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reference:programmable-logic:pynq-z1:reference-manual [2019/07/31 19:36]
Arthur Brown [16 Pmod Ports]
reference:programmable-logic:pynq-z1:reference-manual [2019/07/31 19:40] (current)
Arthur Brown [17 Arduino/chipKIT Shield Connector]
Line 571: Line 571:
 The PYNQ-Z1 can be connected to standard Arduino and chipKIT shields to add extended functionality. Special care was taken while designing the PYNQ-Z1 to make sure it is compatible with the majority of Arduino and chipKIT shields on the market. The shield connector has 49 pins connected to the Zynq PL 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 six (labeled AN6-11) can be used as differential analog inputs. The PYNQ-Z1 can be connected to standard Arduino and chipKIT shields to add extended functionality. Special care was taken while designing the PYNQ-Z1 to make sure it is compatible with the majority of Arduino and chipKIT shields on the market. The shield connector has 49 pins connected to the Zynq PL 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 six (labeled AN6-11) can be used as differential analog inputs.
  
-**Note: The PYNQ-Z1 is not compatible with shields that output 5V digital or analog signals. Driving pins on the PYNQ-Z1 shield connector above 5V may cause damage to the Zynq.** ​+**Note: The PYNQ-Z1 is not compatible with shields that output 5V digital or analog signals. Driving pins on the PYNQ-Z1 shield connector above 3.4V may cause damage to the Zynq.** ​
  
 {{ pynq-z1-shield.png?​direct&​600 |Figure 17.1. Shield connector pin diagram.}} {{ pynq-z1-shield.png?​direct&​600 |Figure 17.1. Shield connector pin diagram.}}