STM32_TFT_8bit

8bit TFT Library for Arduino_STM32(MAPLE Core)

I ported from here.
https://github.com/prenticedavid/MCUFRIEND_kbv

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Software requirement

• Core library
  https://github.com/rogerclarkmelbourne/Arduino_STM32

• Adafruit GFX Library
  https://github.com/adafruit/Adafruit-GFX-Library

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Wirering for 8bit Parallel TFT

Using GPIOA as Data Port
#define TFT_DATA GPIOA

TFT		STM32F103
LCD_RST	--	PB7
LCD_CS	--	PB6
LCD_RS	--	PB5
LCD_WR	--	PB4(*2)
LCD_RD	--	PB3(*2)
LCD_D0	--	PA0
LCD_D1	--	PA1
LCD_D2	--	PA2
LCD_D3	--	PA3
LCD_D4	--	PA4
LCD_D5	--	PA5
LCD_D6	--	PA6
LCD_D7	--	PA7
5V	--	5V(*1)
3.3V	--	3.3V(*1)
GND	--	GND

Using GPIOC as Data Port
#define TFT_DATA GPIOC

TFT		STM32F103
LCD_RST	--	PB7
LCD_CS	--	PB6
LCD_RS	--	PB5
LCD_WR	--	PB4(*2)
LCD_RD	--	PB3(*2)
LCD_D0	--	PC0
LCD_D1	--	PC1
LCD_D2	--	PC2
LCD_D3	--	PC3
LCD_D4	--	PC4
LCD_D5	--	PC5
LCD_D6	--	PC6
LCD_D7	--	PC7
5V	--	5V(*1)
3.3V	--	3.3V(*1)
GND	--	GND

(*1)When a regulator(It's often AMS1117) is mounted on the back, it's operated 5V.
When a regulator is NOT mounted on the back, it's operated 3.3V.

(*2)By several boards, This port is used as JTAG.
You need remap.
afio_cfg_debug_ports(AFIO_DEBUG_NONE)

Pin define is "STM32_TFT_8bit.h"

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Tested TFT

• ILI9325 2.4inch 240x320 TFT-Shield
• ILI9341 2.4inch 240x320 TFT-Shield
• ILI9342 2.4inch 240x320 TFT-Shield
• SPFD5408 2.4inch 240x320 TFT-Shield
• R61505 2.4inch 240x320 TFT-Shield
• ST7783 2.4inch 240x320 TFT-Shield
• LGDP4532 2.4inch 240x320 TFT-Shield
• R61509V 3.6inch 240x400 TFT-Shield
• ST7793 3.6inch 240x400 TFT-Shield
• ILI9481 3.5inch 320x480 TFT-Shield
• ILI9486 3.5inch 320x480 TFT-Shield
• RM68140 3.95inch 320x480 TFT-Shield
• ST7796 3.95inch 320x480 TFT-Shield
• OPEN-SMART ILI9225 TFT-Shield
• OPEN-SMART ILI9327 TFT-Shield
• OPEN-SMART ILI9340 TFT-Shield

I found that these display cannot follow high-speed GPIO-ON and GPIO-OFF.

• OPEN-SMART S6D1121 16Pin-Parallel
• OPEN-SMART ST7775 16Pin-Parallel
• OPEN-SMART ST7783 16Pin-Parallel
• OPEN-SMART R61509V 16Pin-Parallel
• OPEN-SMART ILI9488 16Pin-Parallel

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Setting your TFT's resolution

If your TFT's resolution is 320x480,
you have to set your TFT's resolution using tft.setResoution.

Example:

ID = tft.readID();
tft.setResolution(320, 480); // Set your resolution
Serial.print("Device ID: 0x"); Serial.println(ID, HEX);
tft.begin(ID);
uint32_t width = tft.width();
Serial.print("Width: "); Serial.println(width); // You will see 320
uint32_t height = tft.height();
Serial.print("Height: "); Serial.println(height); // You will see 480

If your TFT's resolution is 240x400,
you have to set your TFT's resolution and TFT's offset.

Example:

ID = tft.readID();
tft.setResolution(240, 400); // Set your resolution
tft.setOffset(32); // Set your offset
Serial.print("Device ID: 0x"); Serial.println(ID, HEX);
tft.begin(ID);
uint32_t width = tft.width();
Serial.print("Width: "); Serial.println(width); // You will see 240
uint32_t height = tft.height();
Serial.print("Height: "); Serial.println(height); // You will see 400

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• SPFD5408 + ILI9486
  

• ILI9325 + ILI9481
  

• ILI9341 + ST7793
  

• ILI9342 + R61509V
  

• ST7783 + ST7796

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F4 board support

If you want more faster, plase use this.
F4 board is very fast.

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JPEG Viewer

Viewer of a JPEG file in the SD card.

Software requirement

• Arduino FAT16/FAT32 Library
  https://github.com/greiman/SdFat

• JPEG decoder library
  https://github.com/Bodmer/JPEGDecoder

Wirering for TFT built-in SD-CARD Reader

TFT		STM32F103
SD_SS	--	PB12
SD_SCK	--	PB13
SD_DI	--	PB15
SD_DO	--	PB14
5V	--	5V(*)
3.3V	--	3.3V(*)
GND	--	GND

*When a regulator(It's often AMS1117) is mounted on the back, it's operated 5V.
*When a regulator is NOT mounted on the back, it's operated 3.3V.

How to use

Copy JPEGS file to your SD-CARD.
*The biggest length of the JPEG file name is 32 character.
Wire TFT built-in SD-CARD Reader to STM32.
Execute JpegView_240x320_SMT32.