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87	87	== 1.4  AT Command ==
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90		-AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in[[ AT Command documents>>https://www.dropbox.com/scl/fi/s3i58dyuh2zpwxfzcks9d/Accuhealth-LA66-AT-commands.pdf?rlkey=059co9isdbddl1h1lb5gy93oy&dl=0]].
	90	+AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in[[ AT Command documents>>https://www.dropbox.com/sh/wtq43za8sykpgta/AABAEE02uEAsRU-JV7bzEhMba?dl=0]].
91	91
	92	+
92	92	== 1.5  Dimension ==
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139	139	== 2.5 How can i use J-LInk to debug LA66? ==
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142		-(% style="color:#037691" %)**The steps are as follows:**
143	143
144		-
145		-(% style="color:blue" %)**1. Install J-Link software from**
146		-
147		-[[https:~~/~~/www.segger.com/downloads/jlink/>>url:https://www.segger.com/downloads/jlink/]]
148		-
149		-
150		-(% style="color:blue" %)**2. Expose PA6 / PA7 / RSTN of LA66.**
151		-
152		-
153		-[[image:image-20230605151850-1.png||height="676" width="640"]]
154		-
155		-
156		-[[image:image-20230605151850-2.png]]
157		-
158		-(% style="display:none" %) (%%)
159		-
160		-(% style="color:blue" %)**3. Connect JLINK, and switch mother board SW1 to ISP. Wire connection as below:**
161		-
162		-
163		-**LA66 PA6 < ~-~- > JLINK SWDIO (Pin 7)**
164		-
165		-**LA66 PA7 < ~-~- > JLINK SWCLK (Pin 9)**
166		-
167		-**LA66 RSTN < ~-~- > JLINK RESET (Pin 15)**
168		-
169		-**LA66 GND  < ~-~- > JLINK GND (Pin 8)**
170		-
171		-[[image:image-20230605151850-3.png||height="629" width="1182"]]
172		-
173		-(% style="display:none" %) (%%)
174		-
175		-(% style="color:blue" %)**4. Copy \SN50v3\tools\FLM\ASR6601.FLM to \Keil\ARM\ Flash\**
176		-
177		-(% style="display:none" %) [[image:image-20230605151850-4.png]]
178		-
179		-
180		-**Add ASR6601 256KB Flash to Flash Download**
181		-
182		-[[image:image-20230605152412-12.png]]
183		-
184		-
185		-[[image:image-20230605151851-6.png]]
186		-
187		-
188		-(% style="color:blue" %)**5. Modify \SN50v3\Projects\Applications\DRAGINO-LRWAN-AT\cfg\gcc.ld, to 0x08000000.**
189		-
190		-
191		-[[image:image-20230605151851-7.png]]
192		-
193		-[[image:image-20230605151851-8.png]]
194		-
195		-
196		-(% style="color:red" %)**Note: After debug, user should change the Flash address back to 0x0800D000, and upload the OTA bootloader to LA66. Otherwise, the compiled program doesn't support OTA update.**
197		-
198		-
199		-(% style="color:blue" %)**6. Comment the low power function in main.c.**
200		-
201		-
202		-[[image:image-20230605151851-9.png]]
203		-
204		-
205		-(% style="color:blue" %)**Click Debug mode to debug.**
206		-
207		-[[image:image-20230605151851-10.png||height="293" width="1275"]]
208		-
209		-
210		-[[image:image-20230605151851-11.png||height="739" width="1275"]](% style="display:none" %)
211		-
212		-(% style="display:none" %) (%%)
213		-
214	214	= 3.  Order Info =
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