lcd.s

avr icc 平台开发的pwm模拟功能

	.even
_Init_LCD::
	.dbline -1
	.dbline 162
; // ********************************* //
; // *** Initialize the LCD driver *** //
; // ********************************* //
; void Init_LCD(void)
; {
	.dbline 163
; LCD_INIT();
	xcall _LCD_INIT
	.dbline 164
; LCD_WriteControl (LCD_FUNCTION_SET);
	ldi R16,40
	xcall _LCD_WriteControl
	.dbline 165
; LCD_WriteControl (LCD_OFF);
	ldi R16,8
	xcall _LCD_WriteControl
	.dbline 166
; LCD_WriteControl (LCD_CLEAR);
	ldi R16,1
	xcall _LCD_WriteControl
	.dbline 167
; LCD_WriteControl (LCD_MODE_SET);
	ldi R16,6
	xcall _LCD_WriteControl
	.dbline 168
; LCD_WriteControl (LCD_ON);
	ldi R16,12
	xcall _LCD_WriteControl
	.dbline 169
; LCD_WriteControl (LCD_HOME);
	ldi R16,2
	.dbline -2
	.dbline 170
; }
L8:
	.dbline 0 ; func end
	xjmp _LCD_WriteControl
	.dbend
	.dbfunc e LCD_Clear _LCD_Clear fV
	.even
_LCD_Clear::
	.dbline -1
	.dbline 175
; // ************************************************ //
; // *** Clear the LCD screen (also homes cursor) *** //
; // ************************************************ //
; void LCD_Clear(void)
; {
	.dbline 176
; LCD_WriteControl(0x01);
	ldi R16,1
	.dbline -2
	.dbline 177
; }
L9:
	.dbline 0 ; func end
	xjmp _LCD_WriteControl
	.dbend
	.dbfunc e LCD_Home _LCD_Home fV
	.even
_LCD_Home::
	.dbline -1
	.dbline 182
; // *********************************************** //
; // *** Position the LCD cursor at row 1, col 1 *** //
; // *********************************************** //
; void LCD_Home(void)
; {
	.dbline 183
; LCD_WriteControl(0x02);
	ldi R16,2
	.dbline -2
	.dbline 184
; }
L10:
	.dbline 0 ; func end
	xjmp _LCD_WriteControl
	.dbend
	.dbfunc e LCD_DisplayCharacter _LCD_DisplayCharacter fV
;           Char -> R20
	.even
_LCD_DisplayCharacter::
	xcall push_gset1
	mov R20,R16
	.dbline -1
	.dbline 189
; // ****************************************************************** //
; // *** Display a single character, at the current cursor location *** //
; // ****************************************************************** //
; void LCD_DisplayCharacter (char Char)
; {
	.dbline 190
; LCD_WriteData (Char);
	mov R16,R20
	xcall _LCD_WriteData
	.dbline -2
	.dbline 191
; }
L11:
	xcall pop_gset1
	.dbline 0 ; func end
	ret
	.dbsym r Char 20 c
	.dbend
	.dbfunc e LCD_DisplayString_F _LCD_DisplayString_F fV
;         string -> R20,R21
;         column -> R10
;            row -> R22
	.even
_LCD_DisplayString_F::
	xcall push_gset3
	mov R10,R18
	mov R22,R16
	ldd R20,y+6
	ldd R21,y+7
	.dbline -1
	.dbline 196
; // ********************************************************************* //
; // *** Display a string at the specified row and column, using FLASH *** //
; // ********************************************************************* //
; void LCD_DisplayString_F (char row, char column ,const unsigned char  *string)
; {
	.dbline 197
; LCD_Cursor (row, column);
	mov R18,R10
	mov R16,R22
	xcall _LCD_Cursor
	xjmp L14
L13:
	.dbline 199
	.dbline 200
	movw R2,R20
	subi R20,255  ; offset = 1
	sbci R21,255
	movw R30,R2
	lpm R16,Z
	xcall _LCD_DisplayCharacter
	.dbline 201
L14:
	.dbline 198
; while (*string)
	movw R30,R20
	lpm R30,Z
	tst R30
	brne L13
	.dbline -2
	.dbline 202
; {
; LCD_DisplayCharacter (*string++);
; }
; }
L12:
	xcall pop_gset3
	.dbline 0 ; func end
	ret
	.dbsym r string 20 pkc
	.dbsym r column 10 c
	.dbsym r row 22 c
	.dbend
	.dbfunc e LCD_DisplayString _LCD_DisplayString fV
;         string -> R20,R21
;         column -> R10
;            row -> R22
	.even
_LCD_DisplayString::
	xcall push_gset3
	mov R10,R18
	mov R22,R16
	ldd R20,y+6
	ldd R21,y+7
	.dbline -1
	.dbline 207
; // ******************************************************************* //
; // *** Display a string at the specified row and column, using RAM *** //
; // ******************************************************************* //
; void LCD_DisplayString (char row, char column ,unsigned char *string)
; {
	.dbline 208
; LCD_Cursor (row, column);
	mov R18,R10
	mov R16,R22
	xcall _LCD_Cursor
	xjmp L18
L17:
	.dbline 210
	movw R30,R20
	ld R16,Z+
	movw R20,R30
	xcall _LCD_DisplayCharacter
L18:
	.dbline 209
; while (*string)
	movw R30,R20
	ldd R2,z+0
	tst R2
	brne L17
	.dbline -2
	.dbline 211
; LCD_DisplayCharacter (*string++);
; }
L16:
	xcall pop_gset3
	.dbline 0 ; func end
	ret
	.dbsym r string 20 pc
	.dbsym r column 10 c
	.dbsym r row 22 c
	.dbend
	.dbfunc e LCD_Cursor _LCD_Cursor fV
;         column -> R20
;            row -> R22
	.even
_LCD_Cursor::
	xcall push_gset2
	mov R20,R18
	mov R22,R16
	.dbline -1
	.dbline 216
; // *************************************************** //
; // *** Position the LCD cursor at "row", "column". *** //
; // *************************************************** //
; void LCD_Cursor (char row, char column)
; {
	.dbline 217
	clr R23
	cpi R22,1
	ldi R30,0
	cpc R23,R30
	breq L24
	cpi R22,2
	ldi R30,0
	cpc R23,R30
	breq L25
	cpi R22,3
	ldi R30,0
	cpc R23,R30
	breq L26
	cpi R22,4
	ldi R30,0
	cpc R23,R30
	breq L27
	xjmp L22
X0:
	.dbline 217
; switch (row) {
L24:
	.dbline 218
; case 1: LCD_WriteControl (0x80 + column - 1); break;
	mov R16,R20
	subi R16,128    ; addi 128
	subi R16,1
	xcall _LCD_WriteControl
	.dbline 218
	xjmp L22
L25:
	.dbline 219
; case 2: LCD_WriteControl (0xc0 + column - 1); break;
	mov R16,R20
	subi R16,64    ; addi 192
	subi R16,1
	xcall _LCD_WriteControl
	.dbline 219
	xjmp L22
L26:
	.dbline 220
; case 3: LCD_WriteControl (0x94 + column - 1); break;
	mov R16,R20
	subi R16,108    ; addi 148
	subi R16,1
	xcall _LCD_WriteControl
	.dbline 220
	xjmp L22
L27:
	.dbline 221
	mov R16,R20
	subi R16,44    ; addi 212
	subi R16,1
	xcall _LCD_WriteControl
	.dbline 221
	.dbline 222
L22:
	.dbline -2
	.dbline 224
; case 4: LCD_WriteControl (0xd4 + column - 1); break;
; default: break;
; }
; }
L20:
	xcall pop_gset2
	.dbline 0 ; func end
	ret
	.dbsym r column 20 c
	.dbsym r row 22 c
	.dbend
	.dbfunc e LCD_Cursor_On _LCD_Cursor_On fV
	.even
_LCD_Cursor_On::
	.dbline -1
	.dbline 229
; // ************************** //
; // *** Turn the cursor on *** //
; // ************************** //
; void LCD_Cursor_On (void)
; {
	.dbline 230
; LCD_WriteControl (LCD_CURS_ON);
	ldi R16,13
	.dbline -2
	.dbline 231
; }
L28:
	.dbline 0 ; func end
	xjmp _LCD_WriteControl
	.dbend
	.dbfunc e LCD_Cursor_Off _LCD_Cursor_Off fV
	.even
_LCD_Cursor_Off::
	.dbline -1
	.dbline 236
; // *************************** //
; // *** Turn the cursor off *** //
; // *************************** //
; void LCD_Cursor_Off (void)
; {
	.dbline 237
; LCD_WriteControl (LCD_ON);
	ldi R16,12
	.dbline -2
	.dbline 238
; }
L29:
	.dbline 0 ; func end
	xjmp _LCD_WriteControl
	.dbend
	.dbfunc e LCD_Display_Off _LCD_Display_Off fV
	.even
_LCD_Display_Off::
	.dbline -1
	.dbline 243
; // ******************** //
; // *** Turn Off LCD *** //
; // ******************** //
; void LCD_Display_Off (void)
; {
	.dbline 244
; LCD_WriteControl(LCD_OFF);
	ldi R16,8
	.dbline -2
	.dbline 245
; }
L30:
	.dbline 0 ; func end
	xjmp _LCD_WriteControl
	.dbend
	.dbfunc e LCD_Display_On _LCD_Display_On fV
	.even
_LCD_Display_On::
	.dbline -1
	.dbline 250
; // ******************* //
; // *** Turn On LCD *** //
; // ******************* //
; void LCD_Display_On (void)
; {
	.dbline 251
; LCD_WriteControl(LCD_ON);
	ldi R16,12
	.dbline -2
	.dbline 252
; }
L31:
	.dbline 0 ; func end
	xjmp _LCD_WriteControl
	.dbend
	.dbfunc e ClearLine _ClearLine fV
;          space -> R22,R23
;           line -> R20
	.even
_ClearLine::
	xcall push_gset2
	mov R20,R16
	sbiw R28,2
	.dbline -1
	.dbline 257
; // ******************* //
; // *** Clear line *** //
; // ******************* //
; void ClearLine(unsigned char line)
; {
	.dbline 258
;     unsigned char *space="                ";
	ldi R22,<L33
	ldi R23,>L33
	.dbline 259
;     LCD_DisplayString(line,1,space);
	std y+1,R23
	std y+0,R22
	ldi R18,1
	mov R16,R20
	xcall _LCD_DisplayString
	.dbline -2
	.dbline 260
; }
L32:
	adiw R28,2
	xcall pop_gset2
	.dbline 0 ; func end
	ret
	.dbsym r space 22 pc
	.dbsym r line 20 c
	.dbend
	.area data(ram, con, rel)
	.dbfile D:\NEW\AVR_PWM\LCD.c
L33:
	.blkb 17
	.area idata
	.byte 32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32
	.byte 0
	.area data(ram, con, rel)
	.dbfile D:\NEW\AVR_PWM\LCD.c