【Sipeed Tang Primer 25K】First step to get started: Light up and say hello world

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【Sipeed Tang Primer 25K】First step to get started: Light up and say hello world [Copy link]

 

I really like SiPEED’s packaging box, which is as round as the previous series and feels good.

This time, I applied for a trial of TangPrimer25K, the FPGA model is Gowin's GW5A-LV25MG121, which uses advanced 22nm technology, has a package size of only 6x6mm, and can provide up to 86 IO Pins (38 pairs of LVDS differential Pins). The number of LUTs, on-chip RAM, DSP, and PLL is also quite abundant.

Since FPGA chips are so small, the size of the TangPrimer25K core board must also keep up, which is only 23x18mm, about the same size as a 5-cent coin.

The advantages of size, number of pins and programmable features have greatly expanded the application scenarios of this development board. For example, it can provide a large number of serial port connections and connect more than 20 I2C or SPI sensors with a single chip.

The Dock board that comes with this core board leads out most of the pins through PMOD and IO pins, and also provides JTAG+UART for the USB-C port, and a USB-A port for the HOST (see the schematic diagram, this USB-A port can also be turned into a Device by changing the resistor configuration).

This time I got the package version of PMOD, so it comes with a lot of PMOD modules:

1. LED

2. Buttons

3. Digital tube

4. DVI (HDMI)

5. TF card

The first three modules are the most basic modules for getting started with FPGA. They can demonstrate their functions through simple combinational logic and sequential logic. Since the clock input frequency of FPGA is 50MHz, a counter with a maximum value of 49999999 can achieve 1 second of timing.

PMOD LED can achieve the effect of running water light based on this 1 second timing. Cooperating with key logic, the direction of running water light can be changed. The two-digit digital tube can be used as a second hand display.

The following is a demonstration of the lighting effect:

0000

Since JTAG also has the multiplexing function of UART, a USB TypeC can complete the serial port interaction, and here we show you "Hello World".

Here is the printout:

0001

Finally, the project code is attached.

秦天qintian0303

What is the development environment for Gowin's GW5A-LV25MG121?

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Qintianqintian0303 posted on 2023-12-11 09:15 What is the development environment of Gaoyun's GW5A-LV25MG121?

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