ECE 111 At Oregon State University
/
Lab6_Basic
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Lab6_Basic
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ECE 111 At Oregon State University
SLCD.cpp
- Committer:
- dogcatfee
- Date:
- 2017-11-14
- Revision:
- 6:65dfd3886629
File content as of revision 6:65dfd3886629:
#include "SLCD.h"
#include "LCDconfig.h"
const uint8_t WF_ORDERING_TABLE[ ] =
{
CHAR1a, // LCD81 --- Pin:5 LCDnAddress=51
CHAR1b, // LCD82 --- Pin:6 LCDnAddress=52
CHAR2a, // LCD83 --- Pin:7 LCDnAddress=53
CHAR2b, // LCD84 --- Pin:8 LCDnAddress=54
CHAR3a, // LCD85 --- Pin:9 LCDnAddress=55
CHAR3b, // LCD86 --- Pin:10 LCDnAddress=56
CHAR4a, // LCD87 --- Pin:11 LCDnAddress=57
CHAR4b, // LCD88 --- Pin:12 LCDnAddress=58
CHARCOM0, // LCD77 --- Pin:1 LCDnAddress=4D
CHARCOM1, // LCD78 --- Pin:2 LCDnAddress=4E
CHARCOM2, // LCD79 --- Pin:3 LCDnAddress=4F
CHARCOM3, // LCD80 --- Pin:4 LCDnAddress=50
};
const char ASCII_TO_WF_CODIFICATION_TABLE [ ] =
{
/*
segA
________
| |
segF | | segB
| |
-segG--
| |
segE | | segC
|________|
segD
*/
( SEGD+ SEGE+ SEGF+!SEGG) , ( SEGC+ SEGB+ SEGA) ,//Char = 0, offset=0
(!SEGD+!SEGE+!SEGF+!SEGG) , ( SEGC+ SEGB+!SEGA) ,//Char = 1, offset=4
( SEGD+ SEGE+!SEGF+ SEGG) , (!SEGC+ SEGB+ SEGA) ,//Char = 2, offset=8
( SEGD+!SEGE+!SEGF+ SEGG) , ( SEGC+ SEGB+ SEGA) ,//Char = 3, offset=12
(!SEGD+!SEGE+ SEGF+ SEGG) , ( SEGC+ SEGB+!SEGA) ,//Char = 4, offset=16
( SEGD+!SEGE+ SEGF+ SEGG) , ( SEGC+!SEGB+ SEGA) ,//Char = 5, offset=20
( SEGD+ SEGE+ SEGF+ SEGG) , ( SEGC+!SEGB+ SEGA) ,//Char = 6, offset=24
(!SEGD+!SEGE+!SEGF+!SEGG) , ( SEGC+ SEGB+ SEGA) ,//Char = 7, offset=28
( SEGD+ SEGE+ SEGF+ SEGG) , ( SEGC+ SEGB+ SEGA) ,//Char = 8, offset=32
( SEGD+!SEGE+ SEGF+ SEGG) , ( SEGC+ SEGB+ SEGA) ,//Char = 9, offset=36
(!SEGD+!SEGE+!SEGF+!SEGG) , (!SEGC+!SEGB+!SEGA) ,//Char = :, offset=40
(!SEGD+!SEGE+!SEGF+!SEGG) , (!SEGC+!SEGB+!SEGA) ,//Char = ;, offset=44
(!SEGD+!SEGE+!SEGF+!SEGG) , (!SEGC+!SEGB+!SEGA) ,//Char = <, offset=48
( SEGD+!SEGE+!SEGF+ SEGG) , (!SEGC+!SEGB+!SEGA) ,//Char = =, offset=52
(!SEGD+!SEGE+!SEGF+!SEGG) , (!SEGC+!SEGB+!SEGA) ,//Char = >, offset=56
(!SEGD+!SEGE+!SEGF+!SEGG) , (!SEGC+!SEGB+ SEGA) ,//Char = ?, offset=60
( SEGD+ SEGE+ SEGF+ SEGG) , ( SEGC+ SEGB+ SEGA) ,//Char = @, offset=64
(!SEGD+ SEGE+ SEGF+ SEGG) , ( SEGC+ SEGB+ SEGA) ,//Char = A, offset=68
( SEGD+ SEGE+ SEGF+ SEGG) , ( SEGC+!SEGB+!SEGA) ,//Char = B, offset=72
( SEGD+ SEGE+ SEGF+!SEGG) , (!SEGC+!SEGB+ SEGA) ,//Char = C, offset=76
( SEGD+ SEGE+!SEGF+ SEGG) , ( SEGC+ SEGB+!SEGA) ,//Char = D, offset=80
( SEGD+ SEGE+ SEGF+ SEGG) , (!SEGC+!SEGB+ SEGA) ,//Char = E, offset=84
(!SEGD+ SEGE+ SEGF+ SEGG) , (!SEGC+!SEGB+ SEGA) ,//Char = F, offset=88
( SEGD+ SEGE+ SEGF+ SEGG) , ( SEGC+!SEGB+ SEGA) ,//Char = G, offset=92
(!SEGD+ SEGE+ SEGF+ SEGG) , ( SEGC+ SEGB+!SEGA) ,//Char = H, offset=96
(!SEGD+!SEGE+!SEGF+!SEGG) , ( SEGC+!SEGB+!SEGA) ,//Char = I, offset=100
( SEGD+ SEGE+!SEGF+!SEGG) , ( SEGC+ SEGB+!SEGA) ,//Char = J, offset=104
(!SEGD+ SEGE+ SEGF+ SEGG) , ( SEGC+!SEGB+ SEGA) ,//Char = K, offset=108
( SEGD+ SEGE+ SEGF+!SEGG) , (!SEGC+!SEGB+!SEGA) ,//Char = L, offset=112
(!SEGD+ SEGE+ SEGF+!SEGG) , ( SEGC+ SEGB+ SEGA) ,//Char = M, offset=116
(!SEGD+ SEGE+!SEGF+ SEGG) , ( SEGC+!SEGB+!SEGA) ,//Char = N, offset=120
( SEGD+ SEGE+!SEGF+ SEGG) , ( SEGC+!SEGB+!SEGA) ,//Char = O, offset=124
(!SEGD+ SEGE+ SEGF+ SEGG) , (!SEGC+ SEGB+ SEGA) ,//Char = P, offset=128
( SEGD+!SEGE+ SEGF+ SEGG) , ( SEGC+ SEGB+ SEGA) ,//Char = Q, offset=132
(!SEGD+ SEGE+!SEGF+ SEGG) , (!SEGC+!SEGB+!SEGA) ,//Char = R, offset=136
( SEGD+!SEGE+ SEGF+ SEGG) , ( SEGC+!SEGB+ SEGA) ,//Char = S, offset=140
( SEGD+ SEGE+ SEGF+ SEGG) , (!SEGC+!SEGB+!SEGA) ,//Char = T, offset=144
( SEGD+ SEGE+ SEGF+!SEGG) , ( SEGC+ SEGB+!SEGA) ,//Char = U, offset=148
( SEGD+ SEGE+!SEGF+!SEGG) , ( SEGC+!SEGB+!SEGA) ,//Char = V, offset=152
( SEGD+ SEGE+ SEGF+!SEGG) , ( SEGC+ SEGB+!SEGA) ,//Char = W, offset=156
(!SEGD+ SEGE+ SEGF+ SEGG) , ( SEGC+ SEGB+!SEGA) ,//Char = X, offset=160
( SEGD+!SEGE+ SEGF+ SEGG) , ( SEGC+ SEGB+!SEGA) ,//Char = Y, offset=164
( SEGD+!SEGE+!SEGF+ SEGG) , (!SEGC+!SEGB+!SEGA) ,//Char = Z, offset=168
( SEGD+!SEGE+!SEGF+!SEGG) , (!SEGC+!SEGB+ SEGA) ,//Char = [, offset=172
( SEGD+!SEGE+!SEGF+!SEGG) , (!SEGC+!SEGB+ SEGA) ,//Char = \, offset=176
( SEGD+!SEGE+!SEGF+!SEGG) , (!SEGC+!SEGB+ SEGA) ,//Char = ], offset=180
( SEGD+!SEGE+!SEGF+!SEGG) , (!SEGC+!SEGB+ SEGA) ,//Char = ^, offset=184
( SEGD+!SEGE+!SEGF+!SEGG) , (!SEGC+!SEGB+ SEGA) ,//Char = _, offset=188
( SEGD+!SEGE+!SEGF+!SEGG) , (!SEGC+!SEGB+ SEGA) ,//Char = `, offset=192
};
SLCD::SLCD() {
init();
CharPosition = 0;
}
void SLCD::init(){
SIM->SCGC5 |= SIM_SCGC5_SLCD_MASK | SIM_SCGC5_PORTB_MASK | SIM_SCGC5_PORTC_MASK | SIM_SCGC5_PORTD_MASK | SIM_SCGC5_PORTE_MASK;
// configure pins for LCD operation
PORTC->PCR[20] = 0x00000000; //VLL2
PORTC->PCR[21] = 0x00000000; //VLL1
PORTC->PCR[22] = 0x00000000; //VCAP2
PORTC->PCR[23] = 0x00000000; //VCAP1
// Enable IRCLK
MCG->C1 = MCG_C1_IRCLKEN_MASK | MCG_C1_IREFSTEN_MASK;
MCG->C2 &= ~MCG_C2_IRCS_MASK ; //0 32KHZ internal reference clock; 1= 4MHz irc
LCD->GCR = 0x0;
LCD->AR = 0x0;
// LCD configurartion
LCD->GCR = ( LCD_GCR_RVEN_MASK*_LCDRVEN
| LCD_GCR_RVTRIM(_LCDRVTRIM) //0-15
| LCD_GCR_CPSEL_MASK*_LCDCPSEL
| LCD_GCR_LADJ(_LCDLOADADJUST) //0-3
| LCD_GCR_VSUPPLY_MASK*_LCDSUPPLY //0-1
|!LCD_GCR_FDCIEN_MASK
| LCD_GCR_ALTDIV(_LCDALTDIV) //0-3
|!LCD_GCR_LCDDOZE_MASK
|!LCD_GCR_LCDSTP_MASK
|!LCD_GCR_LCDEN_MASK //WILL BE ENABLE ON SUBSEQUENT STEP
| LCD_GCR_SOURCE_MASK*_LCDCLKSOURCE
| LCD_GCR_ALTSOURCE_MASK*_LCDALRCLKSOURCE
| LCD_GCR_LCLK(_LCDLCK) //0-7
| LCD_GCR_DUTY(_LCDDUTY) //0-7
);
uint8_t i;
uint32_t *p_pen;
uint8_t pen_offset; // 0 or 1
uint8_t pen_bit; // 0 to 31
LCD->PEN[0] = 0x0;
LCD->PEN[1] = 0x0;
LCD->BPEN[0] = 0x0;
LCD->BPEN[1] = 0x0;
p_pen = (uint32_t *)&LCD->PEN[0];
for (i=0;i<_LCDUSEDPINS;i++)
{
pen_offset = WF_ORDERING_TABLE[i]/32;
pen_bit = WF_ORDERING_TABLE[i]%32;
p_pen[pen_offset] |= 1 << pen_bit;
if (i>= _LCDFRONTPLANES) // Pin is a backplane
{
p_pen[pen_offset+2] |= 1 << pen_bit; // Enable BPEN
LCD->WF8B[(uint8_t)WF_ORDERING_TABLE[i]] = 1 << (i - _LCDFRONTPLANES); // fill with 0x01, 0x02, etc
}
}
LCD->GCR |= LCD_GCR_LCDEN_MASK;
}
int SLCD::_putc(int c) {
Write_Char(c);
return 0;
}
void SLCD::Write_Char (char lbValue) {
uint8_t char_val;
uint8_t temp;
uint8_t *lbpLCDWF;
uint8_t lbCounter;
uint16_t arrayOffset;
uint8_t position;
if (CharPosition >= _CHARNUM)
CharPosition = 0;
lbpLCDWF = (uint8_t *)&LCD->WF8B[0];
/* only ascii character if value not writeable write as @ */
if (lbValue>='a' && lbValue<='z') {
lbValue -= 32; // UpperCase
}
if (lbValue<ASCCI_TABLE_START || lbValue >ASCCI_TABLE_END) {
lbValue = BLANK_CHARACTER; // default value as space
}
lbValue -=ASCCI_TABLE_START; // Remove the offset to search in the ascci table
arrayOffset = (lbValue * _CHAR_SIZE); // Compensate matrix offset
// ensure bLCD position is in valid limit
lbCounter = 0; //number of writings to complete one char
while (lbCounter<_CHAR_SIZE) {
position = (CharPosition) *_LCDTYPE + lbCounter;
temp=0;
if (lbCounter==1) {
temp = lbpLCDWF[WF_ORDERING_TABLE[position]] & 0x01;//bit 0 has the special symbol information
}
char_val = ASCII_TO_WF_CODIFICATION_TABLE[arrayOffset + lbCounter];
lbpLCDWF[WF_ORDERING_TABLE[position]] = char_val | temp;
// if (char_val==0) lbCounter = _CHAR_SIZE; //end of this character
lbCounter++;
}
CharPosition++;
}
void SLCD::Home (void)
{
CharPosition = 0;
}
void SLCD::Contrast (uint8_t lbContrast)
{
lbContrast &= 0x0F; //Forced to the only values accepted
LCD->GCR |= LCD_GCR_RVTRIM(lbContrast);
}
void SLCD::All_Segments (int mode)
{
uint8_t lbTotalBytes = _CHARNUM * _LCDTYPE;
uint8_t lbCounter=0;
uint8_t *lbpLCDWF;
lbpLCDWF = (uint8_t *)&LCD->WF8B[0];
while (lbCounter < lbTotalBytes)
{
if (mode==1){lbpLCDWF[(uint8_t)WF_ORDERING_TABLE[lbCounter++]]=_ALLON;}
else {lbpLCDWF[WF_ORDERING_TABLE[lbCounter++]]=0;}
}
}
void SLCD::DP1 (int mode)
{
uint8_t *lbpLCDWF;
lbpLCDWF = (uint8_t *)&LCD->WF8B[0];
if (mode==1){lbpLCDWF[(uint8_t)WF_ORDERING_TABLE[1]]|=1;}
else {lbpLCDWF[(uint8_t)WF_ORDERING_TABLE[1]]&=~1;}
}
void SLCD::DP2 (int mode)
{
uint8_t *lbpLCDWF;
lbpLCDWF = (uint8_t *)&LCD->WF8B[0];
if (mode==1){lbpLCDWF[(uint8_t)WF_ORDERING_TABLE[3]]|=1;}
else {lbpLCDWF[(uint8_t)WF_ORDERING_TABLE[3]]&=~1;}
}
void SLCD::DP3 (int mode)
{
uint8_t *lbpLCDWF;
lbpLCDWF = (uint8_t *)&LCD->WF8B[0];
if (mode==1){lbpLCDWF[(uint8_t)WF_ORDERING_TABLE[5]]|=1;}
else {lbpLCDWF[(uint8_t)WF_ORDERING_TABLE[5]]&=~1;}
}
void SLCD::Colon (int mode)
{
uint8_t *lbpLCDWF;
lbpLCDWF = (uint8_t *)&LCD->WF8B[0];
if (mode==1){lbpLCDWF[(uint8_t)WF_ORDERING_TABLE[7]]|=1;}
else {lbpLCDWF[(uint8_t)WF_ORDERING_TABLE[7]]&=~1;}
}
void SLCD::clear()
{
All_Segments(0);
}