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reference:programmable-logic:arty-s7:reference-manual [2018/07/13 18:52]
James Colvin [9 Arduino/chipKIT Shield Connector]
reference:programmable-logic:arty-s7:reference-manual [2019/07/31 19:33] (current)
Arthur Brown [8 Pmod Connectors]
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 Pmod connectors are 2x6, right-angle,​ 100-mil spaced female connectors that mate with standard 2x6 pin headers. Each 12-pin Pmod connector provides two 3.3V VCC signals (pins 6 and 12), two Ground signals (pins 5 and 11), and eight logic signals, as shown in Figure 8.1. The VCC and Ground pins can deliver up to 1A of current, but care must be taken not to exceed any of the power budgets of the onboard regulators or the external power supply (these are described in the "Power supplies"​ section). ​ Pmod connectors are 2x6, right-angle,​ 100-mil spaced female connectors that mate with standard 2x6 pin headers. Each 12-pin Pmod connector provides two 3.3V VCC signals (pins 6 and 12), two Ground signals (pins 5 and 11), and eight logic signals, as shown in Figure 8.1. The VCC and Ground pins can deliver up to 1A of current, but care must be taken not to exceed any of the power budgets of the onboard regulators or the external power supply (these are described in the "Power supplies"​ section). ​
 +
 +**Warning:​** //Since the Pmod pins are connected to Spartan-7 FPGA pins using a 3.3V logic standard, care should be taken not to drive these pins over 3.4V.//
  
 Digilent produces a large collection of Pmod accessory boards that can attach to the Pmod expansion connectors to add ready-made functions like A/D’s, D/A’s, motor drivers, sensors, and other functions. See www.digilentinc.com for more information. Digilent produces a large collection of Pmod accessory boards that can attach to the Pmod expansion connectors to add ready-made functions like A/D’s, D/A’s, motor drivers, sensors, and other functions. See www.digilentinc.com for more information.
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 The Arty S7 can be connected to standard Arduino and chipKIT shields to add extended functionality. Special care was taken while designing the Arty S7 to make sure it is compatible with the majority of Arduino and chipKIT shields on the market. The shield connector has 45 pins connected to the FPGA for general purpose Digital I/O. Due to the flexibility of FPGAs, it is possible to use these pins for just about anything including digital read/write, SPI connections,​ UART connections,​ I2C connections,​ and PWM. Six of these pins (labeled AN0-AN5) can also be used as single-ended analog inputs with an input range of 0V-3.3V, and another four (labeled AN6-9) can be used as differential analog input pairs with an input range of 0V-1.0V. The Arty S7's shield connector is implemented on headers J1, J2, J3, J5, J6, and J8. For more information on how the shield connector pins are connected to the FPGA, refer to the Arty S7 schematic and master XDC file, available through the [[start|Arty S7 Resource Center]]. The Arty S7 can be connected to standard Arduino and chipKIT shields to add extended functionality. Special care was taken while designing the Arty S7 to make sure it is compatible with the majority of Arduino and chipKIT shields on the market. The shield connector has 45 pins connected to the FPGA for general purpose Digital I/O. Due to the flexibility of FPGAs, it is possible to use these pins for just about anything including digital read/write, SPI connections,​ UART connections,​ I2C connections,​ and PWM. Six of these pins (labeled AN0-AN5) can also be used as single-ended analog inputs with an input range of 0V-3.3V, and another four (labeled AN6-9) can be used as differential analog input pairs with an input range of 0V-1.0V. The Arty S7's shield connector is implemented on headers J1, J2, J3, J5, J6, and J8. For more information on how the shield connector pins are connected to the FPGA, refer to the Arty S7 schematic and master XDC file, available through the [[start|Arty S7 Resource Center]].
  
-**Note: The Arty S7 is not compatible with shields that output 5V digital or analog signals. Driving pins on the Arty S7 shield connector above 5V may cause damage to the FPGA.** +**Warning:** //The Arty S7 is not compatible with shields that output 5V digital or analog signals. Driving pins on the Arty S7 shield connector above 3.4V may cause damage to the FPGA.//
  
 Figure 9.1 diagrams the pins found on the shield connector of the Arty S7. Figure 9.1 diagrams the pins found on the shield connector of the Arty S7.