Changes for page Check List for UART access issue -- STM32
Last modified by Xiaoling on 2022/07/13 17:54
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... ... @@ -1,23 +1,27 @@ 1 +(% class="wikigeneratedid" %) 2 +**Table of Contents:** 3 + 4 +{{toc/}} 5 + 6 + 1 1 = 1. Introduction = 2 2 9 + 3 3 This chapter describe the checklist for not able to access to AT Command in Dragino LoRaWAN End Node base on STM32 chip. 4 4 5 5 6 6 = 2. Not able to send AT Command = 7 7 15 + 8 8 * Do you use a USB to TTL Converter? If you use RS232 converter, it won't work 9 9 * Can you see the output from console. 10 10 * Do you use the correct baudrate: 19 +** (% style="color:blue" %)**Baudrate: 9600** 20 +** (% style="color:blue" %)**Data bits: 8** 21 +** (% style="color:blue" %)**Stop bits: 1** 22 +** (% style="color:blue" %)**Parity: None** 23 +** (% style="color:blue" %)**Flow control: None** 11 11 12 -(% class="box" %) 13 -((( 14 -~** Baudrate: 9600 15 -~** Data bits: 8 16 -~** Stop bits: 1 17 -~** Parity: None 18 -~** Flow control: None 19 -))) 20 - 21 21 * Did you have the hardware RXD pin connected correctly according to the user manual? 22 22 * Did you add the **ENTER** and **NEW LINE** after press send. Some serial utility doesn't add them by default. Below is an example for adding new line: 23 23 ... ... @@ -28,6 +28,7 @@ 28 28 29 29 = 3. If you still not able to fix this issue = 30 30 35 + 31 31 please send us below info at support@dragino.com 32 32 33 33 * Screen shot for your serial utility baud rate settings.