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1300 Henley Court Pullman, WA 99163 509.334.6306 www.digilentinc.com chipKIT™ Pmod Shield-Uno™ Reference Manual Revised February 8, 2013 This manual applies to the chipKIT Pmod Shield-Uno rev. A Overview The chipKIT Pmod Shield-Uno is an input/output expansion board for use with the chipKIT Uno32™ and chipKIT uC32™. It provides the additional circuitry and connectors to allow Digilent peripheral modules (Pmods™) to be used with the Uno32 and uC32. The Pmod Shield-Uno has five 2x6 Digilent Pmod connectors. It also provides access to the I/O connectors available 2 on the Uno32 as well as connecting to the I C bus supported by the Uno32 and uC32. The Pmod Shield-Uno has the same form factor as the Uno32 and uC32 boards. Features include: • Five 2x6 Digilent Pmod connectors. • One 6-pin header connector for SPI. • One I C daisy chain connector. • Four user LEDs. • Standard chipKIT Shield connectors. 2 The chipKIT Pmod Shield-Uno. 1 Functional Description The Pmod Shield-Uno is designed to be used with the chipKIT Uno32 board. When used in combination, the two TM boards provide the necessary supporting hardware and connectors to make use of most Digilent Pmods . The rest of this document will only reference the Uno32, however, the shield can also be used with the chipKIT uC32. DOC#: 502-229 Copyright Digilent, Inc. All rights reserved. Other product and company names mentioned may be trademarks of their respective owners. Page 1 of 7 chipKIT™ Pmod Shield-Uno™ Reference Manual The Pmod Shield-Uno has the following connectors: J1 & J3: Digital Signal Pass-Through Connectors This connector provides most of the signals used by the Uno32 board to the Pmod Shield-Uno board. The remaining signals are passed through the Pmod Shield-Uno. J6: SPI #2 Connector This connector provides access to the SPI signals MISO, MOSI, SCK, and SS. JA-JE: Digilent Pmod Connectors These connectors provide access to the signals of the Uno32 in a form factor which readily allows Digilent Pmods to be connected. 2 J2: I C #1 Daisy Chain Connector 2 This is a 2x4 pin header connector that provides access to the I C signals SDA and SCL as well as power from the 2 2 3.3V power bus and ground. This can be used to extend the I C bus off of the board and to power external I C 2 devices. Digilent has cables and a selection of I C peripheral modules that can be accessed using this connector. J4: Analog Signal Pass-Through Connector This connector passes the analog input pins on the Uno32 through the Pmod Shield-Uno board. J5: Power Pass-Through Connector This connector passes the power connector from the Uno32 through the Pmod Shield-Uno board, and powers the Pmod Shield-Uno from the Uno32. I2C Busses and Connectors 2 2 The Inter-Integrated Circuit (I C) Interface provides a medium speed (100K or 400K bps) synchronous serial 2 communications bus. The I C interface provides master and slave operation using either 7 bit or 10 bit device addressing. Each device is given a unique address, and the protocol provides the ability to address packets to a specific device or to broadcast packets to all devices on the bus. Refer to the Microchip PIC32MX3XX data sheet 2 and the PIC32 Family Reference Manual for detailed information on configuring and using the I C interface. 2 The PIC32MX320 microcontroller on the Uno32 provides for two independent I C interfaces. The Pmod Shield-Uno 2 2 2 is designed to provide access to both of these interfaces I C #1 (SCL1, SDA1) and I C #2 (SCL2, SDA2). I C #1 is the 2 bus accessed through the standard chipKIT Wire library. Connector J2 provides access to I C port #1 while access to 2 I C port #2 is available on several of the connectors of the Pmod Shield-Uno. 2 2 Connector J2 can be used to extend the I C busses off of the board to connect to external I C devices. This is a 2 standard 2x4 pin header connector with 0.100” spaced pins. It provides access to the I C signals, SCL and SDA, plus 2 VCC3V3 and ground. The VCC3V3 can be used to power external I C devices. 2 The I C bus uses open collector drivers to allow multiple devices to drive the bus signals. This means that pull-up resistors must be provided to supply the logic high state for the signals. The Pmod Shield-Uno provides 2.2Kohm 2 pull-up resistors on I C #1. Copyright Digilent, Inc. All rights reserved. Other product and company names mentioned may be trademarks of their respective owners. Page 2 of 7 chipKIT™ Pmod Shield-Uno™ Reference Manual Generally, only one set of pull-ups are used on the bus. Jumpers JP10 and JP11 can be used to disable the on-board 2 2 pull-ups on I C #1 if a different value is needed or some other device on the bus is providing the pull-ups or if I C #1 isn’t being used and the pull-ups are interfering with the use of the pins. The on-board pull-ups are enabled by install shorting blocks on JP10 and JP11. Removing the shorting blocks disables the pull-ups. 2 Digilent has several small I/O modules available that can be connected using the I C connector. These include a 3axis accelerometer, 4-channel, 12-bit A/D converter, serial character LCD panel, 3-axis gyroscope, real-time clock/calendar, and an I/O expander. 3 SPI Connector The SPI connector pins are as follows: Pin 1 (MISO), Pin 3 (SCK), Pin 4 (MOSI), and Pin 5 (SS). These signals also appear on connector J8 of the Uno32. Jumpers JP5 and JP7 on the Uno32 are used to select whether the Uno32 operates as a Master (transmit on MOSI, receive on MISO) or a Slave (transmit on MISO, receive on MOSI) device. The shorting blocks on JP5 and JP7 are normally placed in the Master position for the Uno32 to function as an SPI master. Also, jumper JP4 on the Uno32 is used to select PWM output (in RD4 position) or the SPI SS function on Pin 5 (in RG9 position). CHIPKIT and the CHIPKIT Logo are trademarks or registered trademarks of Microchip Technology Incorporated in the U.S. and other countries, and are used under license. Copyright Digilent, Inc. All rights reserved. Other product and company names mentioned may be trademarks of their respective owners. Page 3 of 7 chipKIT™ Pmod Shield-Uno™ Reference Manual Appendix: chipKIT Pmod Shield-Uno Pinout Tables J1 Pins Uno32 Pin # PIC32 Pin # 8 34 9 35 10 10 36 44 53 51 45 8 52 54 11 6 37 55 12 5 38 13 39 40 42 41 35 4 31 32 16 15 Pin J1-01 J1-02 J1-03 J1-04 J1-05 J1-05 J1-06 J1-07 or J1-09 J1-08 J1-09 or J1-07 J1-10 J1-11 J1-12 J1-14 J1-15 J1-16 Signal IC3/PMCS2/PMA15/INT3/RD10 PMRD/CN14/RD5 OC4/RD3 IC4/PMCS1/PMA14/INT4/RD11 SS2/PMA2/CN11/RG9 PMWR/OC5/IC5/CN13/RD4 CN15/RD6 SDO2/PMA3/CN10/RG8 Notes selected by JP4 selected by JP4 selected by JP5/JP7 CN16/RD7 SDI2/PMA5/CN8/RG7 selected by JP7/JP5 U1RTS/BCLK1/SCK1/INT0/RF6 SCK2/PMA5/CN8/RG6 PMA9/U2RX/SDA2/CN17/RF4 PMA8/U2TX/SCL2/CN18/RF5 PGED1/PMA6/AN0/VREF+/CVREF+/CN2/RB0 PGC1/AN1/VREF-/CVREF-/CN3/RB1 J3 Pins Uno32 Pin # PIC32 Pin # Pin 0 26 1 27 2 28 3 29 4 30 5 31 6 32 7 33 34 60 33 61 42 62 46 63 59 64 49 1 50 2 43 3 J3-01 J3-02 J3-03 J3-04 J3-05 J3-06 J3-07 J3-08 J3-09 J3-10 J3-11 J3-12 J3-13 J3-14 J3-15 J3-16 Signal U1RX/SDI1/RF2 PMD0/RE0 U1TX/SDO1/RF3 PMD1/RE1 IC1/RTCC/INT1/RD8 PMD2/RE2 OC1/RD0 PMD3/RE3 RF1 PMD4/RE4 OC2/RD1 PMD5/RE5 OC3/RD2 PMD6/RE6 IC2/U1CTS/INT2/RD9 PMD7/RE7 Copyright Digilent, Inc. All rights reserved. Other product and company names mentioned may be trademarks of their respective owners. Notes selected by JP4 selected by JP4 selected by JP5/JP7 selected by JP7/JP5 Page 4 of 7 chipKIT™ Pmod Shield-Uno™ Reference Manual JA Pins Uno32 Pin # PIC32 Pin # 26 27 28 29 60 61 62 63 30 31 32 33 Pin JA-01 JA-02 JA-03 JA-04 JA-05 JA-06 JA-07 JA-08 JA-09 JA-10 JA-11 JA-12 64 1 2 3 Signal Notes PMD0/RE0 PMD1/RE1 PMD2/RE2 PMD3/RE3 GND VCC 3V3 / 5V0 PMD4/RE4 PMD5/RE5 PMD6/RE6 PMD7/RE7 GND VCC 3V3 / 5V0 select with JPA select with JPA JB Pins Uno32 Pin # PIC32 Pin # 7 1 0 38 43 33 34 35 36 34 10 37 Pin JB-01 JB-02 JB-03 JB-04 JB-05 JB-06 JB-07 JB-08 JB-09 JB-10 JB-11 JB-12 54 53 52 55 Signal Notes PMD0/RE0 PMD1/RE1 PMD2/RE2 PMD3/RE3 GND VCC 3V3 / 5V0 PMD4/RE4 PMD5/RE5 PMD6/RE6 PMD7/RE7 GND VCC 3V3 / 5V0 select with JPB select with JPB J2 Pins (I2C) Uno32 Pin # PIC32 Pin # 37 37 36 36 Pin J2-01 J2-02 J2-03 J2-04 J2-05 J2-06 J2-07 J2-08 Signal Notes SCL1/RG2 SCL1/RG2 SDA1/RG3 SDA1/RG3 GND GND VDD VDD Copyright Digilent, Inc. All rights reserved. Other product and company names mentioned may be trademarks of their respective owners. Page 5 of 7 chipKIT™ Pmod Shield-Uno™ Reference Manual J4 Pins Uno32 Pin # PIC32 Pin # A00/14 A06/20 A01/15 A07/21 A02/16 A08/22 A03/17 A09/23 A04/18 14 13 11 12 21 22 23 24 27 36 28 29 37 30 A10/24 A05/19 A11/25 Pin J4-01 J4-02 J4-03 J4-04 J4-05 J4-06 J4-07 J4-08 J4-09 J4-09 J4-10 J4-11 J4-11 J4-12 Signal C2IN-/AN2/SS1/CN4/RB2 C2IN+/AN3/CN5/RB3 C1IN-/AN4/CN6/RB4 C1IN+/AN5/CN7/RB5 U2CTS/C1OUT/AN8/RB8 PMA7/C2OUT/AN9/RB9 TMS/CVREFOUT/PMA13/AN10/RB10 TDO/PMA12/AN11/RB11 TCK/PMA11/AN12/RB12 SDA1/RG3 TDI/PMA10/AN13/RB13 PMALH/PMA1/U2RTS/AN14/RB14 SCL1/RG2 PMALL/PMA0/AN15/OCFB/CN12/RB15 Notes selected by JP6 selected by JP6 selected by JP8 selected by JP8 JC Pins Uno32 Pin # PIC32 Pin # 10 13 8 6 5 4 2 A07/21 A01/15 A06/20 42 12 11 13 Pin JC-01 JC-02 JC-03 JC-04 JC-05 JC-06 JC-07 JC-08 JC-09 JC-10 JC-11 JC-12 Signal SS2/PMA2/CN11/RG9 MOSI MISO SCK2/PMA5/CN8/RG6 GND VCC 3V3 / 5V0 IC1/RTCC/INT1/RD8 C1IN+/AN5/CN7/RB5 C1IN-/AN4/CN6/RB4 C2IN+/AN3/CN5/RB3 GND VCC 3V3 / 5V0 Notes selected by JP4 select with JPC select with JPC JD Pins Uno32 Pin # PIC32 Pin # A02/16 40 39 A05/19 21 32 31 29 Pin Signal JD-01 JD-02 JD-03 JD-04 JD-05 U2CTS/C1OUT/AN8/RB8 PMA8/U2TX/SCL2/CN18/RF5 PMA9/U2RX/SDA2/CN17/RF4 PMALH/PMA1/U2RTS/AN14/RB14 GND Copyright Digilent, Inc. All rights reserved. Other product and company names mentioned may be trademarks of their respective owners. Notes Page 6 of 7 chipKIT™ Pmod Shield-Uno™ Reference Manual 42 41 3 5 16 15 46 49 JD-06 JD-07 JD-08 JD-09 JD-10 JD-11 JD-12 VCC 3V3 / 5V0 PGED1/PMA6/AN0/VREF+/CVREF+/CN2/RB0 PGC1/AN1/VREF-/CVREF-/CN3/RB1 OC1/RD0 OC2/RD1 GND VCC 3V3 / 5V0 select with JPD select with JPD JE Pins Uno32 Pin # PIC32 Pin # A00/14 6 8 A08/22 14 50 44 22 A04/18 9 35 A10/24 27 51 45 28 Pin JE-01 JE-02 JE-03 JE-04 JE-05 JE-06 JE-07 JE-08 JE-09 JE-10 JE-11 JE-12 Signal C2IN-/AN2/SS1/CN4/RB2 OC3/RD2 IC3/PMCS2/PMA15/INT3/RD10 PMA7/C2OUT/AN9/RB9 GND VCC 3V3 / 5V0 TCK/PMA11/AN12/RB12 OC4/RD3 IC4/PMCS1/PMA14/INT4/RD11 TDI/PMA10/AN13/RB13 GND VCC 3V3 / 5V0 Notes select with JPD select with JPD J6 Pins (SPI) Uno32 Pin # PIC32 Pin # 5 5 13 6 10 4 6 8 Pin JE-01 JE-02 JE-03 JE-04 JE-05 JE-06 Signal MISO Unconnected SCK2/PMA5/CN8/RG6 MOSI SS2/PMA2/CN11/RG9 GND Copyright Digilent, Inc. All rights reserved. Other product and company names mentioned may be trademarks of their respective owners. Notes selected by JP4 Page 7 of 7