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Forum Index : Microcontroller and PC projects : Pi-cromite V5.4.05 with documentation
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| matherp Guru  Joined: 11/12/2012 Location: United KingdomPosts: 8567 |
The Pi-cromite code has been stable for a bit now so I've tried to pull together as much of the information in the original huge thread as possible and incorporate it into a Pi-cromite manual 2017-08-11_102341_Pi-cromite_Manual.pdf I've also re-versioned the code and included some additional MMX features to maintain compatibility with the Micromite/MMX versioning 2017-08-11_103150_mmbasic.zip As always the primary source of information on the MMBasic language and most commands is the Micromite and Micromite+ manuals |
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| WhiteWizzard Guru Joined: 05/04/2013 Location: United KingdomPosts: 2794 |
Brilliant stuff - THANKS  For everything Micromite visit micromite.org Direct Email: whitewizzard@micromite.o |
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| paceman Guru Joined: 07/10/2011 Location: AustraliaPosts: 1326 |
Thanks for that from me too Peter. I've been chickening out of trying it out on the Zero-W I bought about two months ago - partly because I wasn't sure where to start in the thread! No excuse now - I'm going to have to bite the bullet and give it a go. Greg |
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| RonnS Senior Member  Joined: 16/07/2015 Location: GermanyPosts: 120 |
... thank you very much Peter ... i like it ! I'm still working on my smart home system - it's running with the Raspberry, but there's still much to make it better What do you think about my suggestion to use GTK + elements with the PiCromite ---will this be possible? GTK Widgets regards Ron |
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| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 8567 |
If I understand it this layers on top of X-windows so would need the full version of Raspbian installed. For the Pi Zero this is really too much overhead so I think it makes sense to stick with console window but I may be missing something |
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| RonnS Senior Member Joined: 16/07/2015 Location: GermanyPosts: 120 |
hi Peter , i like the PiCromite so we have all in one, a finishesd PCB without any soldering and so on and its run at 1200 mhz for some test i have decrase the clockspeed to 800 mhz .. it works well and the bitstream command does not make problems the cpu have to be cooled above 74 degrees mmbasic will stopp elesewere I bought a 3.5 inch display hoping it worked but it only shows half the screen you can help me ?? main parameter Type :TFT Interface :SPI Touch panel control chip : XPT2046 The color index : 65536色 Backlight: LED resolving power: 320×480 (Pixel) Size proportion: 8:5 power waste: TBD Back facet current: TBD Working temperature (c): TBD Interface definition Pin number identification describe 1、17 3.3V ------ Power supply positive (3.3V power input) 2、4 5V -- ---- Power supply positive (5V power input) 3、5、7、8、10、12、13、15、16 NC --- --- NC 6、9、14、20、25 GND ------- Power GND 11 TP_IRQ ------ Touch panel interrupt, detect the touch panel is pressed down to a low level 18 LCD_RS ------- Instruction / data register selection 19 LCD_SI / TP_SI ------ LCD display / touch panel SPI data input 21 TP_SO ----- SPI data output of touch panel 22 RST ----- reset 23 LCD_SCK / TP_SCK LCD -------- SPI clock signal for display / touch panel 24 LCD_CS -------- LCD chip select signal, low level LCD 26 TP_CS --------- The touch panel chip select signal, low level selection of touch panel Specifications LCD Type TFT LCD Interface SPI Touch Screen Type Resistive Touch Screen Controller XPT2046 Colors 65536 Backlight LED Resolution 320*480 (Pixel) Aspect Ratio 02:03 Power Consumption TBD Backlight Current TBD Operating Temp. (℃) TBD Interface PIN NO. SYMBOL DESCRIPTION 1, 17 3.3V Power positive (3.3V power input) 2, 4 5V Power positive (5V power input) 3, 5, 7, 8, 10, 12, 13, 15, 16 NC NC 6, 9, 14, 20, 25 GND Ground 11 TP_IRQ Touch Panel interrupt, low level while the Touch Panel detects touching 18 LCD_RS Instruction/Data Register selection 19 LCD_SI / TP_SI SPI data input of LCD/Touch Panel 21 TP_SO SPI data output of Touch Panel 22 RST Reset 23 LCD_SCK / TP_SCK SPI clock of LCD/Touch Panel 24 LCD_CS LCD chip selection, low active 26 TP_CS Touch Panel chip selection, low active many thanks Ronald |
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| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 8567 |
Can you provide a link to the specific screen? The problem is that there are at least three chips on these 3.5” boards ILI9341, ILI9488, ILI9327 which seem to be used interchangeably but are not exactly the same. They need different initialisation although run-time is the same |
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| RonnS Senior Member Joined: 16/07/2015 Location: GermanyPosts: 120 |
thank you Peter , here is the link https://www.amazon.de/gp/product/B06X191RX7/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1 i have a cd with installing instructions files the driver is called : LCD-show-160701.tar.gz or LCD-show-170315.tar.gz |
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| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 8567 |
Not sure I understand but if I assume that you are trying to use the TFT as a Pi console rather than using it from MMBasic then you need to tell MMBasic to leave the pins used by the display alone. The command for this is OPTION PINS nnnn (see manual for more info) Try OPTION PINS &B10111101100000010000000000 |
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| RonnS Senior Member Joined: 16/07/2015 Location: GermanyPosts: 120 |
hi Peter.., I wanted to use it as mmbasic display First I tried it with a zero W- today I tried it with a RPi 3 and its working  this pic shows the 3.5 Zoll LCD with an RPi3 I think the Zero-W is broken  and this pic shows the 4 Zoll LCD with an RPi3  if someone is interested in it the casing is from Combiplast Link |
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| RonnS Senior Member Joined: 16/07/2015 Location: GermanyPosts: 120 |
Syntax help needed: if i try: save image "Screen" i got an error: expected a string what im doing wrong ?? |
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| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 8567 |
Looks like SAVE IMAGE has gone missing  - leave it with meOne question though are you trying to use it on the display you reference above? If so it won't work because of the way the display is wired you can't read from the graphic memory |
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| RonnS Senior Member Joined: 16/07/2015 Location: GermanyPosts: 120 |
hi Peter, i used it with a 4 inch RPi Display like this http://www.thebackshed.com/forum/forum_posts.asp?TID=9546&PN=4 |
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| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 8567 |
This can't work with transparent text, blit and save image. These displays are wired as 16-bit parallel with on-board shift registers converting to SPI. The RD pin is not connected and in any event the shift registers are write only so there is no way to get information back from the display |
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| RonnS Senior Member Joined: 16/07/2015 Location: GermanyPosts: 120 |
ok thank you |
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| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 8567 |
Please find attached version 5.4.06 2017-08-31_125524_mmbasic.zip 2017-08-31_104350_Pi-cromite_Manual.pdf Changes are: Implemented SAVE IMAGE for all panel types including ILI9481 BLIT and transparent text now available for all panels. For the SSD1963 the RD pin no longer needs to be specified and can just be tied high instead. If it is specified it is just pulled high in the code. Huge (and I mean really huge) performance increase for all SPI panels, including near instantaneous drawing of complex GUI objects like the keyboard. A 320x240 full colour image can now be loaded onto an ILI9341 in 42msec on a Pi-Zero W. Try GUI TEST LCDPANEL before and after installing the new version to see the difference. Good improvements in SSD1963 drawing speed. Loading a 800x480 full colour image now takes just 0.37 seconds New option OPTION AUTOREFRESH ON/OFF and new command REFRESH. Together these allow you to update a screen in the background and choose when to display the change. This is best explained with a simple example: OPTION AUTOREFRESH OFF 'This option is not saved and defaults to ON at MMBasic start LOAD IMAGE "tiger" 'nothing obviously happens TEXT 100,100,"Tiger",,,4,RGB(red),-1 'draw a title in the background with transparent text REFRESH 'image appears with text already in place OPTION AUTOREFRESH ON BOX 0,0,320,240 'box appears immediately This is a fairly major rewrite of the drawing code so there may be bugs - please report anything you find |
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| RonnS Senior Member Joined: 16/07/2015 Location: GermanyPosts: 120 |
wow what a speed im happy..... so it was very slow at last mmbasic version on the Raspi Zero thank you very much Peter |
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| RonnS Senior Member Joined: 16/07/2015 Location: GermanyPosts: 120 |
this Pic i have made with "SAVE IMAGE" from the 3.5 inch display we talk about above and a Raspi 3  the salesman wrote me it has an ILI9486 Chip |
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| Peter63 Newbie  Joined: 28/07/2017 Location: SwedenPosts: 14 |
Hi Peter Nice work! Question: When i use MMBasic on Raspberry Pi (using Raspbian Lite Console mode) is it any commands for clear console screen (type: CLS console) ? Position cursor on console screen ? Console Size command (now 80x24 always) ? (Using HDMI screen an MMBasic (on Raspberry Pi), is a also a nice thing) :-) Peter |
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| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 8567 |
There is now  Note you can already change console size with OPTION DISLPAY height, width as per the MicromitePlease find attached version 5.4.07 2017-09-03_185823_mmbasic.zip 2017-09-03_185953_Pi-cromite_Manual.pdf Changes are: CLS CONSOLE 'Clears the text console CURSOR MOVE x,y 'Moves the text console cursor position to the X,Y position specified CURSOR COLOUR “fg”, “bc” 'Set the foreground and background colours for the text console. Only valid if OPTION COLOURCODE ON is set. Valid colours must be in quotes and are the normal 8 primaries RED, BLUE WHITE, BLACK, GREEN, CYAN, MAGENTA, YELLOW CURSOR UNDERLINE mode 'Sets/removes underline on the subsequent output. Valid modes are ON and OFF CURSOR REVERSE mode 'Sets/removes reverse colours on the subsequent output. Valid modes are ON and OFF CURSOR BOLD mode 'Sets/removes bold text mode on the subsequent output. Valid modes are ON and OFF |
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