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Author Topic: TI-84+ CSE support for KnightOS  (Read 10733 times)

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Offline Matrefeytontias

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Re: TI-84+ CSE support for KnightOS
« Reply #15 on: October 05, 2013, 10:00:41 am »
Yeah o/
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Offline AssemblyBandit

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Re: TI-84+ CSE support for KnightOS
« Reply #16 on: October 05, 2013, 07:18:51 pm »
 :w00t:
First, I apologize for leaving the code in such a mess, it was about 2am when I posted everything and I was ready for bed! It takes *forever* to make a change then test it and I had planned to continue working on it. I hadn't reviewed the TIOS, I just wrote a routine based on the datasheet and kinda merged it with the original code after verifying the values. Note that the datasheet isn't perfect and there is nothing more frustrating than a datasheet with missing info and errors! At first TI Connect (and my computer) didn't make it any easier by not recognizing my calc moments before I would upload KnightOS, then USOREC would throw an error, then the RAM gets cleared and I would have to start over! Some notes for anyone trying to test it: Cygwin needs 'make' under the dev tree, Tilp cannot be used, be ready for windows to try to reinstall your calc while using USOREC, use 'cd c:/cygwin/whatever' to navigate (not sure if spaces are allowed), and the createupgrade line was not working for me in the terminal, just put the line 'CreateUpgrade.exe TI84pCSE bin/kernel-TI84pCSE.rom 0F.key kernel.8cu 00' into a batch file.  I was so ready to give up before I even tested it! I'm glad it all worked out though, and the work on KnightOS is very admirable (and USOREC!). I really wanted the bitcoin, not for monetary use, but more like a prize. However, due to its monetary value, I think it would be better as a prize for the 2013 Omnimaga Contest if its appropriate/practical.
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Offline AssemblyBandit

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Re: TI-84+ CSE support for KnightOS
« Reply #17 on: October 05, 2013, 08:42:40 pm »
To clarify exactly what was done, here's the original routine along with the changes I made:

The original routine unaltered, copied straight from display-color.asm:
Code: [Select]
colorLcdOn:
    ; TODO: Research this more, it's probably not all required and we might want some of it done different.
    ; Could also probably be optimized if we didn't use this lcdout macro, but I'll save that for when the
    ; LCD is more well understood and everything is working.
    lcdout(0x01, 0x0000) ; Reset Out.Ctrl.1: Ensure scan directions are not reversed
    lcdout(0x02, 0x0200) ; LCD Driving Control: Sets inversion mode=line inversion and disables it
    lcdout(0x03, 0x1038) ; Init. Entry Mode: Cursor moves up/down, down, left, disable
    lcdout(0x08, 0x0202) ; Set front & back porches: 2 blank lines top & bottom
    lcdout(0x09, 0x0000) ; Reset Disp.Ctrl.3: Resets scanning stuff and off-screen voltage
    lcdout(0x0A, 0x0000) ; Disp.Ctrl.4: No FMARK
    lcdout(0x0C, 0x0000) ; RGB Disp.: Off
    lcdout(0x0D, 0x0000) ; FMARK position: Off
    lcdout(0x60, 0x2700) ; Driver Output Ctrl. 2
    lcdout(0x61, 0x0001) ; Base Image Display Ctrl: Use color inversion, no vertical scroll, reset voltage in non-display level
    lcdout(0x6A, 0x0000) ; Reset Vertical Scroll Ctrl.
    call colorLcdWait
    lcdout(0x10, 0x1190) ; Init Pwr.Ctrl.1: Exit standby, fiddle with voltages, enable
    lcdout(0x11, 0x0227) ; Pwr.Ctrl.2: Configure voltages
    call colorLcdWait
    lcdout(0x12, 0x008C) ; Pwr.Ctrl.3: More voltages
    call colorLcdWait
    lcdout(0x13, 0x1800) ; Pwr.Ctrl.4: Take a wild guess
    lcdout(0x29, 0x0030) ; Pwr.Ctrl.7: I'm not an LCD engineer, don't ask me.
    lcdout(0x2B, 0x000B) ; Set frame rate to 70
    call colorLcdWait
    ; Don't touch the gamma control ones, no one knows what they mean
    lcdout(0x30, 0x0000) ; Gamma Control 1
    lcdout(0x31, 0x0305) ; Gamma Control 2
    lcdout(0x32, 0x0002) ; Gamma Control 3
    lcdout(0x35, 0x0301) ; Gamma Control 4
    lcdout(0x36, 0x0004) ; Gamma Control 5
    lcdout(0x37, 0x0507) ; Gamma Control 6
    lcdout(0x38, 0x0204) ; Gamma Control 7
    lcdout(0x39, 0x0707) ; Gamma Control 8
    lcdout(0x3C, 0x0103) ; Gamma Control 9
    lcdout(0x3D, 0x0004) ; Gamma Control 10
   
    lcdout(0x50, 0x0000) ; Horiz.Win.Start: 0
    lcdout(0x51, 0x00EF) ; Horiz.Win.End: 239 = 240-1
    lcdout(0x52, 0x0000) ; Vert.Win.Start: 0
    lcdout(0x53, 0x013F) ; Vert.Win.End: 319 = 320-1
    call colorLcdWait
    lcdout(0x07, 0x0133) ; Disp.Ctrl.1: LCD scan & light on, ready to enter standby
    ; Turn on backlight
    in a, (0x3A)
    set 5, a
    out (0x3A), a
    ; Values found in TIOS, but not wikiti:
    ;lcdout(0x07, 0x0000) ; Settings modes, clears it for some reason?
    ;call colorLcdWait
    ;lcdout(0x10, 0x07F0) ; More power control
    ;call colorLcdWait
    ;lcdout(0x10, 0x07F1) ; Ditto
    ;call colorLcdWait
    lcdout(0x03, 0b1000000010111000) ; Entry mode the way we want it
    ret
After my modifications:
Code: [Select]
colorLcdOn:
    ; TODO: Research this more, it's probably not all required and we might want some of it done different.
    ; Could also probably be optimized if we didn't use this lcdout macro, but I'll save that for when the
    ; LCD is more well understood and everything is working.
    lcdout(0x07, 0x0000) ; Reset Disp.Ctrl.1: LCD scanning, command processing OFF
    lcdout(0x06, 0x0000)
;    lcdout(0x10, 0x07F1) ; Reset Pwr.Ctrl.1: Start RC oscillator, set voltages
    lcdout(0x11, 0x0007) ; Pwr.Ctrl.2: Configure voltages
    lcdout(0x12, 0x008C) ; Pwr.Ctrl.3: More voltages
    lcdout(0x13, 0x1800) ; Pwr.Ctrl.4: Take a wild guess
    lcdout(0x29, 0x0030) ; Pwr.Ctrl.7: I'm not an LCD engineer, don't ask me.
    call colorLcdWait
    lcdout(0x10, 0x0190) ; Init Pwr.Ctrl.1: Exit standby, fiddle with voltages, enable
    lcdout(0x11, 0x0227) ; Pwr.Ctrl.2: Configure voltages
    lcdout(0x06, 0x0001)
    call colorLcdWait
    call colorLcdWait
    lcdout(0x01, 0x0000) ; Reset Out.Ctrl.1: Ensure scan directions are not reversed
    lcdout(0x02, 0x0200) ; LCD Driving Control: Sets inversion mode=line inversion and disables it
    lcdout(0x03, 0x10b8) ; Init. Entry Mode: Cursor moves up/down, down, left, disable
    lcdout(0x08, 0x0202) ; Set front & back porches: 2 blank lines top & bottom
    lcdout(0x09, 0x0000) ; Reset Disp.Ctrl.3: Resets scanning stuff and off-screen voltage
    lcdout(0x0A, 0x0000) ; Disp.Ctrl.4: No FMARK
    lcdout(0x0C, 0x0000) ; RGB Disp.: Off
    lcdout(0x0D, 0x0000) ; FMARK position: Off
    lcdout(0x60, 0x2700) ; Driver Output Ctrl. 2
    lcdout(0x61, 0x0001) ; Base Image Display Ctrl: Use color inversion, no vertical scroll, reset voltage in non-display level
    lcdout(0x6A, 0x0000) ; Reset Vertical Scroll Ctrl.
    lcdout(0x90, 0x0010)
    lcdout(0x92, 0x0600)
    lcdout(0x95, 0x0200)
    lcdout(0x97, 0x0c00)
    lcdout(0x30, 0x0000) ; Gamma Control 1
    lcdout(0x31, 0x0305) ; Gamma Control 2
    lcdout(0x32, 0x0002) ; Gamma Control 3
    lcdout(0x35, 0x0301) ; Gamma Control 4
    lcdout(0x36, 0x0004) ; Gamma Control 5
    lcdout(0x37, 0x0507) ; Gamma Control 6
    lcdout(0x38, 0x0204) ; Gamma Control 7
    lcdout(0x39, 0x0707) ; Gamma Control 8
    lcdout(0x3C, 0x0103) ; Gamma Control 9
    lcdout(0x3D, 0x0004) ; Gamma Control 10
    lcdout(0x50, 0x0000) ; Horiz.Win.Start: 0
    lcdout(0x51, 0x00EF) ; Horiz.Win.End: 239 = 240-1
    lcdout(0x52, 0x0000) ; Vert.Win.Start: 0
    lcdout(0x53, 0x013F) ; Vert.Win.End: 319 = 320-1
    lcdout(0x2B, 0x000B) ; Set frame rate to 70
    lcdout(0x10, 0x1190) ; Init Pwr.Ctrl.1: Exit standby, fiddle with voltages, enable
    lcdout(0x07, 0x0001) ; Reset Disp.Ctrl.1: LCD scanning, command processing OFF
    call colorLcdWait
    call colorLcdWait
    lcdout(0x07, 0x0023) ; Reset Disp.Ctrl.1: LCD scanning, command processing OFF
    call colorLcdWait
    call colorLcdWait
    lcdout(0x07, 0x0133) ; Disp.Ctrl.1: LCD scan & light on, ready to enter standby
    ; Turn on backlight

    ; Values found in TIOS, but not wikiti:
    ;lcdout(0x07, 0x0000) ; Settings modes, clears it for some reason?
    ;call colorLcdWait
    ;lcdout(0x10, 0x07F0) ; More power control
    ;call colorLcdWait
    ;lcdout(0x10, 0x07F1) ; Ditto
    ;call colorLcdWait
    ;lcdout(0x03, 0b1000000010111000) ; Entry mode the way we want it
    ret
As you can see, I added the Panel Interface Registers, Register 6 (which is not documented anywhere but by me!), and sent the proper values (in order) according to what I've gathered off the datasheet. As requested, and as verified by the video I posted, it initializes the display and I included the basic overview of what's going on in a previous post.
« Last Edit: October 05, 2013, 09:31:56 pm by AssemblyBandit »
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Offline DJ Omnimaga

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Re: TI-84+ CSE support for KnightOS
« Reply #18 on: October 05, 2013, 09:24:42 pm »
Yeah IIRC he requested help to fix the code compatibility with the 84+CSE. If the original code and description contained any credits and you left them intact, then I don't see anything wrong.
« Last Edit: October 05, 2013, 09:25:36 pm by DJ Omnimaga »
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