chipKIT WiFire board

610t edited this page Jun 18, 2018 · 15 revisions

WiFire

Digilent chipKIT Wi-Fire board (schematics, manual, Eagle files) is compatible with Arduino platform, but based on Microchip PIC32MZ microcontroller.

Features:

  • PIC32MZ microcontroller 200 MHz (MIPS architecture, DSP)
  • 43 available i/o pins, 5V tolerant
  • 12 analog inputs, 0V to 3.3V voltage range
  • Microchip MRF24WG0MA WiFi module at SPI4
  • Micro SD card connector at SPI3
  • On-board oscillator 24 MHz
  • USB 2.0 OTG controller with USB and micro-USB connectors
  • Mini-USB connector with FTDI convertor to UART4
  • Four user LEDs
  • Two user buttons
  • Reset button
  • Potentiometer
  • JTAG and ICSP ports
  • 3.3V operating voltage
  • Power select switch: from mini-USB, from USB OTG or from external source
  • External power connector, 7V to 15V input voltage recommended, 30V max

Memory:

  • 2 Mbytes of program Flash memory
  • 160 kbytes of additional boot Flash memory
  • 512 kbytes of RAM

A rich set of peripheral functions is available: UART, SPI, I2C, I2S, ADC, timers. Two internal oscillators available: 8 MHz and 32 kHz.

Signals

Pinout

Connectors J6, J7, J10

Function PIC32 Signal Signal PIC32 Function
SCL RA2 (59) SCL2
SDA RA3 (60) SDA2
RA9 (28) 41 42/A RA10 (29) AREF
SCK6 RD15 (48) 40 GND --
RD14 (47) 39 13 RG6 (10) SCK2, LED1
RD12 (79) 38 12 RF0 (85)
SCL2 RA2 (59) 37 11 RD11 (70)
RF1 (86) 36 10 RG9 (16)
RC1 (6) 35 9 RD3 (78)
RD5 (82) 34 8 RA14 (66) SCL1
RE7 (5) 33 7 RE9 (19)
RE6 (4) 32 6 RD2 (77)
RE5 (3) 31 5 RD1 (76) SCK1
RE4 (100) 30 4 RA3 (60) SDA2
RE3 (99) 29 3 RD0 (71)
RE2 (98) 28 2 RE8 (18)
RE1 (94) 27 1 RF8 (58) SCL3
RE0 (91) 26 0 RF2 (57) SDA3

Connector J8

Function PIC32 Signal Signal PIC32 Function
RB5 (20) 14/A0 20/A6 RB3 (22)
RB9 (33) 15/A1 21/A7 RB2 (23)
RC2 (7) 16/A2 22/A8 RB4 (21)
RB15 (44) 17/A3 23/A9 RB1 (24)
SDA4 RG7 (11) 18/A4 24/A10 RB8 (32)
SCL4 RG8 (12) 19/A5 25/A11 RB0 (25)

Peripheral control

Signal PIC32 Function
13 RG6 (10) LED1, SCK2
43 RD4 (81) LED2
44 RB11 (35) LED3
45 RG15 (1) LED4
46 RA5 (2) Button 1
47 RA4 (61) Button 2
48/A12 RB13 (42) Potentiometer
49/A13 RB12 (41) 1/11 of input voltage
50 RD13 (80) 5V power enable
51 RB14 (43) SD card SCK3
52 RC3 (8) SD card SS3
53 RB10 (34) SD card SDI3
54 RC4 (9) SD card SDO3
55 RD10 (69) WiFi SCK4
56 RD9 (68) WiFi SS4
57 RF5 (65) WiFi SDI4
58 RG0 (88) WiFi SDO4
59 RA15 (67) WiFi INT4
60 RG1 (87) WiFi hibernate
61 RF4 (64) WiFi reset
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