/*
Futaba M11BT222A VFD 显示屏驱动程序
Coder : Farman
Version : 2018-01-07
该显示屏采用PT6311芯片驱动,但板子端口和PT6311之间的信号经过了
其他芯片的转换,SCLK和STB信号被翻转。在程序中要相应的进行变换。
Pin :
1 - VCC +5V
2 - GND
3 - No Connection
4 - Booster 1:On 0:OFF
5 - SDA
6 - GND
7 - SCLK
8 - STB
*/
#include
#include "Delay.h"
sbit M11BT222A_SDA = P0^7; // SPI 数据线
sbit M11BT222A_SCLK = P0^6; // SPI 串行时钟
sbit M11BT222A_STB = P0^5; // 片选信号,0-不选 1-选中。
sbit M11BT222A_BOOSTER = P0^4; // 板上电压发生器控制,1-ON 0-OFF
// Futaba M11BT222A 接口信号与 M11BT222A 之间经过了器件转换,SCLK 和 STB 信号电平翻转
#define M11BT222A_SDA_HIGH 1
#define M11BT222A_SCLK_HIGH 0
#define M11BT222A_STB_HIGH 0
//--------------------------------------------------------
void M11BT222A_delay()
{
_nop_();
}
//----------------------------------------------------------
void M11BT222A_enable()
{
M11BT222A_STB = !M11BT222A_STB_HIGH;
M11BT222A_delay();
}
void M11BT222A_disable()
{
M11BT222A_STB = M11BT222A_STB_HIGH;
M11BT222A_delay();
}
void M11BT222A_write_byte(unsigned char byte_to_write)
{
unsigned char mask = 0x01;
unsigned char n;
for(n=0; n<8; n++)
{
M11BT222A_SCLK =!M11BT222A_SCLK_HIGH;
M11BT222A_delay();
M11BT222A_SDA = (mask & byte_to_write) ? 1 : 0; M11BT222A_delay();
M11BT222A_SCLK = M11BT222A_SCLK_HIGH;
M11BT222A_delay();
mask += mask;
}
return;
}
void M11BT222A_write_command_byte(unsigned char command_byte)
{
M11BT222A_enable();
M11BT222A_write_byte(command_byte);
M11BT222A_disable();
}
//----------------------------------------------------------
// digits_could_display : 8 - 16
// 命令前必须有一次 STB 有效,
// 命令后必须有一次 STB 释放。
void M11BT222A_command1(unsigned char digits_could_display)
{
M11BT222A_write_command_byte(digits_could_display - 1);
}
// 命令前必须有一次 STB 有效,
// 命令后必须有一次 STB 释放。
void M11BT222A_command2(bit enable_inc_addr_after_write)
{
unsigned char command = 0x40;
command += enable_inc_addr_after_write ? 0x00 : 0x04;
M11BT222A_write_command_byte(command);
}
// addr : 0x00 - 0x2F
// 该命令后面要紧跟写入显示RAM的数据,且该命令与数据之间不允许有 STB 释放操作
// 数据与数据之间也不允许有 STB 释放。
//
// 所以,在该命令前要 调用一次 M11BT222A_enable()
// 所有的显示RAM传输结束后,调用一次 M11BT222A_disable().
void M11BT222A_command3(unsigned char RAM_addr_to_write)
{
M11BT222A_write_byte(0xC0 + RAM_addr_to_write);
}
// 命令前必须有一次 STB 有效,
// 命令后必须有一次 STB 释放。
void M11BT222A_command4(bit enable_display)
{
M11BT222A_write_command_byte(enable_display ? 0x8F : 0x87);
}
//----------------------------------------------------------
void M11BT222A_write_display_RAM(unsigned char addr, unsigned char display_data_byte)
{
M11BT222A_enable();
M11BT222A_command3(addr);
M11BT222A_write_byte(display_data_byte);
M11BT222A_disable();
}
void M11BT222A_fill_display(unsigned char pattern)
{
unsigned char m;
M11BT222A_command2(1);
M11BT222A_enable();
M11BT222A_command3(0);
for(m=0x00; m<0x30; m++)
{
M11BT222A_write_byte(pattern);
}
M11BT222A_disable();
}
//----------------------------------------------------------
code unsigned char M11BT222A_16seg_digit[] =
{
0x46, 0x31, // '0'
0x10, 0x84, // '1'
0x45, 0xD1, // '2'
0x43, 0xD1, // '3'
0x03, 0xF0, // '4'
0x43, 0xE1, // '5'
0x47, 0xE1, // '6'
0x10, 0x89, //0x02, 0x11, // '7'
0x47, 0xF1, // '8'
0x43, 0xF1 // '9'
};
void M11BT222A_show_16seg_digit(unsigned char pos, unsigned char digit)
{
M11BT222A_write_display_RAM(pos*3+1, M11BT222A_16seg_digit[digit*2]);
M11BT222A_write_display_RAM(pos*3, M11BT222A_16seg_digit[digit*2 + 1]);
}
code unsigned char M11BT222A_8seg_digit[] =
{
0x77, 0x12, 0x6B, 0x5B, 0x1E, 0x5D, 0x7D, 0x13, 0x7F, 0x5F
};
code unsigned char M11BT222A_8seg_pos[] =
{
0x00, 0x06, 0x07, 0x03, 0x04, 0x01
};
void M11BT222A_show_8seg_digit(unsigned char pos, unsigned char digit)
{
M11BT222A_write_display_RAM(15 + M11BT222A_8seg_pos[pos], M11BT222A_8seg_digit[digit]);
//M11BT222A_write_display_RAM(15 + pos, M11BT222A_8seg_digit[digit]);
}
void M11BT222A_show_disk(unsigned char pattern)
{
M11BT222A_write_display_RAM(24, pattern);
}
void M11BT222A_show_network(unsigned int pattern)
{
M11BT222A_write_display_RAM(30, pattern/256);
M11BT222A_write_display_RAM(31, pattern);
}
void M11BT222A_show_usb(unsigned int pattern)
{
M11BT222A_write_display_RAM(27, pattern/256);
M11BT222A_write_display_RAM(28, pattern);
}
//----------------------------------------------------------
void M11BT222A_booster_enable()
{
M11BT222A_BOOSTER = 1;
}
void M11BT222A_booster_disable()
{
M11BT222A_BOOSTER = 0;
}
//----------------------------------------------------------
void M11BT222A_init()
{
M11BT222A_disable();
M11BT222A_SCLK = 0;
M11BT222A_SDA = 1;
M11BT222A_booster_enable();
Delay200ms();
M11BT222A_command2(1);
M11BT222A_fill_display(0xFF);
M11BT222A_command1(11);
M11BT222A_command4(1);
}
//----------------------------------------------------------
void M11BT222A_main()
{
unsigned char m, n, seg;
M11BT222A_init();
M11BT222A_fill_display(0xFF); Delay200ms();
M11BT222A_fill_display(0x00); Delay200ms();
M11BT222A_fill_display(0xFF); Delay200ms();
M11BT222A_fill_display(0x00); Delay200ms();
M11BT222A_fill_display(0xFF); Delay200ms();
M11BT222A_fill_display(0x00); Delay200ms();
while(1)
{
seg = 0x01;
M11BT222A_show_usb(0x5555);
continue;
M11BT222A_show_network(0x5555); Delay1s();
M11BT222A_show_network(0xAAAA); Delay1s();
M11BT222A_show_disk(0x55);
for(m=0; m<10; m++)
{
M11BT222A_show_8seg_digit(0, 0);
M11BT222A_show_8seg_digit(1, 1);
M11BT222A_show_8seg_digit(2, 2);
M11BT222A_show_8seg_digit(3, 3);
M11BT222A_show_8seg_digit(4, 4);
M11BT222A_show_8seg_digit(5, 9);
Delay1s();
}
for(m=0; m<10; m++)
{
M11BT222A_show_16seg_digit(0, m);
M11BT222A_show_16seg_digit(1, m);
M11BT222A_show_16seg_digit(2, m);
M11BT222A_show_16seg_digit(3, m);
M11BT222A_show_16seg_digit(4, m);
Delay1s();
}
}
}