Changes for page Check List for UART access issue -- STM32
Last modified by Xiaoling on 2022/07/13 17:54
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... ... @@ -1,32 +1,34 @@ 1 -{{box cssClass="floatinginfobox" title="**Contents**"}} 2 -{{toc/}} 3 -{{/box}} 1 += 1. Introduction = 4 4 5 - =Paragraph1=3 +This chapter describe the checklist for not able to access to AT Command in Dragino LoRaWAN End Node base on STM32 chip. 6 6 7 - Loremipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.Ut enim ad minim veniam, quis nostrudexercitation ullamco laboris nisi ut aliquipexea commodo consequat. Duis aute irure dolorin reprehenderit in voluptate velit essecillum dolore eu fugiatnulla pariatur. Excepteur sint occaecat cupidatatnonproident, sunt in culpa qui officia deseruntmollitanim idest laborum.5 += 2. Not able to send AT Command = 8 8 9 -== Sub-paragraph == 7 +* Do you use a USB to TTL Converter? If you use RS232 converter, it won't work 8 +* Can you see the output from console. 9 +* Do you use the correct baudrate: 10 10 11 -Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. 11 +(% class="box" %) 12 +((( 13 +~** Baudrate: 9600 14 +~** Data bits: 8 15 +~** Stop bits: 1 16 +~** Parity: None 17 +~** Flow control: None 18 +))) 12 12 13 -== Sub-paragraph == 20 +* Did you have the hardware RXD pin connected correctly according to the user manual? 21 +* 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: 14 14 15 - Loremipsumdolor sitamet, consectetur adipiscing elit, seddo eiusmod temporididunt ut labore et doloremagna aliqua. Ut enimd minim veniam, quisnostrud exercitation ullamco laboris nisi ut aliquip ex eacommodoconsequat. Duisaute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nullapariatur. Excepteur sint occaecatcupidatat non proident,sunt in culpa qui officia deserunt mollitanim idestlaborum.23 +[[image:https://wiki.dragino.com/images/thumb/5/5c/UART_access_1.png/600px-UART_access_1.png||height="419" width="600"]] 16 16 17 - ===Sub-subparagraph ===25 +Add a new line in some software 18 18 19 -Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. 20 20 28 += 3. If you still not able to fix this issue = 21 21 22 - =Paragraph 2 =30 +please send us below info at support@dragino.com 23 23 24 -Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. 25 - 26 -== Sub-paragraph == 27 - 28 -Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. 29 - 30 -== Sub-paragraph == 31 - 32 -Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. 32 +* Screen shot for your serial utility baud rate settings. 33 +* Screen shot of your serial console. 34 +* A photo shows clearly how you use USB-TTL adapter connect to the device.
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