The PYNQ-Z2 provides a 50 MHz clock to the Zynq PS_CLK input, which is used to generate the clocks for each of the PS subsystems. The 50 MHz input allows the processor to operate at a maximum frequency of 650 MHz. The PYNQ-Z2 also has an external 125 MHz reference clock connected to pin H16 of the PL.

2022年5月26日 · I was tired to check the PYNQ Z2 schematics to find the Zynq IO label every time I need to use a new board pin, so I decided to create a pinout for the PYNQ Z2 of the kind of those for Arduinos, ESP32s, etc.

2022年10月18日 · 这里我们需要用到的是 gpio gpio_open(int pin) ， void gpio_set_direction(gpio device, int direction) ， void gpio_write(gpio device, unsigned int value) ， unsigned int gpio_read(gpio device)

2019年6月30日 · pynq-z2: pynq-z2是另一个型号的PYNQ开发板，它也搭载了Xilinx Zynq-7000系列的SoC。 虽然具体型号的SoC可能会有所不同，但 pynq -z 2 同样提供了丰富的外设接口和板载资源。

2019年11月26日 · PYNQ平台作为结合了Xilinx Zynq SoC和Python编程语言的新型开发环境，为硬件加速和软件开发提供了灵活的接口。本文首先概述了PYNQ平台及其硬件加速的基础，接着详细探讨了该平台在神经网络优化、性能调优以及具体...

2020年8月13日 · By combining the information present in the constraint file and the schematic (as suggested by @rock ) you can easily map the default configuration with the pins (some day ago I did not look at the schematic well enough to realize it). Even just the schematic is enough to map the pins properly.

PYNQ Input/Output (I/O) The PYNQ board has a number of sensors (buttons, switches) and actuators (LEDs), as well as a number of general-purpose input/output (I/O) (GPIO) pins. The hardware I/O pins include the Rasberry PI and Arduino headers. The 4 green LEDs (LD0..LED3) and 2 color LEDs (LD4-5R/G/B) are output pins.

PYNQ-Z2调试笔记：使用PL的硬件IP定制overlay实现加速（How to accelerate a function with PYNQ） 本篇主要介绍，使用PYNQ板上可编程逻辑部分的IP核定制overlay，并与python自带的函数进行比较，以突出可编程逻辑部分的加速优势。

The pynq.gpio module is a driver for reading and writing PS GPIO pins on a board. PS GPIO pins are not connected to the PL. class pynq.gpio. GPIO ( gpio_index , direction ) [source] ¶

2021年4月9日 · From the schematics of the board, the MIO 14 & 15 pins are connected to the FTDI chip. From UG585-TRM of Zynq “Table 2-4 MIO-at-a-Glance” below, UART 0 can be set to pins 10-11, 14-15, and others. That means that for this particular board, we should only use pins 14-15 for UART0, right?