ECE 111 At Oregon State University
/
SLCD_KL46Z
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SLCD.cpp
00001 #include "SLCD.h" 00002 #include "LCDconfig.h" 00003 00004 00005 const uint8_t WF_ORDERING_TABLE[ ] = { 00006 CHAR1a, // LCD81 --- Pin:5 LCDnAddress=51 00007 CHAR1b, // LCD82 --- Pin:6 LCDnAddress=52 00008 CHAR2a, // LCD83 --- Pin:7 LCDnAddress=53 00009 CHAR2b, // LCD84 --- Pin:8 LCDnAddress=54 00010 CHAR3a, // LCD85 --- Pin:9 LCDnAddress=55 00011 CHAR3b, // LCD86 --- Pin:10 LCDnAddress=56 00012 CHAR4a, // LCD87 --- Pin:11 LCDnAddress=57 00013 CHAR4b, // LCD88 --- Pin:12 LCDnAddress=58 00014 CHARCOM0, // LCD77 --- Pin:1 LCDnAddress=4D 00015 CHARCOM1, // LCD78 --- Pin:2 LCDnAddress=4E 00016 CHARCOM2, // LCD79 --- Pin:3 LCDnAddress=4F 00017 CHARCOM3, // LCD80 --- Pin:4 LCDnAddress=50 00018 }; 00019 00020 const char ASCII_TO_WF_CODIFICATION_TABLE [ ] = { 00021 00022 /* 00023 segA 00024 ________ 00025 | | 00026 segF | | segB 00027 | | 00028 -segG-- 00029 | | 00030 segE | | segC 00031 |________| 00032 segD 00033 */ 00034 00035 ( SEGD+ SEGE+ SEGF+!SEGG) , ( SEGC+ SEGB+ SEGA) ,//Char = 0, offset=0 00036 (!SEGD+!SEGE+!SEGF+!SEGG) , ( SEGC+ SEGB+!SEGA) ,//Char = 1, offset=4 00037 ( SEGD+ SEGE+!SEGF+ SEGG) , (!SEGC+ SEGB+ SEGA) ,//Char = 2, offset=8 00038 ( SEGD+!SEGE+!SEGF+ SEGG) , ( SEGC+ SEGB+ SEGA) ,//Char = 3, offset=12 00039 (!SEGD+!SEGE+ SEGF+ SEGG) , ( SEGC+ SEGB+!SEGA) ,//Char = 4, offset=16 00040 ( SEGD+!SEGE+ SEGF+ SEGG) , ( SEGC+!SEGB+ SEGA) ,//Char = 5, offset=20 00041 ( SEGD+ SEGE+ SEGF+ SEGG) , ( SEGC+!SEGB+ SEGA) ,//Char = 6, offset=24 00042 (!SEGD+!SEGE+!SEGF+!SEGG) , ( SEGC+ SEGB+ SEGA) ,//Char = 7, offset=28 00043 ( SEGD+ SEGE+ SEGF+ SEGG) , ( SEGC+ SEGB+ SEGA) ,//Char = 8, offset=32 00044 ( SEGD+!SEGE+ SEGF+ SEGG) , ( SEGC+ SEGB+ SEGA) ,//Char = 9, offset=36 00045 (!SEGD+!SEGE+!SEGF+!SEGG) , (!SEGC+!SEGB+!SEGA) ,//Char = :, offset=40 00046 (!SEGD+!SEGE+!SEGF+!SEGG) , (!SEGC+!SEGB+!SEGA) ,//Char = ;, offset=44 00047 (!SEGD+!SEGE+!SEGF+!SEGG) , (!SEGC+!SEGB+!SEGA) ,//Char = <, offset=48 00048 ( SEGD+!SEGE+!SEGF+ SEGG) , (!SEGC+!SEGB+!SEGA) ,//Char = =, offset=52 00049 (!SEGD+!SEGE+!SEGF+!SEGG) , (!SEGC+!SEGB+!SEGA) ,//Char = >, offset=56 00050 (!SEGD+!SEGE+!SEGF+!SEGG) , (!SEGC+!SEGB+ SEGA) ,//Char = ?, offset=60 00051 ( SEGD+ SEGE+ SEGF+ SEGG) , ( SEGC+ SEGB+ SEGA) ,//Char = @, offset=64 00052 (!SEGD+ SEGE+ SEGF+ SEGG) , ( SEGC+ SEGB+ SEGA) ,//Char = A, offset=68 00053 ( SEGD+ SEGE+ SEGF+ SEGG) , ( SEGC+!SEGB+!SEGA) ,//Char = B, offset=72 00054 ( SEGD+ SEGE+ SEGF+!SEGG) , (!SEGC+!SEGB+ SEGA) ,//Char = C, offset=76 00055 ( SEGD+ SEGE+!SEGF+ SEGG) , ( SEGC+ SEGB+!SEGA) ,//Char = D, offset=80 00056 ( SEGD+ SEGE+ SEGF+ SEGG) , (!SEGC+!SEGB+ SEGA) ,//Char = E, offset=84 00057 (!SEGD+ SEGE+ SEGF+ SEGG) , (!SEGC+!SEGB+ SEGA) ,//Char = F, offset=88 00058 ( SEGD+ SEGE+ SEGF+ SEGG) , ( SEGC+!SEGB+ SEGA) ,//Char = G, offset=92 00059 (!SEGD+ SEGE+ SEGF+ SEGG) , ( SEGC+ SEGB+!SEGA) ,//Char = H, offset=96 00060 (!SEGD+!SEGE+!SEGF+!SEGG) , ( SEGC+!SEGB+!SEGA) ,//Char = I, offset=100 00061 ( SEGD+ SEGE+!SEGF+!SEGG) , ( SEGC+ SEGB+!SEGA) ,//Char = J, offset=104 00062 (!SEGD+ SEGE+ SEGF+ SEGG) , ( SEGC+!SEGB+ SEGA) ,//Char = K, offset=108 00063 ( SEGD+ SEGE+ SEGF+!SEGG) , (!SEGC+!SEGB+!SEGA) ,//Char = L, offset=112 00064 (!SEGD+ SEGE+ SEGF+!SEGG) , ( SEGC+ SEGB+ SEGA) ,//Char = M, offset=116 00065 (!SEGD+ SEGE+!SEGF+ SEGG) , ( SEGC+!SEGB+!SEGA) ,//Char = N, offset=120 00066 ( SEGD+ SEGE+!SEGF+ SEGG) , ( SEGC+!SEGB+!SEGA) ,//Char = O, offset=124 00067 (!SEGD+ SEGE+ SEGF+ SEGG) , (!SEGC+ SEGB+ SEGA) ,//Char = P, offset=128 00068 ( SEGD+!SEGE+ SEGF+ SEGG) , ( SEGC+ SEGB+ SEGA) ,//Char = Q, offset=132 00069 (!SEGD+ SEGE+!SEGF+ SEGG) , (!SEGC+!SEGB+!SEGA) ,//Char = R, offset=136 00070 ( SEGD+!SEGE+ SEGF+ SEGG) , ( SEGC+!SEGB+ SEGA) ,//Char = S, offset=140 00071 ( SEGD+ SEGE+ SEGF+ SEGG) , (!SEGC+!SEGB+!SEGA) ,//Char = T, offset=144 00072 ( SEGD+ SEGE+ SEGF+!SEGG) , ( SEGC+ SEGB+!SEGA) ,//Char = U, offset=148 00073 ( SEGD+ SEGE+!SEGF+!SEGG) , ( SEGC+!SEGB+!SEGA) ,//Char = V, offset=152 00074 ( SEGD+ SEGE+ SEGF+!SEGG) , ( SEGC+ SEGB+!SEGA) ,//Char = W, offset=156 00075 (!SEGD+ SEGE+ SEGF+ SEGG) , ( SEGC+ SEGB+!SEGA) ,//Char = X, offset=160 00076 ( SEGD+!SEGE+ SEGF+ SEGG) , ( SEGC+ SEGB+!SEGA) ,//Char = Y, offset=164 00077 ( SEGD+!SEGE+!SEGF+ SEGG) , (!SEGC+!SEGB+!SEGA) ,//Char = Z, offset=168 00078 ( SEGD+!SEGE+!SEGF+!SEGG) , (!SEGC+!SEGB+ SEGA) ,//Char = [, offset=172 00079 ( SEGD+!SEGE+!SEGF+!SEGG) , (!SEGC+!SEGB+ SEGA) ,//Char = \, offset=176 00080 ( SEGD+!SEGE+!SEGF+!SEGG) , (!SEGC+!SEGB+ SEGA) ,//Char = ], offset=180 00081 ( SEGD+!SEGE+!SEGF+!SEGG) , (!SEGC+!SEGB+ SEGA) ,//Char = ^, offset=184 00082 ( SEGD+!SEGE+!SEGF+!SEGG) , (!SEGC+!SEGB+ SEGA) ,//Char = _, offset=188 00083 ( SEGD+!SEGE+!SEGF+!SEGG) , (!SEGC+!SEGB+ SEGA) ,//Char = `, offset=192 00084 }; 00085 00086 SLCD::SLCD() 00087 { 00088 init(); 00089 CharPosition = 0; 00090 } 00091 00092 void SLCD::init() 00093 { 00094 SIM->SCGC5 |= SIM_SCGC5_SLCD_MASK | SIM_SCGC5_PORTB_MASK | SIM_SCGC5_PORTC_MASK | SIM_SCGC5_PORTD_MASK | SIM_SCGC5_PORTE_MASK; 00095 00096 // configure pins for LCD operation 00097 PORTC->PCR[20] = 0x00000000; //VLL2 00098 PORTC->PCR[21] = 0x00000000; //VLL1 00099 PORTC->PCR[22] = 0x00000000; //VCAP2 00100 PORTC->PCR[23] = 0x00000000; //VCAP1 00101 // Enable IRCLK 00102 MCG->C1 |= MCG_C1_IRCLKEN_MASK | MCG_C1_IREFSTEN_MASK; 00103 MCG->C2 |= MCG_C2_IRCS_MASK ; //0 32KHZ internal reference clock; 1= 4MHz irc 00104 00105 //Check if the Fast reference has its divide by 2 enabled (default): 00106 if ((MCG->SC & MCG_SC_FCRDIV_MASK) != 1<<1) 00107 error("Invalid clock configuration for SLCD\n"); 00108 LCD->GCR = 0x0; 00109 LCD->AR = 0x0; 00110 00111 // LCD configurartion 00112 LCD->GCR = ( LCD_GCR_RVEN_MASK*_LCDRVEN 00113 | LCD_GCR_RVTRIM(_LCDRVTRIM) //0-15 00114 | LCD_GCR_CPSEL_MASK*_LCDCPSEL 00115 | LCD_GCR_LADJ(_LCDLOADADJUST) //0-3 00116 | LCD_GCR_VSUPPLY_MASK*_LCDSUPPLY //0-1 00117 |!LCD_GCR_FDCIEN_MASK 00118 | LCD_GCR_ALTDIV(1) //divide by something 00119 |!LCD_GCR_LCDDOZE_MASK 00120 |!LCD_GCR_LCDSTP_MASK 00121 |!LCD_GCR_LCDEN_MASK //WILL BE ENABLE ON SUBSEQUENT STEP 00122 | LCD_GCR_SOURCE_MASK*1 00123 | LCD_GCR_ALTSOURCE_MASK*0 00124 | LCD_GCR_LCLK(0) //0-7 00125 | LCD_GCR_DUTY(_LCDDUTY) //0-7 00126 ); 00127 uint8_t i; 00128 uint32_t *p_pen; 00129 uint8_t pen_offset; // 0 or 1 00130 uint8_t pen_bit; // 0 to 31 00131 LCD->PEN[0] = 0x0; 00132 LCD->PEN[1] = 0x0; 00133 LCD->BPEN[0] = 0x0; 00134 LCD->BPEN[1] = 0x0; 00135 p_pen = (uint32_t *)&LCD->PEN[0]; 00136 for (i=0; i<_LCDUSEDPINS; i++) { 00137 pen_offset = WF_ORDERING_TABLE[i]/32; 00138 pen_bit = WF_ORDERING_TABLE[i]%32; 00139 p_pen[pen_offset] |= 1 << pen_bit; 00140 if (i>= _LCDFRONTPLANES) { // Pin is a backplane 00141 p_pen[pen_offset+2] |= 1 << pen_bit; // Enable BPEN 00142 LCD->WF8B[(uint8_t)WF_ORDERING_TABLE[i]] = 1 << (i - _LCDFRONTPLANES); // fill with 0x01, 0x02, etc 00143 } 00144 } 00145 LCD->GCR |= LCD_GCR_LCDEN_MASK; 00146 } 00147 00148 int SLCD::_putc(int c) 00149 { 00150 Write_Char(c); 00151 return 0; 00152 } 00153 00154 void SLCD::Write_Char (char lbValue) 00155 { 00156 if (CharPosition >= _CHARNUM) 00157 CharPosition = 0; 00158 00159 if (lbValue == '.') { 00160 // Use built-in dot 00161 DP(CharPosition-1, true); 00162 return; 00163 } 00164 00165 uint8_t char_val; 00166 uint8_t temp; 00167 uint8_t *lbpLCDWF; 00168 uint8_t lbCounter; 00169 uint16_t arrayOffset; 00170 uint8_t position; 00171 00172 lbpLCDWF = (uint8_t *)&LCD->WF8B[0]; 00173 /* only ascii character if value not writeable write as @ */ 00174 if (lbValue>='a' && lbValue<='z') { 00175 lbValue -= 32; // UpperCase 00176 } 00177 if (lbValue<ASCCI_TABLE_START || lbValue >ASCCI_TABLE_END) { 00178 lbValue = BLANK_CHARACTER; // default value as space 00179 } 00180 lbValue -=ASCCI_TABLE_START; // Remove the offset to search in the ascci table 00181 arrayOffset = (lbValue * _CHAR_SIZE); // Compensate matrix offset 00182 // ensure bLCD position is in valid limit 00183 lbCounter = 0; //number of writings to complete one char 00184 while (lbCounter<_CHAR_SIZE) { 00185 position = (CharPosition) *_LCDTYPE + lbCounter; 00186 temp=0; 00187 if (lbCounter==1) { 00188 temp = lbpLCDWF[WF_ORDERING_TABLE[position]] & 0x01;//bit 0 has the special symbol information 00189 } 00190 char_val = ASCII_TO_WF_CODIFICATION_TABLE[arrayOffset + lbCounter]; 00191 lbpLCDWF[WF_ORDERING_TABLE[position]] = char_val | temp; 00192 // if (char_val==0) lbCounter = _CHAR_SIZE; //end of this character 00193 lbCounter++; 00194 } 00195 CharPosition++; 00196 } 00197 00198 void SLCD::Home() 00199 { 00200 CharPosition = 0; 00201 } 00202 00203 void SLCD::Contrast (uint8_t lbContrast) 00204 { 00205 lbContrast &= 0x0F; //Forced to the only values accepted 00206 LCD->GCR |= LCD_GCR_RVTRIM(lbContrast); 00207 } 00208 00209 void SLCD::clear() 00210 { 00211 All_Segments(0); 00212 } 00213 00214 void SLCD::All_Segments (int mode) 00215 { 00216 uint8_t lbTotalBytes = _CHARNUM * _LCDTYPE; 00217 uint8_t lbCounter=0; 00218 uint8_t *lbpLCDWF; 00219 00220 lbpLCDWF = (uint8_t *)&LCD->WF8B[0]; 00221 while (lbCounter < lbTotalBytes) { 00222 if (mode==1) { 00223 lbpLCDWF[(uint8_t)WF_ORDERING_TABLE[lbCounter++]]=_ALLON; 00224 } else { 00225 lbpLCDWF[WF_ORDERING_TABLE[lbCounter++]]=0; 00226 } 00227 } 00228 } 00229 00230 void SLCD::DP(int pos, bool on) 00231 { 00232 uint8_t *lbpLCDWF; 00233 int tableLoc; 00234 switch (pos) { 00235 case 0: 00236 tableLoc = 1; 00237 break; 00238 case 1: 00239 tableLoc = 3; 00240 break; 00241 case 2: 00242 tableLoc = 5; 00243 break; 00244 default: 00245 return; // Bad position 00246 } 00247 lbpLCDWF = (uint8_t *)&LCD->WF8B[0]; 00248 if (on) { 00249 lbpLCDWF[(uint8_t)WF_ORDERING_TABLE[tableLoc]]|=1; 00250 } else { 00251 lbpLCDWF[(uint8_t)WF_ORDERING_TABLE[tableLoc]]&=~1; 00252 } 00253 } 00254 00255 void SLCD::DP1 (int mode) 00256 { 00257 DP(0, mode==1); 00258 } 00259 00260 void SLCD::DP2 (int mode) 00261 { 00262 DP(1, mode==1); 00263 } 00264 00265 void SLCD::DP3 (int mode) 00266 { 00267 DP(2, mode==1); 00268 } 00269 00270 void SLCD::Colon (bool on) 00271 { 00272 uint8_t *lbpLCDWF; 00273 lbpLCDWF = (uint8_t *)&LCD->WF8B[0]; 00274 if (on) { 00275 lbpLCDWF[(uint8_t)WF_ORDERING_TABLE[7]]|=1; 00276 } else { 00277 lbpLCDWF[(uint8_t)WF_ORDERING_TABLE[7]]&=~1; 00278 } 00279 } 00280 00281 void SLCD::blink(int blink) 00282 { 00283 if (( blink > 7) || (blink < 0)) 00284 LCD->AR &= ~LCD_AR_BLINK_MASK; 00285 else 00286 LCD->AR |= LCD_AR_BLINK_MASK | blink; 00287 } 00288 00289 void SLCD::deepsleepEnable(bool enable) 00290 { 00291 MCG->C1 &= ~MCG_C1_IREFSTEN_MASK; 00292 MCG->C1 |= enable << MCG_C1_IREFSTEN_SHIFT; 00293 LCD->GCR &= ~LCD_GCR_LCDSTP_MASK; 00294 LCD->GCR |= (!enable) << LCD_GCR_LCDSTP_SHIFT; 00295 }
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