[GD32L233C-START Review] 1. GD32L233C-START with obvious advantages and disadvantages (unboxing)

freeelectron

[GD32L233C-START Review] 1. GD32L233C-START with obvious advantages and disadvantages (unboxing) [Copy link]

First of all, I would like to thank EEWORLD and GD32 officials for giving me this review opportunity. Thank you !

1. Download:

https://www.eeworld.com.cn/huodong/GigaDevice_GD32L233_202112/

2. Advantages:

• The information is relatively complete
• The board design is simple and elegant;
• Pin compatible with Arduino UNO R3 interface;
• Onboard GD-Link ;
• Jumper selects boot mode, you can use serial port ISP to download;
• The SWD interface is brought out separately and can be used with other debuggers.

3. Disadvantages:

• The 5V of the whole board is input through the mini USB port of GD-Link , and the 5V of the mini USB port of USB and UART is not connected;
• ASM1117-3.3V was used to convert 5V to 3.3V . The static power consumption of this chip is about 8ma , which is very unfavorable for evaluating power consumption (this is also a fatal point) ;
• There is no point for power consumption measurement (the current range of the multimeter is connected in series);
• There are 4 positioning holes, of which the one on the upper right is very random, as if it was placed at random;
• There is no pin header, which makes it look a bit shabby.

xinmeng_wit

Change it quickly, it's still 21ic

wade任

The 3.3V output of this LDO is shared by L233 and GDLink.

freeelectron

xinmeng_wit posted on 2022-1-18 16:17 Change it quickly, it's still 21ic

annysky2012

The design of the development board is normal.

freebsder

Simplified version, reasonable

soso

Looking forward to the follow-up :)

hujj

I don't think it's a disadvantage that the USB and UART interfaces are not connected to a power source. This is to prevent the voltage difference between the power sources from being a hidden danger when multiple power sources are connected at the same time. However, it would be more convenient to use if a jumper cap could be used to select which power source to connect.

lugl4313820

If you want to measure the power consumption, prepare the operation force, cut the line, and then resume your life after the test.