lcd段码屏驱动

//COM_OFF条件:共阳LED, COM为低
#define COM_ALL_OFF() LED_COM0 &= ~(BIT(LED_COM0_bit) | BIT(LED_COM1_bit) | BIT(LED_COM2_bit) | BIT(LED_COM3_bit));\
LED_COM4 &= ~BIT(LED_COM4_bit);
//SEGx_ON条件: IO口方向设为输入,且下拉使能
#define SEG0_ON() P2DIR |= BIT(2); //C0
#define SEG1_ON() P2DIR |= BIT(3); //C1
#define SEG2_ON() P2DIR |= BIT(4); //C2
#define LCD_COM2_DN P1PD0
#define LCD_COM3_DN P1PD0
#define LCD_COM4_DN P3PD0
#define LCD_COM0 P1
#define LCD_COM1 P1
#define LCD_COM2 P1
// | P13 P12 P11 P10 P32 P22 P23 P24 P25 P26 P30 P31 |
// | | | | | | | | | | | | | |
// | B0 B1 B2 B3 B4 C0 C1 C2 C3 C4 C5 C6 |
* Function : led_5c7s显示函数定义
*****************************************************************************/
#ifndef LED_5C7S_H
#define LED_5C7S_H
/**** 5c7s引脚映射 ****/
#define LCD_COM1_UP P1PU0
#define LCD_COM2_UP P1PU0
#define LCD_COM3_UP P1PU0
#define LCD_COM4_UP P3PU0
#define LCD_COM0_DN P1PD0
#define LCD_COM1_DN P1PD0
//SEGx退检测复用模式，关闭10K上拉，打开500R下拉，同时SEG_OFF
#define SEG_EXIT_DETECT() P2PU0 &= ~0xf0; P2PU1 &= ~0x3f; P3PU0 &= ~0x0f; \
பைடு நூலகம் P2PD0 |= 0xa0; P2PD1 |= 0x2a; P3PD0 |= 0x0a;
#define LCD_COM0_DIR P1DIR
#define LCD_COM1_DIR P1DIR
#define LCD_COM2_DIR P1DIR
#define LCD_COM3_DIR P1DIR
#define LCD_COM4_DIR P3DIR
#define LCD_COM0_UP P1PU0
#define LED_COM4 P3
#define LED_COM0_bit 3
#define LED_COM1_bit 2
#define LED_COM2_bit 1
#define LED_COM3_bit 0
#define LED_COM4_bit 2
#define LED_COM3_DIR P1DIR
#define LED_COM4_DIR P3DIR
#define LED_COM0 P1
#define LED_COM1 P1
#define LED_COM2 P1
#define LED_COM3 P1
/*****************************************************************************
* Module : Display
* File : led_5c7s.h
* Author : Hanny
* Email : coldney@
#define SEG_ENTER_DETECT() P2DIR |= 0x7c; P3DIR |= 0x03; P2PD0 &= ~0xf0; P2PD1 &= ~0x3f; \
P3PD0 &= ~0x0f; P2PU0 |= 0x50; P2PU1 |= 0x15; P3PU0 |= 0x05;
// ----------------------------------------------------------------
#define LED_COM0_DIR P1DIR
#define LED_COM1_DIR P1DIR
#define LED_COM2_DIR P1DIR
//SEGx_OFF条件: 关掉下拉, IO口方向设为输出,且输出为1
#define SEG_ALL_OFF() P2 |= 0x7C; P3 |= (BIT(0) | BIT(1)); P2DIR &= ~0x7C; P3DIR &= ~(BIT(0) | BIT(1));
//SEGx进入检测复用模式，IO设为输入，关闭500R下拉，打开10K上拉
#define LCD_COM3 P1
#define LCD_COM4 P3
#define LCD_COM0_bit 3
#define LCD_COM1_bit 2
#define LCD_COM2_bit 1
#define LCD_COM3_bit 0
void led_5c7s_init(void);
void led_5c7s_value_set(void);
__near_func void led_5c7s_scan(void);
#endif
#define LCD_COM4_bit 2
//COM_ON条件: 共阳LED, COM为高
#define COM0_ON() LED_COM0 |= BIT(LED_COM0_bit) //P13
#define COM1_ON() LED_COM1 |= BIT(LED_COM1_bit) //P12
#define COM2_ON() LED_COM2 |= BIT(LED_COM2_bit) //P11
#define COM3_ON() LED_COM3 |= BIT(LED_COM3_bit) //P10
#define COM4_ON() LED_COM4 |= BIT(LED_COM4_bit) //P32
// ----------------------------------------------------------------
// | COM0 COM1 COM2 COM3 COM4 S0 S1 S2 S3 S4 S5 S6 |
// | | | | | | | | | | | | | |
#define SEG3_ON() P2DIR |= BIT(5); //C3
#define SEG4_ON() P2DIR |= BIT(6); //C4
#define SEG5_ON() P3DIR |= BIT(0); //C5
#define SEG6_ON() P3DIR |= BIT(1); //C6