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00038 #include "ht1632.h"
00039
00040
00041 void ht1632_setup_io() {
00042
00043 make_output(ht1632_cs1_port, ht1632_cs1_pin);
00044
00045 #if ht1632_displays > 1
00046 make_output(ht1632_cs2_port, ht1632_cs2_pin);
00047 #endif
00048 #if ht1632_displays > 2
00049 make_output(ht1632_cs3_port, ht1632_cs3_pin);
00050 #endif
00051 #if ht1632_displays > 3
00052 make_output(ht1632_cs4_port, ht1632_cs4_pin);
00053 #endif
00054
00055
00056 make_output(ht1632_data_port, ht1632_data_pin);
00057 make_output(ht1632_wr_port, ht1632_wr_pin);
00058 make_output(ht1632_rd_port, ht1632_rd_pin);
00059
00060 set_pin(ht1632_wr_port, ht1632_wr_pin);
00061 set_pin(ht1632_rd_port, ht1632_rd_pin);
00062 set_pin(ht1632_cs1_port, ht1632_cs1_pin);
00063 #if ht1632_displays > 1
00064 set_pin(ht1632_cs2_port, ht1632_cs2_pin);
00065 #endif
00066 #if ht1632_displays > 2
00067 set_pin(ht1632_cs3_port, ht1632_cs3_pin);
00068 #endif
00069 #if ht1632_displays > 3
00070 set_pin(ht1632_cs4_port, ht1632_cs4_pin);
00071 #endif
00072
00073 }
00074
00075 void ht1632_init(uns8 hw_config) {
00076
00077 ht1632_send_command(HT1632_CMD_SYS_DISABLE);
00078
00079
00080 ht1632_send_command(hw_config);
00081 ht1632_send_command(HT1632_CMD_CLK_MASTER_MODE);
00082 ht1632_send_command(HT1632_CMD_SYS_ENABLE);
00083 ht1632_send_command(HT1632_CMD_LEDS_ON);
00084 }
00085
00086 void ht1632_send_command(uns8 command) {
00087
00088 uns8 count;
00089
00090 clear_pin(ht1632_cs1_port, ht1632_cs1_pin);
00091 clear_pin(ht1632_cs2_port, ht1632_cs2_pin);
00092 clear_pin(ht1632_cs3_port, ht1632_cs3_pin);
00093 clear_pin(ht1632_cs4_port, ht1632_cs4_pin);
00094
00095
00096
00097 set_pin (ht1632_data_port, ht1632_data_pin);
00098
00099 clear_pin(ht1632_wr_port, ht1632_wr_pin);
00100 set_pin (ht1632_wr_port, ht1632_wr_pin);
00101
00102
00103 clear_pin (ht1632_data_port, ht1632_data_pin);
00104
00105 clear_pin(ht1632_wr_port, ht1632_wr_pin);
00106 set_pin (ht1632_wr_port, ht1632_wr_pin);
00107
00108
00109 clear_pin (ht1632_data_port, ht1632_data_pin);
00110
00111 clear_pin(ht1632_wr_port, ht1632_wr_pin);
00112 set_pin (ht1632_wr_port, ht1632_wr_pin);
00113
00114
00115 for(count = 0 ; count < 8 ; count++) {
00116
00117 if (test_bit(command, 7)) {
00118 set_pin(ht1632_data_port, ht1632_data_pin);
00119 } else {
00120 clear_pin(ht1632_data_port, ht1632_data_pin);
00121 }
00122
00123
00124 clear_pin(ht1632_wr_port, ht1632_wr_pin);
00125 set_pin (ht1632_wr_port, ht1632_wr_pin);
00126
00127 command = command << 1;
00128 }
00129
00130
00131
00132 clear_pin(ht1632_wr_port, ht1632_wr_pin);
00133 set_pin (ht1632_wr_port, ht1632_wr_pin);
00134
00135
00136 set_pin(ht1632_cs1_port, ht1632_cs1_pin);
00137 set_pin(ht1632_cs2_port, ht1632_cs2_pin);
00138 set_pin(ht1632_cs3_port, ht1632_cs3_pin);
00139 set_pin(ht1632_cs4_port, ht1632_cs4_pin);
00140 }
00141
00142 void ht1632_write(uns8 mem_addr, uns8 data) {
00143
00144 uns8 count;
00145
00146 clear_pin(ht1632_cs1_port, ht1632_cs1_pin);
00147
00148
00149
00150
00151 set_pin (ht1632_data_port, ht1632_data_pin);
00152
00153 clear_pin(ht1632_wr_port, ht1632_wr_pin);
00154 set_pin (ht1632_wr_port, ht1632_wr_pin);
00155
00156
00157 clear_pin (ht1632_data_port, ht1632_data_pin);
00158
00159 clear_pin(ht1632_wr_port, ht1632_wr_pin);
00160 set_pin (ht1632_wr_port, ht1632_wr_pin);
00161
00162
00163 set_pin (ht1632_data_port, ht1632_data_pin);
00164
00165 clear_pin(ht1632_wr_port, ht1632_wr_pin);
00166 set_pin (ht1632_wr_port, ht1632_wr_pin);
00167
00168
00169 for(count = 0 ; count < 7 ; count++) {
00170 if (test_bit(mem_addr, 6)) {
00171 set_pin(ht1632_data_port, ht1632_data_pin);
00172 } else {
00173 clear_pin(ht1632_data_port, ht1632_data_pin);
00174 }
00175
00176
00177
00178 clear_pin(ht1632_wr_port, ht1632_wr_pin);
00179 set_pin (ht1632_wr_port, ht1632_wr_pin);
00180
00181 mem_addr = mem_addr << 1;
00182 }
00183
00184
00185 for(count = 0 ; count < 4 ; count++) {
00186 change_pin_var(ht1632_data_port, ht1632_data_pin, test_bit(data, 0));
00187
00188 clear_pin(ht1632_wr_port, ht1632_wr_pin);
00189 set_pin (ht1632_wr_port, ht1632_wr_pin);
00190
00191 data = data >> 1;
00192 }
00193
00194
00195
00196
00197
00198 set_pin(ht1632_cs1_port, ht1632_cs1_pin);
00199
00200
00201 }
00202
00203
00204
00205
00206 void ht1632_set_brightness(uns8 brightness) {
00207
00208 ht1632_send_command(0b10100000 | (brightness & 0b00001111));
00209 }
00210
00211 void ht1632_set_pixel(uns8 x, uns8 y, uns8 colour) {
00212
00213 uns8 common, panel, led_in_panel, inverted_x, out, mem_addr, bit_in_mem_addr, count, data;
00214
00215
00216
00217
00218
00219 common = 15 - y;
00220
00221
00222
00223
00224
00225
00226
00227
00228 bit_in_mem_addr = common & 0b00000011;
00229
00230
00231 mem_addr = x * 4 + common / 4;
00232
00233
00234 clear_pin(ht1632_cs1_port, ht1632_cs1_pin);
00235
00236
00237
00238
00239 set_pin (ht1632_data_port, ht1632_data_pin);
00240
00241 clear_pin(ht1632_wr_port, ht1632_wr_pin);
00242 set_pin (ht1632_wr_port, ht1632_wr_pin);
00243
00244
00245 clear_pin (ht1632_data_port, ht1632_data_pin);
00246
00247 clear_pin(ht1632_wr_port, ht1632_wr_pin);
00248 set_pin (ht1632_wr_port, ht1632_wr_pin);
00249
00250
00251 set_pin (ht1632_data_port, ht1632_data_pin);
00252
00253 clear_pin(ht1632_wr_port, ht1632_wr_pin);
00254 set_pin (ht1632_wr_port, ht1632_wr_pin);
00255
00256
00257 for(count = 0 ; count < 7 ; count++) {
00258 if (test_bit(mem_addr, 6)) {
00259 set_pin(ht1632_data_port, ht1632_data_pin);
00260 } else {
00261 clear_pin(ht1632_data_port, ht1632_data_pin);
00262 }
00263
00264
00265
00266 clear_pin(ht1632_wr_port, ht1632_wr_pin);
00267 set_pin (ht1632_wr_port, ht1632_wr_pin);
00268
00269
00270 mem_addr = mem_addr << 1;
00271 }
00272
00273
00274
00275
00276 make_input(ht1632_data_port, ht1632_data_pin);
00277
00278 for(count = 0 ; count < 4 ; count++) {
00279
00280 clear_pin(ht1632_rd_port, ht1632_rd_pin);
00281
00282 data = data >> 1;
00283 data.3 = test_pin(ht1632_data_port, ht1632_data_pin);
00284
00285 set_pin (ht1632_rd_port, ht1632_rd_pin);
00286
00287 }
00288
00289 make_output(ht1632_data_port, ht1632_data_pin);
00290
00291
00292 if (colour) {
00293 set_bit(data, bit_in_mem_addr);
00294 } else {
00295 clear_bit(data, bit_in_mem_addr);
00296 }
00297
00298
00299
00300
00301 for(count = 0 ; count < 4 ; count++) {
00302
00303 if (test_bit(data, 0)) {
00304 set_pin(ht1632_data_port, ht1632_data_pin);
00305 } else {
00306 clear_pin(ht1632_data_port, ht1632_data_pin);
00307 }
00308
00309
00310 clear_pin(ht1632_wr_port, ht1632_wr_pin);
00311 set_pin (ht1632_wr_port, ht1632_wr_pin);
00312
00313 data = data >> 1;
00314 }
00315
00316
00317
00318
00319
00320
00321 set_pin (ht1632_cs1_port, ht1632_cs1_pin);
00322
00323
00324 }
00325
00326 void ht1632_fill(uns8 colour) {
00327 uns8 mem_address;
00328 uns8 fill;
00329
00330 if (colour) {
00331 fill = 0b00001111;
00332 } else {
00333 fill = 0b00000000;
00334 }
00335
00336 for(mem_address = 0 ; mem_address < 96 ; mem_address++) {
00337 ht1632_write(mem_address, fill);
00338 }
00339 }
00340
00341 void ht1632_fill2(uns8 colour) {
00342
00343 uns16 count;
00344 ht1632_send_command(HT1632_CMD_LEDS_OFF);
00345 clear_pin(ht1632_cs1_port, ht1632_cs1_pin);
00346
00347
00348
00349
00350 set_pin (ht1632_data_port, ht1632_data_pin);
00351
00352 clear_pin(ht1632_wr_port, ht1632_wr_pin);
00353 set_pin (ht1632_wr_port, ht1632_wr_pin);
00354
00355
00356 clear_pin (ht1632_data_port, ht1632_data_pin);
00357
00358 clear_pin(ht1632_wr_port, ht1632_wr_pin);
00359 set_pin (ht1632_wr_port, ht1632_wr_pin);
00360
00361
00362 set_pin (ht1632_data_port, ht1632_data_pin);
00363
00364 clear_pin(ht1632_wr_port, ht1632_wr_pin);
00365 set_pin (ht1632_wr_port, ht1632_wr_pin);
00366
00367
00368 clear_pin(ht1632_data_port, ht1632_data_pin);
00369
00370
00371 for(count = 0 ; count < 7 ; count++) {
00372
00373
00374
00375 clear_pin(ht1632_wr_port, ht1632_wr_pin);
00376 set_pin (ht1632_wr_port, ht1632_wr_pin);
00377
00378
00379 }
00380 if (colour) {
00381 set_pin(ht1632_data_port, ht1632_data_pin);
00382 } else {
00383 clear_pin(ht1632_data_port, ht1632_data_pin);
00384 }
00385
00386
00387 for(count = 0 ; count < 384 ; count++) {
00388
00389 clear_pin(ht1632_wr_port, ht1632_wr_pin);
00390 set_pin (ht1632_wr_port, ht1632_wr_pin);
00391
00392
00393 }
00394
00395
00396 set_pin(ht1632_cs1_port, ht1632_cs1_pin);
00397 ht1632_send_command(HT1632_CMD_LEDS_ON);
00398
00399
00400 }
00401