【EVK-NINA-B400 Evaluation Kit】+Building Environment and Small Test

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【EVK-NINA-B400 Evaluation Kit】+Building Environment and Small Test [Copy link]

After unpacking, we need to build a basic development environment for development and testing. After checking the information, we found that it uses the NRF52833 chip open CPU architecture. So we need to go to the NORDIC official website to download the SDK and some manuals.

Its SDK contains several development tools. Common keil and IAR development tools are supported. You can directly refer to the official development process.

Before developing with Keil, you need to download PACK from the Keil official website. This will allow your chip to be recognized.

After unzipping the SDK package, you need to open the official process to view it yourself. I chose a simple serial port process to view and burn the test. Its process is compatible with different boards, so the board we correspond to the chip is pca10100. This can be found by referring to the board manual of NRF52833 they released.

After that, I compiled and downloaded the software. After the download was completed, I found that the serial port did not respond. This problem also troubled me for a long time. I always suspected that I did not do it well.

The software says NUMBER, but I found that the connection is wrong, the board says 22, 23. I changed it to 22, 23 but it doesn't work.

Then I looked in the NINA-B40 manual and found that the naming was incorrect.

Finally I saw what it meant in the official manual.

Finally, it responded after connecting to GPIO_47,52.

Then I continued playing and sharing the process.

Jacktang

Just try a few more times and you'll get it

Nordic's nRF52833 BLE SoC chip has two UARTs, UART0 and UART1, but there is no example of how to use UART1 in the official routines.

freebsder

It's obviously cortexm4, what does opencpu say?

w494143467

I guess it depends on the principle of the development board.

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freebsder posted on 2021-5-16 21:41 It's obviously cortexm4, how can opencpu say that?

should mean this, not RISC-V, it is mentioned in their manual.

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Jacktang posted on 2021-5-16 19:02 After a few more attempts, you will be able to use Nordic's nRF52833 BLE SoC chip. The chip has 2 UARTs, namely UART0 and UART1, but the official example...

Well, I also looked at other materials, but the pin definitions are not available in the main manuals, so I have to figure it out.

freebsder

Popular Technology Published on 2021-5-17 13:11 This should be the meaning, not RISC-V, which is mentioned in their manual.

This is the first time I heard of it, it's quite interesting.