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Add 16 bit parallel support for RP2040 processor 

The parallel support is implemented with PIO as write only to the display. DMA to the display is supported.
This commit is contained in:
Bodmer 2022-04-18 23:39:20 +01:00
parent a0fa2c31bd
commit 1727ea1501
20 changed files with 866 additions and 43 deletions
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23
Processors/TFT_eSPI_RP2040.c
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@ -28,9 +28,12 @@
// SPI PIO code for 16 bit colour transmit
#include "pio_SPI.pio.h"
#endif
#else
#elif defined (TFT_PARALLEL_8_BIT)
// SPI PIO code for 8 bit parallel interface (16 bit colour)
#include "pio_8bit_parallel.pio.h"
#else // must be TFT_PARALLEL_16_BIT
// SPI PIO code for 16 bit parallel interface (16 bit colour)
#include "pio_16bit_parallel.pio.h"
#endif
// Board package specific differences
@ -189,7 +192,7 @@ void pioinit(uint32_t clock_freq) {
pio_instr_set_dc = pio_encode_set((pio_src_dest)0, 1);
pio_instr_clr_dc = pio_encode_set((pio_src_dest)0, 0);
}
#else
#else // 8 or 16 bit parallel
void pioinit(uint16_t clock_div, uint16_t fract_div) {
// Find a free SM on one of the PIO's
@ -212,21 +215,27 @@ void pioinit(uint16_t clock_div, uint16_t fract_div) {
}
}
*/
#if defined (TFT_PARALLEL_8_BIT)
uint8_t bits = 8;
#else // must be TFT_PARALLEL_16_BIT
uint8_t bits = 16;
#endif
// Load the PIO program
program_offset = pio_add_program(tft_pio, &tft_io_program);
// Associate pins with the PIO
pio_gpio_init(tft_pio, TFT_DC);
pio_gpio_init(tft_pio, TFT_WR);
for (int i = 0; i < 8; i++) {
for (int i = 0; i < bits; i++) {
pio_gpio_init(tft_pio, TFT_D0 + i);
}
// Configure the pins to be outputs
pio_sm_set_consecutive_pindirs(tft_pio, pio_sm, TFT_DC, 1, true);
pio_sm_set_consecutive_pindirs(tft_pio, pio_sm, TFT_WR, 1, true);
pio_sm_set_consecutive_pindirs(tft_pio, pio_sm, TFT_D0, 8, true);
pio_sm_set_consecutive_pindirs(tft_pio, pio_sm, TFT_D0, bits, true);
// Configure the state machine
pio_sm_config c = tft_io_program_get_default_config(program_offset);
@ -234,8 +243,8 @@ void pioinit(uint16_t clock_div, uint16_t fract_div) {
sm_config_set_set_pins(&c, TFT_DC, 1);
// Define the single side-set pin
sm_config_set_sideset_pins(&c, TFT_WR);
// Define the 8 consecutive pins that are used for data output
sm_config_set_out_pins(&c, TFT_D0, 8);
// Define the consecutive pins that are used for data output
sm_config_set_out_pins(&c, TFT_D0, bits);
// Set clock divider and fractional divider
sm_config_set_clkdiv_int_frac(&c, clock_div, fract_div);
// Make a single 8 words FIFO from the 4 words TX and RX FIFOs

37
Processors/TFT_eSPI_RP2040.h
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@ -30,7 +30,7 @@
// Include processor specific header
// None
#if defined (TFT_PARALLEL_8_BIT) || defined (RP2040_PIO_SPI)
#if defined (TFT_PARALLEL_8_BIT) || defined (TFT_PARALLEL_16_BIT) || defined (RP2040_PIO_SPI)
#define RP2040_PIO_INTERFACE
#define RP2040_PIO_PUSHBLOCK
#endif
@ -80,18 +80,33 @@
#endif
#else
// ILI9481 needs a slower cycle time
// Byte rate = (CPU clock/(4 * divider))
#ifdef ILI9481_DRIVER
#define DIV_UNITS 1
#define DIV_FRACT 160
#else
#define DIV_UNITS 1
#define DIV_FRACT 0
// Different controllers have different minimum write cycle periods, so the PIO clock is changed accordingly
// The PIO clock is a division of the CPU clock so scales when the processor is overclocked
// PIO write frequency = (CPU clock/(4 * DIV_UNITS))
#if defined (TFT_PARALLEL_8_BIT) || defined (TFT_PARALLEL_16_BIT) || defined (RP2040_PIO_SPI)
#if defined (TFT_PARALLEL_16_BIT)
// Different display drivers have different minimum write cycle times
#if defined (HX8357C_DRIVER) || defined (SSD1963_DRIVER)
#define DIV_UNITS 1 // 32ns write cycle time SSD1963, HX8357C (maybe HX8357D?)
#elif defined (ILI9486_DRIVER) || defined (HX8357B_DRIVER) || defined (HX8357D_DRIVER)
#define DIV_UNITS 2 // 64ns write cycle time ILI9486, HX8357D, HX8357B
#else // ILI9481 needs a slower cycle time
#define DIV_UNITS 3 // 96ns write cycle time
#endif
#define DIV_FRACT 0
#else // 8 bit parallel mode
#ifdef ILI9481_DRIVER
#define DIV_UNITS 1
#define DIV_FRACT 160 // Note: Fractional values done with clock period dithering
#else
#define DIV_UNITS 1
#define DIV_FRACT 0
#endif
#endif
#endif
// Initialise TFT data bus
#if defined (TFT_PARALLEL_8_BIT)
#if defined (TFT_PARALLEL_8_BIT) || defined (TFT_PARALLEL_16_BIT)
#define INIT_TFT_DATA_BUS pioinit(DIV_UNITS, DIV_FRACT);
#elif defined (RP2040_PIO_SPI)
#define INIT_TFT_DATA_BUS pioinit(SPI_FREQUENCY);
@ -184,7 +199,7 @@
////////////////////////////////////////////////////////////////////////////////////////
// Define the WR (TFT Write) pin drive code
////////////////////////////////////////////////////////////////////////////////////////
#if !defined (TFT_PARALLEL_8_BIT) // SPI
#if !defined (TFT_PARALLEL_8_BIT) && !defined (TFT_PARALLEL_16_BIT) // SPI
#ifdef TFT_WR
#define WR_L digitalWrite(TFT_WR, LOW)
#define WR_H digitalWrite(TFT_WR, HIGH)

84
Processors/pio_16bit_parallel.pio Normal file
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@ -0,0 +1,84 @@
// Raspberry Pi Pico PIO program to output data to a TFT
// controller via a 16 bit 8080 style data path.
// Original sourced from:
// https://github.com/zapta/pio_tft
// Side set: 1 output pin, TFT_WR. Active low.
// Data set: 16 consecutive output pins, TFT_D0 .. TFT_D15
.program tft_io
.side_set 1 opt ; The TFT_WR output.
// The C++ code switches between the different SM routines
// by waiting for the SM to be idle and setting its PC.
// The default SM routine is a 16 bit transfer
// Do a block fill of N+1 pixels.
public block_fill:
// Fetch colour value.
pull side 1
// Move colour to x.
mov x, osr
// Fetch pixel count N (sends N+1 pixels).
pull
// Move pixel count to y.
mov y, osr
next:
// Copy colour value into osr, colour in LS 16 bits.
mov osr, x side 1
// Output colour 16 bits, unwanted top 16 bits shifted through.
out pins, 32 side 0 [1]
// Decrement pixel count and loop.
jmp y--, next side 1
.wrap_target
// Transmit a 16 bit value (LS 16 bits of 32 bits).
public start_tx:
// Fetch the next 32 bit value from the TX FIFO and set TFT_WR high.
pull side 1
// Write the 16 bits and set WR low. This also
// shifts the unused top 16 bits through.
out pins, 32 side 0 [1]
// Set WR high and jump back to start.
jmp start_tx side 1
// Transmit an 8 bit value (LS 8 bits of 32 bits).
public start_8:
// Fetch the next 32 bit value from the TX FIFO and set TFT_WR high.
pull side 1
// Write the first byte (LSB) and sets WR low. This also
// shifts the unused top 16 bits through.
out pins, 32 side 0 [1]
// Jump to start
jmp start_tx side 1
// Transmit a set window command sequence.
public set_addr_window:
// Loop count in x (to send caset, paset and ramwr commands).
set x, 2 side 1
pull_cmd:
// Set TFT_DC low.
set pins, 0
// Fetch caset, paset or ramwr.
pull
// Output LS byte (caset, paset or ramwr), discarding top 16 bits, set TFT_WR low.
out pins, 32 side 0
// Jump to end if 3rd cmd byte ramwr sent (x == 0)
jmp !x, end_set_addr
// pull next start and end coordinates, TFT_WR high.
pull side 1
// Set TFT_DC high.
set pins, 1
send_xy:
// Output byte, TFT_WR low.
out pins, 8 side 0 [1]
// Loop until 4 bytes sent, TFT_WR high.
jmp !osre, send_xy side 1 [1]
end_set_addr:
// Loop back for next command and write last command.
jmp x--, pull_cmd side 1
// Set DC high.
set pins, 1
// Auto-wrap back to start_tx.
.wrap

65
Processors/pio_16bit_parallel.pio.h Normal file
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@ -0,0 +1,65 @@
// -------------------------------------------------- //
// This file is autogenerated by pioasm; do not edit! //
// -------------------------------------------------- //
#pragma once
#if !PICO_NO_HARDWARE
#include "hardware/pio.h"
#endif
// ------ //
// tft_io //
// ------ //
#define tft_io_wrap_target 7
#define tft_io_wrap 23
#define tft_io_offset_block_fill 0u
#define tft_io_offset_start_tx 7u
#define tft_io_offset_start_8 10u
#define tft_io_offset_set_addr_window 13u
static const uint16_t tft_io_program_instructions[] = {
0x98a0, // 0: pull block side 1
0xa027, // 1: mov x, osr
0x80a0, // 2: pull block
0xa047, // 3: mov y, osr
0xb8e1, // 4: mov osr, x side 1
0x7100, // 5: out pins, 32 side 0 [1]
0x1884, // 6: jmp y--, 4 side 1
// .wrap_target
0x98a0, // 7: pull block side 1
0x7100, // 8: out pins, 32 side 0 [1]
0x1807, // 9: jmp 7 side 1
0x98a0, // 10: pull block side 1
0x7100, // 11: out pins, 32 side 0 [1]
0x1807, // 12: jmp 7 side 1
0xf822, // 13: set x, 2 side 1
0xe000, // 14: set pins, 0
0x80a0, // 15: pull block
0x7000, // 16: out pins, 32 side 0
0x0036, // 17: jmp !x, 22
0x98a0, // 18: pull block side 1
0xe001, // 19: set pins, 1
0x7108, // 20: out pins, 8 side 0 [1]
0x19f4, // 21: jmp !osre, 20 side 1 [1]
0x184e, // 22: jmp x--, 14 side 1
0xe001, // 23: set pins, 1
// .wrap
};
#if !PICO_NO_HARDWARE
static const struct pio_program tft_io_program = {
.instructions = tft_io_program_instructions,
.length = 24,
.origin = -1,
};
static inline pio_sm_config tft_io_program_get_default_config(uint offset) {
pio_sm_config c = pio_get_default_sm_config();
sm_config_set_wrap(&c, offset + tft_io_wrap_target, offset + tft_io_wrap);
sm_config_set_sideset(&c, 2, true, false);
return c;
}
#endif

52
TFT_Drivers/HX8357B_Defines.h Normal file
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@ -0,0 +1,52 @@
// Change the width and height if required (defined in portrait mode)
// or use the constructor to over-ride defaults
#define TFT_WIDTH 320
#define TFT_HEIGHT 480
// Delay between some initialisation commands
#define TFT_INIT_DELAY 0x80 // Not used unless commandlist invoked
// Generic commands used by TFT_eSPar.cpp
#define TFT_NOP 0x00
#define TFT_SWRST 0x01
#define TFT_SLPIN 0x10
#define TFT_SLPOUT 0x11
#define TFT_INVOFF 0x20
#define TFT_INVON 0x21
#define TFT_DISPOFF 0x28
#define TFT_DISPON 0x29
#define TFT_CASET 0x2A
#define TFT_PASET 0x2B
#define TFT_RAMWR 0x2C
#define TFT_RAMRD 0x2E
#define TFT_MADCTL 0x36
#define TFT_MAD_MY 0x80
#define TFT_MAD_MX 0x40
#define TFT_MAD_MV 0x20
#define TFT_MAD_ML 0x10
#define TFT_MAD_RGB 0x00
#define TFT_MAD_BGR 0x08
#define TFT_MAD_MH 0x04
#define TFT_MAD_SS 0x02
#define TFT_MAD_GS 0x01
#ifdef TFT_RGB_ORDER
#if (TFT_RGB_ORDER == 1)
#define TFT_MAD_COLOR_ORDER TFT_MAD_RGB
#else
#define TFT_MAD_COLOR_ORDER TFT_MAD_BGR
#endif
#else
#define TFT_MAD_COLOR_ORDER TFT_MAD_BGR
#endif
#define TFT_IDXRD 0x00 // ILI9341 only, indexed control register read

76
TFT_Drivers/HX8357B_Init.h Normal file
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@ -0,0 +1,76 @@
// This is the command sequence that initialises the HX8357B driver
//
// This setup information uses simple 8 bit SPI writecommand() and writedata() functions
//
// See ST7735_Setup.h file for an alternative format
// Configure HX8357-B display
writecommand(0x11);
delay(20);
writecommand(0xD0);
writedata(0x07);
writedata(0x42);
writedata(0x18);
writecommand(0xD1);
writedata(0x00);
writedata(0x07);
writedata(0x10);
writecommand(0xD2);
writedata(0x01);
writedata(0x02);
writecommand(0xC0);
writedata(0x10);
writedata(0x3B);
writedata(0x00);
writedata(0x02);
writedata(0x11);
writecommand(0xC5);
writedata(0x08);
writecommand(0xC8);
writedata(0x00);
writedata(0x32);
writedata(0x36);
writedata(0x45);
writedata(0x06);
writedata(0x16);
writedata(0x37);
writedata(0x75);
writedata(0x77);
writedata(0x54);
writedata(0x0C);
writedata(0x00);
writecommand(0x36);
writedata(0x0a);
writecommand(0x3A);
writedata(0x55);
writecommand(0x2A);
writedata(0x00);
writedata(0x00);
writedata(0x01);
writedata(0x3F);
writecommand(0x2B);
writedata(0x00);
writedata(0x00);
writedata(0x01);
writedata(0xDF);
delay(120);
writecommand(0x29);
delay(25);
// End of HX8357B display configuration

47
TFT_Drivers/HX8357B_Rotation.h Normal file
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@ -0,0 +1,47 @@
// This is the command sequence that rotates the HX8357C driver coordinate frame
writecommand(TFT_MADCTL);
rotation = m % 8;
switch (rotation) {
case 0: // Portrait
writedata(TFT_MAD_COLOR_ORDER | TFT_MAD_MX);
_width = _init_width;
_height = _init_height;
break;
case 1: // Landscape (Portrait + 90)
writedata(TFT_MAD_COLOR_ORDER | TFT_MAD_MV);
_width = _init_height;
_height = _init_width;
break;
case 2: // Inverter portrait
writedata( TFT_MAD_COLOR_ORDER | TFT_MAD_MY);
_width = _init_width;
_height = _init_height;
break;
case 3: // Inverted landscape
writedata(TFT_MAD_COLOR_ORDER | TFT_MAD_MV | TFT_MAD_MX | TFT_MAD_MY);
_width = _init_height;
_height = _init_width;
break;
case 4: // Portrait
writedata(TFT_MAD_COLOR_ORDER | TFT_MAD_MX | TFT_MAD_MY);
_width = _init_width;
_height = _init_height;
break;
case 5: // Landscape (Portrait + 90)
writedata(TFT_MAD_COLOR_ORDER | TFT_MAD_MV | TFT_MAD_MX);
_width = _init_height;
_height = _init_width;
break;
case 6: // Inverter portrait
writedata( TFT_MAD_COLOR_ORDER);
_width = _init_width;
_height = _init_height;
break;
case 7: // Inverted landscape
writedata(TFT_MAD_COLOR_ORDER | TFT_MAD_MV | TFT_MAD_MY);
_width = _init_height;
_height = _init_width;
break;
}

52
TFT_Drivers/HX8357C_Defines.h Normal file
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@ -0,0 +1,52 @@
// Change the width and height if required (defined in portrait mode)
// or use the constructor to over-ride defaults
#define TFT_WIDTH 320
#define TFT_HEIGHT 480
// Delay between some initialisation commands
#define TFT_INIT_DELAY 0x80 // Not used unless commandlist invoked
// Generic commands used by TFT_eSPar.cpp
#define TFT_NOP 0x00
#define TFT_SWRST 0x01
#define TFT_SLPIN 0x10
#define TFT_SLPOUT 0x11
#define TFT_INVOFF 0x20
#define TFT_INVON 0x21
#define TFT_DISPOFF 0x28
#define TFT_DISPON 0x29
#define TFT_CASET 0x2A
#define TFT_PASET 0x2B
#define TFT_RAMWR 0x2C
#define TFT_RAMRD 0x2E
#define TFT_MADCTL 0x36
#define TFT_MAD_MY 0x80
#define TFT_MAD_MX 0x40
#define TFT_MAD_MV 0x20
#define TFT_MAD_ML 0x10
#define TFT_MAD_RGB 0x00
#define TFT_MAD_BGR 0x08
#define TFT_MAD_MH 0x04
#define TFT_MAD_SS 0x02
#define TFT_MAD_GS 0x01
#ifdef TFT_RGB_ORDER
#if (TFT_RGB_ORDER == 1)
#define TFT_MAD_COLOR_ORDER TFT_MAD_RGB
#else
#define TFT_MAD_COLOR_ORDER TFT_MAD_BGR
#endif
#else
#define TFT_MAD_COLOR_ORDER TFT_MAD_BGR
#endif
#define TFT_IDXRD 0x00 // ILI9341 only, indexed control register read

116
TFT_Drivers/HX8357C_Init.h Normal file
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@ -0,0 +1,116 @@
// This is the command sequence that initialises the HX8357C driver
//
// This setup information uses simple 8 bit SPI writecommand() and writedata() functions
//
// See ST7735_Setup.h file for an alternative format
// Configure HX8357C display
writecommand(0xB9); // Enable extension command
writedata(0xFF);
writedata(0x83);
writedata(0x57);
delay(50);
writecommand(0xB6); //Set VCOM voltage
writedata(0x2C); //0x52 for HSD 3.0"
writecommand(0x11); // Sleep off
delay(200);
writecommand(0x35); // Tearing effect on
writedata(0x00); // Added parameter
writecommand(0x3A); // Interface pixel format
writedata(0x55); // 16 bits per pixel
//writecommand(0xCC); // Set panel characteristic
//writedata(0x09); // S960>S1, G1>G480, R-G-B, normally black
//writecommand(0xB3); // RGB interface
//writedata(0x43);
//writedata(0x00);
//writedata(0x06);
//writedata(0x06);
writecommand(0xB1); // Power control
writedata(0x00);
writedata(0x15);
writedata(0x0D);
writedata(0x0D);
writedata(0x83);
writedata(0x48);
writecommand(0xC0); // Does this do anything?
writedata(0x24);
writedata(0x24);
writedata(0x01);
writedata(0x3C);
writedata(0xC8);
writedata(0x08);
writecommand(0xB4); // Display cycle
writedata(0x02);
writedata(0x40);
writedata(0x00);
writedata(0x2A);
writedata(0x2A);
writedata(0x0D);
writedata(0x4F);
writecommand(0xE0); // Gamma curve
writedata(0x00);
writedata(0x15);
writedata(0x1D);
writedata(0x2A);
writedata(0x31);
writedata(0x42);
writedata(0x4C);
writedata(0x53);
writedata(0x45);
writedata(0x40);
writedata(0x3B);
writedata(0x32);
writedata(0x2E);
writedata(0x28);
writedata(0x24);
writedata(0x03);
writedata(0x00);
writedata(0x15);
writedata(0x1D);
writedata(0x2A);
writedata(0x31);
writedata(0x42);
writedata(0x4C);
writedata(0x53);
writedata(0x45);
writedata(0x40);
writedata(0x3B);
writedata(0x32);
writedata(0x2E);
writedata(0x28);
writedata(0x24);
writedata(0x03);
writedata(0x00);
writedata(0x01);
writecommand(0x36); // MADCTL Memory access control
writedata(0x48);
delay(20);
writecommand(0x21); //Display inversion on
delay(20);
writecommand(0x29); // Display on
delay(120);
// End of HX8357C display configuration

47
TFT_Drivers/HX8357C_Rotation.h Normal file
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@ -0,0 +1,47 @@
// This is the command sequence that rotates the HX8357C driver coordinate frame
writecommand(TFT_MADCTL);
rotation = m % 8;
switch (rotation) {
case 0: // Portrait
writedata(TFT_MAD_COLOR_ORDER | TFT_MAD_MX);
_width = _init_width;
_height = _init_height;
break;
case 1: // Landscape (Portrait + 90)
writedata(TFT_MAD_COLOR_ORDER | TFT_MAD_MV);
_width = _init_height;
_height = _init_width;
break;
case 2: // Inverter portrait
writedata( TFT_MAD_COLOR_ORDER | TFT_MAD_MY);
_width = _init_width;
_height = _init_height;
break;
case 3: // Inverted landscape
writedata(TFT_MAD_COLOR_ORDER | TFT_MAD_MV | TFT_MAD_MX | TFT_MAD_MY);
_width = _init_height;
_height = _init_width;
break;
case 4: // Portrait
writedata(TFT_MAD_COLOR_ORDER | TFT_MAD_MX | TFT_MAD_MY);
_width = _init_width;
_height = _init_height;
break;
case 5: // Landscape (Portrait + 90)
writedata(TFT_MAD_COLOR_ORDER | TFT_MAD_MV | TFT_MAD_MX);
_width = _init_height;
_height = _init_width;
break;
case 6: // Inverter portrait
writedata( TFT_MAD_COLOR_ORDER);
_width = _init_width;
_height = _init_height;
break;
case 7: // Inverted landscape
writedata(TFT_MAD_COLOR_ORDER | TFT_MAD_MV | TFT_MAD_MY);
_width = _init_height;
_height = _init_width;
break;
}

205
TFT_Drivers/ILI9481_Init.h
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@ -11,6 +11,8 @@
//#define ILI9481_INIT_4 // AUO317
//#define ILI9481_INIT_5 // CMO35 *****
//#define ILI9481_INIT_6 // RGB
//#define ILI9481_INIT_7 // From #1774
//#define ILI9481_INIT_8 // From #1774
/////////////////////////////////////////////////////////////////////////////////////////
#ifdef ILI9481_INIT_1
@ -61,13 +63,13 @@
writedata(0x0A);
writecommand(0x3A);
#if defined (TFT_PARALLEL_8_BIT) || defined (RPI_DISPLAY_TYPE)
#if defined (TFT_PARALLEL_8_BIT) || defined (TFT_PARALLEL_16_BIT) || defined (RPI_DISPLAY_TYPE)
writedata(0x55); // 16 bit colour interface
#else
writedata(0x66); // 18 bit colour interface
#endif
#ifndef TFT_PARALLEL_8_BIT
#if !defined (TFT_PARALLEL_8_BIT) && !defined (TFT_PARALLEL_16_BIT)
writecommand(TFT_INVON);
#endif
@ -150,13 +152,13 @@
writedata(0x0A);
writecommand(0x3A);
#if defined (TFT_PARALLEL_8_BIT) || defined (RPI_DISPLAY_TYPE)
#if defined (TFT_PARALLEL_8_BIT) || defined (TFT_PARALLEL_16_BIT) || defined (RPI_DISPLAY_TYPE)
writedata(0x55); // 16 bit colour interface
#else
writedata(0x66); // 18 bit colour interface
#endif
#ifndef TFT_PARALLEL_8_BIT
#if !defined (TFT_PARALLEL_8_BIT) && !defined (TFT_PARALLEL_16_BIT)
writecommand(TFT_INVON);
#endif
@ -239,13 +241,13 @@
writedata(0x0A);
writecommand(0x3A);
#if defined (TFT_PARALLEL_8_BIT) || defined (RPI_DISPLAY_TYPE)
#if defined (TFT_PARALLEL_8_BIT) || defined (TFT_PARALLEL_16_BIT) || defined (RPI_DISPLAY_TYPE)
writedata(0x55); // 16 bit colour interface
#else
writedata(0x66); // 18 bit colour interface
#endif
#ifndef TFT_PARALLEL_8_BIT
#if !defined (TFT_PARALLEL_8_BIT) && !defined (TFT_PARALLEL_16_BIT)
writecommand(TFT_INVON);
#endif
@ -324,13 +326,13 @@
writedata(0x0A);
writecommand(0x3A);
#if defined (TFT_PARALLEL_8_BIT) || defined (RPI_DISPLAY_TYPE)
#if defined (TFT_PARALLEL_8_BIT) || defined (TFT_PARALLEL_16_BIT) || defined (RPI_DISPLAY_TYPE)
writedata(0x55); // 16 bit colour interface
#else
writedata(0x66); // 18 bit colour interface
#endif
#ifndef TFT_PARALLEL_8_BIT
#if !defined (TFT_PARALLEL_8_BIT) && !defined (TFT_PARALLEL_16_BIT)
writecommand(TFT_INVON);
#endif
@ -412,13 +414,13 @@
writedata(0x0A);
writecommand(0x3A);
#if defined (TFT_PARALLEL_8_BIT) || defined (RPI_DISPLAY_TYPE)
#if defined (TFT_PARALLEL_8_BIT) || defined (TFT_PARALLEL_16_BIT) || defined (RPI_DISPLAY_TYPE)
writedata(0x55); // 16 bit colour interface
#else
writedata(0x66); // 18 bit colour interface
#endif
#ifndef TFT_PARALLEL_8_BIT
#if !defined (TFT_PARALLEL_8_BIT) && !defined (TFT_PARALLEL_16_BIT)
writecommand(TFT_INVON);
#endif
@ -524,13 +526,13 @@
writedata(0x0A);
writecommand(0x3A);
#if defined (TFT_PARALLEL_8_BIT) || defined (RPI_DISPLAY_TYPE)
#if defined (TFT_PARALLEL_8_BIT) || defined (TFT_PARALLEL_16_BIT) || defined (RPI_DISPLAY_TYPE)
writedata(0x55); // 16 bit colour interface
#else
writedata(0x66); // 18 bit colour interface
#endif
#ifndef TFT_PARALLEL_8_BIT
#if !defined (TFT_PARALLEL_8_BIT) && !defined (TFT_PARALLEL_16_BIT)
writecommand(TFT_INVON);
#endif
@ -552,4 +554,183 @@
delay(25);
// End of ILI9481 display configuration
/////////////////////////////////////////////////////////////////////////////////////////
// From #1774
#elif defined (ILI9481_INIT_7)
///ili9481+cmi3.5ips //效果不好
//************* Start Initial Sequence **********//
writecommand(0x11);
delay(20);
writecommand(0xD0);
writedata(0x07);
writedata(0x42);
writedata(0x1B);
writecommand(0xD1);
writedata(0x00);
writedata(0x14);
writedata(0x1B);
writecommand(0xD2);
writedata(0x01);
writedata(0x12);
writecommand(0xC0);
writedata(0x10);
writedata(0x3B);
writedata(0x00);
writedata(0x02);
writedata(0x01);
writecommand(0xC5);
writedata(0x03);
writecommand(0xC8);
writedata(0x00);
writedata(0x46);
writedata(0x44);
writedata(0x50);
writedata(0x04);
writedata(0x16);
writedata(0x33);
writedata(0x13);
writedata(0x77);
writedata(0x05);
writedata(0x0F);
writedata(0x00);
writecommand(0x36);
writedata(0x0A);
writecommand(0x3A);
#if defined (TFT_PARALLEL_8_BIT) || defined (TFT_PARALLEL_16_BIT) || defined (RPI_DISPLAY_TYPE)
writedata(0x55); // 16 bit colour interface
#else
writedata(0x66); // 18 bit colour interface
#endif
#if !defined (TFT_PARALLEL_8_BIT) && !defined (TFT_PARALLEL_16_BIT)
writecommand(TFT_INVON);
#endif
writecommand(0x22);
writedata(0x00);
writedata(0x00);
writedata(0x01);
writedata(0x3F);
writecommand(0x2B);
writedata(0x00);
writedata(0x00);
writedata(0x01);
writedata(0xE0);
delay(120);
writecommand(0x29);
#elif defined (ILI9481_INIT_8)
//3.5IPS ILI9481+CMI
writecommand(0x01); //Soft_rese
delay(220);
writecommand(0x11);
delay(280);
writecommand(0xd0); //Power_Setting
writedata(0x07);//07 VC[2:0] Sets the ratio factor of Vci to generate the reference voltages Vci1
writedata(0x44);//41 BT[2:0] Sets the Step up factor and output voltage level from the reference voltages Vci1
writedata(0x1E);//1f 17 1C VRH[3:0]: Sets the factor to generate VREG1OUT from VCILVL
delay(220);
writecommand(0xd1); //VCOM Control
writedata(0x00);//00
writedata(0x0C);//1A VCM [6:0] is used to set factor to generate VCOMH voltage from the reference voltage VREG1OUT 15 09
writedata(0x1A);//1F VDV[4:0] is used to set the VCOM alternating amplitude in the range of VREG1OUT x 0.70 to VREG1OUT 1F 18
writecommand(0xC5); //Frame Rate
writedata(0x03); // 03 02
writecommand(0xd2); //Power_Setting for Normal Mode
writedata(0x01); //01
writedata(0x11); //11
writecommand(0xE4); //?
writedata(0xa0);
writecommand(0xf3);
writedata(0x00);
writedata(0x2a);
//1 OK
writecommand(0xc8);
writedata(0x00);
writedata(0x26);
writedata(0x21);
writedata(0x00);
writedata(0x00);
writedata(0x1f);
writedata(0x65);
writedata(0x23);
writedata(0x77);
writedata(0x00);
writedata(0x0f);
writedata(0x00);
//GAMMA SETTING
writecommand(0xC0); //Panel Driving Setting
writedata(0x00); //1//00 REV SM GS
writedata(0x3B); //2//NL[5:0]: Sets the number of lines to drive the LCD at an interval of 8 lines.
writedata(0x00); //3//SCN[6:0]
writedata(0x02); //4//PTV: Sets the Vcom output in non-display area drive period
writedata(0x11); //5//NDL: Sets the source output level in non-display area. PTG: Sets the scan mode in non-display area.
writecommand(0xc6); //Interface Control
writedata(0x83);
//GAMMA SETTING
writecommand(0xf0); //?
writedata(0x01);
writecommand(0xE4);//?
writedata(0xa0);
//////倒装设置 NG
writecommand(0x36);
writedata(0x0A); // 8C:出来两行 CA：出来一个点
writecommand(0x3a);
#if defined (TFT_PARALLEL_8_BIT) || defined (TFT_PARALLEL_16_BIT) || defined (RPI_DISPLAY_TYPE)
writedata(0x55); // 16 bit colour interface
#else
writedata(0x66); // 18 bit colour interface
#endif
#if !defined (TFT_PARALLEL_8_BIT) && !defined (TFT_PARALLEL_16_BIT)
writecommand(TFT_INVON);
#endif
writecommand(0xb4);//Display Mode and Frame Memory Write Mode Setting
writedata(0x02);
writedata(0x00); //?
writedata(0x00);
writedata(0x01);
delay(280);
writecommand(0x2a);
writedata(0x00);
writedata(0x00);
writedata(0x01);
writedata(0x3F); //3F
writecommand(0x2b);
writedata(0x00);
writedata(0x00);
writedata(0x01);
writedata(0xDf); //DF
//writecommand(0x21);
writecommand(0x29);
writecommand(0x2c);
#endif

4
TFT_Drivers/ILI9486_Init.h
View File

@ -15,7 +15,7 @@
delay(120);
writecommand(0x3A);
#if defined (TFT_PARALLEL_8_BIT) || defined (RPI_DISPLAY_TYPE)
#if defined (TFT_PARALLEL_8_BIT) || defined (TFT_PARALLEL_16_BIT) || defined (RPI_DISPLAY_TYPE)
writedata(0x55); // 16 bit colour interface
#else
writedata(0x66); // 18 bit colour interface
@ -64,7 +64,7 @@
writedata(0x20);
writedata(0x00);
#if defined (TFT_PARALLEL_8_BIT) || defined (RPI_DISPLAY_TYPE)
#if defined (TFT_PARALLEL_8_BIT) || defined (TFT_PARALLEL_16_BIT) || defined (RPI_DISPLAY_TYPE)
writecommand(TFT_INVOFF);
#else
writecommand(TFT_INVON);

2
TFT_Drivers/ILI9488_Init.h
View File

@ -58,7 +58,7 @@
writedata(0x48); // MX, BGR
writecommand(0x3A); // Pixel Interface Format
#if defined (TFT_PARALLEL_8_BIT) || defined (RPI_DISPLAY_TYPE)
#if defined (TFT_PARALLEL_8_BIT) || defined (TFT_PARALLEL_16_BIT) || defined (RPI_DISPLAY_TYPE)
writedata(0x55); // 16 bit colour for parallel
#else
writedata(0x66); // 18 bit colour for SPI

20
TFT_eSPI.cpp
View File

@ -743,6 +743,12 @@ void TFT_eSPI::init(uint8_t tc)
#elif defined (RM68120_DRIVER)
#include "TFT_Drivers/RM68120_Init.h"
#elif defined (HX8357B_DRIVER)
#include "TFT_Drivers/HX8357B_Init.h"
#elif defined (HX8357C_DRIVER)
#include "TFT_Drivers/HX8357C_Init.h"
#endif
#ifdef TFT_INVERSION_ON
@ -834,6 +840,12 @@ void TFT_eSPI::setRotation(uint8_t m)
#elif defined (RM68120_DRIVER)
#include "TFT_Drivers/RM68120_Rotation.h"
#elif defined (HX8357B_DRIVER)
#include "TFT_Drivers/HX8357B_Rotation.h"
#elif defined (HX8357C_DRIVER)
#include "TFT_Drivers/HX8357C_Rotation.h"
#endif
delayMicroseconds(10);
@ -3418,7 +3430,7 @@ void TFT_eSPI::drawPixel(int32_t x, int32_t y, uint32_t color)
// write to RAM
DC_C; tft_Write_8(TFT_RAMWR);
#if defined(TFT_PARALLEL_8_BIT) || !defined(ESP32)
#if defined(TFT_PARALLEL_8_BIT) || defined(TFT_PARALLEL_16_BIT) || !defined(ESP32)
DC_D; tft_Write_16(color);
#else
DC_D; tft_Write_16N(color);
@ -3546,7 +3558,7 @@ void TFT_eSPI::drawPixel(int32_t x, int32_t y, uint32_t color)
DC_C; tft_Write_8(TFT_RAMWR);
#if defined(TFT_PARALLEL_8_BIT) || !defined(ESP32)
#if defined(TFT_PARALLEL_8_BIT) || defined(TFT_PARALLEL_16_BIT) || !defined(ESP32)
DC_D; tft_Write_16(color);
#else
DC_D; tft_Write_16N(color);
@ -5371,7 +5383,7 @@ void TFT_eSPI::getSetup(setup_t &tft_settings)
tft_settings.trans = false;
#endif
#if defined (TFT_PARALLEL_8_BIT)
#if defined (TFT_PARALLEL_8_BIT) || defined(TFT_PARALLEL_16_BIT)
tft_settings.serial = false;
tft_settings.tft_spi_freq = 0;
#else
@ -5470,7 +5482,7 @@ void TFT_eSPI::getSetup(setup_t &tft_settings)
tft_settings.pin_tft_rst = -1;
#endif
#if defined (TFT_PARALLEL_8_BIT)
#if defined (TFT_PARALLEL_8_BIT) || defined(TFT_PARALLEL_16_BIT)
tft_settings.pin_tft_d0 = TFT_D0;
tft_settings.pin_tft_d1 = TFT_D1;
tft_settings.pin_tft_d2 = TFT_D2;

4
TFT_eSPI.h
View File

@ -16,7 +16,7 @@
#ifndef _TFT_eSPIH_
#define _TFT_eSPIH_
#define TFT_ESPI_VERSION "2.4.50"
#define TFT_ESPI_VERSION "2.4.51"
// Bit level feature flags
// Bit 0 set: viewport capability
@ -868,7 +868,7 @@ class TFT_eSPI : public Print { friend class TFT_eSprite; // Sprite class has ac
// Load the Touch extension
#ifdef TOUCH_CS
#if defined (TFT_PARALLEL_8_BIT) || defined (RP2040_PIO_INTERFACE)
#error >>>>------>> Touch functions not supported in 8 bit parallel mode or with RP2040 PIO.
#error >>>>------>> Touch functions not supported in 8/16 bit parallel mode or with RP2040 PIO.
#else
#include "Extensions/Touch.h" // Loaded if TOUCH_CS is defined by user
#endif

3
User_Setup.h
View File

@ -31,8 +31,9 @@
//#define STM_PORTA_DATA_BUS
//#define STM_PORTB_DATA_BUS
// Tell the library to use 8 bit parallel mode (otherwise SPI is assumed)
// Tell the library to use 8 or bit parallel mode (otherwise SPI is assumed)
//#define TFT_PARALLEL_8_BIT
//#defined TFT_PARALLEL_16_BIT // **** 16 bit parallel ONLY for RP2040 processor ****
// Display type - only define if RPi display
//#define RPI_DISPLAY_TYPE // 20MHz maximum SPI

4
User_Setup_Select.h
View File

@ -19,7 +19,7 @@
// Only ONE line below should be uncommented. Add extra lines and files as needed.
#include <User_Setup.h> // Default setup is root library folder
//#include <User_Setup.h> // Default setup is root library folder
//#include <User_Setups/Setup1_ILI9341.h> // Setup file configured for my ILI9341
//#include <User_Setups/Setup2_ST7735.h> // Setup file configured for my ST7735
@ -94,6 +94,8 @@
//#include <User_Setups/Setup103_RP2040_ILI9486_parallel.h>
//#include <User_Setups/Setup104_RP2040_ST7796_parallel.h>
//#include <User_Setups/Setup105_RP2040_ILI9341_PIO_SPI.h> // Setup file for Raspberry Pi Pico with SPI PIO interface and ILI9341
//#include <User_Setups/Setup107_RP2040_ILI9481_16bit_parallel.h> // Setup file for RP2040 16 bit parallel display
#include <User_Setups/Setup107_RP2040_ILI9341_16bit_parallel.h> // Setup file for RP2040 16 bit parallel display
//#include <User_Setups/Setup135_ST7789.h> // Setup file for ESP8266 and ST7789 135 x 240 TFT

64
User_Setups/Setup107_RP2040_ILI9341_16bit_parallel.h Normal file
View File

@ -0,0 +1,64 @@
// This setup is for the RP2040 processor only when used with 8 bit parallel displays
// See SetupX_Template.h for all options available
#define USER_SETUP_ID 107
////////////////////////////////////////////////////////////////////////////////////////////
// Interface
////////////////////////////////////////////////////////////////////////////////////////////
//#define TFT_PARALLEL_8_BIT
#define TFT_PARALLEL_16_BIT
////////////////////////////////////////////////////////////////////////////////////////////
// Display driver type
////////////////////////////////////////////////////////////////////////////////////////////
#define ILI9341_DRIVER
//#define ILI9481_DRIVER // Tested
//#define HX8357B_DRIVER // Tested
//#define HX8357C_DRIVER // Tested
////////////////////////////////////////////////////////////////////////////////////////////
// RP2040 pins used
////////////////////////////////////////////////////////////////////////////////////////////
// These pins can be moved and are controlled directly by the library software
#define TFT_RST 18 // Reset pin
#define TFT_CS 19 // Do not define if chip select control pin permanently connected to 0V
//#define TFT_RD -1 // Do not define, read pin must be permanently connected to 3V3
// Note: All the following pins are PIO hardware configured and driven
#define TFT_WR 16 // Write strobe pin
#define TFT_DC 17 // Data Command control pin
// PIO requires these to be sequentially increasing - do not change
#define TFT_D0 0
#define TFT_D1 1
#define TFT_D2 2
#define TFT_D3 3
#define TFT_D4 4
#define TFT_D5 5
#define TFT_D6 6
#define TFT_D7 7
#define TFT_D8 8
#define TFT_D9 9
#define TFT_D10 10
#define TFT_D11 11
#define TFT_D12 12
#define TFT_D13 13
#define TFT_D14 14
#define TFT_D15 15
//*/
////////////////////////////////////////////////////////////////////////////////////////////
// Fonts to be available
////////////////////////////////////////////////////////////////////////////////////////////
#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
#define SMOOTH_FONT
////////////////////////////////////////////////////////////////////////////////////////////

2
library.json
View File

@ -1,6 +1,6 @@
{
"name": "TFT_eSPI",
"version": "2.4.50",
"version": "2.4.51",
"keywords": "Arduino, tft, display, ttgo, LilyPi, WT32-SC01, ePaper, display, Pico, RP2040 Nano Connect, RP2040, STM32, ESP8266, NodeMCU, ESP32, M5Stack, ILI9341, ST7735, ILI9163, S6D02A1, ILI9481, ILI9486, ILI9488, ST7789, ST7796, RM68140, SSD1351, SSD1963, ILI9225, HX8357D, GC9A01, R61581",
"description": "A TFT and ePaper SPI graphics library with optimisation for Raspberry Pi Pico, RP2040, ESP8266, ESP32 and STM32",
"repository":

2
library.properties
View File

@ -1,5 +1,5 @@
name=TFT_eSPI
version=2.4.50
version=2.4.51
author=Bodmer
maintainer=Bodmer
sentence=TFT graphics library for Arduino processors with performance optimisation for RP2040, STM32, ESP8266 and ESP32