372 lines
8.0 KiB
C
372 lines
8.0 KiB
C
#include "includes.h"
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// 是否自检屏状态
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u8 self_check_state = 0;
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// 显示缓冲区
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TVideoBuf VideoBuf = {0};
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TVideoBuf Last_VideoBuf = {0};
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// 定义7段字库编码
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// |-A-|
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// F B
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// |-G-|
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// E C
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// |-D-|
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typedef struct
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{
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unsigned A : 1;
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unsigned B : 1;
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unsigned C : 1;
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unsigned D : 1;
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unsigned E : 1;
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unsigned F : 1;
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unsigned G : 1;
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unsigned : 1;
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} TChar;
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// 字库，不带小数点或单位
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const TChar CLib[] =
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{
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{0, 0, 0, 0, 0, 0, 0}, // ' '
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{0, 0, 0, 0, 0, 0, 1}, // '-'
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{0, 1, 1, 0, 0, 0, 1}, // '+' = '-|'
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{1, 0, 0, 0, 0, 0, 0}, // '^'
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{1, 1, 1, 0, 1, 1, 1}, // 'A'
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{0, 0, 1, 1, 1, 1, 1}, // 'b'
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{0, 0, 0, 1, 1, 0, 1}, // 'c'
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{0, 1, 1, 1, 1, 0, 1}, // 'd'
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{1, 0, 0, 1, 1, 1, 1}, // 'E'
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{1, 0, 0, 0, 1, 1, 1}, // 'F'
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{1, 0, 1, 1, 1, 1, 0}, // 'G'
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{0, 0, 1, 0, 1, 1, 1}, // 'h'
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{0, 0, 0, 0, 1, 1, 0}, // 'I'
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{0, 1, 1, 1, 0, 0, 0}, // 'J'
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{0, 0, 0, 1, 0, 0, 0}, // 'K' = '_'
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{0, 0, 0, 1, 1, 1, 0}, // 'L'
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{0, 0, 0, 1, 0, 0, 0}, // 'M' = '_'
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{0, 0, 1, 0, 1, 0, 1}, // 'n'
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{0, 0, 1, 1, 1, 0, 1}, // 'o'
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{1, 1, 0, 0, 1, 1, 1}, // 'P'
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{1, 1, 1, 0, 0, 1, 1}, // 'q'
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{0, 0, 0, 0, 1, 0, 1}, // 'r'
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{1, 0, 1, 1, 0, 1, 1}, // 'S'
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{0, 0, 1, 0, 0, 0, 1}, // 't'
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{0, 1, 1, 1, 1, 1, 0}, // 'U'
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{0, 1, 0, 0, 1, 1, 1}, // 'V'
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{0, 0, 0, 1, 0, 0, 0}, // 'W' = '_'
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{0, 0, 0, 1, 0, 0, 0}, // 'X' = '_'
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{0, 1, 1, 1, 0, 1, 1}, // 'y'
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{0, 0, 0, 1, 0, 0, 0}, // 'Z' = '_'
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{1, 1, 1, 1, 1, 1, 0}, // '0'
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{0, 1, 1, 0, 0, 0, 0}, // '1'
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{1, 1, 0, 1, 1, 0, 1}, // '2'
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{1, 1, 1, 1, 0, 0, 1}, // '3'
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{0, 1, 1, 0, 0, 1, 1}, // '4'
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{1, 0, 1, 1, 0, 1, 1}, // '5'
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{1, 0, 1, 1, 1, 1, 1}, // '6'
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{1, 1, 1, 0, 0, 0, 0}, // '7'
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{1, 1, 1, 1, 1, 1, 1}, // '8'
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{1, 1, 1, 1, 0, 1, 1}, // '9'
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};
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// 字符在字库中的编码
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typedef enum
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{
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CODE_SPACE, CODE_MINUS, CODE_PLUS, CODE_EXP,
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CODE_A, CODE_B, CODE_C, CODE_D, CODE_E, CODE_F, CODE_G,
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CODE_H, CODE_I, CODE_J, CODE_K, CODE_L, CODE_M, CODE_N,
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CODE_O, CODE_P, CODE_Q, CODE_R, CODE_S, CODE_T,
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CODE_U, CODE_V, CODE_W, CODE_X, CODE_Y, CODE_Z,
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CODE_0, CODE_1, CODE_2, CODE_3, CODE_4, CODE_5, CODE_6, CODE_7, CODE_8, CODE_9
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} TCode;
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TCode HT1621_Char2Code(char c)
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{
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if(c >= '0' && c <= '9')
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return CODE_0 + (c - '0');
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if(c >= 'a' && c <= 'z')
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return CODE_A + (c - 'a');
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if(c >= 'A' && c <= 'Z')
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return CODE_A + (c - 'A');
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if(c == '-')
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return CODE_MINUS;
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if(c == '+')
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return CODE_PLUS;
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if(c == '^')
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return CODE_EXP;
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return CODE_SPACE;
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}
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// pin_no: 1~32
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// com_no: 1~4
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void HT1621_WriteBuf(u16 pin_com, u8 bit_val)
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{
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uint8_t byte_index, bit_index;
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uint8_t pin_no = pin_com / 10;
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uint8_t com_no = pin_com % 10;
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if(pin_no < 1 || pin_no > 25)
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return;
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if(com_no < 1 || com_no > 6)
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return;
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byte_index = pin_no - 1;
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bit_index = com_no - 1; // COM6高位，COM1低位
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if(bit_val)
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VideoBuf.buf[byte_index] |= (1 << bit_index);
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else
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VideoBuf.buf[byte_index] &= ~(1 << bit_index);
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}
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// 写一个七段码字符
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// pin_comA = (A段的pin_no) * 10 + (A段的com_no)
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void HT1621_WriteChar(char c, u16 pin_comA, u16 pin_comB, u16 pin_comC, u16 pin_comD, u16 pin_comE, u16 pin_comF, u16 pin_comG)
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{
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TCode code = HT1621_Char2Code(c);
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HT1621_WriteBuf(pin_comA, CLib[code].A);
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HT1621_WriteBuf(pin_comB, CLib[code].B);
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HT1621_WriteBuf(pin_comC, CLib[code].C);
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HT1621_WriteBuf(pin_comD, CLib[code].D);
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HT1621_WriteBuf(pin_comE, CLib[code].E);
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HT1621_WriteBuf(pin_comF, CLib[code].F);
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HT1621_WriteBuf(pin_comG, CLib[code].G);
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}
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// 写一个七段码数据
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// pin_comA = (A段的pin_no) * 10 + (A段的com_no)
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void HT1621_Write7Seg(u8 val, u16 pin_comA, u16 pin_comB, u16 pin_comC, u16 pin_comD, u16 pin_comE, u16 pin_comF, u16 pin_comG)
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{
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HT1621_WriteBuf(pin_comA, val & 1);
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val >>= 1;
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HT1621_WriteBuf(pin_comB, val & 1);
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val >>= 1;
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HT1621_WriteBuf(pin_comC, val & 1);
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val >>= 1;
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HT1621_WriteBuf(pin_comD, val & 1);
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val >>= 1;
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HT1621_WriteBuf(pin_comE, val & 1);
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val >>= 1;
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HT1621_WriteBuf(pin_comF, val & 1);
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val >>= 1;
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HT1621_WriteBuf(pin_comG, val & 1);
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}
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///////////////////////////////////////////////////////////////////////////////////
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// 以下定义适用于HT16L23驱动芯片
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//命令
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#define WRITE_LCD 0x80
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#define DRIVE_MODE_CMD 0x82
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#define SYS_MODE_CMD 0x84
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#define FRQ_CMD 0x86
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#define BLINK_FRQ_CMD 0x88
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#define VOL_SET_CMD 0x8a
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//参数定义
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#define BIAS_LCD 0x34 // 驱动模式 SEG40*8com显示段位模式 1/8duty 1/3bias
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#define SYS_MODE_LCD 0x03 //显示和内部晶振都打开
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#define FRQ_LCD 0x02 //3--128HZ 2--64
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#define BLINK_FRQ_LCD 0x00 //blinking off
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#define VOL_LCD 0x02 //1--内部V 电压3.3v
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///////////////////////////////////////////////////////////////////////////////////
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void HT1621_Delay()
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{
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__NOP();
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}
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// 通讯定义
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#define HT1621_CS_EN() \
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{ \
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LL_GPIO_ResetOutputPin(GPIOD, LL_GPIO_PIN_12); \
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HT1621_Delay(); \
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}
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#define HT1621_CS_DIS() \
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{ \
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LL_GPIO_SetOutputPin(GPIOD, LL_GPIO_PIN_12); \
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HT1621_Delay(); \
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}
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#define HT1621_CLK_LOW() \
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{ \
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LL_GPIO_ResetOutputPin(GPIOD, LL_GPIO_PIN_13); \
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HT1621_Delay(); \
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}
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#define HT1621_CLK_HIGH() \
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{ \
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LL_GPIO_SetOutputPin(GPIOD, LL_GPIO_PIN_13); \
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HT1621_Delay(); \
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}
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#define HT1621_DATA_1() \
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{ \
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LL_GPIO_SetOutputPin(GPIOD, LL_GPIO_PIN_14); \
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HT1621_Delay(); \
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}
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#define HT1621_DATA_0() \
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{ \
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LL_GPIO_ResetOutputPin(GPIOD, LL_GPIO_PIN_14); \
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HT1621_Delay(); \
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}
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// 写 1 bit
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void HT1621_Bit(u8 b1)
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{
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HT1621_CLK_LOW();
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if(b1)
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{
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HT1621_DATA_1();
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}
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else
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{
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HT1621_DATA_0();
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}
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HT1621_CLK_HIGH();
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}
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// 写多个bits
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void HT1621_Bits(u8 byte, u8 num)
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{
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while(num--)
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{
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HT1621_Bit(byte & 0x80);
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byte <<= 1;
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}
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}
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// 写命令
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void HT1621_Cmd(u8 cmd, u8 val)
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{
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// 片选
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HT1621_CS_EN();
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HT1621_Bits(cmd, 8);
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HT1621_Bits(val, 8);
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// 取消片选
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HT1621_CS_DIS();
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}
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// 设置参数
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void HT1621_SetParams()
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{
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HT1621_Cmd(DRIVE_MODE_CMD, BIAS_LCD);
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HT1621_Cmd(VOL_SET_CMD, VOL_LCD); //使用内部振荡器
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HT1621_Cmd(FRQ_CMD, FRQ_LCD);
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HT1621_Cmd(BLINK_FRQ_CMD, BLINK_FRQ_LCD);
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HT1621_Cmd(SYS_MODE_CMD, SYS_MODE_LCD);
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}
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// 刷新整个显示屏内容
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void HT1621_Refresh()
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{
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u8 i;
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// 比较显示内容和标志位，如无改变则不操作
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if(memcmp(&VideoBuf, &Last_VideoBuf, sizeof(VideoBuf)) == 0)
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return;
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// 保存显示内容和标志位
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Last_VideoBuf = VideoBuf;
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// 处理闪烁，根据标志位临时改变显示内容
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if(!self_check_state && !VideoBuf.blink_visible)
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{
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// 隐藏数字（显示界面）
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if(VideoBuf.fld1_blink) // 显示1
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{
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Disp_Fld1Text(" ");
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Disp_Fld1PointOff();
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}
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if(VideoBuf.fld2_blink) // 显示2
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{
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Disp_Fld2Text(" ");
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Disp_Fld2PointOff();
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}
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if(VideoBuf.fld3_blink) // 显示3
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{
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Disp_Fld3Text(" ");
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Disp_Fld3PointOff();
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}
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if(VideoBuf.fld4_blink) // 显示4
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{
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Disp_Fld4Text(" ");
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Disp_Fld4PointOff();
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}
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if(VideoBuf.battery_blink) // 电池
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Disp_WriteBattery(0);
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// 光标闪烁（配置界面）
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for(i = 0; i < VideoBuf.cursor_width; i++)
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Disp_DispChar(VideoBuf.cursor_pos + i, ' ');
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}
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// 片选
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HT1621_CS_EN();
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HT1621_Bits(WRITE_LCD, 8); // cmd
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HT1621_Bits(0, 8); // addr
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for(i = 0; i < sizeof(VideoBuf.buf); i++)
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HT1621_Bits(VideoBuf.buf[i], 8);
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// 取消片选
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HT1621_CS_DIS();
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// 恢复显示内容和标志位
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VideoBuf = Last_VideoBuf;
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}
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// 整个屏幕全熄灭
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void HT1621_AllOff()
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{
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self_check_state = 1;
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memset(VideoBuf.buf, 0x00, sizeof(VideoBuf.buf)); // 不影响最后的状态
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HT1621_Refresh();
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self_check_state = 0;
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}
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// 整个屏幕全点亮
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void HT1621_AllOn()
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{
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self_check_state = 1;
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memset(VideoBuf.buf, 0xFF, sizeof(VideoBuf.buf)); // 不影响最后的状态
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HT1621_Refresh();
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self_check_state = 0;
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}
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void LCD_Init()
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{
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LL_GPIO_InitTypeDef GPIO_InitStruct = {0};
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LL_AHB2_GRP1_EnableClock(LL_AHB2_GRP1_PERIPH_GPIOD);
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/**/
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LL_GPIO_SetOutputPin(GPIOD, LL_GPIO_PIN_11|LL_GPIO_PIN_12|LL_GPIO_PIN_13|LL_GPIO_PIN_14);
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/**/
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GPIO_InitStruct.Pin = LL_GPIO_PIN_11|LL_GPIO_PIN_12|LL_GPIO_PIN_13|LL_GPIO_PIN_14;
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GPIO_InitStruct.Mode = LL_GPIO_MODE_OUTPUT;
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GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_LOW;
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GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
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GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
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LL_GPIO_Init(GPIOD, &GPIO_InitStruct);
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}
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void LCD_MyOpen()
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{
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HT1621_SetParams();
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}
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