Changes for page Check List for UART access issue -- STM32
Last modified by Xiaoling on 2022/07/13 17:54
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... ... @@ -1,21 +1,23 @@ 1 1 = 1. Introduction = 2 2 3 - 4 4 This chapter describe the checklist for not able to access to AT Command in Dragino LoRaWAN End Node base on STM32 chip. 5 5 6 6 7 7 = 2. Not able to send AT Command = 8 8 9 - 10 10 * Do you use a USB to TTL Converter? If you use RS232 converter, it won't work 11 11 * Can you see the output from console. 12 12 * Do you use the correct baudrate: 13 -** (% style="color:blue" %)**Baudrate: 9600** 14 -** (% style="color:blue" %)**Data bits: 8** 15 -** (% style="color:blue" %)**Stop bits: 1** 16 -** (% style="color:blue" %)**Parity: None** 17 -** (% style="color:blue" %)**Flow control: None** 18 18 12 +(% class="box" %) 13 +((( 14 +~** Baudrate: 9600 15 +~** Data bits: 8 16 +~** Stop bits: 1 17 +~** Parity: None 18 +~** Flow control: None 19 +))) 20 + 19 19 * Did you have the hardware RXD pin connected correctly according to the user manual? 20 20 * 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: 21 21 ... ... @@ -26,7 +26,6 @@ 26 26 27 27 = 3. If you still not able to fix this issue = 28 28 29 - 30 30 please send us below info at support@dragino.com 31 31 32 32 * Screen shot for your serial utility baud rate settings.