HY-MiniSTM32V Dev Board

Description

Mini System board, with 3.2inch lcd display and micro sd card slot, All IO extend out. LCD is connected to FSMC, allowing fast updates

General information

Board details

  • Chip : STM32F103VC
  • Package: LQFP100
  • RAM : 48 kBytes
  • ROM : 256 kBytes
  • Speed : 72 Mhz
  • USARTs : 2
  • SPIs : 2
  • I2Cs : 2
  • USB : Yes
  • DACs : 2
  • SD Card : yes
  • 4 LED light, 2 LED indicator
  • Two GPIO buttons
  • A RESET Button
  • 2 mini-type USB socket, USB to RS232 and USB Device
  • 1 Micro SD card connector
  • JTAG / SWD debug interface (20pin)
  • RTC battery
  • Mini Board Size: 80*95mm
  • LCD Board: 62*95mm

LCD details

  • Resolution: 240×320
  • Colors: 65535
  • Type: TFT
  • LCD ControllerSSD1289
  • Interface: 16bit parallel
  • TouchScreen: Yes, Resistive
  • TouchScreen controller: ADS7843 or XPT2046
  • TouchScreen interface: SPI
  • Backlight: LED

LCD Pinout

PIN NO SYMBOL DESCRIPTION FUNCTION
1 5V 5V power supply When powered from 5V supply,
Pin 1 & Pin 2 as power input,
Pin 33 & Pin 34 provide 3.3V output.
2 GND Ground Power Ground
3 D0 Data lines D0 – D15
4 D1
5 D2
6 D3
7 D4
8 D5
9 D6
10 D7
11 D8
12 D9
13 D10
14 D11
15 D12
16 D13
17 D14
18 D15
19 CS LCD chip select Low active
20 RS Instruction/Data register selection RS = 1 : Instruction Register
RS = 0 : Data Register
21 WR Write WR = 0, RD = 1
22 RD Read WR = 1, RD = 0
23 RESET Reset the controller chip Low active
24 NC Not connect Not connect
25 BLVCC must be 5V Backlight VCC
26 BLGND Ground Backlight GND
27 BLCNT Backlight brightness adjustment Control the backlight brightness via PWM
28 TP_IRQ Touch screen interrupt Low level while the touch screen detects pressing
29 TP_CS Touch screen chip select Low active
30 TP_SCK Touch screen SPI clock connects to SPI SCK
31 TP_SI Touch screen data input connects to SPI MOSI
32 TP_SO Touch screen data output connects to SPI MISO
33 3.3V 3.3V power supply When powered from 3.3V supply,
Pin 33 & Pin 34 as power input,
Pin 1 & Pin 2 keep NC.
34 GND Ground Power Ground

Additional links & files

  • Information connecting it to STM32 ARM microcontroller via the FSMC (Flexible Static Memory Controller) and about porting and drawing using AdaFruit GFX  library can be found here.
  • Board schematic
  • LCD board schematic
  • Nice description and pinout with interactive image and link  to code for using various functionalities can be found here on the espruino page.