Mercurial > public > hwos_code
annotate src/tft.asm @ 604:ca4556fb60b9
bump to 2.99beta, work on 3.00 stable
| author | heinrichsweikamp |
|---|---|
| date | Thu, 22 Nov 2018 19:47:26 +0100 |
| parents | b455b31ce022 |
| children | d866684249bd |
| rev | line source |
|---|---|
| 0 | 1 ;============================================================================= |
| 2 ; | |
| 604 | 3 ; File tft.asm ## V2.99c |
| 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 | |
| 604 | 64 movwf PORTA ; upper |
| 0 | 65 movlw low_b |
| 66 rcall TFT_DataWrite | |
| 67 endm | |
| 68 | |
| 69 | |
| 604 | 70 tft CODE |
| 582 | 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 |
| 604 | 95 ; movwf SSP2BUF ; write to buffer to initiate new read |
| 96 ; btfss SSP2STAT, BF ; next byte ready ? | |
| 97 ; bra $-2 ; NO - wait... | |
| 582 | 98 ; movff SSP2BUF,win_width+1 |
| 604 | 99 ; movwf SSP2BUF ; write to buffer to initiate new read |
| 100 ; btfss SSP2STAT, BF ; next byte ready ? | |
| 101 ; bra $-2 ; NO - wait... | |
| 582 | 102 ; movff SSP2BUF,win_height |
| 604 | 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. |
| 604 | 112 ; iorwf WREG ; check height < 256 |
| 582 | 113 ; bnz TFT_write_flash_image_failed |
| 604 | 114 ; movf win_width+1,W ; check width < 512 |
| 582 | 115 ; andlw 0xFE |
| 116 ; bnz TFT_write_flash_image_failed | |
| 151 | 117 ; |
| 582 | 118 ; ; Center image on win_top, win_left values |
| 604 | 119 ; bcf STATUS,C ; clear carry |
| 120 ; rrcf win_height,W ; and get height/2 | |
| 582 | 121 ; subwf win_top,F ; top -= height/2 |
| 604 | 122 ; rrcf win_width+1,W ; get 9th bit into carry |
| 123 ; rrcf win_width+0,W ; get width/2 (in 0..320 range) | |
| 582 | 124 ; bcf STATUS,C |
| 604 | 125 ; rrcf WREG,W ; get width/2 in 0..160 range |
| 582 | 126 ; subwf win_leftx2,F ; left -= width/2 |
| 151 | 127 ; |
| 604 | 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 | |
| 604 | 133 ; mulwf win_height ; result in PRODL:H |
| 582 | 134 ; movf win_width+1,W |
| 135 ; bz TFT_write_flash_image_1 ; width > 8bits ? | |
| 604 | 136 ; movf win_height,W ; YES - add extra |
| 582 | 137 ; addwf PRODH,F |
| 604 | 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 |
| 604 | 144 ; Index_out 0x22 ; frame memory data write start |
| 145 ; RS_H ; data | |
| 151 | 146 ; |
| 147 ;TFT_write_flash_image_loop: | |
| 604 | 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 ; |
| 604 | 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 |
| 604 | 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 ; | |
| 604 | 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 | |
| 604 | 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: |
| 604 | 194 RS_L ; command |
| 195 clrf PORTA ; upper | |
| 582 | 196 bcf INTCON,GIE |
| 604 | 197 movwf PORTH ; lower |
| 0 | 198 WR_L |
| 604 | 199 WR_H ; tick |
| 582 | 200 bsf INTCON,GIE |
| 201 return | |
| 0 | 202 |
| 582 | 203 global TFT_DataWrite |
| 0 | 204 TFT_DataWrite: |
| 604 | 205 RS_H ; data |
| 582 | 206 bcf INTCON,GIE |
| 604 | 207 movwf PORTH ; lower |
| 0 | 208 WR_L |
| 604 | 209 WR_H ; tick |
| 582 | 210 bsf INTCON,GIE |
| 0 | 211 return |
| 212 | |
| 213 ;============================================================================= | |
| 582 | 214 |
| 215 global TFT_ClearScreen | |
| 0 | 216 TFT_ClearScreen: |
| 604 | 217 Index_out 0x50 ; window horizontal start address |
| 582 | 218 Parameter_out 0x00, 0x00 ; 0-239 |
| 604 | 219 Index_out 0x51 ; window horizontal end address |
| 582 | 220 Parameter_out 0x00, 0xEF ; 0-239 |
| 604 | 221 Index_out 0x52 ; window vertical start address |
| 582 | 222 Parameter_out 0x00, 0x00 ; 0-319 |
| 604 | 223 Index_out 0x53 ; window vertical end address |
| 582 | 224 Parameter_out 0x01, 0x3F ; 0-319 |
| 604 | 225 Index_out 0x20 ; frame memory horizontal address |
| 582 | 226 Parameter_out 0x00, 0x00 ; 0-239 |
| 604 | 227 Index_out 0x21 ; frame memory vertical address |
| 582 | 228 Parameter_out 0x01, 0x3F ; 0-319 |
| 0 | 229 |
| 604 | 230 Index_out 0x22 ; frame memory data write start |
| 0 | 231 |
| 604 | 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: | |
| 604 | 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 | |
| 604 | 247 WR_H ; tick |
| 0 | 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 | |
| 604 | 257 bra TFT_CmdWrite ; and return |
| 582 | 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' |
| 604 | 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 | |
| 604 | 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 |
| 604 | 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 ? | |
| 604 | 353 bra TFT_boot2 ; YES |
| 360 | 354 |
| 582 | 355 btfss screen_type ; display1? |
| 604 | 356 bra TFT_boot1a ; NO |
| 582 | 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? |
| 604 | 364 bra TFT_boot2a ; NO |
| 582 | 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 | |
| 604 | 399 bra display0_config_write ; write config pair to display |
| 582 | 400 ; Delay ms or quit (return) |
| 401 TBLRD*+ | |
| 604 | 402 tstfsz TABLAT ; end of config? |
| 403 bra $+4 ; NO | |
| 404 return ; YES - done | |
| 582 | 405 movf TABLAT,W |
| 604 | 406 call WAITMSX ; wait WREG milliseconds |
| 407 TBLRD*+ ; dummy read (Third byte of delay command) | |
| 408 bra display0_init_loop ; loop | |
| 0 | 409 |
| 604 | 410 display0_config_write: ; with command in WREG |
| 582 | 411 movf TABLAT,W |
| 604 | 412 rcall TFT_CmdWrite ; write command |
| 413 TBLRD*+ ; get config0 | |
| 582 | 414 movff TABLAT,PORTA |
| 604 | 415 TBLRD*+ ; get config1 |
| 582 | 416 movf TABLAT,W |
| 604 | 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: | |
| 604 | 426 ; clrf CCPR1L ; backlight off |
| 582 | 427 ; [draw splash screen] |
| 428 ; call TFT_DisplayFadeIn | |
| 429 | |
| 430 global TFT_Display_FadeIn | |
| 0 | 431 TFT_Display_FadeIn: |
| 604 | 432 movlw CCP1CON_VALUE ; see hwos.inc |
| 582 | 433 movwf CCP1CON |
| 604 | 434 bsf tft_is_dimming ; TFT is dimming, ignore ambient sensor |
| 435 clrf CCPR1L ; backlight off - to be sure | |
| 582 | 436 movff max_CCPR1L,PRODL |
| 0 | 437 TFT_Display_FadeIn_0: |
| 604 | 438 incf CCPR1L,F ; duty cycle |
| 582 | 439 WAITMS d'2' |
| 440 decfsz PRODL,F | |
| 441 bra TFT_Display_FadeIn_0 | |
| 604 | 442 bcf tft_is_dimming ; dimming done |
| 582 | 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 |
| 604 | 452 bsf tft_is_dimming ; TFT is dimming, ignore ambient sensor |
| 0 | 453 TFT_Display_FadeOut_0: |
| 604 | 454 movff PRODL,CCPR1L ; duty cycle |
| 582 | 455 WAITMS d'1' |
| 456 decfsz PRODL,F | |
| 457 bra TFT_Display_FadeOut_0 | |
| 458 clrf CCPR1L | |
| 459 return | |
| 0 | 460 |
| 461 ;============================================================================= | |
| 462 | |
| 604 | 463 global box_std_block, box_black_block, box_color_block |
| 0 | 464 |
| 604 | 465 box_std_block: ; use white color |
| 582 | 466 setf WREG |
| 467 bra box_common | |
| 604 | 468 box_black_block: ; use black color |
| 582 | 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 | |
| 604 | 512 ; rcall pixel_write_col320 ; start address vertical (.0 - .319) |
| 582 | 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 | |
| 604 | 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 | |
| 582 | 528 mullw 2 |
| 529 infsnz PRODL ; +1 | |
| 530 incf PRODH | |
| 531 rcall pixel_write_col320 | |
| 604 | 532 bra half_pixel_write ; note: Cmd 0x20 is mandatory, because |
| 582 | 533 ; of the auto-increment going vertical |
| 0 | 534 |
| 535 global pixel_write_col320 | |
| 536 pixel_write_col320: | |
| 582 | 537 btfsc screen_type ; display1? |
| 604 | 538 bra pixel_write_col320_d1 ; YES |
| 582 | 539 ; Display0 |
| 540 btfss flip_screen ; 180° rotation? | |
| 604 | 541 bra pixel_write_noflip_H ; NO |
| 542 bra pixel_write_flip_H ; YES | |
| 582 | 543 pixel_write_col320_d1: ; Display1 |
| 544 btfsc flip_screen ; 180° rotation? | |
| 604 | 545 bra pixel_write_noflip_H ; YES for d1 |
| 546 pixel_write_flip_H: ; flip d0 | |
| 547 movf PRODL,W ; 16 bits 319 - PROD --> PROD | |
| 582 | 548 sublw LOW(.319) ; 319-W --> W |
| 549 movwf PRODL | |
| 550 movf PRODH,W | |
| 604 | 551 btfss STATUS,C ; borrow = /CARRY |
| 582 | 552 incf WREG |
| 553 sublw HIGH(.319) | |
| 554 movwf PRODH | |
| 151 | 555 |
| 556 pixel_write_noflip_H: | |
| 604 | 557 Index_out 0x21 ; frame memory vertical address |
| 582 | 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 | |
| 604 | 572 mullw .1 ; copy row to PRODL (PRODH=0) |
| 573 Index_out 0x20 ; frame memory horizontal address | |
| 582 | 574 rcall TFT_DataWrite_PROD |
| 0 | 575 |
| 604 | 576 Index_out 0x22 ; frame memory data write start |
| 577 RS_H ; data | |
| 582 | 578 bcf INTCON,GIE |
| 604 | 579 movff win_color1,PORTA ; upper |
| 580 movff win_color2,PORTH ; lower | |
| 582 | 581 WR_L |
| 604 | 582 WR_H ; tick |
| 582 | 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: | |
| 604 | 593 clrf TABLAT ; loop index |
| 0 | 594 |
| 595 half_vertical_line_loop: | |
| 604 | 596 movf win_leftx2,W ; init X position |
| 582 | 597 mullw .2 |
| 604 | 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 |
| 604 | 603 movf win_height,W ; index reached height (bank0 read) ? |
| 582 | 604 xorwf TABLAT,W |
| 604 | 605 btfsc STATUS,Z ; Equal ? |
| 606 return ; YES - done | |
| 607 movf win_top,W ; Y = top + index (bank0 read) | |
| 582 | 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: | |
| 604 | 620 clrf TABLAT ; loop index |
| 0 | 621 |
| 622 half_horizontal_line_loop: | |
| 604 | 623 movf win_leftx2,W ; init X position |
| 582 | 624 mullw .2 |
| 604 | 625 rcall pixel_write_col320 ; start address vertical (.0 - .319) |
| 626 movf win_width,W ; index reached height (bank0 read) ? | |
| 582 | 627 xorwf TABLAT,W |
| 604 | 628 btfsc STATUS,Z ; equal ? |
| 629 return ; YES - done | |
| 630 movf win_top,W ; Y = top + index (bank0 read) | |
| 582 | 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: |
| 604 | 642 ; RD_H ; keep high |
| 643 RS_H ; data | |
| 582 | 644 bcf INTCON,GIE |
| 604 | 645 movff PRODH,PORTA ; move high byte to PORTA |
| 646 movff PRODL,PORTH ; move low byte to PORTH | |
| 0 | 647 WR_L |
| 604 | 648 WR_H ; tick |
| 582 | 649 bsf INTCON,GIE |
| 0 | 650 return |
| 651 | |
| 652 TFT_DataRead_PROD: | |
| 604 | 653 Index_out 0x22 ; frame memory data read start |
| 360 | 654 TFT_CmdRead_PROD: |
| 604 | 655 setf TRISA ; port A as input |
| 656 setf TRISH ; port H as input | |
| 657 RS_H ; data | |
| 658 WR_H ; not write | |
| 659 RD_L ; read | |
| 582 | 660 nop |
| 661 nop | |
| 662 nop | |
| 604 | 663 RD_H ; tick |
| 582 | 664 nop |
| 665 nop | |
| 666 nop | |
| 604 | 667 RD_L ; read |
| 582 | 668 nop |
| 669 ;nop | |
| 670 ;nop | |
| 671 movff PORTA,PRODH | |
| 672 movff PORTH,PRODL | |
| 604 | 673 RD_H ; tick |
| 582 | 674 nop |
| 604 | 675 clrf TRISA ; port A as output |
| 676 clrf TRISH ; port H as output | |
| 0 | 677 return |
| 678 | |
| 679 ;============================================================================= | |
| 604 | 680 ; Output TFT Window Address commands |
| 681 ; Inputs : win_top, win_leftx2, win_height, win_width | |
| 682 ; Output : PortA/PortH commands | |
| 0 | 683 ; Trashed: PROD |
| 582 | 684 |
| 685 global TFT_box_write | |
| 0 | 686 TFT_box_write: |
| 604 | 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 |
| 604 | 691 TFT_box_write_16bit_win_left: ; Wwth column in PRODL:PRODH |
| 582 | 692 btfsc screen_type ; display1? |
| 604 | 693 bra TFT_box_write_16bit_win_left_d1 ; YES |
| 582 | 694 ; Display0 |
| 695 btfsc flip_screen ; 180° rotation? | |
| 604 | 696 bra DISP_box_flip_H ; YES |
| 697 bra TFT_box_write_16bit_win_left_com ; NO | |
| 582 | 698 TFT_box_write_16bit_win_left_d1: ; Display1 |
| 699 btfss flip_screen ; 180° rotation? | |
| 604 | 700 bra DISP_box_flip_H ; NO for d1 |
| 582 | 701 ; Yes for d1 |
| 361 | 702 TFT_box_write_16bit_win_left_com: |
| 582 | 703 ;---- Normal horizontal window --------------------------------------- |
| 604 | 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 |
| 604 | 717 Index_out 0x53 ; window vertical end address |
| 582 | 718 rcall TFT_DataWrite_PROD |
| 719 bra DISP_box_noflip_H | |
| 0 | 720 |
| 582 | 721 ;---- Flipped horizontal window -------------------------------------- |
| 151 | 722 DISP_box_flip_H: |
| 604 | 723 movf PRODL,W ; 16 bits 319 - PROD --> PROD |
| 724 sublw LOW(.319) ; 319 - WREG --> WREG | |
| 582 | 725 movwf PRODL |
| 726 movf PRODH,W | |
| 604 | 727 btfss STATUS,C ; borrow = /CARRY |
| 582 | 728 incf WREG |
| 729 sublw HIGH(.319) | |
| 730 movwf PRODH | |
|
152
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|
731 |
| 604 | 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 |
| 604 | 737 movf win_width+0,W ; 16 bits PROD - width --> PROD |
| 582 | 738 subwf PRODL,F ; PRODL - WREG --> PRODL |
| 739 movf win_width+1,W | |
| 740 subwfb PRODH,F | |
| 604 | 741 infsnz PRODL ; PROD + 1 --> PROD |
| 582 | 742 incf PRODH |
| 151 | 743 |
| 604 | 744 Index_out 0x52 ; window vertical end address |
| 582 | 745 rcall TFT_DataWrite_PROD |
| 151 | 746 |
| 747 DISP_box_noflip_H: | |
| 582 | 748 btfss flip_screen ; 180° rotation ? |
| 604 | 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 |
| 604 | 756 movwf PRODL ; top + height - 1 --> PRODL (second byte) |
| 151 | 757 |
| 604 | 758 Index_out 0x50 ; window horizontal start address |
| 432 | 759 movf PRODH,W |
| 604 | 760 rcall TFT_DataWrite ; lower (and tick) |
| 151 | 761 |
| 604 | 762 Index_out 0x51 ; window horizontal end address |
| 582 | 763 movf PRODL,W |
| 604 | 764 rcall TFT_DataWrite ; lower (and tick) |
| 582 | 765 |
| 604 | 766 Index_out 0x20 ; frame memory horizontal address |
| 432 | 767 movf PRODH,W |
| 604 | 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 | |
| 604 | 776 movwf PRODH ; first byte |
| 0 | 777 |
| 432 | 778 movf PRODL,W |
| 604 | 779 sublw .239 ; 239 - top |
| 780 movwf PRODL ; --> second byte | |
| 0 | 781 |
| 604 | 782 Index_out 0x50 ; window horizontal start address |
| 432 | 783 movf PRODH,W |
| 604 | 784 rcall TFT_DataWrite ; lower (and tick) |
| 0 | 785 |
| 604 | 786 Index_out 0x51 ; window horizontal end address |
| 432 | 787 movf PRODL,W |
| 604 | 788 rcall TFT_DataWrite ; lower (and tick) |
| 0 | 789 |
| 604 | 790 Index_out 0x20 ; frame memory horizontal address |
| 432 | 791 movf PRODL,W |
| 604 | 792 bra TFT_DataWrite ; lower (and tick) and return |
| 582 | 793 |
| 0 | 794 |
| 795 ;============================================================================= | |
| 604 | 796 ; TFT_frame : draw a frame around current box with current color |
| 0 | 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: | |
| 604 | 803 movff win_top,save_top ; backup everything |
| 582 | 804 movff win_height,save_height |
| 805 movff win_leftx2,save_left | |
| 806 movff win_width,save_width | |
| 0 | 807 |
| 582 | 808 ;---- TOP line ----------------------------------------------------------- |
| 604 | 809 movlw .1 ; row ~ height = 1 |
| 582 | 810 movwf win_height |
| 811 rcall TFT_box | |
| 0 | 812 |
| 582 | 813 ;---- BOTTOM line -------------------------------------------------------- |
| 604 | 814 movff save_top,PRODL ; get back top |
| 815 movff save_height,WREG ; get back height | |
| 816 addwf PRODL,W ; top + height | |
| 817 decf WREG ; top + height - 1 | |
| 818 movwf win_top ; top + height - 1 --> top | |
| 582 | 819 rcall TFT_box |
| 0 | 820 |
| 582 | 821 ;---- LEFT column -------------------------------------------------------- |
| 604 | 822 movff save_top,win_top ; restore top/height |
| 582 | 823 movff save_height,win_height |
| 604 | 824 movlw .1 ; column ~ width = 1 |
| 582 | 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 ;============================================================================= | |
| 604 | 842 ; TFT_box: fills current box with current color |
| 843 ; Inputs : win_top, win_leftx2, win_height, win_width, win_color1, win_color2 | |
| 0 | 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 | |
| 604 | 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 -------------------------------------------------------- |
| 604 | 862 Index_out 0x22 ; frame memory data write start |
| 0 | 863 |
| 604 | 864 clrf PRODH ; column counter |
| 865 RS_H ; data | |
| 0 | 866 |
| 604 | 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 |
| 604 | 872 movff win_color1,PORTA ; upper |
| 873 movff win_color2,PORTH ; lower | |
| 0 | 874 WR_L |
| 604 | 875 WR_H ; tick |
| 582 | 876 |
| 604 | 877 ; movff win_color1,PORTA ; upper |
| 878 ; movff win_color2,PORTH ; lower | |
| 0 | 879 WR_L |
| 604 | 880 WR_H ; tick |
| 582 | 881 bsf INTCON,GIE |
| 882 decfsz PRODL,F ; row loop finished ? | |
| 604 | 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 | |
| 604 | 889 bra TFT_box4 ; NO - just loop |
| 890 clrf win_color1 ; Yes - switch to black | |
| 891 clrf win_color2 ; - ... | |
| 0 | 892 TFT_box4: |
| 582 | 893 movf win_width+0,W ; compare ? |
| 894 xorwf PRODH,W | |
| 604 | 895 bnz TFT_box2 ; Loop not finished |
| 0 | 896 |
| 582 | 897 movlw 0x00 ; NOP, to stop window mode |
| 898 rcall TFT_CmdWrite | |
| 0 | 899 |
| 604 | 900 ; reset bargraph mode... |
| 582 | 901 setf win_bargraph |
| 902 return | |
| 0 | 903 |
| 904 ;============================================================================= | |
| 604 | 905 ; Converts 8 bit RGB b'RRRGGGBB' into 16 bit RGB b'RRRRRGGGGGGBBBBB' |
| 0 | 906 |
| 582 | 907 global TFT_set_color |
| 0 | 908 TFT_set_color: |
| 604 | 909 movwf tft_temp1 ; get 8 Bit RGB b'RRRGGGBB' |
| 910 movwf tft_temp2 ; copy | |
| 0 | 911 |
| 604 | 912 ; mask bit 7,6,5,4,3,2 |
| 0 | 913 movlw b'00000011' |
| 914 andwf tft_temp2,F | |
| 915 | |
| 916 movlw b'00000000' | |
| 917 dcfsnz tft_temp2,F | |
| 918 movlw b'01010000' | |
| 919 dcfsnz tft_temp2,F | |
| 920 movlw b'10100000' | |
| 921 dcfsnz tft_temp2,F | |
| 922 movlw b'11111000' | |
| 604 | 923 movwf tft_temp3 ; blue done |
| 0 | 924 |
| 604 | 925 movff tft_temp1,tft_temp2 ; copy |
| 926 ; mask bit 7,6,5,1,0 | |
| 0 | 927 movlw b'00011100' |
| 928 andwf tft_temp2,F | |
| 929 rrncf tft_temp2,F | |
| 930 rrncf tft_temp2,F | |
| 931 | |
| 932 movlw b'00000000' | |
| 933 dcfsnz tft_temp2,F | |
| 934 movlw b'00000100' | |
| 935 dcfsnz tft_temp2,F | |
| 936 movlw b'00001000' | |
| 937 dcfsnz tft_temp2,F | |
| 938 movlw b'00001100' | |
| 939 dcfsnz tft_temp2,F | |
| 940 movlw b'00010000' | |
| 941 dcfsnz tft_temp2,F | |
| 942 movlw b'00010100' | |
| 943 dcfsnz tft_temp2,F | |
| 944 movlw b'00100000' | |
| 945 dcfsnz tft_temp2,F | |
| 946 movlw b'00111111' | |
| 582 | 947 movwf tft_temp4 |
| 0 | 948 |
| 949 rrcf tft_temp4,F | |
| 950 rrcf tft_temp3,F | |
| 951 | |
| 952 rrcf tft_temp4,F | |
| 953 rrcf tft_temp3,F | |
| 954 | |
| 955 rrcf tft_temp4,F | |
| 604 | 956 rrcf tft_temp3,W ; tft_temp3 (b'GGGBBBBB') done |
| 957 movwf win_color2 ; set color registers... | |
| 0 | 958 |
| 604 | 959 movff tft_temp1,tft_temp2 ; copy |
| 0 | 960 clrf tft_temp1 |
| 961 | |
| 962 rrcf tft_temp4,F | |
| 963 rrcf tft_temp1,F | |
| 964 | |
| 965 rrcf tft_temp4,F | |
| 966 rrcf tft_temp1,F | |
| 967 | |
| 968 rrcf tft_temp4,F | |
| 604 | 969 rrcf tft_temp1,F ; green done |
| 0 | 970 |
| 604 | 971 ; mask bit 4,3,2,1,0 |
| 0 | 972 movlw b'11100000' |
| 973 andwf tft_temp2,F | |
| 974 | |
| 975 rrncf tft_temp2,F | |
| 976 rrncf tft_temp2,F | |
| 977 rrncf tft_temp2,F | |
| 978 rrncf tft_temp2,F | |
| 979 rrncf tft_temp2,F | |
| 980 | |
| 981 movlw b'00000000' | |
| 982 dcfsnz tft_temp2,F | |
| 983 movlw b'00000100' | |
| 984 dcfsnz tft_temp2,F | |
| 985 movlw b'00001000' | |
| 986 dcfsnz tft_temp2,F | |
| 987 movlw b'00001100' | |
| 988 dcfsnz tft_temp2,F | |
| 989 movlw b'00010000' | |
| 990 dcfsnz tft_temp2,F | |
| 991 movlw b'00010100' | |
| 992 dcfsnz tft_temp2,F | |
| 993 movlw b'00100000' | |
| 994 dcfsnz tft_temp2,F | |
| 995 movlw b'00111111' | |
| 582 | 996 movwf tft_temp4 |
| 0 | 997 |
| 998 rrcf tft_temp4,F | |
| 999 rrcf tft_temp1,F | |
| 1000 | |
| 1001 rrcf tft_temp4,F | |
| 604 | 1002 rrcf tft_temp1,F |
| 0 | 1003 |
| 1004 rrcf tft_temp4,F | |
| 1005 rrcf tft_temp1,F | |
| 1006 | |
| 1007 rrcf tft_temp4,F | |
| 1008 rrcf tft_temp1,F | |
| 1009 | |
| 1010 rrcf tft_temp4,F | |
| 604 | 1011 rrcf tft_temp1,W ; red done |
| 1012 movwf win_color1 ; set color registers | |
| 0 | 1013 return |
| 1014 | |
| 1015 ;============================================================================= | |
| 1016 ; Dump screen contents to the UART | |
| 1017 | |
| 604 | 1018 IFDEF _screendump |
| 1019 | |
| 1020 global TFT_dump_screen_check | |
| 582 | 1021 global TFT_dump_screen |
| 604 | 1022 TFT_dump_screen_check: |
| 1023 btfss vusb_in ; USB (still) plugged in? | |
| 1024 bcf enable_screen_dumps ; NO - clear flag | |
| 1025 call rs232_get_byte ; try to read data from RS232 | |
| 1026 btfsc rs232_receive_overflow ; anything received? | |
| 1027 return ; NO - return | |
| 1028 movlw "l" ; YES - load coding for screendump command | |
| 1029 cpfseq RCREG1 ; screendump command received? | |
| 1030 return ; NO - return | |
| 1031 TFT_dump_screen: ; YES | |
| 582 | 1032 bsf no_sensor_int |
| 1033 movlw 'l' | |
| 604 | 1034 movwf TXREG ; send command echo |
| 582 | 1035 call rs232_wait_tx ; wait for UART |
| 604 | 1036 |
| 582 | 1037 ;---- Send DISPLAY box command for the full screen window ------------------- |
| 604 | 1038 Index_out 0x50 ; window horizontal start address |
| 582 | 1039 Parameter_out 0x00, 0x00 ; 0-239 |
| 604 | 1040 Index_out 0x51 ; window horizontal end address |
| 582 | 1041 Parameter_out 0x00, 0xEF ; 0-239 |
| 604 | 1042 Index_out 0x52 ; window vertical start address |
| 582 | 1043 Parameter_out 0x00, 0x00 ; 0-319 |
| 604 | 1044 Index_out 0x53 ; window vertical end address |
| 582 | 1045 Parameter_out 0x01, 0x3F ; 0-319 |
| 0 | 1046 |
| 582 | 1047 clrf ds_column |
| 1048 rcall dump_screen_pixel_reset | |
| 0 | 1049 dump_screen_1: |
| 582 | 1050 btg LEDr ; LED activity toggle |
| 1051 ; Dump even column | |
| 604 | 1052 movlw .240 ; 240 lines, once |
| 582 | 1053 movwf ds_line |
| 0 | 1054 dump_screen_2: |
| 604 | 1055 Index_out 0x20 ; frame memory horizontal address |
| 582 | 1056 movff ds_line,WREG ; d'0' ... d'239' |
| 604 | 1057 mullw .1 ; copy row to PRODH:L |
| 582 | 1058 rcall TFT_DataWrite_PROD |
| 0 | 1059 |
| 604 | 1060 movff ds_column,WREG ; Init X position |
| 582 | 1061 mullw 2 |
| 604 | 1062 rcall pixel_write_col320 ; start address vertical (.0 - .319) |
| 0 | 1063 |
| 582 | 1064 rcall TFT_DataRead_PROD ; read pixel |
| 1065 rcall dump_screen_pixel | |
| 0 | 1066 |
| 582 | 1067 decfsz ds_line,F |
| 1068 bra dump_screen_2 | |
| 1069 rcall dump_screen_pixel_flush | |
| 0 | 1070 |
| 582 | 1071 ; Dump odd column |
| 604 | 1072 movlw .240 ; 240 lines, twice |
| 582 | 1073 movwf ds_line |
| 0 | 1074 dump_screen_3: |
| 604 | 1075 Index_out 0x20 ; frame memory horizontal address |
| 582 | 1076 movff ds_line,WREG ; d'0' ... d'239' |
| 604 | 1077 mullw 1 ; copy row to PRODH:L |
| 582 | 1078 rcall TFT_DataWrite_PROD |
| 0 | 1079 |
| 604 | 1080 movff ds_column,WREG ; init X position |
| 582 | 1081 mullw 2 |
| 1082 movlw .1 | |
| 1083 addwf PRODL,F | |
| 1084 movlw 0 | |
| 1085 addwfc PRODH,F ; +1 | |
| 604 | 1086 rcall pixel_write_col320 ; start address vertical (.0 - .319) |
| 0 | 1087 |
| 582 | 1088 rcall TFT_DataRead_PROD ; read pixel |
| 1089 rcall dump_screen_pixel | |
| 0 | 1090 |
| 582 | 1091 decfsz ds_line,F |
| 1092 bra dump_screen_3 | |
| 1093 rcall dump_screen_pixel_flush | |
| 0 | 1094 |
| 582 | 1095 incf ds_column,F |
| 1096 movlw .160 | |
| 1097 cpfseq ds_column | |
| 1098 bra dump_screen_1 | |
| 0 | 1099 |
| 582 | 1100 bcf no_sensor_int |
| 604 | 1101 clrf RCREG1 ; clear receive buffer |
| 1102 bcf RCSTA1,CREN ; clear receiver status | |
| 582 | 1103 bsf RCSTA1,CREN |
| 604 | 1104 bsf enable_screen_dumps ; =1: Ignore vin_usb, wait for "l" command (screen dump) |
| 582 | 1105 return |
| 0 | 1106 |
| 604 | 1107 ENDIF |
| 1108 | |
| 0 | 1109 |
| 1110 ;============================================================================= | |
| 1111 ; Pixel compression | |
| 1112 ; | |
| 604 | 1113 ; Input : PRODH:L = pixel |
| 0 | 1114 ; Output: Compressed stream on output. |
| 1115 ; Compressed format: | |
| 604 | 1116 ; 0ccccccc : BLACK pixel, repeated ccccccc+1 times (1..128) |
| 1117 ; 11cccccc : WHITE pixel, repeated cccccc+1 times (1.. 64) | |
| 1118 ; 10cccccc HIGH LOW : color pixel (H:L) repeated ccccc+1 times (1.. 64) | |
| 1119 | |
| 1120 IFDEF _screendump | |
| 582 | 1121 |
| 0 | 1122 dump_screen_pixel: |
| 604 | 1123 movf PRODH,W ; compare pixel-high |
| 582 | 1124 xorwf ds_pixel+1,W |
| 604 | 1125 bnz dump_screen_pixel_1 ; different -> dump |
| 0 | 1126 |
| 604 | 1127 movf PRODL,W ; compare pixel-low |
| 582 | 1128 xorwf ds_pixel+0,W |
| 604 | 1129 bnz dump_screen_pixel_1 ; different -> dump |
| 0 | 1130 |
| 604 | 1131 incf ds_count,F ; same color: just increment |
| 582 | 1132 return |
| 0 | 1133 |
| 604 | 1134 dump_screen_pixel_1: ; send (pixel,count) tuple |
| 1135 movf ds_count,W ; is count zero ? | |
| 1136 bz dump_screen_pixel_2 ; YES - skip sending | |
| 0 | 1137 |
| 604 | 1138 movf ds_pixel+1,W ; is this a BLACK pixel ? |
| 582 | 1139 iorwf ds_pixel+0,W |
| 604 | 1140 bz dump_screen_pix_black ; YES |
| 0 | 1141 |
| 604 | 1142 movf ds_pixel+1,W ; is this a white pixel ? |
| 582 | 1143 andwf ds_pixel+0,W |
| 1144 incf WREG | |
| 604 | 1145 bz dump_screen_pix_white ; YES |
| 0 | 1146 |
| 582 | 1147 ; No: write the pixel itself... |
| 604 | 1148 movlw .64 ; max color pixel on a single byte |
| 1149 cpfsgt ds_count ; skip if count > 64 | |
| 582 | 1150 movf ds_count,W ; W <- min(64,count) |
| 1151 subwf ds_count,F ; ds_count <- ds_count-W | |
| 604 | 1152 decf WREG ; save as 0..63 |
| 1153 iorlw b'10000000' ; mark as a color pixel | |
| 0 | 1154 |
| 582 | 1155 movwf TXREG |
| 1156 call rs232_wait_tx ; wait for UART | |
| 1157 movff ds_pixel+1,TXREG | |
| 1158 call rs232_wait_tx ; wait for UART | |
| 1159 movff ds_pixel+0,TXREG | |
| 1160 call rs232_wait_tx ; wait for UART | |
| 1161 bra dump_screen_pixel_1 | |
| 0 | 1162 |
| 1163 dump_screen_pixel_2: | |
| 604 | 1164 movff PRODH,ds_pixel+1 ; save new pixel color |
| 582 | 1165 movff PRODL,ds_pixel+0 |
| 1166 movlw 1 | |
| 604 | 1167 movwf ds_count ; and set count=1 |
| 582 | 1168 return |
| 0 | 1169 |
| 1170 dump_screen_pix_black: | |
| 604 | 1171 movlw .128 ; max black pixel on a single byte |
| 1172 cpfsgt ds_count ; skip if count > 128 | |
| 582 | 1173 movf ds_count,W ; W <- min(128,count) |
| 1174 subwf ds_count,F ; ds_count <- ds_count-W | |
| 604 | 1175 decf WREG ; save as 0..127 |
| 0 | 1176 dump_screen_pix_3: |
| 582 | 1177 movwf TXREG |
| 1178 call rs232_wait_tx | |
| 604 | 1179 bra dump_screen_pixel_1 ; more to dump ? |
| 0 | 1180 |
| 1181 dump_screen_pix_white: | |
| 604 | 1182 movlw .64 ; max white pixel on a single byte |
| 1183 cpfsgt ds_count ; skip if count > 64 | |
| 582 | 1184 movf ds_count,W ; W <- min(64,count) |
| 1185 subwf ds_count,F ; ds_count <- ds_count-W | |
| 1186 decf WREG ; Save as 0..63 | |
| 604 | 1187 iorlw b'11000000' ; mark as a compressed white |
| 582 | 1188 bra dump_screen_pix_3 |
| 0 | 1189 |
| 1190 dump_screen_pixel_flush: | |
| 582 | 1191 clrf PRODH |
| 1192 clrf PRODL | |
| 604 | 1193 rcall dump_screen_pixel_1 ; send it |
| 0 | 1194 dump_screen_pixel_reset: |
| 604 | 1195 clrf ds_count ; clear count |
| 582 | 1196 return |
| 0 | 1197 |
| 604 | 1198 ENDIF |
| 1199 | |
| 582 | 1200 END |