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https://github.com/travisgoodspeed/goodwatch
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LCD driver is now functional. Close #1.
This commit is contained in:
Travis Goodspeed
parent
89a7dcee9d
commit
df6c132e83
@ -52,10 +52,10 @@ class BSL:
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def reset(self):
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"""Exits the BSL by resetting the chip."""
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self.setTST(True)
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self.setRST(True);
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time.sleep(0.25);
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self.setRST(False);
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self.setRST(True);
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self.setRST(False);
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self.setRST(True);
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def crc(self,msg):
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"""Returns a two-byte string of the checksum of a message."""
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@ -5,7 +5,7 @@ CC = msp430-gcc -mmcu=cc430f6137
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BSL = ../bin/cc430-bsl.py
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modules=main.o lcd.o
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modules=main.o lcd.o lcdtext.o
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all: goodwatch.hex
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@ -4,45 +4,28 @@
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#include <msp430.h>
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// LCD Segments
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#define LCD_A BIT4
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#define LCD_B BIT5
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#define LCD_C BIT6
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#define LCD_D BIT7
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#define LCD_F BIT0
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#define LCD_G BIT1
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#define LCD_E BIT2
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#define LCD_H BIT3
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char *lcdm=&LCDM1;
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char *lcdbm=&LCDBM1;
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//! Clears the LCD memory and blink memory.
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int lcd_zero(){
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int i=0;
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for(i=0; i<=13; i++){
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lcdm[i]=0;
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lcdbm[i]=0;
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}
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}
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// LCD Segment Mapping for the SBLCDA4; the Casio display will be different.
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const unsigned char LCD_Char_Map[] = {
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LCD_A+LCD_B+LCD_C+LCD_D+LCD_E+LCD_F, // '0' or 'O'
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LCD_B+LCD_C, // '1' or 'I'
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LCD_A+LCD_B+LCD_D+LCD_E+LCD_G, // '2' or 'Z'
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LCD_A+LCD_B+LCD_C+LCD_D+LCD_G, // '3'
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LCD_B+LCD_C+LCD_F+LCD_G, // '4' or 'y'
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LCD_A+LCD_C+LCD_D+LCD_F+LCD_G, // '5' or 'S'
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LCD_A+LCD_C+LCD_D+LCD_E+LCD_F+LCD_G, // '6' or 'b'
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LCD_A+LCD_B+LCD_C, // '7'
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LCD_A+LCD_B+LCD_C+LCD_D+LCD_E+LCD_F+LCD_G, // '8' or 'B'
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LCD_A+LCD_B+LCD_C+LCD_D+LCD_F+LCD_G, // '9' or 'g'
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LCD_A+LCD_B+LCD_C+LCD_E+LCD_F+LCD_G, // 'A' 10
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LCD_A+LCD_D+LCD_E+LCD_F, // 'C' 11
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LCD_B+LCD_C+LCD_D+LCD_E+LCD_G, // 'd' 12
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LCD_A+LCD_D+LCD_E+LCD_F+LCD_G, // 'E' 13
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LCD_A+LCD_E+LCD_F+LCD_G, // 'F' 14
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LCD_B+LCD_C+LCD_E+LCD_F+LCD_G, // 'H' 15
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LCD_B+LCD_C+LCD_D+LCD_E, // 'J' 16
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LCD_D+LCD_E+LCD_F, // 'L' 17
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LCD_A+LCD_B+LCD_E+LCD_F+LCD_G, // 'P' 18
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LCD_B+LCD_C+LCD_D+LCD_E+LCD_F // 'U' 19
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};
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//! Initialize the LCD memory and populate it with sample text.
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int lcd_init() {
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int i;
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// Select LCD COM pins
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P5SEL |= (BIT5 | BIT6 | BIT7);
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P5DIR |= (BIT5 | BIT6 | BIT7);
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P5SEL |= (/*BIT5 |*/ BIT6 | BIT7);
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P5DIR |= (/*BIT5 |*/ BIT6 | BIT7);
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// Configure LCD_B
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// LCD_FREQ = ACLK/32/4, LCD Mux 4, turn on LCD
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@ -54,25 +37,34 @@ int lcd_init() {
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REFCTL0 &= ~REFMSTR;
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//Select LCD Segments 0-9
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LCDBPCTL0 = 0x03FF;
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LCDBPCTL1 = 0x0000;
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LCDBPCTL0 = 0xFFFF;
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LCDBPCTL1 = 0xFFFF;
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//LCD Memory
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LCDM5 = LCD_Char_Map[15]; //H
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LCDM4 = LCD_Char_Map[13]; //E
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LCDM3 = LCD_Char_Map[17]; //L
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LCDM2 = LCD_Char_Map[17]; //L
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LCDM1 = LCD_Char_Map[0]; //0
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// Blink Memory
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LCDBM5 = LCD_Char_Map[11]; //C
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LCDBM4 = LCD_Char_Map[11]; //C
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LCDBM3 = LCD_Char_Map[4]; //4
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LCDBM2 = LCD_Char_Map[3]; //3
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LCDBM1 = LCD_Char_Map[0]; //0
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lcd_zero();
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for(i=0;i<13;i++)
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lcdbm[i]=0xFF;
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//Seems unwired?
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lcdm[2]^=0x40;
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//Weird top-right thingys.
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//lcdm[9]|=0x04;
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//lcdm[0x0a]|=0x40;
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//lcdm[0x0c]|=0x01;
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//Beyond the range.
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//lcdm[0x0c]|=0x10;
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}
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//! LCD callback when the CPU wakes.
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void lcd_wdt(){
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LCDBMEMCTL ^= LCDDISP;
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static int i=0, j=0;
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//LCDBMEMCTL ^= LCDDISP; // Enable blink memory
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lcd_zero();
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//lcd_hex(0xdeadbeef);
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lcd_hex(0xcafebabe);
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}
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@ -1,5 +1,11 @@
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/* Handy LCD functions for use in other modules.*/
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/* IO ports. */
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extern char *lcdm;
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extern char *lcdbm;
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/* Handy LCD functions for use in other modules.*/
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extern int lcd_init();
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extern int lcd_wdt();
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extern int lcd_zero();
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153
firmware/lcdtext.c
Normal file
153
firmware/lcdtext.c
Normal file
@ -0,0 +1,153 @@
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#include "lcd.h"
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/* Digits look like this, and we index them with 0 being the
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leftmost.
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AAAAA
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F B
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F B
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F B
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GGGGG
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E C
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E C
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E C
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DDDDD dp
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*/
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//This maps the segments of each digit.
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// A, B, C, D, E, F, G, dp digit
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int map[10][8]={
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{0x0b04, 0x0b40, 0x0b20, 0x0b01, 0x0a10, 0x0a20, 0x0b02, 0x0b10}, //7
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{0x0940, 0x0a04, 0x0a02, 0x0910, 0x0901, 0x0902, 0x0920, 0x0a01}, //6
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{0x0804, 0x0840, 0x0820, 0x0801, 0x0710, 0x0720, 0x0802, 0x0810}, //5
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{0x0640, 0x0704, 0x0702, 0x0610, 0x0601, 0x0602, 0x0620, 0x0701}, //4
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{0x0504, 0x0540, 0x0520, 0x0501, 0x0410, 0x0420, 0x0502, 0x0510}, //3
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{0x0c02, 0x0404, 0x0402, 0x0310, 0x0302, 0x0304, 0x0340, 0x0401}, //2
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{0x0204, 0x0220, 0x0210, 0x0201, 0x0110, 0x0120, 0x0202, 0x0301}, //1
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{0x0040, 0x0104, 0x0102, 0x0010, 0x0001, 0x0002, 0x0020, 0x0201}, //0
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};
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enum mappos {A=1, B=2, C=4, D=8, E=0x10, F=0x20, G=0x40, DP=0x80};
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int numfont[]={
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A|B|C|D|E|F, //0
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B|C, //1
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A|B|G|E|D, //2
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A|B|G|C|D, //3
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F|G|B|C, //4
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A|F|G|C|D, //5
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A|F|G|E|C|D, //6
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A|B|C, //7
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A|B|C|D|E|F|G, //8
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A|B|G|F|C|D, //9
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A|F|B|G|E|C, //A
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F|E|G|C|D, //B
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A|F|E|D, //C
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E|G|C|D|B, //D
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A|F|E|G|D, //E
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A|G|F|E //F
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};
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#define DRAWPOINT(todraw) lcdm[todraw>>8]|=todraw&0xFF
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#define DRAWPOINTB(todraw) lcdbm[todraw>>8]|=todraw&0xFF
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void lcd_digit(int pos, int digit){
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int segments=numfont[digit];
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int bit, todraw;
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for(bit=0;bit<8;bit++){
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if(segments&(1<<bit)){
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DRAWPOINT(map[pos][bit]);
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//DRAWPOINTB(map[pos][bit]);
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}
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}
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}
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//! Draws hex on the screen.
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void lcd_hex(long num){
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/* So in an ideal world, we'd have characters arranged nicely into
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LCDM[] bytes as some development tools do, but in the real world,
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we're pretty much stuck with them as they are physically
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arranged.
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This function takes a buffer of eight hex characters and displays
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them on the screen.
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*/
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int i;
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for(i=0;i<8;i++)
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lcd_digit(i,(num>>(4*i))&0xf);
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}
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//! Activates the colon. 2 for invert.
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int setcolon(int on){
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if(on==2) //Blink
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lcdm[3]^=0x20;
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else if(on==1) //On
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lcdm[3]|=0x20;
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else //Off
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lcdm[3]&=~0x20;
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}
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//! Activates the am. 2 for invert.
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int setam(int on){
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if(on==2) //Blink
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lcdm[0]^=0x04;
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else if(on==1) //On
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lcdm[0]|=0x04;
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else //Off
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lcdm[0]&=~0x04;
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}
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//! Activates the pm. 2 for invert.
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int setpm(int on){
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if(on==2) //Blink
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lcdm[1]^=0x40;
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else if(on==1) //On
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lcdm[1]|=0x40;
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else //Off
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lcdm[1]&=~0x40;
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}
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//! Activates the mult sign. 2 for invert.
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int setmult(int on){
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if(on==2) //Blink
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lcdm[4]^=0x40;
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else if(on==1) //On
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lcdm[4]|=0x40;
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else //Off
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lcdm[4]&=~0x40;
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}
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//! Activates the minus sign. 2 for invert.
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int setminus(int on){
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if(on==2) //Blink
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lcdm[6]^=0x04;
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else if(on==1) //On
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lcdm[6]|=0x04;
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else //Off
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lcdm[6]&=~0x04;
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}
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//! Activates the plus sign. 2 for invert.
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int setplus(int on){
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if(on==2) //Blink
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lcdm[7]^=0x40;
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else if(on==1) //On
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lcdm[7]|=0x40;
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else //Off
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lcdm[7]&=~0x40;
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}
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//! Activates the divide sign. 2 for invert.
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int setdivide(int on){
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if(on==2) //Blink
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lcdm[0xc]^=0x04;
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else if(on==1) //On
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lcdm[0xc]|=0x04;
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else //Off
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lcdm[0xc]&=~0x04;
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}
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@ -12,7 +12,7 @@ int main(void) {
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lcd_init();
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// Setup and enable WDT 250ms, ACLK, interval timer
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// Setup and enable WDT 1000ms, ACLK, interval timer
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WDTCTL = WDT_ADLY_1000;
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SFRIE1 |= WDTIE;
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