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fix duplicated conflicting offset; set up panel as 8-bit; slow down bus while building

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Jorj Bauer 2022-01-18 17:34:50 -05:00
parent d7b833da61
commit 1d2fb10e0f
2 changed files with 12 additions and 8 deletions
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10
teensy/RA8875_t4.cpp
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@ -112,7 +112,7 @@ void RA8875_t4::_initializeTFT()
delay(1);
// colorspace
_writeRegister(RA8875_SYSR, 0x0C); // 65k
_writeRegister(RA8875_SYSR, 0x00); // 8-bit (0x0C == 16-bit)
_writeRegister(RA8875_HDWR, 0x63); // LCD horizontal display width == (v+1)*8
_writeRegister(RA8875_HNDFTR, 0x00); // Horizontal non-display period fine tuning
@ -242,6 +242,11 @@ void RA8875_t4::fillWindow(uint16_t color)
_waitPoll(RA8875_DCR, RA8875_DCR_LINESQUTRI_STATUS, _RA8875_WAITPOLL_TIMEOUT_DCR_LINESQUTRI_STATUS);
}
// *** Remove this and convert to native 8-bit? Or make it inline?
uint8_t _color16To8bpp(uint16_t color) {
return ((color & 0xe000) >> 8) | ((color & 0x700) >> 6) | ((color & 0x18) >> 3);
}
void RA8875_t4::drawPixel(int16_t x, int16_t y, uint16_t color)
{
// FIXME: bounds checking
@ -255,7 +260,8 @@ void RA8875_t4::drawPixel(int16_t x, int16_t y, uint16_t color)
// Send pixel data
writeCommand(RA8875_MRWC); // write to wherever MWCR1 says (which we expect to be default graphics layer)
writeData16(color);
// writeData16(color);
_writeData(_color16To8bpp(color));
}
uint32_t RA8875_t4::frameCount()

10
teensy/teensy-display.cpp
View File

@ -15,13 +15,14 @@ extern const unsigned char interface_glyphs[256];
#include "globals.h"
#include "applevm.h"
#include "images.h"
#ifndef RA8875_HEIGHT
#define RA8875_HEIGHT 480
#endif
#include <SPI.h>
//#define _clock 50000000
#define _clock 20000000u // FIXME bring this up - it's under the default now
#define PIN_RST 8
#define PIN_DC 9
@ -30,9 +31,6 @@ extern const unsigned char interface_glyphs[256];
#define PIN_MISO 1
#define PIN_SCK 27
#define SCREENINSET_X (120)
#define SCREENINSET_Y (10)
// RGB map of each of the lowres colors
const uint16_t loresPixelColors[16] = { 0x0000, // 0 black
0xC006, // 1 magenta
@ -63,7 +61,7 @@ RA8875_t4 tft = RA8875_t4(PIN_CS, PIN_RST, PIN_MOSI, PIN_SCK, PIN_MISO);
TeensyDisplay::TeensyDisplay()
{
// tft.begin(Adafruit_800x480);
tft.begin();
tft.begin(_clock);
tft.fillWindow();
driveIndicator[0] = driveIndicator[1] = false;