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Forum Index : Microcontroller and PC projects : MM2: Update graphics routines
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| matherp Guru  Joined: 11/12/2012 Location: United KingdomPosts: 8583 |
I've been previously requested (several times!!!) to create a thread in which the most up-to-date versions of my various graphics routines are posted - so here it is. 
I had previously held off on doing this as I knew Geoff was going to include support for the SPI-connected ST7735, ILI9341 and ILI9163 displays in the MM2 firmware V4.7 and also that that would effectively standardise the various calls: BOX, CIRCLE etc. as well as the format for colour codes (RGB888) However, the MM2 firmware for the MX170 doesn't and won't support the various parallel connect displays such as the SSD1963 (4.3", 5", and 7") and SSD1289 (3.2"). These not only have greater screen space and resolution than the SPI connected displays but update considerably faster. I have tried to make the drawing routines in my programs as similar as possible to the in-built routines and will maintain this calling sequence for all routines going forward. So for example Geoff uses: BOX X, Y, W, H, [LW], [EDGECOLOUR], [FILLCOLOUR] My routine for the SSD1963 now is: S1963.BOX(X, Y, W, H, EDGECOLOUR, [FILLCOLOUR]) Note, that as a true subroutine, the parameters must be enclosed in brackets. There is no mechanism of supporting optional parameters in the middle of the list so only trailing parameters may be optional. I have not implemented line width in any of the calls as this just adds unnecessary complexity, particularly as the LW parameter always appears in the middle of the parameter list and is always optional. However, is easy to mimic the effect yourself. My routines support rotation at any time allowing you to write text in any orientation although you will have to do the coordinate calculations yourself as the 0,0 position moves with the orientation. In addition my routines include a TRIANGLE command and also for the SSD1963, when wired in a specific way, they support scrolling of any sub-region of the screen. I'd like to thank Peter Carnegie (G8JCF) for helping me to convert my "hacker" coding style into something more professional, something I'll try and maintain going forward. The full function list including support for touch input is given below; all future routines will maintain this structure and calling sequence: Define pin usage for the display: Sub S1963.PinDefs(D0,D1,D2,D3,D4,D5,D6,D7,D8,D9,RS,RD,WR,RST) Call S1963.PinDefs BEFORE calling anything else in S1963 D0-D9 Pins used for DB0-DB9 see notes below about optimisation RS Pin used for RS RD Pin used for RD WR Pin used for WR RST Pin used to generate Reset signal to display controller For optimised update and scroll functionality, otherwise any valid pin D0, Use 25 D1, Use 26 D2, Use 27 D3, Use 36 D4, Use 37 D5, Use 38 D6, Use 2 D7, Use 3 D8, Use 4 D9, Use 5 initialise display: SUB S1963.init(size) display size in inches, can be 4.3, 5, or 7 clear screen: SUB S1963.CLS(colour) clear the screen to the colour specified if the colour is omitted the screen is cleared to black set screen orientation: SUB S1963.ROTATE(orientation) valid values are PORTRAIT:0, RPORTRAIT:1, LANDSCAPE:2, RLANDSCAPE:3 plot PIXEL: SUB S1963.PIXEL(x, y, c) x, y coordinates of PIXEL, colour draw circle: SUB S1963.CIRCLE(x, y, r, c, f) x, y coordinates of centre, radius, colour of outline, colour to fill if colour to fill is omitted an outline only is drawn to fill with black use the special function S1963.BLACK() as the colour to generate a circle in a single solid colour use the same colour for the outline and the fill draw triangle: SUB S1963.TRIANGLE(x0, y0, x1, y1, x2, y2, c, f) three coordinate pairs, colour of outline, colour to fill if colour to fill is omitted an outline only is drawn to fill with black use the special function S1963.BLACK() as the colour to generate a triangle in a single solid colour use the same colour for the outline and the fill print text: SUB S1963.TEXT(x, y, text$, font, size, forecolour, backcolour) x, y coordinates of top left of first character, font number, text string, size, c, foreground colour, background colour if the background colour is omitted black will be used print bitmap: SUB S1963.BITMAP(x, y, bitmap, width, height, scale, forecolour, backcolour) x, y coordinates of top left of the bitmap, bitmap, size, character orientation, foreground colour, background colour the bitmap must be specifed as an array of integers to output bitmap contained within a single integer use array size 1 and allocate the bimap to element 0 draw line: SUB S1963.LINE(x0, y0, x1, y1, colour) x, y of start line, x, y of end line, foreground colour, background colour draw rectangle: SUB S1963.BOX(x, y, w, h, c, f) x, y coordinate of top left, width, height, colour of outline, colour to fill if colour to fill is omitted an outline only is drawn to fill with black use the special function S1963.BLACK() as the colour to generate a rectangle in a single solid colour use the same colour for the outline and the fill draw rounded rectangle: SUB S1963.RBOX(x, y, w, h, r, c, f) x, y coordinates of top left, width, height, radius of corner, colour of outline, colour to fill if colour to fill is omitted an outline only is drawn to fill with black use the special function S1963.BLACK() as the colour to generate a rounded rectangle in a single solid colour use the same colour for the outline and the fill scroll region: SUB S1963.SCROLL(x ,y, w, h) x, y coordinate of top left, width, height of scroll area screen horizontal resolution in default orientation: S1963.MM.HRES.DEFAULT.DEFAULT screen vertical resolution in default orientation: S1963.MM.VRES.DEFAULT.DEFAULT screen horizontal resolution in current orientation: S1963.MM.HRES.DEFAULT screen vertical resolution in current orientation: S1963.MM.VRES.DEFAULT Touch input routines initialise touch: SUB XPT.init(IRQ,CSxl%, xr%, yt%, yb%, xs%, ys%, n%) calibration parameters for the touch screen, if not specified will automatically call XPT.CALIBRATE number of samples at each touch to minimise noise, defaults to 5 CS: chip select pin for XPT touch controller, any valid pin IRQ: interrupt pin for XPT touch controller, any valid pin S1963_default_rotation: default screen orientation for this display type, in the case of the S1963 this is LANDSCAPE:2 rotate screen keeping touch input correct : SUB XPT.ROTATE(N) valid values for N are PORTRAIT:0, RPORTRAIT:1, LANDSCAPE:2, RLANDSCAPE:3 note if S1963.ROTATE is used rather than XPT.ROTATE when touch is active subsequent touch coordinates will be incorrect calibrate touch: SUB XPT.CALIBRATE no parameters sets and prints the following values XPT.XSAMPLE0, XPT.YSAMPLE0, XPT.XLEFT0, XPT.XRIGHT0, XPT.YTOP0, XPT.YBOTTOM0 for any given display these will be fixed so can be set as constants for future use this allows the calibrate routine to be removed for working systems the related variables XPT.XSAMPLE, XPT.YSAMPLE, XPT.XLEFT, XPT.XRIGHT, XPT.YTOP, XPT.YBOTTOM are set for the default orientation these are changed by XPT.ROTATE from the values stored in XPT.XSAMPLE0 etc. get touch coordinates: FUNCTION XPT.SCREENPOS(x, y, t) returns true if a touch has occured within the timeout period returns false if the timeout has occured if true, x and y coordinates of position touched timeout after which a false return will occur if no touch |
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| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 8583 |
SSD1963 V3.0.1 2015-06-28_120718_ssd1963-flex-touch-scroll.zip SSD1289 V3.0 2015-06-28_143729_ssd1289-flex-touch.zip |
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kiiid Guru Joined: 11/05/2013 Location: United KingdomPosts: 671 |
Peter, sorry for asking this if it has been mentioned before. You have done huge amount of work on displays, but I can't seem to find anywhere some relatively clear document putting all of it together with some description. Is there anything like that? Thanks, Konstantin http://rittle.org -------------- |
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| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 8583 |
The documentation is in the code. There is a complete description of all of the routines and the pin connections required. There is also an example program that demonstrates all of the routines. The intention of this thread is that you always know where to go to get the latest version of the code for any given display controller. I'm afraid that is all you get. 
Here is a new display: S6D1064 176x220 TFT display V1.0 
Very cheap - e.g. this one It is based on the S6D0164 controller and it needs a full 16-bit interface so why is it interesting? Largely because it is by far the brightest and clearest TFT display I have found. For many applications you don't need the size and resolution of the bigger displays but you do need it to be visible. This one should be OK in even bright lighting conditions. It is, of course, very fast given a 16-bit interface and low resolution - a complete screen refresh takes just 22msec. Full code, with description and comprehensive example, is in the ZIP 2015-06-28_183136_s6d0164.zip |
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Zonker Guru Joined: 18/08/2012 Location: United StatesPosts: 761 |
Sweet..! I just ordered 10 of the 2.2" units... I would love to find some "daylight readable" and I hope this one counts as one of them... Thanks Peter... These units look awesome... |
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| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 8583 |
You need to set the display to either 8 or 16-bit operation. This is done with the shorting jumper J2. Open is 8=bit, closed is 16-bit. Also I make the J1 jumper to bypass the regulator as we are running 3.3V for the Micromite 
Here is a version of the code that will run in 8-bit mode. Please note that in 8-bit mode you must use connections DB8-DB15 and not the lower inputs which you may expect. With only an 8-bit databus this version will run easily on the 28-pin part with completely flexible pin allocation but it also contains optimisations that will automatically let it run faster on the 44-pin Micromite using pins 26,26,27,36,37,37,2,3 for DB8-DB15 respectively. If these pins are used the code also supports fully flexible scrolling of a sub area of the screen. Pins 4 and 5 may not be used if the 44-pin processor is wired for the optimised pinout. S6D0164 8-bit V1.1 2015-06-29_181001_s6d0164-8.zip 
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| Zonker Guru Joined: 18/08/2012 Location: United StatesPosts: 761 |
You Da MAN Peter..! Thanks for the solder blop info on these units.. I didn't see much at the website so it is a BIG help to get things wired up correctly..! I can use a LCDuMite board and try running the "big" bus... Planing on doing the same thing with the 7" unit... P.S. - Just got the breakout boards for the DS1682 "Hobbs Meter" IC (SIOC-8) and the MAX9042 dual comparator (uMax-8) to handle incoming RPM pulses from the "tickle wire" on a spark plug... Yikes...! So much fun... So little time after work... 
Anyway, a big THANK YOU Peter for your work and fine display selections..!! |
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| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 8583 |
SSD1963 V4.0 Significant performance enhancements Colour palette changed to RGB888 Bus reduced to 8-bit + 3 control pins making code easier to use on 28-pin part RS, any valid pin RD, any valid pin, set to zero if tied high, scroll functionality not available if zero WR, any valid pin DB0, Use 25 for optimised update and scroll functionality, otherwise any valid pin DB1, Use 26 for optimised update and scroll functionality, otherwise any valid pin DB2, Use 27 for optimised update and scroll functionality, otherwise any valid pin DB3, Use 36 for optimised update and scroll functionality, otherwise any valid pin DB4, Use 37 for optimised update and scroll functionality, otherwise any valid pin DB5, Use 38 for optimised update and scroll functionality, otherwise any valid pin DB6, Use 2 for optimised update and scroll functionality, otherwise any valid pin DB7, Use 3 for optimised update and scroll functionality, otherwise any valid pin RST, any valid pin NOTE: for optimised use pins 4 and 5 cannot be used 2015-06-30_144201_ssd1963-flex-touch-scroll.zip |
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| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 8583 |
S6D0164 8-bit V1.2 I really like this display, it is so much brighter than any of the others I've tried, ideal for all sorts of instrumentation. In this release I have removed the restrictions of pin usage so all functionality will now work irrespective of the pins used to connect to the processor. This means it will work as well on the 28-pin MM2 as the 44-pin. The absolute speed of update is slightly reduced but because the display is relatively low resolution the usability is not impacted. The parameters to the triangle drawing routine remain unchanged, however, I have changed the triangle drawing Cfunction to accept an array of coordinates. This allows the routine to be used for drawing the gauge with the needle updating smoothly. The gauge code is now included in the demo as well as the scrolling multi-line plot 
The code is attached: 2015-07-02_073225_s6d0164-8.zip Please note I don't intend to further develop the 16-bit parallel bus routines for this display. It works perfectly well with an 8-bit bus and the reduced pin count makes it much more usable in many applications If you really need more speed then just replace the Cfunction with the version below. Note in this case you must use a 44-pin MM2 and pins 25,26,27,36,37,38,2,3 connected to DB8-DB15. In this case pins 4 and 5 may not be used. CFunction S6D8 00000600 'writeRegister 8cc20090 8c430004 8c460008 ac660000 00043202 3c03bf88 ac666230 8c460010 8c470014 acc70000 8c46000c 8c470014 acc70000 ac646230 8c440010 8c460014 ac860000 8c44000c 8c460014 ac860000 8c440000 8c460008 ac860000 00052202 ac646230 8c440010 8c460014 ac860000 8c44000c 8c460014 ac860000 ac656230 8c430010 8c440014 ac640000 8c43000c 8c420014 ac620000 03e00008 00000000 'initdisplay 27bdffc8 afbf0034 afb70030 afb6002c afb50028 afb40024 afb30020 afb2001c afb10018 afb00014 0080a021 3c109d00 8e02003c 0040f809 24040200 0040b821 8e02003c 0040f809 24040294 ae8200a0 000217c3 ae8200a4 8e020024 8e840038 0040f809 24050006 aee20000 8e020024 8e840038 0040f809 24050005 aee20004 8e020028 0040f809 8e840038 24110001 00511004 aee20008 8e020024 8e840040 0040f809 24050006 aee2000c 8e020024 8e840040 0040f809 24050005 aee20010 8e020028 0040f809 8e840040 00511004 aee20014 8e840088 8e82008c 00821025 1040000a 02809821 8e020010 24050008 0040f809 00003021 8e02001c 8e840088 0040f809 24050006 02809821 26f10024 26f50044 02809021 3c109d00 24160001 8e020028 0040f809 8e440048 00561004 ae220000 8e020024 8e440048 0040f809 2405ffff ae220040 8e020024 8e440048 0040f809 24050007 ae220020 8e020024 8e440048 0040f809 00002821 ae220060 26310004 1635ffea 26520008 24110007 3c109d00 24120011 8e020010 8e640038 24050008 0040f809 00003021 8e02001c 8e640038 0040f809 24050005 26310001 1632fff5 26730008 3c109d00 8e02001c 8e840038 0040f809 24050006 8e02001c 8e840040 0040f809 24050006 00001021 00001821 ae820030 ae830034 02e01021 00001821 8fbf0034 8fb70030 8fb6002c 8fb50028 8fb40024 8fb30020 8fb2001c 8fb10018 8fb00014 03e00008 27bd0038 'defineregion 27bdffd0 afbf002c afb60028 afb50024 afb40020 afb3001c afb20018 afb10014 afb00010 8fb10040 2483ffff 00661821 24a6ffff 00c73021 8e280010 8e290000 8e270008 15000008 8e300090 00809821 00601021 00a0a021 00c09021 00a0b021 1000001a 0080a821 240a0001 150a000c 240a0002 00031827 00699821 00041027 00491021 00063027 00c7a021 00059027 02479021 0240b021 10000016 0040a821 550a000b 24090003 01263023 24d3ffff 00051027 00491021 0080a021 00609021 0080b021 1000000b 0040a821 24090003 15090008 00031827 00a09821 00c01021 0067a021 00049027 02479021 0240b021 00a0a821 24040036 00402821 02203021 0411FF0F 00000000 24040037 02602821 02203021 0411FF0A 00000000 24040038 02402821 02203021 0411FF05 00000000 24040039 02802821 02203021 0411FF00 00000000 24040020 02a02821 02203021 0411FEFB 00000000 24040021 02c02821 02203021 0411FEF6 00000000 8e020004 8e030008 ac430000 3c02bf88 ac406230 8e030010 8e040014 ac640000 8e03000c 8e040014 ac640000 24030022 ac436230 8e020010 8e030014 ac430000 8e02000c 8e030014 ac430000 8e020000 8e030008 ac430000 8fbf002c 8fb60028 8fb50024 8fb40020 8fb3001c 8fb20018 8fb10014 8fb00010 03e00008 27bd0030 'localfastfillrect 27bdffc0 afbf003c afbe0038 afb70034 afb60030 afb5002c afb40028 afb30024 afb20020 afb1001c afb00018 0080b821 8fa20050 8fa30054 8c740090 26920010 8e960010 2691000c 8e95000c 8e930014 7047f002 afa30010 00a02021 00c02821 00e03021 00403821 0411FF6A 00000000 7ee320c0 00171203 3042f800 00621025 0017b943 32f707e0 0057b825 00172a02 30a300ff 32e200ff 10620018 26900014 13c00030 27deffff 3c02bf88 2406ffff ac456230 8e430000 8e040000 ac640000 8e230000 8e040000 ac640000 ac576230 8e430000 8e040000 ac640000 8e230000 8e040000 ac640000 27deffff 17c6fff0 8fbf003c 1000001d 8fbe0038 3c02bf88 ac456230 8e830010 8e840014 ac640000 8e83000c 8e840014 ac640000 ac576230 8e820010 8e830014 ac430000 8e82000c 8e830014 ac430000 27deffff 13c00009 27deffff 2402ffff aed30000 aeb30000 aed30000 aeb30000 27deffff 17c2fffa 00000000 8fbf003c 8fbe0038 8fb70034 8fb60030 8fb5002c 8fb40028 8fb30024 8fb20020 8fb1001c 8fb00018 03e00008 27bd0040 'pixel 27bdffd8 afbf0024 afb10020 afb0001c 00808821 8cf00090 afa70010 00a02021 00c02821 24060001 24070001 0411FF14 00000000 7e2320c0 00111203 3042f800 00621025 00118943 323107e0 00518825 00111a02 3c02bf88 ac436230 8e030010 8e040014 ac640000 8e03000c 8e040014 ac640000 ac516230 8e020010 8e030014 ac430000 8e02000c 8e030014 ac430000 8fbf0024 8fb10020 8fb0001c 03e00008 27bd0028 'scroll 27bdffa0 afbf005c afbe0058 afb70054 afb60050 afb5004c afb40048 afb30044 afb20040 afb1003c afb00038 00809821 afa50064 afa7006c 24b7ffff 02e7b821 2482ffff 00461021 afa2002c 00008821 8fa20070 8c540090 02808021 8c5500a0 3c129d00 8e420028 8fa30070 0040f809 8c640088 24030001 00431804 afa30024 8e420024 8fa50070 8ca40088 0040f809 24050005 afa20018 8e420024 8fa30070 8c640088 0040f809 24050006 0040f021 26730001 afb30020 8fa4002c 0093102a 14400065 8fa5006c 00052840 afa5001c 26820064 afa20028 26940084 8fb60024 3c13bf81 8fa30064 0077182a afa30030 8fa40070 afa40010 8fa40020 8fa50064 24060001 8fa7006c 0411FEB4 00000000 8fa20028 00401821 8c640000 8c65ffc0 ac850000 24630004 5474fffc 8c640000 8fa30024 8fa50018 aca30000 8e63f220 8fa40024 afc40000 8e63f220 aca40000 8e63f220 afc40000 8e63f220 00001821 8fa50018 acb60000 8e64f220 afd60000 8e64f220 8e040084 8c850000 00752021 a0850000 24630001 8fa5001c 0065202a 1480fff3 02a09021 8c430000 8c44ffc0 ac640000 24420004 5682fffc 8c430000 8fa20070 afa20010 8fa30020 2464ffff 8fa50064 24060001 8fa7006c 0411FE83 00000000 8fa40030 10800018 8fa20064 3c03bf88 92440000 7c917a04 92440001 7c913804 00112202 ac646230 8e040010 8e050014 ac850000 8e04000c 8e050014 ac850000 ac716230 8e040010 8e050014 ac850000 8e04000c 8e050014 ac850000 24420001 1457ffeb 26520002 8fa50020 24a50001 afa50020 8fa3002c 0065102a 1040ffa8 8fa40070 8fbf005c 8fbe0058 8fb70054 8fb60050 8fb5004c 8fb40048 8fb30044 8fb20040 8fb1003c 8fb00038 03e00008 27bd0060 'DBitmap 27bdffa8 afbf0054 afbe0050 afb7004c afb60048 afb50044 afb40040 afb3003c afb20038 afb10034 afb00030 afa40058 00a0f021 00c09821 afa70064 8fb10068 8fa4006c 8fa30070 8fb40074 8fa20078 8c450010 2ca50002 10a00005 8c500090 8c520000 8c450008 10000004 afa5001c 8c520008 8c450000 afa5001c 7c9520c0 00042a03 30a5f800 02a5a825 00042143 308407e0 02a4a825 7c7620c0 00032203 3084f800 02c4b025 00031943 306307e0 02c3b025 afa20010 8fa40058 03c02821 72333002 8fa20064 72223802 0411FE21 00000000 8fa30064 1860006e 0015ba02 0016ca02 02207821 afbe0020 00132823 afa50028 70731002 2442ffff afa20018 afb3002c 00007021 afa00024 24180001 1000005c 3c09bf88 04400029 0052602b 51800028 24630001 04c20026 24630001 51000024 24630001 916c0000 018a6024 11800011 00000000 ad376230 8e0c0010 8e0d0014 ad8d0000 8e0c000c 8e0d0014 ad8d0000 ad356230 8e0c0010 8e0d0014 ad8d0000 8e0c000c 8e0d0014 ad8d0000 10000010 24630001 ad396230 8e0c0010 8e0d0014 ad8d0000 8e0c000c 8e0d0014 ad8d0000 ad366230 8e0c0010 8e0d0014 ad8d0000 8e0c000c 8e0d0014 ad8d0000 24630001 1471ffd4 24420001 24840001 24a5ffff 10930010 00ef3821 008e1021 24430007 284b0000 006b100b 000258c3 028b5821 000517c3 00021742 00a25021 314a0007 01425023 01585004 00e01021 1000ffc1 00001821 27de0001 17d10004 24c60001 10000009 8fa30024 0000f021 1a60fff9 8fa70058 8fa50018 00002021 8fa2001c 1000ffe5 00c2402b 24630001 afa30024 8fa50020 00af2821 afa50020 8fa20018 8fa30028 00431021 afa20018 8fa5002c 8fa20024 8fa30064 10430005 01c57021 1e20ffe9 8fa60020 1000ffef 8fa30024 8fbf0054 8fbe0050 8fb7004c 8fb60048 8fb50044 8fb40040 8fb3003c 8fb20038 8fb10034 8fb00030 03e00008 27bd0058 'swap 8c820000 8ca30000 ac830000 03e00008 aca20000 'drawline 27bdffc8 afbf0034 afb60030 afb5002c afb40028 afb30024 afb20020 afb1001c afb00018 00809821 afa5003c afa60040 afa70044 8fa20048 14c20016 8fb4004c 00e5102a 10400006 8fa2003c 27a4003c 27a50044 0411FFE5 00000000 8fa2003c 8fa70044 24e70001 24030001 afa30010 afb40014 02602021 00402821 8fa60040 00e23823 0411FDF8 00000000 10000046 8fbf0034 8fb5003c 8fa30044 16a30015 00759023 0046102a 10400006 8fa60040 27a40040 27a50048 0411FFCC 00000000 8fa60040 8fa20048 24420001 00461023 afa20010 afb40014 02602021 8fa5003c 24070001 0411FDE0 00000000 1000002e 8fbf0034 001227c3 00929026 02449023 02a3a82a 24040001 2405ffff 00b5200a 0080a821 00468823 00111fc3 00718826 00718823 00c2b02a 24030001 2404ffff 0096180a 0060b021 02328021 02602021 8fa5003c 8fa60040 02803821 0411FE2B 00000000 00101040 0051182a 54600008 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10000035 00002821 148c000d 240c000a 8ca40000 8cc50000 8ce60000 8c470000 8c620000 afa20010 afa80014 0411FDA4 00000000 00002021 10000027 00002821 548c0012 2408000b 8ca40000 8cc50000 8ce60000 8c470000 8c620000 afa20010 8d020000 afa20014 8d220000 afa20018 afaa001c afab0020 0411FBD1 00000000 00002021 10000014 00002821 5488000b 2402000c 8ca40000 8cc50000 8ce60000 8c470000 afa30010 0411FB23 00000000 00002021 10000008 00002821 14820009 8fbf002c 00a02021 0411F98A 00000000 00402021 00002821 00801021 00a01821 8fbf002c 03e00008 27bd0030 End CFunction 'MIPS32 M4K |
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| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 8583 |
SSD1963 V4.1 4.1 Automatic selection of optimisation removed to reduce CFunction size Optimisation selectable by commenting/uncommenting relevant version of CFunction all functions, including scrolling, available with any pin allocation Changed triangle drawing CFunction to accept an array of coordinates Dual Gauge added to demo code 
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| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 8583 |
SSD1351 V2.0 Converted to 4.7 compatible calling sequence and use of internal fonts 
2015-07-07_095612_ssd1351.zip Things to note: The code is only tested on a 128x96 version of the display but should also work on a 128x128 - feedback appreciated. The vertical resolution is set in the call to S1351.init Due to the way the 96 line display addresses there is a limitation on changing orientation within a program. All orientations work properly if used by themselves. You can also change flexibly between PORTRAIT and LANDSCAPE (or RPORTRAIT to RLANDSCAPE) within a program and everything will work properly. i.e. you can draw something in PORTRAIT and annotate it with text in LANDSCAPE before reverting back to PORTRAIT. However, if you try and mix between the pairs strange things happen. So if you draw in PORTRAIT and try and annotate with text in RLANDSCAPE the things drawn in PORTRAIT will move on the screen when applying the text and visa versa. I suspect this limitation will not apply if using a 128x128 display but again feedback would be appreciated |
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| Zonker Guru Joined: 18/08/2012 Location: United StatesPosts: 761 |
@Matherp... Good evening Peter.. The 2.2" TFT 176x220 Display units got here today... I programed up a 28 pinner with v4.7b8 and downloaded your program that uses the 8 bit interface... Out of time tonight, but should have it wired up tomorrow.. One question if I might... What value of current limiting resistor should be used for the LED back light..? I will be running the display on 3.3v (solder blob on J1) I was thinking 18 ohms, but not sure... What would give MAX brightness without decreasing the life of the back light..? Thank you for you time fine Sir..!  |
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| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 8583 |
I just run 3.3V direct - but I haven't measured the current In my simplistic world if it doesn't get too hot it is OK  |
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| Zonker Guru Joined: 18/08/2012 Location: United StatesPosts: 761 |
Ok... Hey, I have got 10 of them... Tally Ho, here we go... I want to use these for single "slave" gauges on the Rs-485 bus. They just listen for their data values and show things using your awesome gauge code..! I think we need to add an "oh sh*t" mode if the unit stops receiving data from the bus... Maybe a large red "X" like I have seen on some other cockpit stuff... The comms protocol is dead easy, consisting of an attention character, "#", followed by gauge type, then gauge instance, and data value with a simple "cr-lf" as the terminator... Anyway, nuff bable from here... I will get things hooked up tonight after I get back from the hell-hole... Thanks Peter for all your contributions to this project..! BTW - How is your GA- Airplane project build coming along..? |
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| Zonker Guru Joined: 18/08/2012 Location: United StatesPosts: 761 |
Ok.. All seems fine... Demo code working OK... Brightness is indeed awesome..! Demo has been running for about 4 hours... No heating problems with display back light... Sweet... I think this one is a winner... Now for some head scratching...
Thanks Peter for doing the hard stuff on this one..!!  |
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