orhanli1
Junior Member level 1
Hi, everybody
I am working with MSP430FG461H Board.I have a code that author John Davies used in his book.I want to use this code in my different projects like
#include <LCDutils.h> or in a different way.
what should i do.i don't know creating library.I am beginner please help me explicitly and step by step.
Thanks.
Best regards.
I am working with MSP430FG461H Board.I have a code that author John Davies used in his book.I want to use this code in my different projects like
#include <LCDutils.h> or in a different way.
what should i do.i don't know creating library.I am beginner please help me explicitly and step by step.
Code C++ - [expand] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 // LCDutils.c - functions for on SBLCDA4 on TI Experimenter's Board // J H Davies, 2007-06-03 // IAR Kickstart version 3.42A //---------------------------------------------------------------------- #include <io430xG46x.h> // Specific device #include <stdint.h> // Integers of defined sizes #include "LCDutils.h" // SBLCDA4 utility functions //---------------------------------------------------------------------- #define LCDDIGITS 7 // Number of digits in display #define LCDMEMS 11 // LCD memories used (3-13) // Pointer to LCD memory used: allows use of array LCDMem[] uint8_t * const LCDMem = (uint8_t *) &LCDM3; // LCD segment definitions (SoftBaugh SBLCDA4) #define SEG_A BIT0 // AAAA #define SEG_B BIT1 // F B #define SEG_C BIT2 // F B #define SEG_D BIT3 // GGGG #define SEG_E BIT6 // E C #define SEG_F BIT4 // E C #define SEG_G BIT5 // DDDD #define SEG_H BIT7 // colon, point etc // Patterns for hexadecimal characters const uint8_t LCDHexChar[] = { SEG_A | SEG_B | SEG_C | SEG_D | SEG_E | SEG_F, // "0" SEG_B | SEG_C, // "1" SEG_A | SEG_B | SEG_D | SEG_E | SEG_G, // "2" SEG_A | SEG_B | SEG_C | SEG_D | SEG_G, // "3" SEG_B | SEG_C | SEG_F | SEG_G, // "4" SEG_A | SEG_C | SEG_D | SEG_F | SEG_G, // "5" SEG_A | SEG_C | SEG_D | SEG_E | SEG_F | SEG_G, // "6" SEG_A | SEG_B | SEG_C, // "7" SEG_A | SEG_B | SEG_C | SEG_D | SEG_E | SEG_F | SEG_G, // "8" SEG_A | SEG_B | SEG_C | SEG_D | SEG_F | SEG_G, // "9" SEG_A | SEG_B | SEG_C | SEG_E | SEG_F | SEG_G, // "A" SEG_C | SEG_D | SEG_E | SEG_F | SEG_G, // "b" SEG_A | SEG_D | SEG_E | SEG_F, // "C" SEG_B | SEG_C | SEG_D | SEG_E | SEG_G, // "d" SEG_A | SEG_D | SEG_E | SEG_F | SEG_G, // "E" SEG_A | SEG_E | SEG_F | SEG_G, // "F" }; // More useful patterns const uint8_t LCDhexChar = SEG_C | SEG_E | SEG_F | SEG_G; const uint8_t LCDAMChar = SEG_A | SEG_B | SEG_C | SEG_E | SEG_F | SEG_G; const uint8_t LCDPMChar = SEG_A | SEG_B | SEG_E | SEG_F | SEG_G; const uint8_t LCDMinusChar = SEG_G; const uint8_t LCDEChar = SEG_A | SEG_D | SEG_E | SEG_F | SEG_G; const uint8_t LCDHChar = SEG_B | SEG_C | SEG_E | SEG_F | SEG_G; const uint8_t LCDhChar = SEG_C | SEG_E | SEG_F | SEG_G; const uint8_t LCDLChar = SEG_D | SEG_E | SEG_F; const uint8_t LCDOChar = SEG_A | SEG_B | SEG_C | SEG_D | SEG_E | SEG_F; const uint8_t LCDoChar = SEG_C | SEG_D | SEG_E | SEG_G; const uint8_t LCDrChar = SEG_E | SEG_G; const uint8_t LCDBlankChar = 0; // Segments of "digit 10", half-digit on right plus special symbols #define ONESEG BIT3 // '1' (only one logical segment) #define DOLLARSEG BIT4 // '$' #define ERRORSEG BIT5 // 'E' marker #define MINUSSEG BIT6 // '-' marker #define MEMSEG BIT7 // 'M' marker //---------------------------------------------------------------------- // Initialize SBLCDA4 //---------------------------------------------------------------------- void LCDInit (void) { int i; for(i = 0; i < LCDMEMS; ++i) { // Clear LCD memory used LCDMem[i] = 0; } P5SEL = BIT4|BIT3|BIT2; // Select COM[3:1] function LCDAPCTL0 = LCDS4|LCDS8|LCDS12|LCDS16|LCDS20|LCDS24; // Enable LCD segs 4-27 (4-25 used) LCDAVCTL0 = 0; // No charge pump, everything internal LCDACTL = LCDFREQ_128 | LCD4MUX | LCDSON | LCDON; // ACLK/128, 4mux, segments on, LCD_A on } //---------------------------------------------------------------------- // Display word in hexadecimal, 4 digits followed by 'h' (or 'H') //---------------------------------------------------------------------- #define LCDDIGITS 7 // Number of digits in display void DisplayHex (uint16_t HexValue) { uint8_t i; // Index for LCD array LCDMem[0] = LCDhChar; // 'h' for hexadecimal on right for (i = 1; i <= 4; ++i) { // Display 4 hex digits LCDMem[i] = LCDHexChar[HexValue & 0x000F]; HexValue >>= 4; // Move next nibble into position } while (i < LCDDIGITS) { // Clear more significant digits LCDMem[i++] = LCDBlankChar; // of numerical display } } //---------------------------------------------------------------------- // Display unsigned, 16-bit integer (uint16_t) // Convert to BCD and display // Leading zeros suppressed; BCD value does not exceed 5 digits //---------------------------------------------------------------------- void DisplayUint (uint16_t UintValue) { uint8_t i; // Index for LCD array uint32_t BCDValue; // Value converted bin to BCD BCDValue = UintToBCD (UintValue); // Convert binary to BCD i = 0; // Index for LCD memories do { // Store pattern for next digit LCDMem[i++] = LCDHexChar[BCDValue & 0x000F]; BCDValue >>= 4; // Move next nibble down } while (BCDValue > 0); // (Always display first digit) while (i < LCDDIGITS) { // Clear more significant digits LCDMem[i++] = LCDBlankChar; // of numerical display } } //---------------------------------------------------------------------- // Display unsigned, 32-bit integer (uint32_t) up to 19,999,999 // Convert to BCD if it fits and display with leading zeros suppressed //---------------------------------------------------------------------- void DisplayUlint (uint32_t UlintValue) { uint8_t i; // Index for LCD array uint32_t BCDValue; // Value converted bin to BCD if (UlintValue <= 9999999) { BCDValue = UlintToBCD (UlintValue); // Convert binary to BCD i = 0; // Index for LCD memories do { // Store pattern for next digit LCDMem[i++] = LCDHexChar[BCDValue & 0x000F]; BCDValue >>= 4; // Move next nibble down } while (BCDValue > 0); // (Always display first digit) while (i < LCDDIGITS) { // Clear more significant digits LCDMem[i++] = LCDBlankChar; // of numerical display } LCDMem[10] = LCDBlankChar; // Special segment for "1" } else if (UlintValue <= 19999999) { // Needs special treatment BCDValue = UlintToBCD (UlintValue); // Convert binary to BCD for (i = 0; i < LCDDIGITS; ++i) { LCDMem[i] = LCDHexChar[BCDValue & 0x000F]; BCDValue >>= 4; // Move next nibble down } LCDMem[10] = ONESEG; // Special segment for "1" } else { DisplayErr(); // Indicate overflow LCDMem[10] = LCDBlankChar; // Special segment for "1" } } //---------------------------------------------------------------------- // Display signed, 16-bit integer (int16_t) // Strip sign, convert unsigned value to BCD and display // Leading zeros suppressed; BCD value does not exceed 5 digits //---------------------------------------------------------------------- void DisplayInt (int16_t IntValue) { uint8_t i; // Index for LCD array uint32_t BCDValue; // Value converted bin to BCD enum {plus, minus} sign; if (IntValue >= 0) { // Keep track of sign sign = plus; } else { sign = minus; IntValue = -IntValue; // Conversion needs IntValue>=0 } BCDValue = UintToBCD (IntValue); // Convert binary to BCD i = 0; // Index for LCD memories do { // Store pattern for next digit LCDMem[i++] = LCDHexChar[BCDValue & 0x000F]; BCDValue >>= 4; // Move next nibble down } while (BCDValue > 0); // (Always display first digit) if (sign == minus) { LCDMem[i++] = LCDMinusChar; // Prepend minus sign } while (i < LCDDIGITS) { // Clear more significant digits LCDMem[i++] = LCDBlankChar; // of numerical display } } //---------------------------------------------------------------------- // Display line of hyphens ----- across LCD to show that it is alive //---------------------------------------------------------------------- void DisplayLine (void) { uint8_t i; // Index for LCD array for (i = 0; i < LCDDIGITS; ++i) { // Step through digits LCDMem[i] = LCDMinusChar; // of numerical display } } //---------------------------------------------------------------------- // Display "Error" on LCD //---------------------------------------------------------------------- void DisplayErr (void) { uint8_t i; // Index for LCD array LCDMem[0] = LCDrChar; LCDMem[1] = LCDoChar; LCDMem[2] = LCDrChar; LCDMem[3] = LCDrChar; LCDMem[4] = LCDEChar; for (i = 5; i < LCDDIGITS; ++i) { // Step through digits LCDMem[i] = LCDBlankChar; // of numerical display } } //---------------------------------------------------------------------- // Display "HELLO" on LCD (need a less clumsy routine?) //---------------------------------------------------------------------- void DisplayHello (void) { uint8_t i; // Index for LCD array LCDMem[0] = LCDOChar; LCDMem[1] = LCDLChar; LCDMem[2] = LCDLChar; LCDMem[3] = LCDEChar; LCDMem[4] = LCDHChar; for (i = 5; i < LCDDIGITS; ++i) { // Step through digits LCDMem[i] = LCDBlankChar; // of numerical display } }
Thanks.
Best regards.