Domestic FPGA Gaoyun GW1N-4 series development board evaluation - unboxing + hardware part 2

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Domestic FPGA Gaoyun GW1N-4 series development board evaluation - unboxing + hardware part 2 [Copy link]

 

I have been waiting for several days. The express was sent on the 6th and arrived yesterday afternoon. I didn’t have time to open the box. As soon as I came to the company today, I couldn’t wait to open it and take a look. Let’s take a look together:

Below are all the accessories

Here’s a close-up:

Then I found a problem. Is this board sent correctly?

As shown in the picture above, the silk screen clearly says V1.0, which is indeed different from the manual (as shown below). There is also a serial Flash missing. Do I have to revise the review I posted before? Just a joke (it should be one of the two pieces that were supplemented later?). I will try to see if there is any problem with the hardware later and see if I can find a Flash and solder it on.

Let’s get back to the topic. Today we will learn about the DK_MINI_GW1N-LV4LQ144C6I5_V1.0 peripheral chip.

Power supply:

The power supply is supplied by USB5V, and the DC-DC is transformed from 5V to 3.3V, 3V3, and 5V to 1.2V through the LDO chip. The current reaches 1A. The distribution diagram is as follows . I have a question. Xilinx FPGA has certain requirements for the power-on sequence, but Gaoyun FPGA does not seem to have any explanation?

Download circuit part:

The download circuit is USB to JTAG, or direct JTAG, with an external serial Flash, and can be programmed in three modes with MODE0 and MODE1. The schematic diagram is as follows:

Clock reset circuit:

The clock is connected to a 50Mhz crystal oscillator, and the reset is connected to a button. The schematic diagram is as follows:

16- way LED circuit:

One end of the LED is connected to 3.3V, and the other end is connected to bank0 of the FPGA. The pin is configured as an output pin to 0 and can light up the LED. Later we will do a running light experiment. The example is as follows:

Switch circuit:

The switch is 4 sliding switches connected to Bank2. Set the corresponding pins of Bank2 as input pins. The wave switch can get the corresponding logic change. Later, do an experiment of switch controlling LED flow together with the LED experiment. The example diagram is as follows:

Digital tube circuit:

The digital tube is a 4-digit digital tube connected to Bank0. Later we will link the switch and LED to do a small experiment. The example diagram is as follows:

GPIO circuit :

The GPIO circuit includes two groups of 8-pin, one group of 24-pin and one group of 32-pin, which are connected to the remaining I/O pins of the FPGA. We will use them in the stepper motor experiment later. The example is as follows:

This is the end of the hardware section. Now let’s move on to the software section.