Mercurial > public > hwos_code
annotate src/tft.asm @ 587:e81cf407261a
V2.97 SP1
| author | heinrichsweikamp |
|---|---|
| date | Sat, 10 Mar 2018 15:34:47 +0100 |
| parents | b455b31ce022 |
| children | ca4556fb60b9 |
| rev | line source |
|---|---|
| 0 | 1 ;============================================================================= |
| 2 ; | |
| 582 | 3 ; File tft.asm ## V2.97 |
| 0 | 4 ; |
| 5 ; Managing the TFT screen | |
| 6 ; | |
| 7 ; Copyright (c) 2011, JD Gascuel, HeinrichsWeikamp, all right reserved. | |
| 8 ;============================================================================= | |
| 9 ; HISTORY | |
| 10 ; 2011-05-24 : [jDG] Cleanups from initial Matthias code. | |
| 11 | |
| 275 | 12 #include "hwos.inc" |
| 0 | 13 #include "wait.inc" |
| 14 #include "varargs.inc" | |
| 15 #include "external_flash.inc" | |
| 16 #include "tft_outputs.inc" | |
| 17 #include "eeprom_rs232.inc" | |
| 18 | |
| 19 ;============================================================================= | |
| 20 ; Basic bit-level macros | |
| 21 | |
| 582 | 22 RD_H macro |
| 23 bsf tft_rd,0 | |
| 24 endm | |
| 0 | 25 |
| 582 | 26 RD_L macro |
| 27 bcf tft_rd,0 | |
| 28 endm | |
| 0 | 29 |
| 582 | 30 RS_H macro |
| 31 bsf tft_rs,0 | |
| 32 endm | |
| 0 | 33 |
| 582 | 34 RS_L macro |
| 35 bcf tft_rs,0 | |
| 36 endm | |
| 0 | 37 |
| 582 | 38 NCS_H macro |
| 39 bsf tft_cs,0 | |
| 40 endm | |
| 0 | 41 |
| 582 | 42 NCS_L macro |
| 43 bcf tft_cs,0 | |
| 44 endm | |
| 0 | 45 |
| 582 | 46 WR_H macro |
| 47 bsf tft_nwr,0 | |
| 48 endm | |
| 0 | 49 |
| 582 | 50 WR_L macro |
| 51 bcf tft_nwr,0 | |
| 52 endm | |
| 0 | 53 |
| 54 ;============================================================================= | |
| 582 | 55 ; Byte-level macros |
| 56 | |
| 0 | 57 Index_out macro low_b |
| 58 movlw low_b | |
| 59 rcall TFT_CmdWrite | |
| 60 endm | |
| 61 | |
| 62 Parameter_out macro high_b, low_b | |
| 63 movlw high_b | |
| 64 movwf PORTA ; Upper | |
| 65 movlw low_b | |
| 66 rcall TFT_DataWrite | |
| 67 endm | |
| 68 | |
| 69 | |
| 582 | 70 basic CODE |
| 71 | |
| 151 | 72 ;;============================================================================= |
| 73 ;; TFT_write_flash_image | |
| 74 ;; | |
| 75 ;; Inputs: FSR2 = EEPROM address / 256 | |
| 582 | 76 ;; win_left, win_top : image CENTER position |
| 151 | 77 ;; Outputs: win_height, win_width. |
| 582 | 78 ;; image copied on screen. |
| 151 | 79 ;; Trashed: PROD, hi, lo |
| 80 ;; | |
| 81 ; global TFT_write_flash_image | |
| 82 ;TFT_write_flash_image: | |
| 582 | 83 ; ; Get back the full 24bit EEPROM address |
| 84 ; clrf ext_flash_address+0 | |
| 85 ; movff FSR2L,ext_flash_address+1 | |
| 86 ; movf FSR2H,W | |
| 87 ; iorlw 0x30 | |
| 88 ; movwf ext_flash_address+2 | |
| 151 | 89 ; |
| 582 | 90 ; ; Read header: width and height |
| 91 ; global TFT_write_flash_image_addr | |
| 151 | 92 ;TFT_write_flash_image_addr: |
| 93 ; call ext_flash_read_block_start | |
| 582 | 94 ; movff SSP2BUF,win_width+0 |
| 95 ; movwf SSP2BUF ; Write to buffer to initiate new read | |
| 96 ; btfss SSP2STAT, BF ; Next byte ready ? | |
| 97 ; bra $-2 ; NO: wait... | |
| 98 ; movff SSP2BUF,win_width+1 | |
| 99 ; movwf SSP2BUF ; Write to buffer to initiate new read | |
| 100 ; btfss SSP2STAT, BF ; Next byte ready ? | |
| 101 ; bra $-2 ; NO: wait... | |
| 102 ; movff SSP2BUF,win_height | |
| 103 ; movwf SSP2BUF ; Write to buffer to initiate new read | |
| 104 ; btfss SSP2STAT, BF ; Next byte ready ? | |
| 105 ; bra $-2 ; NO: wait... | |
| 106 ; movff SSP2BUF,WREG ; drop 4th byte. | |
| 107 ; movwf SSP2BUF ; Write to buffer to initiate new read | |
| 108 ; btfss SSP2STAT, BF ; Next byte ready ? | |
| 109 ; bra $-2 ; NO: wait... | |
| 151 | 110 ; |
| 582 | 111 ; ; Sanity check on header to avoid badly uploaded images. |
| 112 ; iorwf WREG ; Check height < 256 | |
| 113 ; bnz TFT_write_flash_image_failed | |
| 114 ; movf win_width+1,W ; Check width < 512 | |
| 115 ; andlw 0xFE | |
| 116 ; bnz TFT_write_flash_image_failed | |
| 151 | 117 ; |
| 582 | 118 ; ; Center image on win_top, win_left values |
| 119 ; bcf STATUS,C ; Clear carry | |
| 120 ; rrcf win_height,W ; And get height/2 | |
| 121 ; subwf win_top,F ; top -= height/2 | |
| 122 ; rrcf win_width+1,W ; Get 9th bit into carry | |
| 123 ; rrcf win_width+0,W ; Get width/2 (in 0..320 range) | |
| 124 ; bcf STATUS,C | |
| 125 ; rrcf WREG,W ; Get width/2 in 0..160 range | |
| 126 ; subwf win_leftx2,F ; left -= width/2 | |
| 151 | 127 ; |
| 582 | 128 ; rcall TFT_box_write ; Inputs : win_top, win_leftx2, win_height, win_width(in 1..320 range) |
| 0 | 129 ; |
| 582 | 130 ; ; Compute number of pixels to move (result on 17 bits !) |
| 131 ; clrf TBLPTRU | |
| 132 ; movf win_width+0,W | |
| 133 ; mulwf win_height ; Result in PRODL:H | |
| 134 ; movf win_width+1,W | |
| 135 ; bz TFT_write_flash_image_1 ; width > 8bits ? | |
| 136 ; movf win_height,W ; YES: add extra | |
| 137 ; addwf PRODH,F | |
| 138 ; rlcf TBLPTRU ; And carry into upper register. | |
| 151 | 139 ;TFT_write_flash_image_1: |
| 582 | 140 ; incf PRODH,F ; pre-condition nested loops |
| 141 ; incf TBLPTRU,F | |
| 151 | 142 ; |
| 582 | 143 ; ; Write pixels |
| 144 ; Index_out 0x22 ; Frame Memory Data Write start | |
| 145 ; RS_H ; Data | |
| 151 | 146 ; |
| 147 ;TFT_write_flash_image_loop: | |
| 582 | 148 ; btfss SSP2STAT, BF ; Buffer full? |
| 149 ; bra $-2 ; NO: wait... | |
| 150 ; movff SSP2BUF,PORTH ; Read lo | |
| 151 ; movwf SSP2BUF ; Write to buffer to initiate new read | |
| 151 | 152 ; |
| 582 | 153 ; btfss SSP2STAT, BF ; Buffer full? |
| 154 ; bra $-2 ; NO: wait... | |
| 155 ; movff SSP2BUF,PORTA ; And read hi | |
| 156 ; movwf SSP2BUF ; Write to buffer to initiate new read | |
| 151 | 157 ; WR_L |
| 582 | 158 ; WR_H ; Write 1 Pixel |
| 151 | 159 ; |
| 160 ; decfsz PRODL,F | |
| 161 ; bra TFT_write_flash_image_loop | |
| 162 ; decfsz PRODH,F | |
| 163 ; bra TFT_write_flash_image_loop | |
| 164 ; decfsz TBLPTRU,F | |
| 165 ; bra TFT_write_flash_image_loop | |
| 166 ; | |
| 582 | 167 ; btfss SSP2STAT, BF ; Buffer full? |
| 168 ; bra $-2 ; No, wait | |
| 169 ; movf SSP2BUF,W ; Read dummy byte | |
| 151 | 170 ; |
| 582 | 171 ; bsf flash_ncs ; CS=1 |
| 172 ; movlw 0x00 ; NOP, to stop window mode | |
| 173 ; bra TFT_CmdWrite ; This routine "returns" | |
| 151 | 174 ; |
| 175 ; ;---- Draw a 4x4 red square in place of missing images... | |
| 176 ;TFT_write_flash_image_failed: | |
| 582 | 177 ; movlw -1 |
| 178 ; addwf win_leftx2,F | |
| 179 ; movlw -2 | |
| 180 ; addwf win_top,F | |
| 181 ; movlw 2 | |
| 182 ; movwf win_width+0 | |
| 183 ; clrf win_width+1 | |
| 184 ; movlw 4 | |
| 185 ; movwf win_height | |
| 186 ; movlw color_red | |
| 187 ; rcall TFT_set_color | |
| 188 ; goto TFT_box | |
| 151 | 189 ; |
| 190 ;;============================================================================= | |
| 0 | 191 |
| 582 | 192 global TFT_CmdWrite |
| 0 | 193 TFT_CmdWrite: |
| 582 | 194 RS_L ; Command |
| 195 clrf PORTA ; Upper | |
| 196 bcf INTCON,GIE | |
| 197 movwf PORTH ; Lower | |
| 0 | 198 WR_L |
| 582 | 199 WR_H ; Tick |
| 200 bsf INTCON,GIE | |
| 201 return | |
| 0 | 202 |
| 582 | 203 global TFT_DataWrite |
| 0 | 204 TFT_DataWrite: |
| 582 | 205 RS_H ; Data |
| 206 bcf INTCON,GIE | |
| 207 movwf PORTH ; Lower | |
| 0 | 208 WR_L |
| 582 | 209 WR_H ; Tick |
| 210 bsf INTCON,GIE | |
| 0 | 211 return |
| 212 | |
| 213 ;============================================================================= | |
| 582 | 214 |
| 215 global TFT_ClearScreen | |
| 0 | 216 TFT_ClearScreen: |
| 582 | 217 Index_out 0x50 ; Window Horizontal Start Address |
| 218 Parameter_out 0x00, 0x00 ; 0-239 | |
| 219 Index_out 0x51 ; Window Horizontal End Address | |
| 220 Parameter_out 0x00, 0xEF ; 0-239 | |
| 221 Index_out 0x52 ; Window Vertical Start Address | |
| 222 Parameter_out 0x00, 0x00 ; 0-319 | |
| 223 Index_out 0x53 ; Window Vertical End Address | |
| 224 Parameter_out 0x01, 0x3F ; 0-319 | |
| 225 Index_out 0x20 ; Frame Memory Horizontal Address | |
| 226 Parameter_out 0x00, 0x00 ; 0-239 | |
| 227 Index_out 0x21 ; Frame Memory Vertical Address | |
| 228 Parameter_out 0x01, 0x3F ; 0-319 | |
| 0 | 229 |
| 582 | 230 Index_out 0x22 ; Frame Memory Data Write start |
| 0 | 231 |
| 582 | 232 RD_H ; Not Read |
| 233 RS_H ; Data | |
| 234 NCS_L ; Not CS | |
| 235 clrf PORTH ; Data Lower | |
| 0 | 236 |
| 237 movlw d'10' | |
| 238 movwf tft_temp3 | |
| 239 TFT_ClearScreen2: | |
| 240 movlw d'30' | |
| 241 movwf tft_temp2 | |
| 242 TFT_ClearScreen3: | |
| 243 clrf tft_temp1 ; 30*10*256=76800 Pixels -> Clear complete 240*320 | |
| 582 | 244 bcf INTCON,GIE |
| 0 | 245 TFT_ClearScreen4: |
| 246 WR_L | |
| 247 WR_H ; Tick | |
| 248 decfsz tft_temp1,F | |
| 249 bra TFT_ClearScreen4 | |
| 582 | 250 bsf INTCON,GIE |
| 0 | 251 decfsz tft_temp2,F |
| 252 bra TFT_ClearScreen3 | |
| 253 decfsz tft_temp3,F | |
| 254 bra TFT_ClearScreen2 | |
| 582 | 255 |
| 256 movlw 0x00 ; NOP, to stop window mode | |
| 257 bra TFT_CmdWrite ; And return | |
| 258 | |
| 0 | 259 |
| 260 ;============================================================================= | |
| 582 | 261 |
| 262 global TFT_DisplayOff | |
| 0 | 263 TFT_DisplayOff: |
| 582 | 264 clrf CCPR1L ; PWM OFF |
| 0 | 265 clrf PORTA |
| 582 | 266 clrf PORTH |
| 267 RD_L ; LOW | |
| 0 | 268 nop |
| 582 | 269 RS_L ; LOW |
| 0 | 270 bcf tft_nwr |
| 271 nop | |
| 272 bcf tft_cs | |
| 273 nop | |
| 274 bcf tft_nreset | |
| 275 WAITMS d'1' | |
| 276 bsf tft_power ; inverted... | |
| 277 bcf lightsen_power ; power-down light sensor | |
| 278 return | |
| 279 | |
| 280 ; ----------------------------- | |
| 281 ; TFT boot | |
| 282 ; ----------------------------- | |
| 582 | 283 |
| 284 global TFT_boot | |
| 0 | 285 TFT_boot: |
| 286 clrf PORTA | |
| 287 clrf PORTH | |
| 288 RD_L ; LOW | |
| 289 bcf tft_nwr | |
| 290 nop | |
| 291 bcf tft_cs | |
| 292 nop | |
| 293 bcf tft_nreset | |
| 294 WAITMS d'1' | |
| 295 bcf tft_power ; inverted... | |
| 296 WAITMS d'1' | |
| 297 | |
| 298 RD_H ; Keep high | |
| 299 WR_H ; | |
| 300 NCS_L ; Not CS | |
| 301 | |
| 302 WAITMS d'2' | |
| 303 bsf tft_nreset | |
| 461 | 304 WAITMS d'5' |
| 305 bcf tft_nreset | |
| 306 WAITMS d'5' | |
| 307 bsf tft_nreset | |
| 0 | 308 WAITMS d'150' |
| 582 | 309 bsf lightsen_power ; Supply power to light sensor |
| 0 | 310 |
| 582 | 311 ; Data Transfer Synchronization |
| 0 | 312 Parameter_out 0x00, 0x00 |
| 313 Parameter_out 0x00, 0x00 | |
| 582 | 314 |
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315 ; Get screentype from Bootloader-Info |
| 582 | 316 movlw 0x7B |
| 317 movwf TBLPTRL | |
| 318 movlw 0xF7 | |
| 319 movwf TBLPTRH | |
| 320 movlw 0x01 | |
| 321 movwf TBLPTRU | |
| 322 TBLRD*+ ; Reads .110 for cR and USB OSTC3, .0 for BLE (2 and 3), and .2 for display1 OSTC | |
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323 movlw 0x02 |
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324 cpfseq TABLAT |
| 582 | 325 bra TFT_boot_0 ; Display0 |
| 360 | 326 |
| 327 TFT_boot_1: | |
| 582 | 328 ; Init through config table... |
| 329 movlw 0x74 | |
| 330 movwf TBLPTRL | |
| 331 movlw 0xF7 | |
| 332 movwf TBLPTRH | |
| 333 movlw 0x01 | |
| 334 movwf TBLPTRU | |
| 335 bsf screen_type | |
| 336 bra TFT_boot_com | |
| 360 | 337 |
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338 TFT_boot_0: |
| 582 | 339 ; Init through config table... |
| 340 movlw LOW display0_config_table | |
| 341 movwf TBLPTRL | |
| 342 movlw HIGH display0_config_table | |
| 343 movwf TBLPTRH | |
| 344 movlw UPPER display0_config_table | |
| 345 movwf TBLPTRU | |
| 346 bcf screen_type | |
| 347 | |
| 360 | 348 TFT_boot_com: |
| 582 | 349 rcall display0_init_loop |
| 0 | 350 |
| 582 | 351 Index_out 0x03 |
| 352 btfsc flip_screen ; 180° rotation ? | |
| 353 bra TFT_boot2 ; Yes | |
| 360 | 354 |
| 582 | 355 btfss screen_type ; display1? |
| 356 bra TFT_boot1a ; no | |
| 357 Parameter_out 0x10, 0x00 ; display1 | |
| 358 bra TFT_boot3 | |
| 360 | 359 TFT_boot1a: |
| 582 | 360 Parameter_out 0x50, 0x20 ; display0 |
| 361 bra TFT_boot3 | |
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362 TFT_boot2: |
| 582 | 363 btfss screen_type ; display1? |
| 364 bra TFT_boot2a ; no | |
| 365 Parameter_out 0x10, 0x30 ; display1 | |
| 366 bra TFT_boot3 | |
| 360 | 367 TFT_boot2a: |
| 582 | 368 Parameter_out 0x50, 0x10 ; display0 |
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369 TFT_boot3: |
| 0 | 370 Index_out 0x22 |
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371 rcall TFT_ClearScreen |
| 0 | 372 Index_out 0x07 |
| 312 | 373 Parameter_out 0x01, 0x33 |
| 0 | 374 return |
| 375 | |
| 376 display0_config_table: | |
| 582 | 377 ; Reg, Dat0, Dat1 or 0xFF,0x00,0x00 for end |
| 378 db 0xA4,0x00,0x01,0xFF,.002,0x00 | |
| 379 db 0x09,0x00,0x01,0x92,0x04,0x00 | |
| 380 db 0x93,0x04,0x02,0x94,0x00,0x02 | |
| 381 db 0x07,0x00,0x00,0x10,0x04,0x30 | |
| 382 db 0x11,0x02,0x37,0x12,0x11,0x8D | |
| 383 db 0x13,0x11,0x00,0x01,0x01,0x00 | |
| 384 db 0x02,0x02,0x00,0x03,0x50,0x20 | |
| 385 db 0x0A,0x00,0x08,0x0D,0x00,0x00 | |
| 386 db 0x0E,0x00,0x30,0xFF,.151,0x00 | |
| 387 db 0x12,0x11,0xBD,0x20,0x00,0x00 | |
| 388 db 0x21,0x00,0x00,0x30,0x06,0x02 | |
| 389 db 0x31,0x56,0x0D,0x32,0x05,0x07 | |
| 390 db 0x33,0x06,0x09,0x34,0x00,0x00 | |
| 391 db 0x35,0x09,0x06,0x36,0x57,0x05 | |
| 392 db 0x37,0x0D,0x06,0x38,0x02,0x06 | |
| 393 db 0x39,0x00,0x00,0xFF,0x00,0x00 | |
| 0 | 394 |
| 395 display0_init_loop: | |
| 582 | 396 TBLRD*+ |
| 397 movlw 0xFF | |
| 398 cpfseq TABLAT | |
| 399 bra display0_config_write ; Write Config pair to Display | |
| 400 ; Delay ms or quit (return) | |
| 401 TBLRD*+ | |
| 402 tstfsz TABLAT ; End of config? | |
| 403 bra $+4 ; No | |
| 404 return ; Done. | |
| 405 movf TABLAT,W | |
| 406 call WAITMSX ; Wait WREG milliseconds | |
| 407 TBLRD*+ ; Dummy read (Third byte of delay command) | |
| 408 bra display0_init_loop ; Loop | |
| 0 | 409 |
| 582 | 410 display0_config_write: ; With command in WREG |
| 411 movf TABLAT,W | |
| 412 rcall TFT_CmdWrite ; Write command | |
| 413 TBLRD*+ ; Get config0 | |
| 414 movff TABLAT,PORTA | |
| 415 TBLRD*+ ; Get config1 | |
| 416 movf TABLAT,W | |
| 417 rcall TFT_DataWrite ; Write config | |
| 418 bra display0_init_loop ; Loop | |
| 0 | 419 |
| 420 | |
| 421 ;============================================================================= | |
| 422 ; Smooth lighting-up of the display: | |
| 423 ; | |
| 424 ; Trashes: WREG, PRODL | |
| 425 ; Typical usage: | |
| 582 | 426 ; clrf CCPR1L ; Backlight off |
| 427 ; [draw splash screen] | |
| 428 ; call TFT_DisplayFadeIn | |
| 429 | |
| 430 global TFT_Display_FadeIn | |
| 0 | 431 TFT_Display_FadeIn: |
| 582 | 432 movlw CCP1CON_VALUE ; See hwos.inc |
| 433 movwf CCP1CON | |
| 434 bsf tft_is_dimming ; TFT is dimming, ignore ambient sensor! | |
| 435 clrf CCPR1L ; Backlight off - to be sure | |
| 436 movff max_CCPR1L,PRODL | |
| 0 | 437 TFT_Display_FadeIn_0: |
| 582 | 438 incf CCPR1L,F ; Duty cycle |
| 439 WAITMS d'2' | |
| 440 decfsz PRODL,F | |
| 441 bra TFT_Display_FadeIn_0 | |
| 442 bcf tft_is_dimming ; dimming done. | |
| 443 return | |
| 0 | 444 |
| 445 ;============================================================================= | |
| 446 ; Smooth lighting-off of the display: | |
| 447 ; Trashes: WREG, PRODL | |
| 582 | 448 |
| 449 global TFT_Display_FadeOut | |
| 0 | 450 TFT_Display_FadeOut: |
| 582 | 451 movff max_CCPR1L,PRODL |
| 452 bsf tft_is_dimming ; TFT is dimming, ignore ambient sensor! | |
| 0 | 453 TFT_Display_FadeOut_0: |
| 582 | 454 movff PRODL,CCPR1L ; Duty cycle |
| 455 WAITMS d'1' | |
| 456 decfsz PRODL,F | |
| 457 bra TFT_Display_FadeOut_0 | |
| 458 clrf CCPR1L | |
| 459 return | |
| 0 | 460 |
| 461 ;============================================================================= | |
| 462 | |
| 582 | 463 global box_std_block, box_black_block, box_color_block |
| 0 | 464 |
| 582 | 465 box_std_block: ; Use white color |
| 466 setf WREG | |
| 467 bra box_common | |
| 468 box_black_block: ; Use black color | |
| 469 clrf WREG | |
| 0 | 470 box_common: |
| 471 box_color_block: | |
| 582 | 472 rcall TFT_set_color |
| 473 VARARGS_BEGIN | |
| 474 VARARGS_GET8 win_top | |
| 475 VARARGS_GET8 win_height | |
| 476 VARARGS_GET8 win_leftx2 | |
| 477 VARARGS_GET8 win_width | |
| 478 VARARGS_END | |
| 479 bra TFT_box | |
| 0 | 480 |
| 481 ;----------------------------------------------------------------------------- | |
| 482 | |
| 582 | 483 global box_frame_std, box_frame_common, box_frame_color, box_frame_color16 |
| 0 | 484 |
| 485 box_frame_std: | |
| 582 | 486 setf WREG |
| 487 rcall TFT_set_color | |
| 0 | 488 box_frame_common: |
| 582 | 489 VARARGS_BEGIN |
| 490 VARARGS_GET8 win_top | |
| 491 VARARGS_GET8 win_height | |
| 492 VARARGS_GET8 win_leftx2 | |
| 493 VARARGS_GET8 win_width | |
| 494 VARARGS_END | |
| 495 bra TFT_frame | |
| 0 | 496 box_frame_color: |
| 582 | 497 rcall TFT_set_color |
| 0 | 498 box_frame_color16: |
| 582 | 499 bra box_frame_common |
| 0 | 500 |
| 434 | 501 ;;============================================================================= |
| 502 ;; Init for half_pixel_write | |
| 503 ;; Set column register on TFT device, and current color. | |
| 504 ;; Inputs: win_leftx2 | |
| 505 ;; Outputs: win_color:2 | |
| 506 ;; Trashed: WREG, PROD | |
| 582 | 507 ; |
| 508 ; global init_pixel_write | |
| 434 | 509 ;init_pixel_write: |
| 582 | 510 ; movf win_leftx2,W |
| 511 ; mullw 2 | |
| 512 ; rcall pixel_write_col320 ; Start Address Vertical (.0 - .319) | |
| 513 ; setf WREG | |
| 514 ; bra TFT_set_color | |
| 0 | 515 |
| 516 ;----------------------------------------------------------------------------- | |
| 517 ; Writes two half-pixels at position (win_top,win_leftx2) | |
| 518 ; Inputs: win_leftx2, win_top, win_color:2 | |
| 519 ; Trashed: WREG, PROD | |
| 582 | 520 |
| 521 global pixel_write | |
| 0 | 522 pixel_write: |
| 582 | 523 movf win_leftx2,W |
| 524 mullw 2 ; win_leftx2 x 2 -> PRODH:PRODL | |
| 525 rcall pixel_write_col320 ; Start Address Vertical (.0 - .319) | |
| 526 rcall half_pixel_write ; Write this half-one. | |
| 527 movf win_leftx2,W ; Address of next one | |
| 528 mullw 2 | |
| 529 infsnz PRODL ; +1 | |
| 530 incf PRODH | |
| 531 rcall pixel_write_col320 | |
| 532 bra half_pixel_write ; Note: Cmd 0x20 is mandatory, because | |
| 533 ; of the auto-increment going vertical | |
| 0 | 534 |
| 535 global pixel_write_col320 | |
| 536 pixel_write_col320: | |
| 582 | 537 btfsc screen_type ; display1? |
| 538 bra pixel_write_col320_d1 ; Yes | |
| 539 ; Display0 | |
| 540 btfss flip_screen ; 180° rotation? | |
| 541 bra pixel_write_noflip_H ; No | |
| 542 bra pixel_write_flip_H ; Yes | |
| 543 pixel_write_col320_d1: ; Display1 | |
| 544 btfsc flip_screen ; 180° rotation? | |
| 545 bra pixel_write_noflip_H ; Yes for d1 | |
| 546 pixel_write_flip_H: ; Flip d0 | |
| 547 movf PRODL,W ; 16bits 319 - PROD --> PROD | |
| 548 sublw LOW(.319) ; 319-W --> W | |
| 549 movwf PRODL | |
| 550 movf PRODH,W | |
| 551 btfss STATUS,C ; Borrow = /CARRY | |
| 552 incf WREG | |
| 553 sublw HIGH(.319) | |
| 554 movwf PRODH | |
| 151 | 555 |
| 556 pixel_write_noflip_H: | |
| 582 | 557 Index_out 0x21 ; Frame Memory Vertical Address |
| 558 bra TFT_DataWrite_PROD ; and return... | |
| 0 | 559 |
| 560 ;----------------------------------------------------------------------------- | |
| 561 ; Writes one half-pixel at position (win_top,win_leftx2). | |
| 562 ; Inputs: win_leftx2, win_top, win_color:2 | |
| 563 ; Trashed: WREG, PROD | |
| 582 | 564 |
| 565 global half_pixel_write | |
| 0 | 566 half_pixel_write: |
| 582 | 567 movf win_top,W ; d'0' ... d'239' |
| 568 ; Variant with Y position in WREG. | |
| 0 | 569 half_pixel_write_1: |
| 582 | 570 btfss flip_screen ; 180° rotation? |
| 571 sublw .239 ; 239-Y --> Y | |
| 572 mullw .1 ; Copy row to PRODL (PRODH=0) | |
| 573 Index_out 0x20 ; Frame Memory Horizontal Address | |
| 574 rcall TFT_DataWrite_PROD | |
| 0 | 575 |
| 582 | 576 Index_out 0x22 ; Frame Memory Data Write start |
| 577 RS_H ; Data | |
| 578 bcf INTCON,GIE | |
| 579 movff win_color1,PORTA ; Upper | |
| 580 movff win_color2,PORTH ; Lower | |
| 581 WR_L | |
| 582 WR_H ; Tick | |
| 583 bsf INTCON,GIE | |
| 584 return | |
| 0 | 585 |
| 586 ;----------------------------------------------------------------------------- | |
| 587 ; Writes a vertical line of half-pixel at position (win_top,win_leftx2,win_height). | |
| 588 ; Inputs: win_leftx2, win_top, win_height, win_color:2 | |
| 589 ; Trashed: WREG, PROD, TABLAT, TBLPTRL | |
| 582 | 590 |
| 0 | 591 global half_vertical_line |
| 592 half_vertical_line: | |
| 582 | 593 clrf TABLAT ; Loop index. |
| 0 | 594 |
| 595 half_vertical_line_loop: | |
| 582 | 596 movf win_leftx2,W ; Init X position. |
| 597 mullw .2 | |
| 598 movf TABLAT,W ; Get loop index | |
| 599 andlw .1 ; Just low bit | |
| 600 xorwf PRODL,F ; And use it to jitter current X position | |
| 601 rcall pixel_write_col320 ; Start Address Vertical (.0 - .319) | |
| 0 | 602 |
| 582 | 603 movf win_height,W ; Index reached height (Bank0 read) ? |
| 604 xorwf TABLAT,W | |
| 605 btfsc STATUS,Z ; Equals ? | |
| 606 return ; Yes: done. | |
| 607 movf win_top,W ; Y = top + index (Bank0 read) | |
| 608 addwf TABLAT,W | |
| 609 rcall half_pixel_write_1 | |
| 610 incf TABLAT,F ; index++ | |
| 611 bra half_vertical_line_loop | |
| 0 | 612 |
| 613 ;----------------------------------------------------------------------------- | |
| 614 ; Writes a horizontal line of half-pixel at position (win_top,win_leftx2,win_width). | |
| 615 ; Inputs: win_leftx2, win_top, win_width, win_color:2 | |
| 616 ; Trashed: WREG, PROD, TABLAT, TBLPTRL | |
| 582 | 617 |
| 0 | 618 global half_horizontal_line |
| 619 half_horizontal_line: | |
| 582 | 620 clrf TABLAT ; Loop index. |
| 0 | 621 |
| 622 half_horizontal_line_loop: | |
| 582 | 623 movf win_leftx2,W ; Init X position. |
| 624 mullw .2 | |
| 625 rcall pixel_write_col320 ; Start Address Vertical (.0 - .319) | |
| 626 movf win_width,W ; Index reached height (Bank0 read) ? | |
| 627 xorwf TABLAT,W | |
| 628 btfsc STATUS,Z ; Equals ? | |
| 629 return ; Yes: done. | |
| 630 movf win_top,W ; Y = top + index (Bank0 read) | |
| 631 addwf TABLAT,W | |
| 632 rcall half_pixel_write_1 | |
| 633 incf TABLAT,F ; index++ | |
| 634 bra half_horizontal_line_loop | |
| 0 | 635 |
| 636 | |
| 637 ;----------------------------------------------------------------------------- | |
| 638 ; TFT Data Cmd via W | |
| 582 | 639 |
| 640 global TFT_DataWrite_PROD | |
| 0 | 641 TFT_DataWrite_PROD: |
| 582 | 642 ; RD_H ; Keep high |
| 643 RS_H ; Data | |
| 644 bcf INTCON,GIE | |
| 645 movff PRODH,PORTA ; Move high byte to PORTA | |
| 646 movff PRODL,PORTH ; Move low byte to PORTH | |
| 0 | 647 WR_L |
| 582 | 648 WR_H ; Tick |
| 649 bsf INTCON,GIE | |
| 0 | 650 return |
| 651 | |
| 652 TFT_DataRead_PROD: | |
| 582 | 653 Index_out 0x22 ; Frame Memory Data Read start |
| 360 | 654 TFT_CmdRead_PROD: |
| 582 | 655 setf TRISA ; PortA as input. |
| 656 setf TRISH ; PortH as input. | |
| 657 RS_H ; Data | |
| 658 WR_H ; Not write | |
| 659 RD_L ; Read! | |
| 660 nop | |
| 661 nop | |
| 662 nop | |
| 663 RD_H ; Tick | |
| 664 nop | |
| 665 nop | |
| 666 nop | |
| 667 RD_L ; Read! | |
| 668 nop | |
| 669 ;nop | |
| 670 ;nop | |
| 671 movff PORTA,PRODH | |
| 672 movff PORTH,PRODL | |
| 673 RD_H ; Tick | |
| 674 nop | |
| 675 clrf TRISA ; PortA as output | |
| 676 clrf TRISH ; PortH as output | |
| 0 | 677 return |
| 678 | |
| 679 ;============================================================================= | |
| 680 ; Output TFT Window Address commands. | |
| 681 ; Inputs : win_top, win_leftx2, win_height, win_width. | |
| 682 ; Output : PortA/PortH commands. | |
| 683 ; Trashed: PROD | |
| 582 | 684 |
| 685 global TFT_box_write | |
| 0 | 686 TFT_box_write: |
| 582 | 687 movf win_leftx2,W ; Compute left = 2*leftx2 --> PROD |
| 432 | 688 mullw 2 |
| 0 | 689 |
| 582 | 690 global TFT_box_write_16bit_win_left |
| 691 TFT_box_write_16bit_win_left: ; With column in PRODL:PRODH | |
| 692 btfsc screen_type ; display1? | |
| 693 bra TFT_box_write_16bit_win_left_d1 ; Yes | |
| 694 ; Display0 | |
| 695 btfsc flip_screen ; 180° rotation? | |
| 696 bra DISP_box_flip_H ; Yes | |
| 697 bra TFT_box_write_16bit_win_left_com ; No | |
| 698 TFT_box_write_16bit_win_left_d1: ; Display1 | |
| 699 btfss flip_screen ; 180° rotation? | |
| 700 bra DISP_box_flip_H ; No for d1 | |
| 701 ; Yes for d1 | |
| 361 | 702 TFT_box_write_16bit_win_left_com: |
| 582 | 703 ;---- Normal horizontal window --------------------------------------- |
| 704 Index_out 0x52 ; Window Vertical Start Address | |
| 705 rcall TFT_DataWrite_PROD ; Output left | |
| 706 Index_out 0x21 ; Frame Memory Vertical Address | |
| 707 rcall TFT_DataWrite_PROD ; Output left | |
| 0 | 708 |
| 582 | 709 movf win_width+0,W ; right = left + width - 1 |
| 432 | 710 addwf PRODL,F |
| 711 movf win_width+1,W | |
| 712 addwfc PRODH,F | |
| 582 | 713 decf PRODL,F ; decrement result |
| 714 btfss STATUS,C | |
| 432 | 715 decf PRODH,F |
| 0 | 716 |
| 582 | 717 Index_out 0x53 ; Window Vertical End Address |
| 718 rcall TFT_DataWrite_PROD | |
| 719 bra DISP_box_noflip_H | |
| 0 | 720 |
| 582 | 721 ;---- Flipped horizontal window -------------------------------------- |
| 151 | 722 DISP_box_flip_H: |
| 582 | 723 movf PRODL,W ; 16bits 319 - PROD --> PROD |
| 724 sublw LOW(.319) ; 319-W --> W | |
| 725 movwf PRODL | |
| 726 movf PRODH,W | |
| 727 btfss STATUS,C ; Borrow = /CARRY | |
| 728 incf WREG | |
| 729 sublw HIGH(.319) | |
| 730 movwf PRODH | |
|
152
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|
731 |
| 582 | 732 Index_out 0x53 ; Window Vertical Start Address |
| 733 rcall TFT_DataWrite_PROD ; Output left | |
| 734 Index_out 0x21 ; Frame Memory Vertical Address | |
| 735 rcall TFT_DataWrite_PROD ; Output left | |
| 151 | 736 |
| 582 | 737 movf win_width+0,W ; 16bits PROD - width --> PROD |
| 738 subwf PRODL,F ; PRODL - WREG --> PRODL | |
| 739 movf win_width+1,W | |
| 740 subwfb PRODH,F | |
| 741 infsnz PRODL ; PROD+1 --> PROD | |
| 742 incf PRODH | |
| 151 | 743 |
| 582 | 744 Index_out 0x52 ; Window Vertical End Address |
| 745 rcall TFT_DataWrite_PROD | |
| 151 | 746 |
| 747 DISP_box_noflip_H: | |
| 582 | 748 btfss flip_screen ; 180° rotation ? |
| 749 bra TFT_box_noflip_V ; No. | |
| 151 | 750 |
| 582 | 751 ;---- Flipped vertical window ----------------------------------------- |
| 752 movff win_top,PRODH ; top --> PRODH (first byte) | |
| 753 movf win_height,W | |
| 754 addwf PRODH,W | |
| 432 | 755 decf WREG |
| 582 | 756 movwf PRODL ; top+height-1 --> PRODL (second byte) |
| 151 | 757 |
| 582 | 758 Index_out 0x50 ; Window Horizontal Start Address |
| 432 | 759 movf PRODH,W |
| 582 | 760 rcall TFT_DataWrite ; Lower (and tick) |
| 151 | 761 |
| 582 | 762 Index_out 0x51 ; Window Horizontal End Address |
| 763 movf PRODL,W | |
| 764 rcall TFT_DataWrite ; Lower (and tick) | |
| 765 | |
| 766 Index_out 0x20 ; Frame Memory Horizontal Address | |
| 432 | 767 movf PRODH,W |
| 582 | 768 bra TFT_DataWrite ; Lower (and tick) and return |
| 151 | 769 |
|
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changeset
|
770 TFT_box_noflip_V: |
| 582 | 771 ;---- Normal vertical window ---------------------------------------- |
| 772 movff win_top,PRODL | |
| 773 movf win_height,W | |
| 774 addwf PRODL,W | |
| 775 sublw .240 ; 240 - top - height | |
| 776 movwf PRODH ; First byte | |
| 0 | 777 |
| 432 | 778 movf PRODL,W |
| 582 | 779 sublw .239 ; 239-top |
| 780 movwf PRODL ; --> second byte. | |
| 0 | 781 |
| 582 | 782 Index_out 0x50 ; Window Horizontal Start Address |
| 432 | 783 movf PRODH,W |
| 582 | 784 rcall TFT_DataWrite ; Lower (and tick) |
| 0 | 785 |
| 582 | 786 Index_out 0x51 ; Window Horizontal End Address |
| 432 | 787 movf PRODL,W |
| 582 | 788 rcall TFT_DataWrite ; Lower (and tick) |
| 0 | 789 |
| 582 | 790 Index_out 0x20 ; Frame Memory Horizontal Address |
| 432 | 791 movf PRODL,W |
| 582 | 792 bra TFT_DataWrite ; Lower (and tick) and return |
| 793 | |
| 0 | 794 |
| 795 ;============================================================================= | |
| 796 ; TFT_frame : draw a frame around current box with current color. | |
| 797 ; Inputs: win_top, win_leftx2, win_height, win_width, win_color1, win_color2 | |
| 798 ; Outputs: (none) | |
| 799 ; Trashed: WREG, PROD, aa_start:2, aa_end:2 | |
| 800 | |
| 582 | 801 global TFT_frame |
| 802 TFT_frame: | |
| 803 movff win_top,save_top ; Backup everything. | |
| 804 movff win_height,save_height | |
| 805 movff win_leftx2,save_left | |
| 806 movff win_width,save_width | |
| 0 | 807 |
| 582 | 808 ;---- TOP line ----------------------------------------------------------- |
| 809 movlw .1 ; row ~ height=1 | |
| 810 movwf win_height | |
| 811 rcall TFT_box | |
| 0 | 812 |
| 582 | 813 ;---- BOTTOM line -------------------------------------------------------- |
| 814 movff save_top,PRODL ; Get back top, | |
| 815 movff save_height,WREG ; and height | |
| 816 addwf PRODL,W ; top+height | |
| 817 decf WREG ; top+height-1 | |
| 818 movwf win_top ; top+height-1 --> top | |
| 819 rcall TFT_box | |
| 0 | 820 |
| 582 | 821 ;---- LEFT column -------------------------------------------------------- |
| 822 movff save_top,win_top ; Restore top/height. | |
| 823 movff save_height,win_height | |
| 824 movlw .1 ; column ~ width=1 | |
| 825 movwf win_width+0 | |
| 826 rcall TFT_box | |
| 827 | |
| 828 ;---- RIGHT column ------------------------------------------------------- | |
| 829 movff save_left,WREG | |
| 830 movff save_width,PRODL | |
| 831 addwf PRODL,W | |
| 832 decf WREG | |
| 833 movwf win_leftx2 | |
| 834 rcall TFT_box | |
| 835 | |
| 836 ;---- Restore everything ------------------------------------------------- | |
| 837 movff save_left,win_leftx2 | |
| 838 movff save_width,win_width | |
| 839 return | |
| 0 | 840 |
| 841 ;============================================================================= | |
| 842 ; TFT_box : fills current box with current color. | |
| 843 ; Inputs: win_top, win_leftx2, win_height, win_width, win_color1, win_color2 | |
| 844 ; Outputs: (none) | |
| 845 ; Trashed: WREG, PROD | |
| 846 | |
| 582 | 847 global TFT_box |
| 0 | 848 TFT_box: |
| 582 | 849 ;---- Define Window ------------------------------------------------------ |
| 850 bcf STATUS,C | |
| 851 rlcf win_width+0,F | |
| 852 rlcf win_width+1,F ; x2 | |
| 853 rcall TFT_box_write ; Setup box | |
| 0 | 854 |
| 582 | 855 global TFT_box_16bit_win_left |
| 83 | 856 TFT_box_16bit_win_left: |
| 582 | 857 bcf STATUS,C |
| 858 rrcf win_width+1,F ; width /= 2 | |
| 859 rrcf win_width+0,F | |
| 0 | 860 |
| 582 | 861 ;---- Fill Window -------------------------------------------------------- |
| 862 Index_out 0x22 ; Frame Memory Data Write start | |
| 0 | 863 |
| 582 | 864 clrf PRODH ; Column counter. |
| 865 RS_H ; Data | |
| 0 | 866 |
| 582 | 867 TFT_box2: ; Loop height times |
| 0 | 868 movff win_height,PRODL |
| 869 | |
| 582 | 870 TFT_box3: ; loop width times |
| 436 | 871 bcf INTCON,GIE |
| 582 | 872 movff win_color1,PORTA ; Upper |
| 873 movff win_color2,PORTH ; Lower | |
| 0 | 874 WR_L |
| 582 | 875 WR_H ; Tick |
| 876 | |
| 877 ; movff win_color1,PORTA ; Upper | |
| 878 ; movff win_color2,PORTH ; Lower | |
| 0 | 879 WR_L |
| 582 | 880 WR_H ; Tick |
| 881 bsf INTCON,GIE | |
| 882 decfsz PRODL,F ; row loop finished ? | |
| 883 bra TFT_box3 ; No: continue. | |
| 0 | 884 |
| 582 | 885 incf PRODH,F ; column count ++ |
| 0 | 886 |
| 582 | 887 movf win_bargraph,W ; current column == bargraph ? |
| 888 cpfseq PRODH | |
| 889 bra TFT_box4 ; No: just loop. | |
| 890 ; Yes: switch to black | |
| 891 clrf win_color1 | |
| 892 clrf win_color2 | |
| 0 | 893 TFT_box4: |
| 582 | 894 movf win_width+0,W ; compare ? |
| 895 xorwf PRODH,W | |
| 896 bnz TFT_box2 ; Loop not finished. | |
| 0 | 897 |
| 582 | 898 movlw 0x00 ; NOP, to stop window mode |
| 899 rcall TFT_CmdWrite | |
| 0 | 900 |
| 582 | 901 ; Reset bargraph mode... |
| 902 setf win_bargraph | |
| 903 return | |
| 0 | 904 |
| 905 ;============================================================================= | |
| 906 ;Converts 8Bit RGB b'RRRGGGBB' into 16Bit RGB b'RRRRRGGGGGGBBBBB' | |
| 907 | |
| 582 | 908 global TFT_set_color |
| 0 | 909 TFT_set_color: |
| 910 movwf tft_temp1 ; Get 8Bit RGB b'RRRGGGBB' | |
| 582 | 911 movwf tft_temp2 ; Copy |
| 0 | 912 |
| 913 ; Mask Bit 7,6,5,4,3,2 | |
| 914 movlw b'00000011' | |
| 915 andwf tft_temp2,F | |
| 916 | |
| 917 movlw b'00000000' | |
| 918 dcfsnz tft_temp2,F | |
| 919 movlw b'01010000' | |
| 920 dcfsnz tft_temp2,F | |
| 921 movlw b'10100000' | |
| 922 dcfsnz tft_temp2,F | |
| 923 movlw b'11111000' | |
| 924 movwf tft_temp3 ; Blue done. | |
| 925 | |
| 582 | 926 movff tft_temp1,tft_temp2 ; Copy |
| 0 | 927 ; Mask Bit 7,6,5,1,0 |
| 928 movlw b'00011100' | |
| 929 andwf tft_temp2,F | |
| 930 rrncf tft_temp2,F | |
| 931 rrncf tft_temp2,F | |
| 932 | |
| 933 movlw b'00000000' | |
| 934 dcfsnz tft_temp2,F | |
| 935 movlw b'00000100' | |
| 936 dcfsnz tft_temp2,F | |
| 937 movlw b'00001000' | |
| 938 dcfsnz tft_temp2,F | |
| 939 movlw b'00001100' | |
| 940 dcfsnz tft_temp2,F | |
| 941 movlw b'00010000' | |
| 942 dcfsnz tft_temp2,F | |
| 943 movlw b'00010100' | |
| 944 dcfsnz tft_temp2,F | |
| 945 movlw b'00100000' | |
| 946 dcfsnz tft_temp2,F | |
| 947 movlw b'00111111' | |
| 582 | 948 movwf tft_temp4 |
| 0 | 949 |
| 950 rrcf tft_temp4,F | |
| 951 rrcf tft_temp3,F | |
| 952 | |
| 953 rrcf tft_temp4,F | |
| 954 rrcf tft_temp3,F | |
| 955 | |
| 956 rrcf tft_temp4,F | |
| 582 | 957 rrcf tft_temp3,W ; tft_temp3 (b'GGGBBBBB') done. |
| 958 movwf win_color2 ; Set Color registers... | |
| 0 | 959 |
| 582 | 960 movff tft_temp1,tft_temp2 ; Copy |
| 0 | 961 clrf tft_temp1 |
| 962 | |
| 963 rrcf tft_temp4,F | |
| 964 rrcf tft_temp1,F | |
| 965 | |
| 966 rrcf tft_temp4,F | |
| 967 rrcf tft_temp1,F | |
| 968 | |
| 969 rrcf tft_temp4,F | |
| 582 | 970 rrcf tft_temp1,F ; Green done. |
| 0 | 971 |
| 972 ; Mask Bit 4,3,2,1,0 | |
| 973 movlw b'11100000' | |
| 974 andwf tft_temp2,F | |
| 975 | |
| 976 rrncf tft_temp2,F | |
| 977 rrncf tft_temp2,F | |
| 978 rrncf tft_temp2,F | |
| 979 rrncf tft_temp2,F | |
| 980 rrncf tft_temp2,F | |
| 981 | |
| 982 movlw b'00000000' | |
| 983 dcfsnz tft_temp2,F | |
| 984 movlw b'00000100' | |
| 985 dcfsnz tft_temp2,F | |
| 986 movlw b'00001000' | |
| 987 dcfsnz tft_temp2,F | |
| 988 movlw b'00001100' | |
| 989 dcfsnz tft_temp2,F | |
| 990 movlw b'00010000' | |
| 991 dcfsnz tft_temp2,F | |
| 992 movlw b'00010100' | |
| 993 dcfsnz tft_temp2,F | |
| 994 movlw b'00100000' | |
| 995 dcfsnz tft_temp2,F | |
| 996 movlw b'00111111' | |
| 582 | 997 movwf tft_temp4 |
| 0 | 998 |
| 999 rrcf tft_temp4,F | |
| 1000 rrcf tft_temp1,F | |
| 1001 | |
| 1002 rrcf tft_temp4,F | |
| 1003 rrcf tft_temp1,F | |
| 1004 | |
| 1005 rrcf tft_temp4,F | |
| 1006 rrcf tft_temp1,F | |
| 1007 | |
| 1008 rrcf tft_temp4,F | |
| 1009 rrcf tft_temp1,F | |
| 1010 | |
| 1011 rrcf tft_temp4,F | |
| 582 | 1012 rrcf tft_temp1,W ; Red done. |
| 1013 movwf win_color1 ; Set Color registers... | |
| 0 | 1014 return |
| 1015 | |
| 1016 ;============================================================================= | |
| 1017 ; Dump screen contents to the UART | |
| 1018 | |
| 582 | 1019 global TFT_dump_screen |
| 0 | 1020 TFT_dump_screen: |
| 582 | 1021 bsf no_sensor_int |
| 1022 movlw 'l' | |
| 1023 movwf TXREG ; Send command echo. | |
| 1024 call rs232_wait_tx ; wait for UART | |
| 1025 ;---- Send DISPLAY box command for the full screen window ------------------- | |
| 1026 Index_out 0x50 ; Window Horizontal Start Address | |
| 1027 Parameter_out 0x00, 0x00 ; 0-239 | |
| 1028 Index_out 0x51 ; Window Horizontal End Address | |
| 1029 Parameter_out 0x00, 0xEF ; 0-239 | |
| 1030 Index_out 0x52 ; Window Vertical Start Address | |
| 1031 Parameter_out 0x00, 0x00 ; 0-319 | |
| 1032 Index_out 0x53 ; Window Vertical End Address | |
| 1033 Parameter_out 0x01, 0x3F ; 0-319 | |
| 0 | 1034 |
| 582 | 1035 clrf ds_column |
| 1036 rcall dump_screen_pixel_reset | |
| 0 | 1037 dump_screen_1: |
| 582 | 1038 btg LEDr ; LED activity toggle |
| 1039 ; Dump even column | |
| 1040 movlw .240 ; 240 lines, once. | |
| 1041 movwf ds_line | |
| 0 | 1042 dump_screen_2: |
| 582 | 1043 Index_out 0x20 ; Frame Memory Horizontal Address |
| 1044 movff ds_line,WREG ; d'0' ... d'239' | |
| 1045 mullw .1 ; Copy row to PRODH:L | |
| 1046 rcall TFT_DataWrite_PROD | |
| 0 | 1047 |
| 582 | 1048 movff ds_column,WREG ; Init X position. |
| 1049 mullw 2 | |
| 1050 rcall pixel_write_col320 ; Start Address Vertical (.0 - .319) | |
| 0 | 1051 |
| 582 | 1052 rcall TFT_DataRead_PROD ; read pixel |
| 1053 rcall dump_screen_pixel | |
| 0 | 1054 |
| 582 | 1055 decfsz ds_line,F |
| 1056 bra dump_screen_2 | |
| 1057 rcall dump_screen_pixel_flush | |
| 0 | 1058 |
| 582 | 1059 ; Dump odd column |
| 1060 movlw .240 ; 240 lines, twice. | |
| 1061 movwf ds_line | |
| 0 | 1062 dump_screen_3: |
| 582 | 1063 Index_out 0x20 ; Frame Memory Horizontal Address |
| 1064 movff ds_line,WREG ; d'0' ... d'239' | |
| 1065 mullw 1 ; Copy row to PRODH:L | |
| 1066 rcall TFT_DataWrite_PROD | |
| 0 | 1067 |
| 582 | 1068 movff ds_column,WREG ; Init X position. |
| 1069 mullw 2 | |
| 1070 movlw .1 | |
| 1071 addwf PRODL,F | |
| 1072 movlw 0 | |
| 1073 addwfc PRODH,F ; +1 | |
| 1074 rcall pixel_write_col320 ; Start Address Vertical (.0 - .319) | |
| 0 | 1075 |
| 582 | 1076 rcall TFT_DataRead_PROD ; read pixel |
| 1077 rcall dump_screen_pixel | |
| 0 | 1078 |
| 582 | 1079 decfsz ds_line,F |
| 1080 bra dump_screen_3 | |
| 1081 rcall dump_screen_pixel_flush | |
| 0 | 1082 |
| 582 | 1083 incf ds_column,F |
| 1084 movlw .160 | |
| 1085 cpfseq ds_column | |
| 1086 bra dump_screen_1 | |
| 0 | 1087 |
| 582 | 1088 bcf no_sensor_int |
| 1089 clrf RCREG1 ; Clear receive buffer | |
| 1090 bcf RCSTA1,CREN ; Clear receiver status | |
| 1091 bsf RCSTA1,CREN | |
| 1092 bsf enable_screen_dumps ; =1: Ignore vin_usb, wait for "l" command (Screen dump) | |
| 1093 return | |
| 0 | 1094 |
| 1095 | |
| 1096 ;============================================================================= | |
| 1097 ; Pixel compression | |
| 1098 ; | |
| 1099 ; Input: PRODH:L = pixel. | |
| 1100 ; Output: Compressed stream on output. | |
| 1101 ; Compressed format: | |
| 1102 ; 0ccccccc : BLACK pixel, repeated ccccccc+1 times (1..128). | |
| 1103 ; 11cccccc : WHITE pixel, repeated cccccc+1 times (1..64). | |
| 1104 ; 10cccccc HIGH LOW : color pixel (H:L) repeated ccccc+1 times (1..64). | |
| 582 | 1105 |
| 0 | 1106 dump_screen_pixel: |
| 582 | 1107 movf PRODH,W ; Compare pixel-high |
| 1108 xorwf ds_pixel+1,W | |
| 1109 bnz dump_screen_pixel_1 ; Different -> dump. | |
| 0 | 1110 |
| 582 | 1111 movf PRODL,W ; Compare pixel-low |
| 1112 xorwf ds_pixel+0,W | |
| 1113 bnz dump_screen_pixel_1 ; Different -> dump. | |
| 0 | 1114 |
| 582 | 1115 incf ds_count,F ; Same color: just increment. |
| 1116 return | |
| 0 | 1117 |
| 582 | 1118 dump_screen_pixel_1: ; Send (pixel,count) tuple |
| 1119 movf ds_count,W ; Is count zero ? | |
| 1120 bz dump_screen_pixel_2 ; Yes: skip sending. | |
| 0 | 1121 |
| 582 | 1122 movf ds_pixel+1,W ; This is a BLACK pixel ? |
| 1123 iorwf ds_pixel+0,W | |
| 1124 bz dump_screen_pix_black ; YES. | |
| 0 | 1125 |
| 582 | 1126 movf ds_pixel+1,W ; This is a white pixel ? |
| 1127 andwf ds_pixel+0,W | |
| 1128 incf WREG | |
| 1129 bz dump_screen_pix_white ; YES. | |
| 0 | 1130 |
| 582 | 1131 ; No: write the pixel itself... |
| 1132 movlw .64 ; Max color pixel on a single byte. | |
| 1133 cpfsgt ds_count ; Skip if count > 64 | |
| 1134 movf ds_count,W ; W <- min(64,count) | |
| 1135 subwf ds_count,F ; ds_count <- ds_count-W | |
| 1136 decf WREG ; Save as 0..63 | |
| 1137 iorlw b'10000000' ; MARK as a color pixel. | |
| 0 | 1138 |
| 582 | 1139 movwf TXREG |
| 1140 call rs232_wait_tx ; wait for UART | |
| 1141 movff ds_pixel+1,TXREG | |
| 1142 call rs232_wait_tx ; wait for UART | |
| 1143 movff ds_pixel+0,TXREG | |
| 1144 call rs232_wait_tx ; wait for UART | |
| 1145 bra dump_screen_pixel_1 | |
| 0 | 1146 |
| 1147 dump_screen_pixel_2: | |
| 582 | 1148 movff PRODH,ds_pixel+1 ; Save new pixel color |
| 1149 movff PRODL,ds_pixel+0 | |
| 1150 movlw 1 | |
| 1151 movwf ds_count ; And set count=1. | |
| 1152 return | |
| 0 | 1153 |
| 1154 dump_screen_pix_black: | |
| 582 | 1155 movlw .128 ; Max black pixel on a single byte. |
| 1156 cpfsgt ds_count ; Skip if count > 128 | |
| 1157 movf ds_count,W ; W <- min(128,count) | |
| 1158 subwf ds_count,F ; ds_count <- ds_count-W | |
| 1159 decf WREG ; Save as 0..127 | |
| 0 | 1160 dump_screen_pix_3: |
| 582 | 1161 movwf TXREG |
| 1162 call rs232_wait_tx | |
| 1163 bra dump_screen_pixel_1 ; More to dump ? | |
| 0 | 1164 |
| 1165 dump_screen_pix_white: | |
| 582 | 1166 movlw .64 ; Max white pixel on a single byte. |
| 1167 cpfsgt ds_count ; Skip if count > 64 | |
| 1168 movf ds_count,W ; W <- min(64,count) | |
| 1169 subwf ds_count,F ; ds_count <- ds_count-W | |
| 1170 decf WREG ; Save as 0..63 | |
| 1171 iorlw b'11000000' ; MARK as a compressed white. | |
| 1172 bra dump_screen_pix_3 | |
| 0 | 1173 |
| 1174 dump_screen_pixel_flush: | |
| 582 | 1175 clrf PRODH |
| 1176 clrf PRODL | |
| 1177 rcall dump_screen_pixel_1 ; Send it | |
| 0 | 1178 dump_screen_pixel_reset: |
| 582 | 1179 clrf ds_count ; But clear count. |
| 1180 return | |
| 0 | 1181 |
| 582 | 1182 END |