Open
Description
Board
DNESP32P4
Device Description
DNESP32P4 mini-board with esp32 p4 chip
Hardware Configuration
16M flash 32M param
Version
v3.2.0
IDE Name
VS Code platformIO
SDK v5.4.1-1-g2f7dcd862a-dirty
Operating System
Windows 11
Flash frequency
80MHZ
PSRAM enabled
yes
Upload speed
115200
Description
Hi, I tried to use a ST7789 SPI 320*240 lcd screen on ESP32-P4 with Arduino TFT_eSPI and Adafruit ST7735 and ST7789 Library,
and found they both don't work on ESP32-P4.
After some testing, I found the software SPI mode in Adafruit T7789 Library works good on ESP32-P4 but with very slow speed,
and it also works good with ESP32-IDF framwork's esp_lcd component with hardware SPI.
It just doesn't work with the Arduino's hardware SPI on ESP32-P4.
The Arduino core that I used is lastest 3.2.0.
Finally I found that, the same simple code below lights up the ST7789 LCD with messy colors on ESP32-S3/ESP32-C3, but not work on ESP32-P4 with only a black backlighted screen.
// Works on ESP32 S3/C3 with hardware SPI
pinMode(TFT_CS, OUTPUT);
pinMode(TFT_DC, OUTPUT);
pinMode(TFT_RST, OUTPUT);
digitalWrite(TFT_CS, HIGH); // Chip select high (Inactive)
digitalWrite(TFT_DC, HIGH); // Data/Command high = data mode
digitalWrite(TFT_RST, HIGH);// NO Reset
SPI.begin(TFT_SCLK, TFT_MISO, TFT_MOSI, -1);
digitalWrite(TFT_CS, HIGH); // Chip select high (inactive)
digitalWrite(TFT_DC, HIGH); // Data/Command high = data mode
digitalWrite(TFT_RST, HIGH);
delay(200);
digitalWrite(TFT_RST, LOW);
delay(20);
digitalWrite(TFT_RST, HIGH);
delay(200);
// Sleep out
GPIO.out_w1tc.val = (1 << TFT_CS);
GPIO.out1_w1tc.val = (1 << (TFT_DC - 32));
*_spi_mosi_dlen = 7;
*_spi_w = ST7789_SLPOUT;
*_spi_cmd = SPI_UPDATE;
while(*_spi_cmd & SPI_UPDATE);
*_spi_cmd = SPI_USR;
while(*_spi_cmd & SPI_USR);
GPIO.out1_w1ts.val = (1 << (TFT_DC - 32));
GPIO.out_w1ts.val = (1 << TFT_CS);
delay(120);
// Display on
GPIO.out_w1tc.val = (1 << TFT_CS);
GPIO.out1_w1tc.val = (1 << (TFT_DC - 32));
*_spi_mosi_dlen = 7;
*_spi_w = ST7789_DISPON;
*_spi_cmd = SPI_UPDATE;
while(*_spi_cmd & SPI_UPDATE);
*_spi_cmd = SPI_USR;
while(*_spi_cmd & SPI_USR);
GPIO.out1_w1ts.val = (1 << (TFT_DC - 32));
GPIO.out_w1ts.val = (1 << TFT_CS);
delay(120);
pinMode(TFT_BL, OUTPUT);
digitalWrite(TFT_BL, HIGH);
My pin Settings on ESP32-P4
It works good with esp_lcd component in IDF framework but not work with Arduino framework.
#define TFT_MOSI 29
#define TFT_SCLK 30
#define TFT_CS 28
#define TFT_DC 49
#define TFT_BL 23
#define TFT_RST 50
#define TFT_MISO -1
#define ST7789_DRIVER
#define TFT_RGB_ORDER TFT_BGR
#define TFT_WIDTH 240
#define TFT_HEIGHT 320
Any suggestion will be appreciated, I just want to use TFT_eSPI library for LCD on ESP32 C3/S3/C6/P4 with the same code.
Sketch
// Works on ESP32 S3/C3 with hardware SPI
pinMode(TFT_CS, OUTPUT);
pinMode(TFT_DC, OUTPUT);
pinMode(TFT_RST, OUTPUT);
digitalWrite(TFT_CS, HIGH); // Chip select high (Inactive)
digitalWrite(TFT_DC, HIGH); // Data/Command high = data mode
digitalWrite(TFT_RST, HIGH);// NO Reset
SPI.begin(TFT_SCLK, TFT_MISO, TFT_MOSI, -1);
digitalWrite(TFT_CS, HIGH); // Chip select high (inactive)
digitalWrite(TFT_DC, HIGH); // Data/Command high = data mode
digitalWrite(TFT_RST, HIGH);
delay(200);
digitalWrite(TFT_RST, LOW);
delay(20);
digitalWrite(TFT_RST, HIGH);
delay(200);
// Sleep out
GPIO.out_w1tc.val = (1 << TFT_CS);
GPIO.out1_w1tc.val = (1 << (TFT_DC - 32));
*_spi_mosi_dlen = 7;
*_spi_w = ST7789_SLPOUT;
*_spi_cmd = SPI_UPDATE;
while(*_spi_cmd & SPI_UPDATE);
*_spi_cmd = SPI_USR;
while(*_spi_cmd & SPI_USR);
GPIO.out1_w1ts.val = (1 << (TFT_DC - 32));
GPIO.out_w1ts.val = (1 << TFT_CS);
delay(120);
// Display on
GPIO.out_w1tc.val = (1 << TFT_CS);
GPIO.out1_w1tc.val = (1 << (TFT_DC - 32));
*_spi_mosi_dlen = 7;
*_spi_w = ST7789_DISPON;
*_spi_cmd = SPI_UPDATE;
while(*_spi_cmd & SPI_UPDATE);
*_spi_cmd = SPI_USR;
while(*_spi_cmd & SPI_USR);
GPIO.out1_w1ts.val = (1 << (TFT_DC - 32));
GPIO.out_w1ts.val = (1 << TFT_CS);
delay(120);
pinMode(TFT_BL, OUTPUT);
digitalWrite(TFT_BL, HIGH);
#define TFT_MOSI 29
#define TFT_SCLK 30
#define TFT_CS 28
#define TFT_DC 49
#define TFT_BL 23
#define TFT_RST 50
#define TFT_MISO -1
#define ST7789_DRIVER
#define TFT_RGB_ORDER TFT_BGR
#define TFT_WIDTH 240
#define TFT_HEIGHT 320Debug Message
No error, no warning, lcd just not light up, loop() still works.
Other Steps to Reproduce
#include <Adafruit_GFX.h> // Core graphics library
#include <Adafruit_ST7789.h> // Hardware-specific library for ST7789
#include <Arduino.h>
#include <SPI.h>
// 7789 320*240
// For the breakout board, you can use any 2 or 3 pins.
// These pins will also work for the 1.8" TFT shield.
#define TFT_MOSI 29
#define TFT_SCLK 30
#define TFT_DC 49
#define TFT_CS 28
#define TFT_BL 23
#define TFT_RST 50 // Or set to -1 and connect to Arduino RESET pin
// OPTION 1 (recommended) is to use the HARDWARE SPI pins, which are unique
// to each board and not reassignable.
// This is the fastest mode of operation and is required if
// using the breakout board's microSD card.
// For 1.44" and 1.8" TFT with ST7735 use:
// Adafruit_ST7735 tft = Adafruit_ST7735(TFT_CS, TFT_DC, TFT_RST);
// For 1.14", 1.3", 1.54", 1.69", and 2.0" TFT with ST7789:
Adafruit_ST7789 tft = Adafruit_ST7789(TFT_CS, TFT_DC, TFT_RST);
// OPTION 2 lets you interface the display using ANY TWO or THREE PINS,
// tradeoff being that performance is not as fast as hardware SPI above.
// For ST7735-based displays, we will use this call
// Adafruit_ST7735 tft = Adafruit_ST7735(TFT_CS, TFT_DC, TFT_MOSI, TFT_SCLK, TFT_RST);
// OR for the ST7789-based displays, we will use this call
// Adafruit_ST7789 tft = Adafruit_ST7789(TFT_CS, TFT_DC, TFT_MOSI, TFT_SCLK, TFT_RST);
void testLines(uint16_t color)
{
tft.fillScreen(ST77XX_BLACK);
for(int16_t x = 0; x < tft.width(); x += 6)
{
tft.drawLine(0, 0, x, tft.height() - 1, color);
delay(0);
}
for(int16_t y = 0; y < tft.height(); y += 6)
{
tft.drawLine(0, 0, tft.width() - 1, y, color);
delay(0);
}
tft.fillScreen(ST77XX_BLACK);
for(int16_t x = 0; x < tft.width(); x += 6)
{
tft.drawLine(tft.width() - 1, 0, x, tft.height() - 1, color);
delay(0);
}
for(int16_t y = 0; y < tft.height(); y += 6)
{
tft.drawLine(tft.width() - 1, 0, 0, y, color);
delay(0);
}
tft.fillScreen(ST77XX_BLACK);
for(int16_t x = 0; x < tft.width(); x += 6)
{
tft.drawLine(0, tft.height() - 1, x, 0, color);
delay(0);
}
for(int16_t y = 0; y < tft.height(); y += 6)
{
tft.drawLine(0, tft.height() - 1, tft.width() - 1, y, color);
delay(0);
}
tft.fillScreen(ST77XX_BLACK);
for(int16_t x = 0; x < tft.width(); x += 6)
{
tft.drawLine(tft.width() - 1, tft.height() - 1, x, 0, color);
delay(0);
}
for(int16_t y = 0; y < tft.height(); y += 6)
{
tft.drawLine(tft.width() - 1, tft.height() - 1, 0, y, color);
delay(0);
}
}
void testDrawText(const char* text, uint16_t color)
{
tft.setCursor(0, 0);
tft.setTextColor(color);
tft.setTextWrap(true);
tft.print(text);
}
void testFastLines(uint16_t color1, uint16_t color2)
{
tft.fillScreen(ST77XX_BLACK);
for(int16_t y = 0; y < tft.height(); y += 5)
{
tft.drawFastHLine(0, y, tft.width(), color1);
}
for(int16_t x = 0; x < tft.width(); x += 5)
{
tft.drawFastVLine(x, 0, tft.height(), color2);
}
}
void testDrawRects(uint16_t color)
{
tft.fillScreen(ST77XX_BLACK);
for(int16_t x = 0; x < tft.width(); x += 6)
{
tft.drawRect(tft.width() / 2 - x / 2, tft.height() / 2 - x / 2, x, x, color);
}
}
void testFillRects(uint16_t color1, uint16_t color2)
{
tft.fillScreen(ST77XX_BLACK);
for(int16_t x = tft.width() - 1; x > 6; x -= 6)
{
tft.fillRect(tft.width() / 2 - x / 2, tft.height() / 2 - x / 2, x, x, color1);
tft.drawRect(tft.width() / 2 - x / 2, tft.height() / 2 - x / 2, x, x, color2);
}
}
void testFillCircles(uint8_t radius, uint16_t color)
{
for(int16_t x = radius; x < tft.width(); x += radius * 2)
{
for(int16_t y = radius; y < tft.height(); y += radius * 2)
{
tft.fillCircle(x, y, radius, color);
}
}
}
void testDrawCircles(uint8_t radius, uint16_t color)
{
for(int16_t x = 0; x < tft.width() + radius; x += radius * 2)
{
for(int16_t y = 0; y < tft.height() + radius; y += radius * 2)
{
tft.drawCircle(x, y, radius, color);
}
}
}
void testTriangles()
{
tft.fillScreen(ST77XX_BLACK);
uint16_t color = 0xF800;
int t;
int w = tft.width() / 2;
int x = tft.height() - 1;
int y = 0;
int z = tft.width();
for(t = 0; t <= 15; t++)
{
tft.drawTriangle(w, y, y, x, z, x, color);
x -= 4;
y += 4;
z -= 4;
color += 100;
}
}
void testRoundRects()
{
tft.fillScreen(ST77XX_BLACK);
uint16_t color = 100;
int i;
int t;
for(t = 0; t <= 4; t += 1)
{
int x = 0;
int y = 0;
int w = tft.width() - 2;
int h = tft.height() - 2;
for(i = 0; i <= 16; i += 1)
{
tft.drawRoundRect(x, y, w, h, 5, color);
x += 2;
y += 3;
w -= 4;
h -= 6;
color += 1100;
}
color += 100;
}
}
void tftPrintTest()
{
tft.setTextWrap(false);
tft.fillScreen(ST77XX_BLACK);
tft.setCursor(0, 30);
tft.setTextColor(ST77XX_RED);
tft.setTextSize(1);
tft.println("Hello World!");
tft.setTextColor(ST77XX_YELLOW);
tft.setTextSize(2);
tft.println("Hello World!");
tft.setTextColor(ST77XX_GREEN);
tft.setTextSize(3);
tft.println("Hello World!");
tft.setTextColor(ST77XX_BLUE);
tft.setTextSize(4);
tft.print(1234.567);
delay(1500);
tft.setCursor(0, 0);
tft.fillScreen(ST77XX_BLACK);
tft.setTextColor(ST77XX_WHITE);
tft.setTextSize(0);
tft.println("Hello World!");
tft.setTextSize(1);
tft.setTextColor(ST77XX_GREEN);
tft.print(3.1415926f, 6);
tft.println(" Want pi?");
tft.println(" ");
tft.print(8675309, HEX); // print 8,675,309 out in HEX!
tft.println(" Print HEX!");
tft.println(" ");
tft.setTextColor(ST77XX_WHITE);
tft.println("Sketch has been");
tft.println("running for: ");
tft.setTextColor(ST77XX_MAGENTA);
tft.print(millis() / 1000);
tft.setTextColor(ST77XX_WHITE);
tft.print(" seconds.");
}
void testMediaButtons()
{
// play
tft.fillScreen(ST77XX_BLACK);
tft.fillRoundRect(25, 10, 78, 60, 8, ST77XX_WHITE);
tft.fillTriangle(42, 20, 42, 60, 90, 40, ST77XX_RED);
delay(500);
// pause
tft.fillRoundRect(25, 90, 78, 60, 8, ST77XX_WHITE);
tft.fillRoundRect(39, 98, 20, 45, 5, ST77XX_GREEN);
tft.fillRoundRect(69, 98, 20, 45, 5, ST77XX_GREEN);
delay(500);
// play color
tft.fillTriangle(42, 20, 42, 60, 90, 40, ST77XX_BLUE);
delay(50);
// pause color
tft.fillRoundRect(39, 98, 20, 45, 5, ST77XX_RED);
tft.fillRoundRect(69, 98, 20, 45, 5, ST77XX_RED);
// play color
tft.fillTriangle(42, 20, 42, 60, 90, 40, ST77XX_GREEN);
}
void setup(void)
{
delay(1200);
Serial.begin(115200);
Serial.print("Hello! ST7789 TFT Test\n");
// Use this initializer if using a 1.8" TFT screen:
// tft.initR(INITR_BLACKTAB); // Init ST7735S chip, black tab
// OR use this initializer if using a 1.8" TFT screen with offset such as
// WaveShare: tft.initR(INITR_GREENTAB); // Init ST7735S chip, green
// tab
// OR use this initializer if using a 1.44" TFT:
// tft.initR(INITR_144GREENTAB); // Init ST7735R chip, green tab
// OR use this initializer if using a 0.96" 160x80 TFT:
// tft.initR(INITR_MINI160x80); // Init ST7735S mini display
// OR use this initializer if using a 0.96" 160x80 TFT with
// plug-in FPC (if you see the display is inverted!)
// tft.initR(INITR_MINI160x80_PLUGIN); // Init ST7735S mini display
// OR use this initializer if using a 1.3" or 1.54" 240x240 TFT:
// tft.init(240, 240); // Init ST7789 240x240
// OR use this initializer if using a 1.69" 280x240 TFT:
// tft.init(240, 280); // Init ST7789 280x240
// OR use this initializer if using a 2.0" 320x240 TFT:
tft.setSPISpeed(40 * 1000 * 1000);
tft.init(240, 320); // Init ST7789 320x240
pinMode(TFT_BL, OUTPUT);
digitalWrite(TFT_BL, HIGH);
// OR use this initializer if using a 1.14" 240x135 TFT:
// tft.init(135, 240); // Init ST7789 240x135
// OR use this initializer if using a 1.47" 172x320 TFT:
// tft.init(172, 320); // Init ST7789 172x320
// SPI speed defaults to SPI_DEFAULT_FREQ defined in the library, you can
// override it here. Note that speed allowable depends on chip and quality of
// wiring, if you go too fast, you may end up with a black screen some
// times, or all the time. tft.setSPISpeed(40000000);
Serial.println(F("Initialized"));
uint16_t time = millis();
tft.fillScreen(ST77XX_BLACK);
time = millis() - time;
Serial.println(time, DEC);
delay(500);
// large block of text
tft.fillScreen(ST77XX_BLACK);
testDrawText(
"Lorem ipsum dolor sit amet, consectetur adipiscing elit. Curabitur "
"adipiscing ante sed nibh tincidunt feugiat. Maecenas enim massa, "
"fringilla sed malesuada et, malesuada sit amet turpis. Sed porttitor "
"neque ut ante pretium vitae malesuada nunc bibendum. Nullam aliquet "
"ultrices massa eu hendrerit. Ut sed nisi lorem. In vestibulum purus a "
"tortor imperdiet posuere. ",
ST77XX_WHITE);
delay(1000);
// tft print function!
tftPrintTest();
delay(3000);
// a single pixel
tft.drawPixel(tft.width() / 2, tft.height() / 2, ST77XX_GREEN);
delay(500);
// line draw test
testLines(ST77XX_YELLOW);
delay(500);
// optimized lines
testFastLines(ST77XX_RED, ST77XX_BLUE);
delay(500);
testDrawRects(ST77XX_GREEN);
delay(500);
testFillRects(ST77XX_YELLOW, ST77XX_MAGENTA);
delay(500);
tft.fillScreen(ST77XX_BLACK);
testFillCircles(10, ST77XX_BLUE);
testDrawCircles(10, ST77XX_WHITE);
delay(500);
testRoundRects();
delay(500);
testTriangles();
delay(500);
testMediaButtons();
delay(500);
Serial.println("done");
delay(1000);
}
void loop()
{
tft.invertDisplay(true);
delay(500);
tft.invertDisplay(false);
delay(500);
}
I have checked existing issues, online documentation and the Troubleshooting Guide
- I confirm I have checked existing issues, online documentation and Troubleshooting guide.