
VFD command test program
main.cpp@1:05518314979e, 2016-05-02 (annotated)
- Committer:
- kanpapa
- Date:
- Mon May 02 13:57:58 2016 +0000
- Revision:
- 1:05518314979e
- Parent:
- 0:b2dddd322c12
test version
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
kanpapa |
0:b2dddd322c12 | 1 | /* |
kanpapa |
0:b2dddd322c12 | 2 | |
kanpapa |
0:b2dddd322c12 | 3 | mbed VFD Control for GP1059A01 |
kanpapa |
0:b2dddd322c12 | 4 | |
kanpapa |
0:b2dddd322c12 | 5 | =============== |
kanpapa |
0:b2dddd322c12 | 6 | Status LED |
kanpapa |
0:b2dddd322c12 | 7 | ----------- |
kanpapa |
0:b2dddd322c12 | 8 | LED1: |
kanpapa |
0:b2dddd322c12 | 9 | LED2: |
kanpapa |
0:b2dddd322c12 | 10 | LED3: |
kanpapa |
0:b2dddd322c12 | 11 | LED4: |
kanpapa |
0:b2dddd322c12 | 12 | |
kanpapa |
0:b2dddd322c12 | 13 | =============== |
kanpapa |
0:b2dddd322c12 | 14 | GP1059A01 INTERFACE CONNECTION |
kanpapa |
0:b2dddd322c12 | 15 | --------------- |
kanpapa |
0:b2dddd322c12 | 16 | 1 D0 2 D1 |
kanpapa |
0:b2dddd322c12 | 17 | 3 D2 4 D3 |
kanpapa |
0:b2dddd322c12 | 18 | 5 D4 6 D5 |
kanpapa |
0:b2dddd322c12 | 19 | 7 D6 8 D7 |
kanpapa |
0:b2dddd322c12 | 20 | 9 GND 10 INT |
kanpapa |
0:b2dddd322c12 | 21 | 11 WR 12 RD |
kanpapa |
0:b2dddd322c12 | 22 | 13 CS 14 C/D |
kanpapa |
0:b2dddd322c12 | 23 | 15 5V 16 5V |
kanpapa |
0:b2dddd322c12 | 24 | 17 5V 18 GND |
kanpapa |
0:b2dddd322c12 | 25 | 19 GND 20 ebb(+70V) |
kanpapa |
0:b2dddd322c12 | 26 | |
kanpapa |
0:b2dddd322c12 | 27 | |
kanpapa |
0:b2dddd322c12 | 28 | |
kanpapa |
0:b2dddd322c12 | 29 | ===================== |
kanpapa |
0:b2dddd322c12 | 30 | mbed CONNECTION |
kanpapa |
0:b2dddd322c12 | 31 | --------------------- |
kanpapa |
0:b2dddd322c12 | 32 | mbed GP1059A01(I/O) |
kanpapa |
0:b2dddd322c12 | 33 | --------------------- |
kanpapa |
0:b2dddd322c12 | 34 | p5 1 (D0) I/O |
kanpapa |
0:b2dddd322c12 | 35 | p6 2 (D1) I/O |
kanpapa |
0:b2dddd322c12 | 36 | p7 3 (D2) I/O |
kanpapa |
0:b2dddd322c12 | 37 | p8 4 (D3) I/O |
kanpapa |
0:b2dddd322c12 | 38 | p9 5 (D4) I/O |
kanpapa |
0:b2dddd322c12 | 39 | p10 6 (D5) I/O |
kanpapa |
0:b2dddd322c12 | 40 | p11 7 (D6) I/O |
kanpapa |
0:b2dddd322c12 | 41 | p12 8 (D7) I/O |
kanpapa |
0:b2dddd322c12 | 42 | p13 10 (INT) O |
kanpapa |
0:b2dddd322c12 | 43 | p14 11 (WR) I |
kanpapa |
0:b2dddd322c12 | 44 | p15 12 (RD) I |
kanpapa |
0:b2dddd322c12 | 45 | p16 13 (CS) I |
kanpapa |
0:b2dddd322c12 | 46 | p17 14 (C/D) I |
kanpapa |
0:b2dddd322c12 | 47 | GND 9,18,19 (GND) |
kanpapa |
0:b2dddd322c12 | 48 | ===================== |
kanpapa |
0:b2dddd322c12 | 49 | |
kanpapa |
0:b2dddd322c12 | 50 | */ |
kanpapa |
0:b2dddd322c12 | 51 | |
kanpapa |
0:b2dddd322c12 | 52 | #include "mbed.h" |
kanpapa |
0:b2dddd322c12 | 53 | |
kanpapa |
0:b2dddd322c12 | 54 | Serial pc(USBTX, USBRX); |
kanpapa | 1:05518314979e | 55 | LocalFileSystem local("local"); |
kanpapa |
0:b2dddd322c12 | 56 | |
kanpapa |
0:b2dddd322c12 | 57 | // VFD DATA PORT |
kanpapa | 1:05518314979e | 58 | BusOut DATA(p5, p6, p7, p8, p9, p10, p11, p12); |
kanpapa |
0:b2dddd322c12 | 59 | // __ |
kanpapa |
0:b2dddd322c12 | 60 | // Write Signal (WR) |
kanpapa |
0:b2dddd322c12 | 61 | DigitalOut WR(p14); |
kanpapa |
0:b2dddd322c12 | 62 | // __ |
kanpapa |
0:b2dddd322c12 | 63 | // Read Signal (RD) |
kanpapa |
0:b2dddd322c12 | 64 | DigitalOut RD(p15); |
kanpapa |
0:b2dddd322c12 | 65 | // __ |
kanpapa |
0:b2dddd322c12 | 66 | // Chip Select Signal (CS) |
kanpapa |
0:b2dddd322c12 | 67 | DigitalOut CS(p16); |
kanpapa |
0:b2dddd322c12 | 68 | // _ |
kanpapa |
0:b2dddd322c12 | 69 | // Command / Data Select Signal (C/D) |
kanpapa |
0:b2dddd322c12 | 70 | DigitalOut CD(p17); |
kanpapa |
0:b2dddd322c12 | 71 | // |
kanpapa |
0:b2dddd322c12 | 72 | // Frame Signal |
kanpapa |
0:b2dddd322c12 | 73 | DigitalIn INT(p13); |
kanpapa |
0:b2dddd322c12 | 74 | |
kanpapa |
0:b2dddd322c12 | 75 | // LED Status |
kanpapa | 1:05518314979e | 76 | DigitalOut led1(LED1); |
kanpapa | 1:05518314979e | 77 | DigitalOut led2(LED2); |
kanpapa | 1:05518314979e | 78 | DigitalOut led3(LED3); |
kanpapa | 1:05518314979e | 79 | DigitalOut led4(LED4); |
kanpapa | 1:05518314979e | 80 | |
kanpapa |
0:b2dddd322c12 | 81 | |
kanpapa |
0:b2dddd322c12 | 82 | const uint8_t HIGH = 1; |
kanpapa |
0:b2dddd322c12 | 83 | const uint8_t LOW = 0; |
kanpapa |
0:b2dddd322c12 | 84 | const uint16_t MAX_ADDRESS = 0x01fff; |
kanpapa |
0:b2dddd322c12 | 85 | |
kanpapa | 1:05518314979e | 86 | FILE *fp; |
kanpapa | 1:05518314979e | 87 | char in_filename[] = "/local/rom1.bin"; |
kanpapa |
0:b2dddd322c12 | 88 | |
kanpapa |
0:b2dddd322c12 | 89 | void send_cmd(uint8_t cmd) |
kanpapa |
0:b2dddd322c12 | 90 | { |
kanpapa | 1:05518314979e | 91 | CD = HIGH; // C/D SET HIGH |
kanpapa | 1:05518314979e | 92 | DATA = cmd; // COMMAND SET |
kanpapa | 1:05518314979e | 93 | CS = LOW; // CS SET LOW |
kanpapa | 1:05518314979e | 94 | WR = LOW; // WR SET LOW |
kanpapa | 1:05518314979e | 95 | wait_us(2); // wait 2us |
kanpapa | 1:05518314979e | 96 | WR = HIGH; // WR SET HIGH |
kanpapa | 1:05518314979e | 97 | CS = HIGH; // CS SET HIGH |
kanpapa | 1:05518314979e | 98 | wait_us(4); // wait 4us |
kanpapa |
0:b2dddd322c12 | 99 | |
kanpapa |
0:b2dddd322c12 | 100 | return; |
kanpapa |
0:b2dddd322c12 | 101 | } |
kanpapa |
0:b2dddd322c12 | 102 | |
kanpapa |
0:b2dddd322c12 | 103 | void send_data(uint8_t data) |
kanpapa |
0:b2dddd322c12 | 104 | { |
kanpapa | 1:05518314979e | 105 | CD = LOW; // C/D SET HIGH |
kanpapa | 1:05518314979e | 106 | DATA = data; // DATA SET |
kanpapa | 1:05518314979e | 107 | CS = LOW; // CS SET LOW |
kanpapa | 1:05518314979e | 108 | WR = LOW; // WR SET LOW |
kanpapa | 1:05518314979e | 109 | wait_us(2); // wait 2us |
kanpapa | 1:05518314979e | 110 | WR = HIGH; // WR SET HIGH |
kanpapa | 1:05518314979e | 111 | CS = HIGH; // CS SET HIGH |
kanpapa | 1:05518314979e | 112 | wait_us(4); // wait 4us |
kanpapa |
0:b2dddd322c12 | 113 | |
kanpapa |
0:b2dddd322c12 | 114 | return; |
kanpapa |
0:b2dddd322c12 | 115 | } |
kanpapa |
0:b2dddd322c12 | 116 | |
kanpapa |
0:b2dddd322c12 | 117 | // Luminance Adjustment (06H) |
kanpapa |
0:b2dddd322c12 | 118 | void luminance_adjustment(uint8_t data) |
kanpapa |
0:b2dddd322c12 | 119 | { |
kanpapa |
0:b2dddd322c12 | 120 | send_cmd(6); |
kanpapa |
0:b2dddd322c12 | 121 | send_data(data); |
kanpapa |
0:b2dddd322c12 | 122 | |
kanpapa |
0:b2dddd322c12 | 123 | return; |
kanpapa |
0:b2dddd322c12 | 124 | } |
kanpapa |
0:b2dddd322c12 | 125 | |
kanpapa | 1:05518314979e | 126 | // 04H,05H,02H: Setting address of Write |
kanpapa |
0:b2dddd322c12 | 127 | void set_write_read_address(uint16_t address){ |
kanpapa |
0:b2dddd322c12 | 128 | send_cmd(4); // 04H: Setting lower address of Write-Read |
kanpapa | 1:05518314979e | 129 | send_data((uint8_t)(address & 0x0ff)); // mask upper address |
kanpapa |
0:b2dddd322c12 | 130 | |
kanpapa |
0:b2dddd322c12 | 131 | send_cmd(5); // 05H: Setting upper address of Write-Read |
kanpapa | 1:05518314979e | 132 | send_data((uint8_t)(address >> 8)); // 8bit shift |
kanpapa | 1:05518314979e | 133 | |
kanpapa | 1:05518314979e | 134 | send_cmd(2); // 02H: Data Write |
kanpapa |
0:b2dddd322c12 | 135 | |
kanpapa |
0:b2dddd322c12 | 136 | return; |
kanpapa |
0:b2dddd322c12 | 137 | } |
kanpapa |
0:b2dddd322c12 | 138 | |
kanpapa |
0:b2dddd322c12 | 139 | // 07H,08H: Setting address display started |
kanpapa |
0:b2dddd322c12 | 140 | void set_disp_start_address(uint16_t address){ |
kanpapa |
0:b2dddd322c12 | 141 | send_cmd(7); // 07H: Setting lower address display started |
kanpapa | 1:05518314979e | 142 | send_data((uint8_t)(address & 0x0ff)); |
kanpapa |
0:b2dddd322c12 | 143 | |
kanpapa |
0:b2dddd322c12 | 144 | send_cmd(8); // 08H: Setting upper address display started |
kanpapa |
0:b2dddd322c12 | 145 | send_data((uint8_t)(address >> 8)); |
kanpapa |
0:b2dddd322c12 | 146 | |
kanpapa |
0:b2dddd322c12 | 147 | return; |
kanpapa |
0:b2dddd322c12 | 148 | } |
kanpapa |
0:b2dddd322c12 | 149 | |
kanpapa |
0:b2dddd322c12 | 150 | // TEST PATTERN |
kanpapa |
0:b2dddd322c12 | 151 | void test_pattern(){ |
kanpapa | 1:05518314979e | 152 | led1 = 1; |
kanpapa | 1:05518314979e | 153 | set_disp_start_address(0); // Display address: 000000H |
kanpapa | 1:05518314979e | 154 | led1 = 0; |
kanpapa |
0:b2dddd322c12 | 155 | |
kanpapa | 1:05518314979e | 156 | led2 = 1; |
kanpapa | 1:05518314979e | 157 | luminance_adjustment(0x0f); // 100% |
kanpapa | 1:05518314979e | 158 | led2 = 0; |
kanpapa |
0:b2dddd322c12 | 159 | |
kanpapa | 1:05518314979e | 160 | for (uint16_t d = 0; d < 256 ; d++){ |
kanpapa | 1:05518314979e | 161 | led3 = 1; |
kanpapa | 1:05518314979e | 162 | set_write_read_address(0); // Start address: 000000H |
kanpapa | 1:05518314979e | 163 | led3 = 0; |
kanpapa |
0:b2dddd322c12 | 164 | |
kanpapa | 1:05518314979e | 165 | for (uint16_t i = 0; i < MAX_ADDRESS; i++){ |
kanpapa | 1:05518314979e | 166 | led4 = 1; |
kanpapa | 1:05518314979e | 167 | send_data(d); |
kanpapa | 1:05518314979e | 168 | led4 = 0; |
kanpapa | 1:05518314979e | 169 | } |
kanpapa |
0:b2dddd322c12 | 170 | } |
kanpapa |
0:b2dddd322c12 | 171 | |
kanpapa |
0:b2dddd322c12 | 172 | return; |
kanpapa |
0:b2dddd322c12 | 173 | } |
kanpapa |
0:b2dddd322c12 | 174 | |
kanpapa | 1:05518314979e | 175 | void test_datafile(){ |
kanpapa | 1:05518314979e | 176 | if ( NULL == (fp = fopen( in_filename, "r" )) ) { |
kanpapa | 1:05518314979e | 177 | pc.printf("File open error.\n"); |
kanpapa | 1:05518314979e | 178 | led1 = HIGH; |
kanpapa | 1:05518314979e | 179 | return; |
kanpapa | 1:05518314979e | 180 | } |
kanpapa | 1:05518314979e | 181 | |
kanpapa | 1:05518314979e | 182 | led1 = 1; |
kanpapa | 1:05518314979e | 183 | set_disp_start_address(0); // Display address: 000000H |
kanpapa | 1:05518314979e | 184 | led1 = 0; |
kanpapa | 1:05518314979e | 185 | |
kanpapa | 1:05518314979e | 186 | led2 = 1; |
kanpapa | 1:05518314979e | 187 | luminance_adjustment(0x0f); // 100% |
kanpapa | 1:05518314979e | 188 | led2 = 0; |
kanpapa | 1:05518314979e | 189 | |
kanpapa | 1:05518314979e | 190 | led3 = 1; |
kanpapa | 1:05518314979e | 191 | set_write_read_address(0); // Start address: 000000H |
kanpapa | 1:05518314979e | 192 | led3 = 0; |
kanpapa | 1:05518314979e | 193 | |
kanpapa | 1:05518314979e | 194 | char d[8]; // 1char 8byte buffer |
kanpapa | 1:05518314979e | 195 | int char_cnt = 0; |
kanpapa | 1:05518314979e | 196 | |
kanpapa | 1:05518314979e | 197 | // 8byte = 1CHAR |
kanpapa | 1:05518314979e | 198 | while(fgets(d, 8, fp) != NULL && char_cnt < 10) { |
kanpapa | 1:05518314979e | 199 | for (int byte_num = 0; byte_num < 8 ; byte_num++){ // byte |
kanpapa | 1:05518314979e | 200 | pc.printf("d[%d]:%02x ",byte_num,d[byte_num]); |
kanpapa | 1:05518314979e | 201 | uint8_t a = 0; |
kanpapa | 1:05518314979e | 202 | for (int bit_num = 7; bit_num >= 0; bit_num--){ // bit |
kanpapa | 1:05518314979e | 203 | if ((d[byte_num] & 0x80) != 0) { |
kanpapa | 1:05518314979e | 204 | a = a + (2 ^ bit_num); |
kanpapa | 1:05518314979e | 205 | } |
kanpapa | 1:05518314979e | 206 | d[byte_num] = d[byte_num] << 1; |
kanpapa | 1:05518314979e | 207 | pc.printf("a:%02x d:%02x ",a,d[byte_num]); |
kanpapa | 1:05518314979e | 208 | } |
kanpapa | 1:05518314979e | 209 | if ((d[byte_num] & 0x80) != 0) a++; |
kanpapa | 1:05518314979e | 210 | |
kanpapa | 1:05518314979e | 211 | led4 = 1; |
kanpapa | 1:05518314979e | 212 | pc.printf("A:%02x ",a); |
kanpapa | 1:05518314979e | 213 | send_data(a); |
kanpapa | 1:05518314979e | 214 | led4 = 0; |
kanpapa | 1:05518314979e | 215 | |
kanpapa | 1:05518314979e | 216 | for (int e = 0; e < 7 ; e++) send_data(0); |
kanpapa | 1:05518314979e | 217 | } |
kanpapa | 1:05518314979e | 218 | char_cnt++; |
kanpapa | 1:05518314979e | 219 | } |
kanpapa | 1:05518314979e | 220 | fclose(fp); |
kanpapa | 1:05518314979e | 221 | |
kanpapa | 1:05518314979e | 222 | return; |
kanpapa | 1:05518314979e | 223 | } |
kanpapa | 1:05518314979e | 224 | |
kanpapa |
0:b2dddd322c12 | 225 | void blink_LED() { |
kanpapa | 1:05518314979e | 226 | for (int i = 0 ; i < 5 ; i++) { |
kanpapa | 1:05518314979e | 227 | led4 = 1; |
kanpapa |
0:b2dddd322c12 | 228 | wait(0.2); |
kanpapa | 1:05518314979e | 229 | led4 = 0; |
kanpapa |
0:b2dddd322c12 | 230 | wait(0.2); |
kanpapa |
0:b2dddd322c12 | 231 | } |
kanpapa |
0:b2dddd322c12 | 232 | return; |
kanpapa |
0:b2dddd322c12 | 233 | } |
kanpapa |
0:b2dddd322c12 | 234 | |
kanpapa |
0:b2dddd322c12 | 235 | int main() { |
kanpapa |
0:b2dddd322c12 | 236 | |
kanpapa |
0:b2dddd322c12 | 237 | led1 = LOW; |
kanpapa |
0:b2dddd322c12 | 238 | led2 = LOW; |
kanpapa |
0:b2dddd322c12 | 239 | led3 = LOW; |
kanpapa | 1:05518314979e | 240 | led4 = LOW; |
kanpapa |
0:b2dddd322c12 | 241 | |
kanpapa |
0:b2dddd322c12 | 242 | CS = HIGH; |
kanpapa |
0:b2dddd322c12 | 243 | WR = HIGH; |
kanpapa |
0:b2dddd322c12 | 244 | RD = HIGH; |
kanpapa |
0:b2dddd322c12 | 245 | CD = HIGH; |
kanpapa |
0:b2dddd322c12 | 246 | |
kanpapa |
0:b2dddd322c12 | 247 | // Start Sign |
kanpapa |
0:b2dddd322c12 | 248 | blink_LED(); |
kanpapa |
0:b2dddd322c12 | 249 | |
kanpapa |
0:b2dddd322c12 | 250 | // TEST |
kanpapa | 1:05518314979e | 251 | //test_pattern(); |
kanpapa | 1:05518314979e | 252 | |
kanpapa | 1:05518314979e | 253 | test_datafile(); |
kanpapa |
0:b2dddd322c12 | 254 | |
kanpapa |
0:b2dddd322c12 | 255 | // END Sign |
kanpapa |
0:b2dddd322c12 | 256 | blink_LED(); |
kanpapa |
0:b2dddd322c12 | 257 | } |