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LCD_Graphics_Driver.spin2
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LCD_Graphics_Driver.spin2
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'' +--------------------------------------------------------------------------+
'' | Cluso's Color LCD Demo with optional Touch Support V3.0 |
'' +--------------------------------------------------------------------------+
'' | Authors: (c)2015-2021 "Cluso99" (Ray Rodrick) |
'' | Original code for 1.44in 128x128 ILI9163 color LCD |
'' | Add code for 4.0in 480x320 ST7796S color LCD |
'' | (c)2021 "mwroberts" (Mike Roberts) |
'' | Add code for XPT2046 Touch Panel support |
'' | (c)2021 @"Greg LaPolla" (Greg LaPolla) |
'' | Modify for 2.4in & 3.2in 320x240 ILI9341 Touch LCD |
'' | (c)2021 "ManAtWork" (Nicolas Benezan) |
'' | Smart pin support, Touch Panel code -> PASM
'' | (c)2021 "Cluso99" (Ray Rodrick) |
'' | Combine to support all above in original program |
'' | Modifications: |
'' | License: MIT License - See end of file for terms of use |
'' +--------------------------------------------------------------------------+
'' RR20201105 100 copied from LCD_ILI9163_SPI_v200.spin2
'' RR20201101 2.01 RetroBlade2 test on P0-7
'' RR20201106 202 window parameters 8b -> 16b for cs, rs, ce, re
'' pixel count 16b > 32b
'' RR20201107 203 wkg
'' RR20201107 V2.0 release
'' RR20201107 204 use drvh/l rather than dira/outa to drive io pins
'' 205 tweek lines/boxes demo
'' bug: circle problem when x or y >~170 (eg larger/position of circles) maths???
'' 206 RetroBlade2 P42-47
'' RR20201108 207 fix circle bug
'' RR20201110 208 add 80*40 and 60*40 text demos
'' +--------------------------------------------------------------------------+
'' RR 210-230+ are forked versions for text only teminals
'' +--------------------------------------------------------------------------+
'' RR20210305 290 prep for v3.0 release
'' MR20210130 added touchscreen for XPT2046 (Mike Roberts)
'' RR20210305 added support for for 320x240 LCD (Greg LaPolla)
'' allow (parameterised) multiple LCD resolution/sizes, optional Touch
'' RR20210307 292 tweek code to make universal graphics, text & touch
'' RR20210308 293 pass parameters in start: PUB Start(pixels_x, pixels_y, rotate, font_x, font_y, touch_on)
'' 294 check with 1.44in 128x128 ILI9163 LCD
'' RR20210309 295 fix clock 10/11/12 display
'' +--------------------------------------------------------------------------+
'' RR20210309 v3.00 release
'' NB20210827 310 SPI with smart pins, clock timing fixed
'' NB20210828 311 touch panel code moved to PASM cog, font data -> hub RAM
'' NB20210903 312 support combined SPI pins for LCD + touch controller
'' NB20210903 313 button list added, buttonIsHit() window check
'' NB20220725 320 4bpp bitmap fetch added
'' NB20221111 321 variable pinout instead of CONs
'' NB20221112 322 variable font size instead of only 6x8 or 8x8
CON
' baud = 115_200
'' +--------------------------------------------------------------------------+
'' | Set the I/O pins with SetLcdPins() and SetTouchPins() if required |
'' | Don't forget to select your screen resolution |
'' | & touch screen options in your calling (demo) program. |
'' +--------------------------------------------------------------------------+
' Rules for pin numbers:
' * SDA and CLK must not be more than +/-3 apart
' * TCLK and TDIN must not be more than +/-3 apart
' * TCLK and TDO must not be more than +/-3 apart
' * RST and LED can be combined (assigned the same number)
' * CLK and TCLK can be combined
' * SDA and TDIN can be combined
' * SDO and TDO can be combined
{{
' LCD Connector J1: 1.44in 128x128 ILI9163 LCD pinout for use with RetroBlade3. Adjust to suit your P2 board.
PIN_3V3 = 7 {O} ' 3v3 pwr supplied by prop pin
PIN_GND = 6 {O} ' GND pwr supplied by prop pin
PIN_CE = 5 {O} ' Serial clock enable pin
PIN_RST = 4 {O} ' Reset pin
PIN_DC = 3 {O} ' Data / Command selection pin
PIN_SDA = 2 {O} ' Serial Data pin
PIN_CLK = 1 {O} ' Serial Clock pin
PIN_LED = 0 {O} ' LED backlight enable pin
PIN_TCLK = -1 ' disable touch
' LCD Connector J2: 4.0in/3.2in ST7796S/ILI9341 pinout for use with RetroBlade3. Adjust to suit your P2 board.
PIN_3V3 = -1 ' 3v3 ~59mA or 5V ~113mA power supplied by power supply
PIN_GND = -1 ' GND pwr supplied by power supply
PIN_CE = 47 {O} ' Serial clock enable pin
PIN_RST = 46 {O} ' Reset pin (can be reset by software)
PIN_DC = 45 {O} ' Data / Command selection pin
PIN_SDA = 44 {O} ' Serial Data MOSI pin
PIN_CLK = 43 {O} ' Serial Clock pin
PIN_LED = 42 {O} ' LED backlight enable pin (hi to enable - ~2.4mA)
PIN_SDO = 41 {I} ' Serial Data MISO pin (not used)
PIN_TCLK = 40 {O} '\ Touch: Serial Clock pin
PIN_TCS = 39 {O} '| Serial clock enable pin
PIN_TDIN = 38 {O} '| Serial Data In MOSI pin
PIN_TDO = 37 {I} '| Serial Data Out MISO pin
PIN_TIRQ = 36 {I} '/ Serial Interrupt out pin
}}
' These are the values for the 4.0in 320x480 ST7796S LCD & 3.2in 240x320 ILI9341 LCD.
' Easiest to select by trial and error. Other LCD's may vary.
LCD_rotate_0 = $00 '\ 0 degrees
LCD_rotate_90 = $A0 '| 90 degrees
LCD_rotate_180 = $C0 '| 180 degrees
LCD_rotate_270 = $60 '/ 270 degrees
LCD_mirror_0 = $40 '\ 0 degrees mirror
LCD_mirror_90 = $20 '| 90 degrees mirror (eg 4.0" is rotated 90deg and mirrored)
LCD_mirror_180 = $80 '| 180 degrees mirror
LCD_mirror_270 = $E0 '/ 270 degrees mirror
' Most driver ICs seem to use these registers...
' ST7769S, IL9341, ILI9341, ILI9488, ILI9163,
LCD_NOP = $00
LCD_SW_RESET = $01
LCD_SLEEP_ON = $10
LCD_SLEEP_OFF = $11
LCD_PARTIAL = $12
LCD_NORMAL = $13
LCD_INVERSION_OFF = $20
LCD_INVERSION_ON = $21
LCD_GAMMA_SET = $26
LCD_DISPLAY_OFF = $28
LCD_DISPLAY_ON = $29
LCD_COL_ADR = $2A
LCD_ROW_ADR = $2B
LCD_RAM_WRITE = $2C
LCD_COLOR_SPACE = $2D '4K/65K/262K
' LCD_RAMRD = $2E
LCD_MADCTR = $36 'Mem Addr Contol (rotate screen)
LCD_PIXEL_FORMAT = $3A
LCD_FRAME_CTL1 = $B1
LCD_INVERSION_CTL = $B4
LCD_POWER_CTL1 = $C0
LCD_POWER_CTL2 = $C1
LCD_VCOM_CTL1 = $C5
LCD_VCOM_OFFSET = $C7
LCD_POS_GAMMA = $E0
LCD_NEG_GAMMA = $E1
LCD_GAMMA_RS = $F2
' LCD_ALL_ON = $A4
' LCD_ALL_OFF = $A5
' BGR 5+6+5 16bits/pixel (RGB reversed)
black = $0000
white = $FFFF
blue = $F800
green = $07E0
red = $001F
yellow = red+green
purple = red+blue
cyan = green+blue
grey = $7BEF
orange = 0<<11 + 31<<5 + 31
brown = 0<<11 + 20<<5 + 20
brightRed = 10<<11 + 20<<5 + 31
brightGreen = 10<<11 + 63<<5 + 10
brightBlue = 31<<11 + 20<<5 + 10
grey1 = 8<<11 + 63<<5 + 8
grey2 = 16<<11 + 63<<5 + 16
grey3 = 24<<11 + 48<<5 + 24
LF = 10
CR = 13
max_buttons = 10
OBJ
' term : "jm_fullduplexserial" ' serial driver
'<--------------------------->
'<----- Added for P2GUI ----->
'<--------------------------->
'font16 : "LCD_VarSizeFont"
'font8 : "LCD_FixedFont"
fonts : "fonts"
'<--------------------------->
VAR
long lcdcog ' lcd pasm cog+1
long sercog ' serial pasm cog+1
long width, height ' lcd screen width/height (pixels)
long touchscreen ' true = touch screen enable
long fontwidth, fontheight ' font size 6x8 or 8x8 (pixels)
long textcols, textrows ' chars on line, and lines on screen
long curx, cury ' cursor position
long cal_edge ' touch screen calibration from edge of screen (pixels)
long cal_topx, cal_topy ' touch screen calibration "x" top column, "y" top row
long cal_botx, cal_boty ' "x" bottom column, "y" bottom row
' touch screen calibration data
long cal_offx, cal_offy ' touch screen ADC value offset x/y
long cal_divx, cal_divy ' scaling factor ADC value to pixels = width/divx and height/divy
byte calibrated
'' +--------------------------------------------------------------------------+
word but_xs[max_buttons] ' buttons left window limit
word but_xe[max_buttons] ' buttons right window limit
word but_ys[max_buttons] ' buttons top window limit
word but_ye[max_buttons] ' buttons bottom window limit
long num_buttons
'<--------------------------->
'<----- Added for P2GUI ----->
'<--------------------------->
long rotation
long last_x
long last_y
long last_time
'<--------------------------->
DAT
''+-----------------------------------------------------+
''| MAILBOX PARAMETERS: Between Spin/Pasm |
''+-----------------------------------------------------+
' mailbox(es) for PASM cog
mailbox long 0 ' \ .... (32b) command + optional param(s)
'cmd byte 0 ' | cmd (8b) command
'spare byte 0 ' | spare (8b) ---
'param word 0 ' / param (16b/8b) 16/8/0b param
mailbox1 long 0 ' \ .... (32b) optional additional param(s)
' long 0 ' / ?? (32b) 32/16/8/0b param(s)
mailbox2s long $0000_0000 ' \ (32b) screen window in pixels...
'cs word 0 ' | xs (16b) column start
'rs word 0 ' | ys (16b) row start
mailbox2e long $0000_0000 ' \ (32b) screen window in pixels...
'ce word width-1 ' | xe (16b) column end
're word height-1 ' / ye (16b) row end
mailbox3 long blue << 16 | black ' \ (32b) screen colors rgb(16b)...
'fgcolor word blue ' | fgcolor(16b) foreground color
'bgcolor word black ' / bgcolor(16b) background color
mailbox4 long 0 ' ] pixelcnt(32b) pixel count (for window fills)
mailbox5 long 0 ' ] touchscreen LSW=x MSW=y
''+-----------------------------------------------------+
''| SPIN OBJECT USER INTERFACE ROUTINES |
''+-----------------------------------------------------+
PUB Start(pixels_x, pixels_y, rotate, touch_on) : result
' Start LCD cog and initialise
' It is assumed that the pin numbers are already set.
' If you need a diffenrent pinout call SetLcdPins() and SetTouchPins() before.
width := pixels_x ' lcd screen width (pixels)
height := pixels_y ' height (pixels)
touchscreen := touch_on ' true = touch screen enabled
cal_edge := width / 16 ' touch screen calibration from edge of screen (pixels)
cal_topx := cal_edge ' touch screen calibration "x" top column
cal_topy := cal_edge ' row
cal_botx := width - cal_edge ' bottom column
cal_boty := height - cal_edge ' row
divCLK := clkfreq / 20_000_000 ' adjust smart pin base period to actual frequency
debug(sdec(PIN_CLK-PIN_SDA))
debug(sdec(PIN_TCLK-PIN_TDIN))
debug(sdec(PIN_TCLK-PIN_TDO))
PatchMode(@modeLTXD, PIN_CLK - PIN_SDA)
PatchMode(@modeTTXD, PIN_TCLK - PIN_TDIN)
PatchMode(@modeTRXD, PIN_TCLK - PIN_TDO)
delay50ms := clkfreq / 1000 * 50 ' adjust delay to actual frequency
if touch_on
Start_TS ()
else
PIN_TCLK := -1 ' disable flag -> PASM
{{
' for debugging...
waitms(3000)
sercog := term.tstart(baud)
term.fstr0(string("\r\nLCD text and graphics demo\r\n"))
}}
'<--------------------------->
'<----- Added for P2GUI ----->
'<--------------------------->
rotation := rotate
'font16.MakeFont(@font12x16,12,16)
'<--------------------------->
' Start the PASM (LCD Driver) cog & Initialised the LCD
lcdInit(rotate)
clearScreen()
return(lcdcog) ' returns cog+1 if successful
'<--------------------------->
'<----- Added for P2GUI ----->
'<--------------------------->
PUB SelectFontSize(size)
if size == 1
'SetFont(font8.Get8x8font(),8,8)
SetFont(fonts.getFont(1),8,8)
if size == 2
'SetFont(font16.Get16x16font(),16,16)
'SetFont(@font12x16,12,16)
SetFont(fonts.getFont(2),8,16)
PUB set_calibration(divx, divy, offx, offy)
cal_divx := divx
cal_divy := divy
cal_offx := offx
cal_offy := offy
calibrated := true
'<--------------------------->
PUB SetFont (dataPtr, font_x, font_y)
fontwidth := font_x ' font width (pixels)
fontheight := font_y ' (pixels)
textcols := width / fontwidth ' char columns on line
textrows := height / fontheight ' char rows on screen
WaitMailbox()
mailbox1 := dataPtr ' pixel data pointer
mailbox2s:= (font_x<<16) | font_y
mailbox4 := (font_x*font_y+7)/8 ' byte offset char to char
mailbox := $83_00_0000
PRI PatchMode(modePtr, dist)
' patch smart pin mode for B-A distance
'debug(sdec(dist))
if dist > 3 OR dist < -3
'debug ("pin mapping violates rules!")
repeat
long[modePtr]|= (dist & %111)<<24 ' P_MINUS3_B..P_PLUS3_B
PRI Start_TS()
' Start touchscreen -> most actions moved to PASM cog
if touchscreen
WrPin(PIN_TIRQ, P_FILT2_AB) ' hardware debounce ~16ms
calibrated:= false
PUB Stop()
' Stop the PASM (LCD Driver) cog
if lcdcog
cogstop(lcdcog~ - 1)
if sercog
cogstop(sercog~ - 1)
PUB SetLcdPins(ce, rst, dc, sda, clk, led, v3, gnd)
' needs to be called before Start()
PIN_3V3:= v3
PIN_GND:= gnd
PIN_CE := ce
PIN_RST:= rst
PIN_DC := dc
PIN_SDA:= sda
PIN_CLK:= clk
PIN_LED:= led
PUB SetTouchPins(clk, cs, din, do, irq)
' needs to be called before Start()
PIN_TCLK:= clk
PIN_TCS := cs
PIN_TDIN:= din
PIN_TDO := do
PIN_TIRQ:= irq
PRI WaitMailbox()
repeat while mailbox <> 0
''+-----------------------------------------------------+
''| User High Level Calls |
''+-----------------------------------------------------+
PUB clearScreen()
' Clear Screen
setWindow(0,0,width-1,height-1) ' full screen 480*320/320x240/128x128
fillWindow(mailbox3 & $FFFF) ' clear=bgcolor
PUB setFGcolor(rgb)
' Set foreground color
WaitMailbox()
mailbox3 := (rgb << 16) | (mailbox3 & $FFFF)
PUB setBGcolor(rgb)
' Set background color
WaitMailbox()
mailbox3 := (mailbox3 & $FFFF_0000) | (rgb & $FFFF)
PUB setWindow(xs, ys, xe, ye)
' Set Screen Window (column start, row start, column end, row end)
curx:= xs
cury:= ys
WaitMailbox()
mailbox2s:= (xs<<16) | ys ' xs, ys
mailbox2e:= (xe<<16) | ye ' xe, ye
mailbox4 := (xe - xs +1)*(ye - ys +1) ' calc no. of pixels
mailbox := $81_00_0000
PUB fillWindow(rgb) | n, xs, ys, xe, ye
' Fill Window/Rectangle (rgb color)
WaitMailbox()
mailbox1 := (rgb << 16) ' rgb color to be set in window
mailbox := $82_00_0000
PUB setColRow(xs, ys)
' Set Screen Column/Row (for subsequent DrawChar6/8x8)
WaitMailbox()
curx:= xs
cury:= ys
mailbox2s := (xs<<16) | ys ' update new (xs, ys, ?, ?) - no need to setWindow!
PUB drawChar(char) | xs, ys
' Draw (current font) char @ (xs,ys), then updates (xs,ys,xe,ye) - uses fgcolor & bgcolor setting
'get current xs, ys and set xe, ye
setWindow(curx, cury, curx+fontwidth-1, cury+fontheight-1)
WaitMailbox()
mailbox := $84_00_0000 | (char & $7F) ' paints pixels
advanceCursor(fontwidth)
PUB drawStr(str)
repeat while byte[str] <> 0
drawChar(byte[str++])
PUB drawString(col,row,str)
' Draw a 0 terminated string at col,row
setColRow(col, row)
drawStr(str)
PUB DrawIcon (imagePtr, w, h)
setWindow(curx, cury, curx+w-1, cury+h-1)
WaitMailbox()
mailbox1 := imagePtr
mailbox := $85_00_0000
advanceCursor(w)
''+-----------------------------------------------------+
'' Added by Jose Rullan
'' mailbox (data): $88 -> sendImage command
'' mailbox1 (data1): imagePtr
''+-----------------------------------------------------+
PUB sendImage(imagePtr,x,y,w,h)
setWindow(x, y, x+w-1, y+h-1)
WaitMailbox()
mailbox1 := imagePtr
mailbox := $88_00_0000
''+-----------------------------------------------------+
''| High Level Drivers |
''+-----------------------------------------------------+
PUB drawPixel(x, y, rgb) | i
' Draw 1 pixel
setWindow(x, y, x, y) ' 1 pixel
fillWindow(rgb)
PUB drawFastHLine(x,y,l,rgb)
setWindow(x,y,x+l,y)
fillWindow(rgb)
PUB drawFastVLine(x,y,l,rgb)
setWindow(x,y,x,y+l)
fillWindow(rgb)
PUB drawLine(xs, ys, xe, ye, rgb) | i, x, y, dx, dy
' Draw Line - start co-ords, end co-ords, color
dx:= xe - xs
dy:= ye - ys
if dx == 0
if ys < ye
drawFastVLine(xs,ys,dy,rgb)
else
drawFastVLine(xs,ye,ABS(dy),rgb)
elseif dy == 0
if xs < xe
drawFastHLine(xs,ys,dx,rgb)
else
drawFastHLine(xe,ys,ABS(dx),rgb)
else
if ABS(dx) > ABS(dy) 'plot incrementing x axis
repeat i from 0 to dx
y := (dy*i + dx/2)/dx
drawPixel(xs+i, ys+y, rgb)
else 'plot incrementing y axis
repeat i from 0 to dy
x := (dx*i + dy/2)/dy
drawPixel(xs+x, ys+i, rgb)
PUB drawCircle(xc, yc, r, rgb) | x, y
' Draw Circle d^2 = x^2 + y^2; y = SQRT(d^2 - x^2) (Pythagoras theorum)
repeat x from 0 to r
y := SQRT((r*r + r/2) - (x*x))
if y < x
quit ' octant finished
'plot 4 quadrants for incrementing x axis
drawPixel(xc+x, yc+y, rgb)
drawPixel(xc-x, yc+y, rgb)
drawPixel(xc+x, yc-y, rgb)
drawPixel(xc-x, yc-y, rgb)
'plot 4 quadrants for incrementing y axis (fills in more dots on circle)
drawPixel(xc+y, yc+x, rgb)
drawPixel(xc-y, yc+x, rgb)
drawPixel(xc+y, yc-x, rgb)
drawPixel(xc-y, yc-x, rgb)
PUB fillCircle(xc, yc, r, rgb)|x,y,xr,yr,d
'The most efficient algorithm for creating a filled circle is
'the Midpoint Circle Algorithm, also known as Bresenham's Circle Algorithm.
x := 0
y := r
d := 1 - r
repeat while x <= y
drawFastHLine(xc-x, yc+y, 2*x, rgb) 'last
drawFastHLine(xc-x, yc-y, 2*x, rgb) 'top
drawFastHLine(xc-y, yc+x, 2*y, rgb) 'third
drawFastHLine(xc-y, yc-x, 2*y, rgb) 'second
x++
if d < 0
d := d + 2*x + 3
else
y--
d := d + 2*(x - y) + 5
PUB fillRectangle(xs, ys, xe, ye, rgb)
setWindow(xs, ys, xe, ye)
fillWindow(rgb)
PUB drawRectangle(xs, ys, xe, ye, rgb) | i
'plot two horizontal lines
repeat i from 0 to xe-xs
drawPixel(xs+i, ys, rgb)
drawPixel(xs+i, ye, rgb)
'plot incrementing y axis
repeat i from 0 to ye-ys
drawPixel(xs, ys+i, rgb)
drawPixel(xe, ys+i, rgb)
PUB CopyBitmap4bpp (bmapPtr, palettePtr, x, y, w, h) | oldCol
' bmapPtr = pointer to bitmap data, 1 nibble per pixel
' palettePtr = pointer to palette, 16 words of 5:6:5 RGB color data
setWindow (x, y, x+w-1, y+h-1)
oldCol:= mailbox3
WaitMailbox()
mailbox1:= bmapPtr
mailbox3:= palettePtr
mailbox := $86_00_0000
WaitMailbox()
mailbox3:= oldCol
PUB ShrinkBitmap4bpp (bmapPtr, palettePtr, x, y, w, h) | oldCol
' bmapPtr = pointer to bitmap data, 1 nibble per pixel
' palettePtr = pointer to palette, 16 words of 5:6:5 RGB color data
' blends 4 adjacent pixels of source bitmap into 1 display pixel
setWindow (x, y, x+w-1, y+h-1)
oldCol:= mailbox3
WaitMailbox()
mailbox1:= bmapPtr
mailbox2e:= w ' dst pixels per row = src bytes per row
mailbox3:= palettePtr
mailbox := $87_00_0000
WaitMailbox()
mailbox3:= oldCol
PRI advanceCursor(dx)
'update xs, ys, xe, ye to next position
WaitMailbox()
curx += dx
if curx >= width ' char pixels per line 120/126 (20/21 chars)
curx:= 0
cury += fontheight
if cury >= height ' (height // 8) * 8 not reqd
cury:= 0
mailbox2s := curx << 16 | cury ' update new (xs, ys, xe, ye) - no need to setWindow!
''+-----------------------------------------------------+
''| Touch Screen Calls |
''+-----------------------------------------------------+
PUB addButton (x, y, w, h) : n
' takes top left X/Y coordinates and width/height
' returns number of button (n>0 if successful)
if num_buttons>= max_buttons
return 0
but_xs[num_buttons]:= x
but_xe[num_buttons]:= x + w
but_ys[num_buttons]:= y
but_ye[num_buttons]:= y + h
num_buttons++
PUB clearButtons ()
' deletes the list of all buttons
num_buttons:= 0
PUB buttonIsHit (x, y): n
' returns number of button hit or 0 if none
repeat n from 0 to num_buttons-1
if x >= but_xs[n] AND x < but_xe[n] AND y >= but_ys[n] AND y < but_ye[n]
return n+1
return 0
PUB waitForButton (): n
' wait uintil a button is hit and returns its number
repeat
Wait_for_touch ()
Wait_for_untouch ()
n:= buttonIsHit (Get_TS_XY ())
until n > 0
PUB calibrateTouch() | xstr, ystr, tx,ty,tx_topx,ty_topy,tx_botx,ty_boty,spotx,spoty,int
xstr := width/2-9*8 ' approx center of screen for text (18 chars 8x8 font)
ystr := height/2-4
setBGcolor(black)
setFGcolor(white)
SelectFontSize(1)
clearScreen()
clearButtons()
drawString(xstr, ystr, string("CALIBRATE TOP LEFT"))
setColRow(cal_topx, cal_topy)
drawChar("x") ' draw top left calibration X
int := 1
Wait_for_touch() ' wait for touch
tx_topx,ty_topy:= Get_TS_XY_raw() ' calibration point top left
' term.fstr3(string("X %d Y %d int %d %s\r\n"),tx_topx,ty_topy,int)
clearScreen()
drawString(xstr, ystr, string("CALIBRATE BOTTOM RIGHT"))
setColRow(cal_botx, cal_boty)
drawChar("x") ' draw bottom right calibration X
Wait_for_untouch() ' wait until not touched
Wait_for_touch() ' wait until touched
tx_botx,ty_boty:= Get_TS_XY_raw() ' calibration point bottom right
' term.fstr3(string("X %d Y %d int %d %s\r\n"),tx_botx,ty_boty,spotx)
cal_divx:= (tx_botx - tx_topx) * width / (cal_botx - cal_topx)
cal_divy:= (ty_boty - ty_topy) * height / (cal_boty - cal_topy)
cal_offx:= tx_topx - cal_topx * cal_divx / width
cal_offy:= ty_topy - cal_topy * cal_divy / height
debug("Touchscreen Calibration data: ")
debug(sdec(cal_divx), sdec(cal_divy), sdec(cal_offx), sdec(cal_offy))
calibrated:= true
clearScreen()
Wait_for_untouch()
drawString(xstr, ystr, string("TOUCH DISPLAY TO MAKE X"))
spotx:= cal_botx-(cal_edge/2)
spoty:= cal_edge/2
setWindow(spotx, spoty, spotx+cal_edge, spoty+cal_edge)
fillWindow(white)
addButton (spotx, spoty, cal_edge, cal_edge)
setBGcolor(white)
setFGcolor(black)
drawString(spotx, cal_edge, string("DONE"))
setFGcolor(green)
setBGcolor(black)
repeat
Wait_for_untouch() ' wait until not touched
Wait_for_touch() ' wait until touched
spotx,spoty:= Get_TS_XY()
if buttonIsHit (spotx, spoty)
quit ' cal_done
setColRow(spotx,spoty)
drawChar("x")
clearButtons()
clearScreen()
' term.fstr3(string("X %d Y %d int %d %s\r\n"),spotx,spoty,spotx)
'----------------------------------------------------------
PUB Get_TS_XY (): cx, cy | rx, ry ' return touchscreen X and Y at once (calibrated)
rx,ry:= Get_TS_XY_raw()
'<--------------------------->
'<--- Modified for P2GUI ---->
'<--------------------------->
'For Lolin TFT-2.4 (XPT2046)
'debug(udec(rx), udec(ry), udec(calibrated), udec(rotation))
if calibrated AND rotation == LCD_mirror_0
cx := (ry - cal_offy) * width / cal_divy
cy := (rx - cal_offx) * height / cal_divx
if calibrated AND rotation == LCD_mirror_90 ' otherwise return 0,0
cx:= (rx - cal_offx) * width / cal_divx ' offset and scaling adjustment
cy:= (ry - cal_offy) * height / cal_divy
'<--------------------------->
PUB Get_TS_CalibData (): ptr
' returns pointer to 4 longs calibration data
' treat them as "black box" (read only)
return @cal_offx
PUB Put_TS_CalibData (ptr)
' copies calibration data from user space to internal variables
if long[ptr]<>0 AND long[ptr]<>-1 ' sanity check
longmove (@cal_offx, ptr, 4)
calibrated:= true
PRI Get_TS_XY_raw (): x, y ' return touchscreen X and Y at once (uncalibrated)
{
x:= get_ts($91) ' $91 turns off interupt and collects x position
x:= get_ts($91) ' $91 keeps off interupt after x data, calibration point tx_topx
y:= get_ts($D1) ' $D1 keeps off interupt and collects y position
y:= get_ts($D0) ' $D0 turns interupt back on after calibration point ty_topy
}
WaitMailbox() ' wait for PASM cog ready
mailbox := $41_00_0000 ' start ADC poll
WaitMailbox() ' wait for result
x:= mailbox5 & $FFFF
y:= mailbox5 >> 16
'debug (uhex(x), uhex(y))
'----------------------------------------------------------
PUB Wait_for_touch()
repeat while NOT Touched()
PUB Wait_for_untouch()
repeat while Touched()
PUB Touched(): touch | old
touch:= NOT pinr(PIN_TIRQ) ' debouncing is done in hardware (smart pin digital filters)
'-----------------------------------------------------------
'<--------------------------->
'<----- Added for P2GUI ----->
'<--------------------------->
CON
DEBOUNCE_TIMER = 50
PUB detects_valid_touch(): valid_touch_detected | pos_x, pos_y
valid_touch_detected := false
if Touched() AND (getms()-last_time >= DEBOUNCE_TIMER)
pos_x, pos_y := Get_TS_XY()
if (pos_x > 0 AND pos_x <= cal_offx) AND (pos_y > 0 AND pos_y <= cal_offy)
valid_touch_detected := true
last_x := pos_x
last_y := pos_y
last_time := getms()
PUB get_last_valid_touch():x,y
x := last_x
y := last_y
'<--------------------------->
''+-----------------------------------------------------+
''| User Low Level Calls (directly manipulate the LCD) |
''+-----------------------------------------------------+
PUB lcdWriteData16(val)
' Write 16b data word to LCD
lcdWriteData(val >> 8)
lcdWriteData(val & $FF)
PUB lcdWriteData(val)
' Write 8b data byte to LCD
WaitMailbox()
mailbox := $100 | val ' dc=data=1
PUB lcdWriteCmd(val)
' Write 8b commandbyte to LCD
WaitMailbox()
mailbox := val ' dc=cmd=0
''+-----------------------------------------------------+
''| Initialise LCD (eg 4.0" TFT SPI 480*320 V1.0) |
''+-----------------------------------------------------+
PRI lcdInit(rotate) ' screen rotation
' Start pasm cog and wait till running
lcdcog := coginit(16, @entry, @mailbox) +1 ' start LCD Driver Cog
waitms(100) ' 100ms
' Reset the LCD (either HW or SW - both work)
mailbox := $FF_00_0000 '\ HW reset LCD
' lcdWriteCmd(LCD_SW_RESET) '] SW Reset
waitms(500) ' 500ms
' Sleep mode off
lcdWriteCmd(LCD_SLEEP_OFF)
waitms(5) ' 5ms
' Pixel Format 16bits/pixel
lcdWriteCmd(LCD_PIXEL_FORMAT)
lcdWriteData($05) ' 16b/pixel
' set display rotation
lcdWriteCmd(LCD_MADCTR) ' mem addr ctrl
lcdWriteData(rotate) ' rotation 0/90/180/270deg=$00/$A0/$C0/$60
' Display On
lcdWriteCmd(LCD_DISPLAY_ON)
waitms(1) ' 1ms
DAT
''+-----------------------------------------------------+
''| PASM LCD Low Level Drivers (separate cog) |
''+-----------------------------------------------------+
org 0
entry ' PTRA contains the pointer to the hub mailbox
cmp PIN_3V3, #64 wc '\ -1 for non-1.44in LCD
if_c cmp PIN_GND, #64 wc '| -1 for non-1.44in LCD
if_c drvh PIN_3V3 '| power & gnd for 1.44in LCD only !!!
if_c drvl PIN_GND '/
drvh PIN_CE '\ set levels and enable outputs...
drvh PIN_RST '|
drvl PIN_DC '|
fltl PIN_SDA '|
drvh PIN_CLK '|
drvh PIN_LED '/
wrpin modeLCLK,PIN_CLK ' smart pin transition mode
wrpin modeLTXD,PIN_SDA ' smart pin synchronous serial transmit
wxpin divCLK,PIN_CLK ' clock transition every 50ns
wypin #2,PIN_CLK ' dummy pulse to force IN=1 (ready flag)
mov divTCLK,divCLK
shl divTCLK,#2
cmp PIN_TCLK,#64 wc ' initialize touch panel if present
if_c drvh PIN_TCS
waitx delay50ms
waitx delay50ms
done wrlong #0, PTRA ' clear hub mailbox
wait rdlong data, PTRA wz ' wait for something to do
if_z jmp #wait
'| mailbox | mailbox1 | mailbox2s | mailbox2e | mailbox3 | mailbox4
setq #6-1 '\ get.. data, data1, coordss, coordse, colors, pixelno
rdlong data, PTRA '/ cmd+prms params(1) xs,ys xe,ye fg,bg pixels
mov command, data '\ extract command
shr command, #24 '|
cmp command, #$00 wz '| $00= write cmd/data from spin
if_e jmp #writex '|
cmp command, #$FF wz '| $FF= HW Reset
if_e jmp #reset '|
cmp command, #$81 wz '| $81= Set window xs,ys,xe,ye
if_e jmp #window '|
cmp command, #$82 wz '| $82= Fill window rgb
if_e jmp #fill '|
cmp command, #$83 wz '| $83= set font
if_e jmp #set_font '|
cmp command, #$84 wz '| $84= paint char (variable font size)
if_e jmp #paintchar '|
cmp command, #$85 wz '| $85= paint 16x16 symbol
if_e jmp #paint16Icon '|
cmp command, #$86 wz '| $86= copy bitmap
if_e jmp #copyBitmap '|
cmp command, #$87 wz '| $87= shrink bitmap
if_e jmp #shrinkBitmap '|
cmp command, #$88 wz '| $88= paintImage
if_e jmp #send_image_data '|
cmp command, #$41 wz '| $41= get touchscreen x,y
if_e jmp #pollTouchXY '|
jmp #done '/ unknown command, ignore
''+-----------------------------------------------------+
''| LCD SetWindow(xs,ys,xe,ye) |
''+-----------------------------------------------------+
window mov data, #LCD_COL_ADR
call #writecmd
mov data, coordss '\ xs
shr data, #16 '/
call #write16data
mov data, coordse '\ xe
shr data, #16 '/
call #write16data
mov data, #LCD_ROW_ADR
call #writecmd
mov data, coordss '\ ys
zerox data,#15 '/
call #write16data
mov data, coordse '\ ye
zerox data,#15 '/
call #write16data
jmp #done
''+-----------------------------------------------------+
''| LCD FillWindow(rgb,pixels) |
''+-----------------------------------------------------+
fill mov data, #LCD_RAM_WRITE
call #writecmd ' Write command to ILI9341: LCD_RAM_WRITE
mov ctr, pixelno ' pixels (32b) (quantity of pixels)
shr data1, #16 ' rgb(16b)
.fill_loop mov data, data1 ' rgb (color of the pixels) - Shift right data1
call #write16data ' Write color to ILI9341
djnz ctr, #.fill_loop ' Decrease ctr (quantity of pixels) and loop if not zero
jmp #done
''+-----------------------------------------------------+
''| LCD SetFont() mailbox2=width/height |
''+-----------------------------------------------------+
set_font
mov fontPtr,data1
getword fontw,coordss,#1
getword fonth,coordss,#0
mov fontb,pixelno ' byte count per char
jmp #done
''+-----------------------------------------------------+
''| LCD PaintChar() mailbox3=fgcolor/bgcolor |
''+-----------------------------------------------------+
paintchar
getword fg,colors,#1 ' get fgcolor/bgcolor
getword bg,colors,#0
and data, #$7F ' char =<$7F
cmp data, #$20 wc ' ctrl char?
if_c mov data, #$7F ' y: substitute char($7F) as no font for ctrl chars
cmpsub data, #$20 ' adjust font start at $20 as no font for ctrol chars
'determine font offset (=data): 6*8: multiply by 6; 8*8 multiply by 8; then add font address in cog
mov pixelctr1,fontw
mul pixelctr1,fonth ' no. of pixels = width*height
mul data,fontb
add data,fontPtr ' ptr = char * modulus
rdfast #0,data ' setup FIFO
mov data, #LCD_RAM_WRITE
call #writecmd
call #paintpixels
jmp #done
''+-----------------------------------------------------+
paintpixels
mov pixelctr2,pixelctr1 ' ctr1 = total pixels left
fle pixelctr2,#8 ' ctr2 = 1..8 pixels
rfbyte pixels ' fetch next word
shl pixels,#24
nextpixel rol pixels, #1 wc
if_c mov data, fg ' "1" = fgcolor
if_nc mov data, bg ' "0" = bgcolor
call #write16data ' write fgcolor/bgcolor(16b) pixel(1)
djnz pixelctr2, #nextpixel
sub pixelctr1,#8 wcz
if_a jmp #paintpixels ' repeat if >0 left
ret
''+------------------------------------------------------------------+
''| LCD PaintIcon <=64x64 mailbox3=fgcolor/bgcolor mailbox1=pointer |
''+------------------------------------------------------------------+
paintIcon
mov fg, colors ' get fgcolor/bgcolor
mov bg, fg
shr fg, #16 ' extract fgcolor
zerox bg,#15 ' extract bgcolor
mov data,coordse
sub data,coordss
add data,##$10001 ' window = (ye-ys+1) * (xe-xs+1)
getword bits,data,#1
getword rowctr,data,#0
rdfast #0,data1 ' setup FIFO
mov data, #LCD_RAM_WRITE
call #writecmd
.nextRow mov pixelctr1,bits ' bits = pixels per row
call #paintpixels
djnz rowctr,#.nextRow
jmp #done
''+------------------------------------------------------------------+
''| LCD PaintIcon <=64x64 mailbox3=fgcolor/bgcolor mailbox1=pointer |
''+------------------------------------------------------------------+
paint16Icon
mov fg, colors ' get fgcolor/bgcolor
mov bg, fg
shr fg, #16 ' extract fgcolor
zerox bg,#15 ' extract bgcolor
mov data,coordse
sub data,coordss
add data,##$10001 ' window = (ye-ys+1) * (xe-xs+1)
getword bits,data,#1
getword rowctr,data,#0
rdfast #0,data1 ' setup FIFO
mov data, #LCD_RAM_WRITE
call #writecmd
.next16Row mov pixelctr1,bits ' bits = pixels per row
call #paint16iconpixels