8_t x, uint8_t y, uint8_t num) {if (num < 10)OLED_Showsmallnum(x, y, num);else{OLED_Showsmallnum(x - 4, y, num / 10);OLED_Showsmallnum(x, y, num % 10);} }//輸出某年某個月的日歷 void print_date_of_month(uint16_t year, uint8_t month) {uint8_t first, days, i, h = 2;int16_t x;uint8_t year_month_str[14] = {0}; //先求出這個月第一天星期幾first = day_of_week(year, month, 1);//求出這個月一共有幾天days = days_of_month(year, month);if(first){x = first * Date_Distance;}else{x = 7 * Date_Distance;}for (i = 0; i < days; ++i){printfsm(x + Date_Distance * i, h, i + 1);if ((first + i) % 7 == 0){h++;x = -Date_Distance * i;}}OLED_ShowNum(64 - 4 * (strlen(Month_Str[month - 1]) + 5), 0, year, 4, 6, 0);OLED_ShowString(64 - 4 * strlen(Month_Str[month - 1] + 5) + 4, 0, Month_Str[month - 1], 6, 0);OLED_ShowString(64 - 4 * strlen(Week_Str), 1, Week_Str, 6, 0); }

測試程序

#include <STC89C5xRC.H> #include "intrins.h" #include "stdint.h" #include "./I2C_OLED/oled.h"void print_date_of_month(int year, int month);void main(void) {OLED_Init();OLED_Clear();OLED_Display_On(); print_date_of_month(2022, 1);OLED_Refresh_Gram();while(1){} }

效果

總結

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