mirror of
https://github.com/Bodmer/TFT_eSPI.git
synced 2025-08-06 14:14:44 +02:00
Add SPI overlap support Issue #26
Note, must use latest ESP board package with support for the overlap mode
This commit is contained in:
Bodmer
@@ -48,6 +48,7 @@ readcommand16 KEYWORD2
|
||||
readcommand32 KEYWORD2
|
||||
readPixel KEYWORD2
|
||||
readRect KEYWORD2
|
||||
pushRect KEYWORD2
|
||||
readRectRGB KEYWORD2
|
||||
getRotation KEYWORD2
|
||||
fontsLoaded KEYWORD2
|
||||
|
||||
16
TFT_eSPI.cpp
16
TFT_eSPI.cpp
@@ -164,10 +164,17 @@ void TFT_eSPI::init(void)
|
||||
#ifdef TFT_WR
|
||||
wrpinmask = (uint32_t) digitalPinToBitMask(TFT_WR);
|
||||
#endif
|
||||
|
||||
#ifdef TFT_SPI_OVERLAP
|
||||
// Overlap mode SD0=MISO, SD1=MOSI, CLK=SCLK must use D3 as CS
|
||||
// pins(int8_t sck, int8_t miso, int8_t mosi, int8_t ss);
|
||||
//SPI.pins( 6, 7, 8, 0);
|
||||
SPI.pins(6, 7, 8, 0);
|
||||
#endif
|
||||
|
||||
SPI.begin(); // This will set MISO to input
|
||||
SPI.begin(); // This will set HMISO to input
|
||||
#else
|
||||
#ifdef TFT_MOSI
|
||||
#if defined (TFT_MOSI) && !defined (TFT_SPI_OVERLAP)
|
||||
SPI.begin(TFT_SCLK, TFT_MISO, TFT_MOSI, -1);
|
||||
#else
|
||||
SPI.begin();
|
||||
@@ -183,8 +190,7 @@ void TFT_eSPI::init(void)
|
||||
SPI.setBitOrder(MSBFIRST);
|
||||
SPI.setDataMode(SPI_MODE0);
|
||||
SPI.setFrequency(SPI_FREQUENCY);
|
||||
//SPI.setHwCs(1); // Use hardware SS toggling on GPIO15 (D8) - not supported - benefit is only ~0.8% performance boost
|
||||
|
||||
|
||||
#ifdef ESP32 // Unlock the SPI hal mutex and set the lock management flags
|
||||
SPI.beginTransaction(SPISettings(SPI_FREQUENCY, MSBFIRST, SPI_MODE0));
|
||||
inTransaction = true; // Flag to stop intermediate spi_end calls
|
||||
@@ -197,6 +203,8 @@ void TFT_eSPI::init(void)
|
||||
#ifdef TFT_CS
|
||||
digitalWrite(TFT_CS, HIGH); // Chip select high (inactive)
|
||||
pinMode(TFT_CS, OUTPUT);
|
||||
#else
|
||||
SPI.setHwCs(1); // Use hardware SS toggling
|
||||
#endif
|
||||
|
||||
// Set to output once again in case D6 (MISO) is used for DC
|
||||
|
||||
@@ -86,6 +86,10 @@
|
||||
#define DC_D GPOS=dcpinmask
|
||||
#endif
|
||||
|
||||
#if defined (TFT_SPI_OVERLAP)
|
||||
#undef TFT_CS
|
||||
#endif
|
||||
|
||||
#ifndef TFT_CS
|
||||
#define CS_L // No macro allocated so it generates no code
|
||||
#define CS_H // No macro allocated so it generates no code
|
||||
|
||||
@@ -95,11 +95,13 @@
|
||||
//#define TFT_MISO 19
|
||||
//#define TFT_MOSI 23
|
||||
//#define TFT_SCLK 18
|
||||
//#define TFT_CS 5 // Chip select control pin
|
||||
//#define TFT_CS 15 // Chip select control pin
|
||||
//#define TFT_DC 2 // Data Command control pin
|
||||
//#define TFT_RST 4 // Reset pin (could connect to RST pin)
|
||||
//#define TFT_RST -1 // Set TFT_RST to -1 if display RESET is connected to ESP32 board RST
|
||||
|
||||
//#define TFT_WR 22 // Write strobe for modified Raspberry Pi TFT only
|
||||
|
||||
// ##################################################################################
|
||||
//
|
||||
// Section 2. Define the way the DC and/or CS lines are driven (ESP8266 only)
|
||||
|
||||
@@ -26,6 +26,7 @@
|
||||
//#include <User_Setups/Setup6_RPi_Wr_ILI9486.h> // Setup file configured for my modified RPi TFT
|
||||
//#include <User_Setups/Setup7_ST7735_128x128.h> // Setup file configured for my ST7735 128x128 display
|
||||
//#include <User_Setups/Setup8_ILI9163_128x128.h> // Setup file configured for my ILI9163 128x128 display
|
||||
//#include <User_Setups/Setup9_ST7735_Overlap.h> // Setup file configured for my ST7735
|
||||
|
||||
//#include <User_Setups/SetupX_Template.h> // Setup file template for copying/editting
|
||||
|
||||
@@ -64,3 +65,11 @@
|
||||
#define PIN_D8 15
|
||||
#define PIN_D9 3
|
||||
#define PIN_D10 1
|
||||
|
||||
#define PIN_MOSI 8
|
||||
#define PIN_MISO 7
|
||||
#define PIN_SCLK 6
|
||||
#define PIN_HWCS 0
|
||||
|
||||
#define PIN_D11 9
|
||||
#define PIN_D12 10
|
||||
163
User_Setups/Setup9_ST7735_Overlap.h
Normal file
163
User_Setups/Setup9_ST7735_Overlap.h
Normal file
@@ -0,0 +1,163 @@
|
||||
// USER DEFINED SETTINGS
|
||||
//
|
||||
// The User_Setup header that will be called up is defined in User_Setup_Select.h
|
||||
//
|
||||
// Set driver type, fonts to be loaded, pins used and SPI control method etc
|
||||
//
|
||||
// If this file is editted correctly then all the library example sketches should
|
||||
// run without the need to make any more changes for a particular hardware setup!
|
||||
|
||||
// IMPORTANT
|
||||
// This particular setup uses the SPI overlap capabiltiy of the ESP8266, this allows
|
||||
// the FLASH SPI pins to be re-used with the TFT, saving pins for other functions.
|
||||
|
||||
// ##################################################################################
|
||||
//
|
||||
// Section 0. Call up the right driver file and any options for it
|
||||
//
|
||||
// ##################################################################################
|
||||
|
||||
// Only define one driver, the other ones must be commented out
|
||||
//#define ILI9341_DRIVER
|
||||
#define ST7735_DRIVER
|
||||
|
||||
// For ST7735 and ILI9163 ONLY, define the pixel width and height in portrait orientation
|
||||
#define TFT_WIDTH 128
|
||||
#define TFT_HEIGHT 160
|
||||
//#define TFT_HEIGHT 128
|
||||
|
||||
// For ST7735 ONLY, define the type of display, originally this was based on the
|
||||
// colour of the tab on the screen protector film but this is not always true, so try
|
||||
// out the different options below if the screen does not display graphics correctly,
|
||||
// e.g. colours wrong, mirror images, or tray pixels at the edges.
|
||||
// Comment out ALL BUT ONE of these options for a ST7735 display driver, save this
|
||||
// this User_Setup file, then rebuild and upload the sketch to the board again:
|
||||
|
||||
//#define ST7735_INITB
|
||||
//#define ST7735_GREENTAB
|
||||
//#define ST7735_GREENTAB2
|
||||
//#define ST7735_GREENTAB3
|
||||
#define ST7735_REDTAB
|
||||
//#define ST7735_BLACKTAB
|
||||
|
||||
// ##################################################################################
|
||||
//
|
||||
// Section 1. Define the pins that are used to interface with the display here
|
||||
//
|
||||
// ##################################################################################
|
||||
|
||||
// We must use hardware SPI, a minimum of 3 GPIO pins is needed.
|
||||
// Typical setup for NodeMCU ESP-12 with SPI overlap is :
|
||||
//
|
||||
// Display SDO/MISO to NodeMCU SD0 (or leave disconnected if not reading TFT)
|
||||
// Display LED to NodeMCU pin VIN (or 5V, see below)
|
||||
// Display SCK to NodeMCU pin CLK
|
||||
// Display SDI/MOSI to NodeMCU pin SD1
|
||||
// Display DC (or AO)to NodeMCU pin D8
|
||||
// Display RESET to NodeMCU pin D4 (or RST, see below)
|
||||
// Display CS to NodeMCU pin D3
|
||||
// Display GND to NodeMCU pin GND (0V)
|
||||
// Display VCC to NodeMCU 5V or 3.3V
|
||||
//
|
||||
// The TFT RESET pin can be connected to the NodeMCU RST pin or 3.3V to free up a control pin
|
||||
//
|
||||
// The NodeMCU D0 pin can be used for RST
|
||||
//
|
||||
// See Section 2. below if DC is connected to D0
|
||||
//
|
||||
// Note: only some versions of the NodeMCU provide the USB 5V on the VIN pin
|
||||
// If 5V is not available at a pin you can use 3.3V but backlight brightness
|
||||
// will be lower.
|
||||
|
||||
// ###### EDIT THE PIN NUMBERS IN THE LINES FOLLOWING TO SUIT YOUR SETUP ######
|
||||
|
||||
// ModeMCU
|
||||
// Do not define TFT_CS in overlap mode, TFT chip select must connect to pin D3
|
||||
#define TFT_CS PIN_D3
|
||||
#define TFT_DC PIN_D5 // 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
|
||||
|
||||
// ESP32 Dev board
|
||||
//#define TFT_CS 5 // Chip select control pin
|
||||
//#define TFT_DC 2 // Data Command control pin
|
||||
//#define TFT_RST 4 // Reset pin (could connect to Arduino RESET pin)
|
||||
//#define TFT_RST -1 // Set TFT_RST to -1 if display RESET is connected to ESP32 board RST
|
||||
|
||||
// ##################################################################################
|
||||
//
|
||||
// Section 2. Define the way the DC and/or CS lines are driven
|
||||
//
|
||||
// ##################################################################################
|
||||
|
||||
// Normally the library uses direct register access for the DC and CS lines for speed
|
||||
// If D0 (GPIO16) is used for CS or DC then a different slower method must be used
|
||||
// Uncomment one line if D0 is used for DC or CS
|
||||
// DC on D0 = 6% performance penalty at 40MHz SPI running graphics test
|
||||
// CS on D0 = 2% performance penalty at 40MHz SPI running graphics test
|
||||
|
||||
// #define D0_USED_FOR_DC
|
||||
// #define D0_USED_FOR_CS
|
||||
|
||||
// ##################################################################################
|
||||
//
|
||||
// Section 3. Define the fonts that are to be used here
|
||||
//
|
||||
// ##################################################################################
|
||||
|
||||
// Comment out the #defines below with // to stop that font being loaded
|
||||
// The ESP8366 had plenty of memory so commenting out fonts is not normally necessary
|
||||
// If all fonts are loaded the extra FLASH space required is about 17Kbytes...
|
||||
// To save FLASH space only enable the fonts you need!
|
||||
|
||||
#define LOAD_GLCD // Font 1. Original Adafruit 8 pixel font needs ~1820 bytes in FLASH
|
||||
#define LOAD_FONT2 // Font 2. Small 16 pixel high font, needs ~3534 bytes in FLASH, 96 characters
|
||||
#define LOAD_FONT4 // Font 4. Medium 26 pixel high font, needs ~5848 bytes in FLASH, 96 characters
|
||||
#define LOAD_FONT6 // Font 6. Large 48 pixel font, needs ~2666 bytes in FLASH, only characters 1234567890:-.apm
|
||||
#define LOAD_FONT7 // Font 7. 7 segment 48 pixel font, needs ~2438 bytes in FLASH, only characters 1234567890:.
|
||||
#define LOAD_FONT8 // Font 8. Large 75 pixel font needs ~3256 bytes in FLASH, only characters 1234567890:-.
|
||||
#define LOAD_GFXFF // FreeFonts. Include access to the 48 Adafruit_GFX free fonts FF1 to FF48 and custom fonts
|
||||
|
||||
// ##################################################################################
|
||||
//
|
||||
// Section 4. Not used
|
||||
//
|
||||
// ##################################################################################
|
||||
|
||||
|
||||
// ##################################################################################
|
||||
//
|
||||
// Section 5. Other options
|
||||
//
|
||||
// ##################################################################################
|
||||
|
||||
// Define the SPI clock frequency
|
||||
// With an ILI9341 display 40MHz works OK, 80MHz sometimes fails
|
||||
// With a ST7735 display more than 27MHz may not work (spurious pixels and lines)
|
||||
|
||||
// #define SPI_FREQUENCY 1000000
|
||||
// #define SPI_FREQUENCY 5000000
|
||||
// #define SPI_FREQUENCY 10000000
|
||||
// #define SPI_FREQUENCY 20000000
|
||||
#define SPI_FREQUENCY 27000000 // Maximum for my ST7735. It is actually 26.67MHz = 80/3
|
||||
// #define SPI_FREQUENCY 40000000 // Maximum to use SPIFFS
|
||||
// #define SPI_FREQUENCY 80000000
|
||||
|
||||
|
||||
// Comment out the following #define if "SPI Transactions" do not need to be
|
||||
// supported. Tranaction support is required if other SPI devices are connected.
|
||||
// When commented out the code size will be smaller and sketches will
|
||||
// run slightly faster, so leave it commented out unless you need it!
|
||||
// Transaction support is needed to work with SD library but not needed with TFT_SdFat
|
||||
|
||||
// #define SUPPORT_TRANSACTIONS
|
||||
|
||||
// If this next #define is not commented out then the SPI pins used by the program FLASH
|
||||
// can be shared with the TFT, this frees up the HSPI SCK, MOSI and MISO pins.
|
||||
// The TFT must be connected as follows for this to work:
|
||||
// TFT Chip Select to GPIO0 (pin D3 on a NodeMCU)
|
||||
// TFT MOSI/SDA to GPIO8/SDD1 (pin SD1 on a NodeMCU)
|
||||
// TFT MISO to GPIO7/SDD0 (pin SD0 on a NodeMCU) - does not need to be connected
|
||||
// TFT SCK to GPIO6/SDCLK (pin CLK on a NodeMCU)
|
||||
|
||||
#define TFT_SPI_OVERLAP
|
||||
Reference in New Issue
Block a user