From version 1.1 >
edited by Xiaoling
on 2022/05/11 17:26
To version < 2.8 >
edited by Xiaoling
on 2022/07/13 17:30
>
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1 -{{box cssClass="floatinginfobox" title="**Contents**"}}
1 +(% class="wikigeneratedid" %)
2 +**Table of Contents:**
3 +
2 2  {{toc/}}
3 -{{/box}}
4 4  
5 -= Paragraph 1 =
6 6  
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7 += 1. Introduction =
8 8  
9 -== Sub-paragraph ==
10 10  
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10 +This chapter describe the checklist for not able to access to AT Command in Dragino LoRaWAN End Node base on STM32 chip.
12 12  
13 -== Sub-paragraph ==
14 14  
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13 += 2. Not able to send AT Command =
16 16  
17 -=== Sub-sub paragraph ===
18 18  
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16 +* Do you use a USB to TTL Converter? If you use RS232 converter, it won't work
17 +* Can you see the output from console.
18 +* 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**
20 20  
25 +* Did you have the hardware RXD pin connected correctly according to the user manual?
26 +* Did you add the (% style="color:blue" %)**ENTER**(%%) and (% style="color:blue" %)**NEW LINE**(%%) after press send. Some serial utility doesn't add them by default. Below is an example for adding new line:
21 21  
22 -= Paragraph 2 =
28 +[[image:image-20220527083416-1.png]]
23 23  
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30 +Add a new line in some software
25 25  
26 -== Sub-paragraph ==
27 27  
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33 += 3. If you still not able to fix this issue =
29 29  
30 -== Sub-paragraph ==
31 31  
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36 +please send us below info at support@dragino.com
37 +
38 +* Screen shot for your serial utility baud rate settings.
39 +* Screen shot of your serial console.
40 +* A photo shows clearly how you use USB-TTL adapter connect to the device.
image-20220527083416-1.png
Author
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1 +XWiki.Xiaoling
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1 +77.8 KB
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