arduino/TFT_eSPI
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Support ST7789 rotation offset and boards with no chip select

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Other minor changes to tidy code up
Put back in ability to call init() multiple times in sketch
This commit is contained in:
Bodmer 2018-07-06 18:48:24 +01:00
parent 6c78430d9a
commit 51ed23af0f
12 changed files with 82 additions and 52 deletions
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2
TFT_Drivers/RPI_ILI9486_Defines.h → TFT_Drivers/ILI9486_Defines.h
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@ -4,7 +4,7 @@
#define TFT_HEIGHT 480
// For Raspberry Pi ILI9486 only with a modified board to add a write strobe:
#ifdef TFT_WR
#if defined (TFT_WR) && defined (RPI_ILI9486_DRIVER)
#define RPI_WRITE_STROBE
#endif

0
TFT_Drivers/RPI_ILI9486_Init.h → TFT_Drivers/ILI9486_Init.h
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0
TFT_Drivers/RPI_ILI9486_Rotation.h → TFT_Drivers/ILI9486_Rotation.h
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2
TFT_Drivers/ILI9488_Init.h
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@ -42,7 +42,7 @@
writedata(0x80);
writedata(0x40);
writecommand(0xE0); // Positive Gamma Control
writecommand(0xE0); // Positive Gamma Control
writedata(0x00);
writedata(0x03);
writedata(0x09);

1
TFT_Drivers/ST7789_Defines.h
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@ -3,6 +3,7 @@
#define TFT_WIDTH 240
#define TFT_HEIGHT 240
#define CGRAM_OFFSET
// Delay between some initialisation commands
#define TFT_INIT_DELAY 0x80 // Not used unless commandlist invoked

5
TFT_Drivers/ST7789_Init.h
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@ -2,6 +2,7 @@
// This is the command sequence that initialises the ST7789 driver
// Configure ST7789 display
{
static const uint8_t PROGMEM
st7789[] = {
@ -9,7 +10,7 @@ static const uint8_t PROGMEM
TFT_SWRST, TFT_INIT_DELAY, 150,
TFT_SLPOUT, TFT_INIT_DELAY, 255,
TFT_COLMOD, 1+TFT_INIT_DELAY, 0x55, 10,
TFT_MADCTL, 1, 0x00,
TFT_MADCTL, 1, TFT_MAD_RGB,
TFT_CASET, 4, 0x00, 0x00, 0x00, 0xF0,
TFT_PASET, 4, 0x00, 0x00, 0x00, 0xF0,
TFT_INVON, TFT_INIT_DELAY, 10,
@ -21,5 +22,3 @@ static const uint8_t PROGMEM
}
// End of ST7789 display configuration

32
TFT_Drivers/ST7789_Rotation.h
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@ -4,23 +4,31 @@
rotation = m % 4;
switch (rotation) {
case 0: // Portrait
writedata(TFT_MAD_MX | TFT_MAD_MY | TFT_MAD_RGB);
_width = TFT_WIDTH;
_height = TFT_HEIGHT;
writedata(TFT_MAD_RGB);
_width = _init_width;
_height = _init_height;
colstart = 0;
rowstart = 0;
break;
case 1: // Landscape (Portrait + 90)
writedata(TFT_MAD_MV | TFT_MAD_MY | TFT_MAD_RGB);
_width = TFT_HEIGHT;
_height = TFT_WIDTH;
writedata(TFT_MAD_MX | TFT_MAD_MV | TFT_MAD_RGB);
_width = _init_height;
_height = _init_width;
colstart = 0;
rowstart = 0;
break;
case 2: // Inverter portrait
writedata(TFT_MAD_RGB);
_width = TFT_WIDTH;
_height = TFT_HEIGHT;
writedata(TFT_MAD_MX | TFT_MAD_MY | TFT_MAD_RGB);
_width = _init_width;
_height = _init_height;
colstart = 0;
rowstart = 80;
break;
case 3: // Inverted landscape
writedata(TFT_MAD_MX | TFT_MAD_MV | TFT_MAD_RGB);
_width = TFT_HEIGHT;
_height = TFT_WIDTH;
writedata(TFT_MAD_MV | TFT_MAD_MY | TFT_MAD_RGB);
_width = _init_height;
_height = _init_width;
colstart = 80;
rowstart = 0;
break;
}

59
TFT_eSPI.cpp
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@ -48,7 +48,7 @@ void busDir(uint32_t mask, uint8_t mode);
inline void TFT_eSPI::spi_begin(void){
#if defined (SPI_HAS_TRANSACTION) && defined (SUPPORT_TRANSACTIONS) && !defined(ESP32_PARALLEL)
if (locked) {locked = false; SPI.beginTransaction(SPISettings(SPI_FREQUENCY, MSBFIRST, SPI_MODE0));}
if (locked) {locked = false; SPI.beginTransaction(SPISettings(SPI_FREQUENCY, MSBFIRST, TFT_SPI_MODE));}
#endif
}
@ -117,12 +117,6 @@ TFT_eSPI::TFT_eSPI(int16_t w, int16_t h)
#endif
#ifdef ESP32_PARALLEL
// Create a data bus and Write line GPIO bit clear mask
//clr_mask = (1 << TFT_D0) | (1 << TFT_D1) | (1 << TFT_D2) | (1 << TFT_D3) | (1 << TFT_D4) | (1 << TFT_D5) | (1 << TFT_D6) | (1 << TFT_D7) | (1 << TFT_WR);
// Create a data bus GPIO bit direction mask
//dir_mask = (1 << TFT_D0) | (1 << TFT_D1) | (1 << TFT_D2) | (1 << TFT_D3) | (1 << TFT_D4) | (1 << TFT_D5) | (1 << TFT_D6) | (1 << TFT_D7);
// Create a bit set lookup table for data bus - wastes 1kbyte of RAM but speeds things up dramatically
for (int c = 0; c<256; c++)
@ -168,6 +162,8 @@ TFT_eSPI::TFT_eSPI(int16_t w, int16_t h)
locked = true; // ESP32 transaction mutex lock flags
inTransaction = false;
_booted = true;
addr_row = 0xFFFF;
addr_col = 0xFFFF;
@ -216,11 +212,13 @@ void TFT_eSPI::begin(uint8_t tc)
/***************************************************************************************
** Function name: init
** Function name: init (tc is tab colour for ST7735 displays only)
** Description: Reset, then initialise the TFT display registers
***************************************************************************************/
void TFT_eSPI::init(uint8_t tc)
{
if (_booted)
{
#if !defined (ESP32)
#ifdef TFT_CS
cspinmask = (uint32_t) digitalPinToBitMask(TFT_CS);
@ -241,7 +239,7 @@ void TFT_eSPI::init(uint8_t tc)
SPI.pins(6, 7, 8, 0);
#endif
SPI.begin(); // This will set HMISO to input
SPI.begin(); // This will set HMISO to input
#else
#if !defined(ESP32_PARALLEL)
#if defined (TFT_MOSI) && !defined (TFT_SPI_OVERLAP)
@ -252,15 +250,15 @@ void TFT_eSPI::init(uint8_t tc)
#endif
#endif
inTransaction = false;
locked = true;
inTransaction = false;
locked = true;
// SUPPORT_TRANSACTIONS is mandatory for ESP32 so the hal mutex is toggled
// so the code here is for ESP8266 only
#if !defined (SUPPORT_TRANSACTIONS) && defined (ESP8266)
SPI.setBitOrder(MSBFIRST);
SPI.setDataMode(SPI_MODE0);
SPI.setFrequency(SPI_FREQUENCY);
SPI.setBitOrder(MSBFIRST);
SPI.setDataMode(TFT_SPI_MODE);
SPI.setFrequency(SPI_FREQUENCY);
#endif
#if defined(ESP32_PARALLEL)
@ -278,11 +276,16 @@ void TFT_eSPI::init(uint8_t tc)
// Set to output once again in case D6 (MISO) is used for DC
#ifdef TFT_DC
digitalWrite(TFT_DC, HIGH); // Data/Command high = data mode
pinMode(TFT_DC, OUTPUT);
digitalWrite(TFT_DC, HIGH); // Data/Command high = data mode
pinMode(TFT_DC, OUTPUT);
#endif
_booted = false;
} // end of: if just _booted
// Toggle RST low to reset
spi_begin();
#ifdef TFT_RST
if (TFT_RST >= 0) {
digitalWrite(TFT_RST, HIGH);
@ -290,15 +293,14 @@ void TFT_eSPI::init(uint8_t tc)
digitalWrite(TFT_RST, LOW);
delay(20);
digitalWrite(TFT_RST, HIGH);
delay(150);
}
else writecommand(TFT_SWRST); // Software reset
#else
writecommand(TFT_SWRST); // Software reset
#endif
spi_begin();
writecommand(TFT_SWRST); // Software reset
spi_end();
delay(5); // Wait for software reset to complete
delay(150); // Wait for reset to complete
spi_begin();
@ -317,7 +319,7 @@ void TFT_eSPI::init(uint8_t tc)
#include "TFT_Drivers/S6D02A1_Init.h"
#elif defined (RPI_ILI9486_DRIVER)
#include "TFT_Drivers/RPI_ILI9486_Init.h"
#include "TFT_Drivers/ILI9486_Init.h"
#elif defined (ILI9486_DRIVER)
#include "TFT_Drivers/ILI9486_Init.h"
@ -338,6 +340,7 @@ void TFT_eSPI::init(uint8_t tc)
spi_end();
setRotation(rotation);
}
@ -364,7 +367,7 @@ void TFT_eSPI::setRotation(uint8_t m)
#include "TFT_Drivers/S6D02A1_Rotation.h"
#elif defined (RPI_ILI9486_DRIVER)
#include "TFT_Drivers/RPI_ILI9486_Rotation.h"
#include "TFT_Drivers/ILI9486_Rotation.h"
#elif defined (ILI9486_DRIVER)
#include "TFT_Drivers/ILI9486_Rotation.h"
@ -566,7 +569,7 @@ uint16_t TFT_eSPI::readPixel(int32_t x0, int32_t y0)
// Fetch the 16 bit BRG pixel
//uint16_t rgb = (readByte() << 8) | readByte();
#if defined (ILI9341_DRIVER) | defined (ILI9488_DRIVER) // Read 3 bytes
#if defined (ILI9341_DRIVER) | defined (ILI9488_DRIVER) // Read 3 bytes
// Read window pixel 24 bit RGB values and fill in LS bits
uint16_t rgb = ((readByte() & 0xF8) << 8) | ((readByte() & 0xFC) << 3) | (readByte() >> 3);
@ -578,7 +581,7 @@ uint16_t TFT_eSPI::readPixel(int32_t x0, int32_t y0)
return rgb;
#else // ILI9481 16 bit read
#else // ILI9481 16 bit read
// Fetch the 16 bit BRG pixel
uint16_t bgr = (readByte() << 8) | readByte();
@ -590,7 +593,7 @@ uint16_t TFT_eSPI::readPixel(int32_t x0, int32_t y0)
// Swap Red and Blue (could check MADCTL setting to see if this is needed)
return (bgr>>11) | (bgr<<11) | (bgr & 0x7E0);
#endif
#endif
#else // Not ESP32_PARALLEL
@ -2174,7 +2177,7 @@ void TFT_eSPI::drawChar(int32_t x, int32_t y, unsigned char c, uint32_t color, u
for (int8_t i = 0; i < 5; i++ ) column[i] = pgm_read_byte(font + (c * 5) + i);
column[5] = 0;
#if defined (ESP8266)
#if defined (ESP8266) && !defined (ILI9488_DRIVER)
color = (color >> 8) | (color << 8);
bg = (bg >> 8) | (bg << 8);
uint32_t spimask = ~((SPIMMOSI << SPILMOSI) | (SPIMMISO << SPILMISO));
@ -2197,7 +2200,7 @@ void TFT_eSPI::drawChar(int32_t x, int32_t y, unsigned char c, uint32_t color, u
SPI1CMD |= SPIBUSY;
while(SPI1CMD & SPIBUSY) {}
}
#else // for ESP32
#else // for ESP32 or ILI9488
for (int8_t j = 0; j < 8; j++) {
for (int8_t k = 0; k < 5; k++ ) {

25
TFT_eSPI.h
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@ -30,6 +30,12 @@
#define SPI_FREQUENCY 20000000
#endif
#ifdef ST7789_DRIVER
#define TFT_SPI_MODE SPI_MODE3
#else
#define TFT_SPI_MODE SPI_MODE0
#endif
// If the frequency is not defined, set a default
#ifndef SPI_TOUCH_FREQUENCY
#define SPI_TOUCH_FREQUENCY 2500000
@ -214,12 +220,12 @@
#define tft_Write_8(C) GPIO.out_w1tc = clr_mask; GPIO.out_w1ts = set_mask((uint8_t)C); WR_H
// Write 16 bits to TFT
#ifdef PSEUDO_8_BIT
#define tft_Write_16(C) WR_L;GPIO.out_w1tc = clr_mask; GPIO.out_w1ts = set_mask((uint8_t)(C >> 0)); WR_H
#else
#define tft_Write_16(C) GPIO.out_w1tc = clr_mask; GPIO.out_w1ts = set_mask((uint8_t)(C >> 8)); WR_H; \
#ifdef PSEUDO_8_BIT
#define tft_Write_16(C) WR_L;GPIO.out_w1tc = clr_mask; GPIO.out_w1ts = set_mask((uint8_t)(C >> 0)); WR_H
#else
#define tft_Write_16(C) GPIO.out_w1tc = clr_mask; GPIO.out_w1ts = set_mask((uint8_t)(C >> 8)); WR_H; \
GPIO.out_w1tc = clr_mask; GPIO.out_w1ts = set_mask((uint8_t)(C >> 0)); WR_H
#endif
#endif
// 16 bit write with swapped bytes
#define tft_Write_16S(C) GPIO.out_w1tc = clr_mask; GPIO.out_w1ts = set_mask((uint8_t) (C >> 0)); WR_H; \
@ -238,6 +244,13 @@
//#define RD_H digitalWrite(TFT_WR, HIGH)
#endif
#elif defined (ILI9488_DRIVER) // 16 bit colour converted to 3 bytes for 24 bit RGB
#define tft_Write_8(C) SPI.transfer(C)
#define tft_Write_16(C) SPI.transfer(((C & 0xF800)>>8) | ((C & 0xF800)>>13)); \
SPI.transfer(((C & 0x07E0)>>3) | ((C & 0x07E0)>> 9)); \
SPI.transfer(((C & 0x001F)<<3) | ((C & 0x001F)>> 2))
#define tft_Write_32(C) SPI.write32(C)
#elif defined (RPI_ILI9486_DRIVER)
#define tft_Write_8(C) SPI.transfer(0); SPI.transfer(C)
#define tft_Write_16(C) SPI.write16(C)
@ -688,6 +701,8 @@ class TFT_eSPI : public Print {
bool _swapBytes; // Swap the byte order for TFT pushImage()
bool locked, inTransaction; // Transaction and mutex lock flags for ESP32
bool _booted;
int32_t _lastColor;
#ifdef LOAD_GFXFF

1
User_Setup.h
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@ -22,6 +22,7 @@
//#define RPI_ILI9486_DRIVER // 20MHz maximum SPI
//#define HX8357D_DRIVER
//#define ILI9481_DRIVER
//#define ILI9486_DRIVER
//#define ILI9488_DRIVER
//#define ST7789_DRIVER

5
User_Setup_Select.h
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@ -69,7 +69,10 @@
#include <TFT_Drivers/S6D02A1_Defines.h>
#define TFT_DRIVER 0x6D02
#elif defined (RPI_ILI9486_DRIVER)
#include <TFT_Drivers/RPI_ILI9486_Defines.h>
#include <TFT_Drivers/ILI9486_Defines.h>
#define TFT_DRIVER 0x9486
#elif defined (ILI9486_DRIVER)
#include <TFT_Drivers/ILI9486_Defines.h>
#define TFT_DRIVER 0x9486
#elif defined (ILI9481_DRIVER)
#include <TFT_Drivers/ILI9481_Defines.h>

2
User_Setups/Setup18_ST7789.h
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@ -88,7 +88,7 @@
// ###### EDIT THE PIN NUMBERS IN THE LINES FOLLOWING TO SUIT YOUR ESP8266 SETUP ######
// For NodeMCU - use pin numbers in the form PIN_Dx where Dx is the NodeMCU pin designation
#define TFT_CS PIN_D8 // Chip select control pin D8
//#define TFT_CS PIN_D8 // Chip select control pin D8
#define TFT_DC PIN_D3 // Data Command control pin
#define TFT_RST PIN_D4 // Reset pin (could connect to NodeMCU RST, see next line)
//#define TFT_RST -1 // Set TFT_RST to -1 if the display RESET is connected to NodeMCU RST or 3.3V