PrSOC
Hardware Design
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Hardware Design Extension boards

A specific extension board is developed to have nice laboratories for the students.

Current schematic of the board.

3D view of the PrSOC system.

Connectors & i2c addresses

LCD+VGA with different sizes supported

ER-TFT043-3-3023-2469

ER-TFTM043-4-2781-8080-2765-3.3V-3023-2559-4296

          

ER-TFT035-3-2034-3275-3127

TX06

  • 240x320 pixels

TX07-D09VM1CAB

  • 240x320 pixels
  • Resistive touch screen

Joystick

A joystick as we can found PS-2 extension for players is provided near the LCD. With X & Y analog movement it could be use for games on the display or to control the Pan Tilt system with camera.

The connector is 5 pins, +5V powered.

Joystick connections
Pin Nb Signals GPIO FPGA    
1 Gnd        
2 3.3V .. 5V (Vcc)        
3 VRx (Vertical position)  

 

Pos. High -> Vcc

 

 

Pos. Low -> Gnd

4 VRy (Horizontal position)   Gnd <--> Vcc Gnd <- Pos. Left  pos. Right -> Vcc
5 Sw (Switch), needs a Pull_Up nSW Connected to Gnd when pressed    

R between Vcc and Gnd = 4 k

The resistors are 10k. The idle position is Vcc/2.

 

  • ​

 

The 2 analog outputs are connected to an ADC with SPI connection to the FPGA: MCP3204T

The ADC has 4 input, 2 Joystick modules are connected to one ADC chip.

ADC connections for Joystick
Input Joystick
Ch0 Left  : Vx_L
Ch1 Left  : Vy_L
Ch2 Right: Vx_R
Ch3 Right: Vy_R

The ADC converter is connected through the SPI interface.

ADC control by SPI
Signals FPGA Pin

SPI_AD_CS_n

  TBD
SPI_AD_SCLK   TBD
SPI_AD_MOSI   TBD
SPI_AD_MISO   TBD

 

 

 

 


PAL camera

The small camera is mounted on the Pan tilt and the PAL output is decoded by a video decoder TW9912 from Intersil.

The output is a digital stream in YCrCb format 4:2:2.

Thermal Camera

A nice module with thermal captors allows to capturerevolutionary longwave infrared (LWIR) image

Bluetooth extension

WiFi extension (ESP8266)

Camera module extension

  •  

LEDs

  • Extension with WS2812B 3colors RGB LEDs
  • 4 pins device
  • +5V Vcc and Din level !!
  • Serial communication with pulse width modulation for Reset, 0 and 1
  •  
  • Transfert order RGB MSb first: G7..G0 R7..R0 B7..B0
  • Bit transfers timing
    Timing Name Time Tolerance
    T0H 0.4  us +/- 150 ns
    T0L 0.85 us +/- 150 ns
    T1H 0.8  us +/- 150 ns
    T1L 0.45 us +/- 150 ns
    TReset > 50us  
  •  WS2812 datasheet 

IR-sensor

OneWire unique ID chip 

GPIO Extension connectors

  • 40 pins
  • 2 rows
  • 2.54mm pitch

40 pins connector GPIO 0(J2) Top View

  Name      GPIO_0       pin   pin       GPIO_0     Name  
  nI2C_Int  GPIO_0_b0 1 2  GPIO_0_b1 PIROut PIR
  Cam_PAL_VGA_SDA  GPIO_0_b2 3 4  GPIO_0_b3 Cam_PAL_VGA_SCL i2c
  PAL_VD_HSO  GPIO_0_b4 5 6  GPIO_0_b5 PAL_VD_VSO  
  PAL_VD7  GPIO_0_b6 7 8  GPIO_0_b7 PAL_VD6  
  PAL_VD5  GPIO_0_b8 9 10  GPIO_0_b9 Board_ID OneWire
     +5V 11 12  Gnd    
  PAL_VD3  GPIO_0_b10 13 14  GPIO_0_b11 PAL_VD4  
  PAL_VD1  GPIO_0_b12 15 16  GPIO_0_b13 PAL_VD2  
  PAL_VD_CLKO  GPIO_0_b14 17 18  GPIO_0_b15 PAL_VD0  
  Servo0  GPIO_0_b16 19 20  GPIO_0_b17 Cam_PixClk  
  Servo1  GPIO_0_b18 21 22  GPIO_0_b19 Cam_LV  
  From_ESP_TxD  GPIO_0_b20 23 24  GPIO_0_b21 Cam_FV  
  To_ESP_RxD  GPIO_0_b22 25 26  GPIO_0_b23 Cam_SysClk  
  SPI_MISO  GPIO_0_b24 27 28  GPIO_0_b25 SPI_Ena_n  
     +3.3V 29 30  Gnd    
  J0_SPI_CS_n  GPIO_0_b26 31 32  GPIO_0_b27 SPI_Clk  
  J0_SPI_MOSI  GPIO_0_b28 33 34  GPIO_0_b29 SPI_MOSI  
  J0_SPI_MISO  GPIO_0_b30 35 36  GPIO_0_b31 SPI_DAT  
  J0_SPI_CLK  GPIO_0_b32 37 38  GPIO_0_b33 PIO_SCL  
  LED_BGR  GPIO_0_b34 39 40  GPIO_0_b35 PIO_SDA  

 

40 pins connector GPIO 1(J1) Top View

  Name      GPIO_1       pin   pin       GPIO_1     Name  
  Video_R0  GPIO_1_35 40 39  GPIO_1_b34 Video_R1  
  Video_R2  GPIO_1_33 38 37  GPIO_1_b32 Video_R3  
  Video_R4  GPIO_1_31 36 35  GPIO_1_b30 Video_R5  
  Video_R6  GPIO_1_29 34 33  GPIO_1_b28 Video_R7  
  Video_G0  GPIO_1_27 32 31  GPIO_1_b26 Video_G1  
     +5V 30 29  Gnd    
  Video_G2  GPIO_1_b25 28 27  GPIO_1_b24 Video_G3  
  Video_G4  GPIO_1_b23 26 25  GPIO_1_b22 Video_G5  
  Video_G6  GPIO_1_b21 24 23  GPIO_1_b20 Video_G7  
  Video_B0  GPIO_1_b19 22 21  GPIO_1_b18 Video_B1  
  Video_B2  GPIO_1_b17 20 19  GPIO_1_b16 Video_B3  
  Video_B4  GPIO_1_b15 18 17  GPIO_1_b14 Video_B5  
  Video_B6  GPIO_1_b13 16 15  GPIO_1_b12 Video_B7  
  Video_Clk  GPIO_1_b11 14 13  GPIO_1_b10 Video_VSync  
     +3.3V 12 11  Gnd    
  Board_ID  GPIO_1_b9 10 9  GPIO_1_b8 Video_HSync  
  BLT_RxD  GPIO_1_b7 8 7  GPIO_1_b6 LCD_DispEn  
  BLT_TxD  GPIO_1_b5 6 5  GPIO_1_b4 LCD_DE  
  TS_SDA  GPIO_1_b3 4 3  GPIO_1_b2 nReset  
  TS_SCL  GPIO_1_b1 2 1  GPIO_1_b0 LCD_nPintDAV  

 

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