Ben Gordon / Mbed 2 deprecated Muscle_Controlled_Servo

Dependencies:   mbed

LCD.cpp@5:11489c0bd020, 2018-04-05 (annotated)

Committer:
BenRJG
Date:
Thu Apr 05 15:54:48 2018 +0000
Revision:
5:11489c0bd020
Parent:
4:bcef9164776e
Child:
8:462ce856429b
Separated functions to individual SPI, FPGA, LCD and ADC files

Who changed what in which revision?

UserRevisionLine numberNew contents of line
BenRJG 5:11489c0bd020 1 #include "LCD.h"
BenRJG 5:11489c0bd020 2
BenRJG 5:11489c0bd020 3 void LCD_INIT(void)
BenRJG 5:11489c0bd020 4 {
BenRJG 5:11489c0bd020 5
BenRJG 5:11489c0bd020 6 // Preload some arrays
BenRJG 5:11489c0bd020 7 // char hello_world[] ="Hello World";
BenRJG 5:11489c0bd020 8 char splash_screen1[]="Martin Simpson";
BenRJG 5:11489c0bd020 9 char splash_screen2[]="Plymouth UNI";
BenRJG 5:11489c0bd020 10 char DVM[] ="Voltage=";
BenRJG 5:11489c0bd020 11
BenRJG 5:11489c0bd020 12 lcd_cls();
BenRJG 5:11489c0bd020 13 lcd_locate(1,1);
BenRJG 5:11489c0bd020 14 lcd_display(splash_screen1); //Credit line 1
BenRJG 5:11489c0bd020 15 lcd_locate(2,2);
BenRJG 5:11489c0bd020 16 lcd_display(splash_screen2); //Credit line 2
BenRJG 5:11489c0bd020 17 wait(2);
BenRJG 5:11489c0bd020 18 lcd_cls();
BenRJG 5:11489c0bd020 19 lcd_locate(1,0);
BenRJG 5:11489c0bd020 20 lcd_display(DVM); //Type Voltage display
BenRJG 5:11489c0bd020 21 lcd_locate(1,13);
BenRJG 5:11489c0bd020 22 lcd_display("V"); //Units display
BenRJG 5:11489c0bd020 23 }
BenRJG 5:11489c0bd020 24
BenRJG 5:11489c0bd020 25 int lcd_cls(void){
BenRJG 5:11489c0bd020 26 spi_write_data(CS_LCD,0x0001);
BenRJG 5:11489c0bd020 27 wait_us(CD); //Clear Screen
BenRJG 5:11489c0bd020 28 return 0;
BenRJG 5:11489c0bd020 29 }
BenRJG 5:11489c0bd020 30
BenRJG 5:11489c0bd020 31 int lcd_locate(uint8_t line, uint8_t column){
BenRJG 5:11489c0bd020 32 uint8_t line_addr;
BenRJG 5:11489c0bd020 33 uint8_t column_addr;
BenRJG 5:11489c0bd020 34 switch(line){
BenRJG 5:11489c0bd020 35 case 1: line_addr=0x80; break;
BenRJG 5:11489c0bd020 36 case 2: line_addr=0xC0; break;
BenRJG 5:11489c0bd020 37 default: return -1; //return code !=0 is error
BenRJG 5:11489c0bd020 38 }
BenRJG 5:11489c0bd020 39 if(column<16){column_addr=column;}
BenRJG 5:11489c0bd020 40 else{return -1;}
BenRJG 5:11489c0bd020 41 spi_write_data(CS_LCD,(line_addr+column_addr));
BenRJG 5:11489c0bd020 42 wait_us(CD); //DDRAM location Second line is 0x00C0 first line starts at 0x0080
BenRJG 5:11489c0bd020 43 return 0;
BenRJG 5:11489c0bd020 44 }
BenRJG 5:11489c0bd020 45
BenRJG 5:11489c0bd020 46 int lcd_display(char* str){
BenRJG 5:11489c0bd020 47
BenRJG 5:11489c0bd020 48 if (strlen(str)>16){return -1;} //return code !=0 is error
BenRJG 5:11489c0bd020 49
BenRJG 5:11489c0bd020 50 uint8_t command_data=1;
BenRJG 5:11489c0bd020 51 uint32_t wait_time;
BenRJG 5:11489c0bd020 52
BenRJG 5:11489c0bd020 53 switch(command_data){
BenRJG 5:11489c0bd020 54 case 0: wait_time=DD; break;
BenRJG 5:11489c0bd020 55 case 1: wait_time=CD; break;
BenRJG 5:11489c0bd020 56 default: return -1;
BenRJG 5:11489c0bd020 57 }
BenRJG 5:11489c0bd020 58
BenRJG 5:11489c0bd020 59 for (int i=0; i<strlen(str);i++){
BenRJG 5:11489c0bd020 60 spi_write_data(CS_LCD,((command_data<<8)+str[i]));
BenRJG 5:11489c0bd020 61 wait_us(wait_time);
BenRJG 5:11489c0bd020 62 }
BenRJG 5:11489c0bd020 63 return 0;
BenRJG 5:11489c0bd020 64 }
BenRJG 5:11489c0bd020 65
BenRJG 5:11489c0bd020 66 int bar_graph(uint8_t level){
BenRJG 5:11489c0bd020 67 if (level>16){return -1;} //return code !=0 is error
BenRJG 5:11489c0bd020 68 spi_write_data(CS_LCD,0x00C0);
BenRJG 5:11489c0bd020 69 wait_us(CD); //DDRAM location Second line is 0x00C0 first line starts at 0x0080
BenRJG 5:11489c0bd020 70 for (int i=1; i<=level ;i++)
BenRJG 5:11489c0bd020 71 {
BenRJG 5:11489c0bd020 72 if(level>0){spi_write_data(CS_LCD,0x01FF);wait_us(DD);} // BLACK SPACE
BenRJG 5:11489c0bd020 73 else{spi_write_data(CS_LCD,0x0120);wait_us(DD);} // WHITE SPACE
BenRJG 5:11489c0bd020 74 }
BenRJG 5:11489c0bd020 75 for (int i=level; i<=16 ;i++)
BenRJG 5:11489c0bd020 76 {
BenRJG 5:11489c0bd020 77 spi_write_data(CS_LCD,0x0120);wait_us(DD); // SPACE
BenRJG 5:11489c0bd020 78 }
BenRJG 5:11489c0bd020 79 return 0; // return code ==0 is OK
BenRJG 5:11489c0bd020 80 }