Silicon lab Zigbee solution EFR32 two Usart tx test

此篇測試使用Silicon lab EFR32 晶片,透過ZNET stack 使用兩組UART 在SOC project上
 測試TX 部分
ZNET5.10.1.0
SOC mode
BRD4151A
Sample code : Z3Switch
Zigbee Type : Sleep end device
USART0 :TX PA0, RX PA1
USART1:TX PC9 ,RX PC 10


Step as below:

We use Z3SwitchSample

We use BRD4151A for the test

Set a event for test

chose maininit callback,and copy it to callback.c file.

not overwrite callback.c when we generate a project.

Default the USART1 on BRD4151A is use for external flash.

So if we want use USART1 we need take off EEPROM plugin .

Generate the project 

Setting the USART 1 to PC9,PC10

The location can be check on datasheet

EFR32MG1 Mighty Gecko Multi-Protocol SoC Family Data Sheet

We don't use the ncp ,so disable here

Disable the SPI to external flash pin define

We try to initial the USART1 on maininit callback.

Fix a ZNET5.10.1 bug ,lose the ","

We print some message on event and set it print every 5 seconds

compile and upload the FW to EFR32

We use the BRD4001A Expansion Header Pinout to connect to CP2104,and connect to PC.

UG151: EFR32MG1 2.4 GHz 19.5 dBm Radio Board User's Guide

After upload FW ,we can use tera term  to open CP2104 console and can find the TX message fromUSART1  tx PC9 data

Here is the USAR0 from PA0 data

Here is the related UART API .

EmberZNet API Reference