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61	61	* Firmware upgradable via UART interface
62	62	* Ultra-long RF range
63	63
64		-
65		-
66	66	== 1.3  Specification ==
67	67
68	68
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84	84	* LoRa Rx current: <9 mA
85	85	* I/O Voltage: 3.3v
86	86
87		-
88		-
89	89	== 1.4  AT Command ==
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91	91
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120	120	* [[LA66 Shield for Arduino>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Shield User Manual.WebHome]]
121	121	* [[LA66 USB Adapter>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 USB LoRaWAN Adapter User Manual.WebHome]]
122	122
123		-
124		-
125	125	== 2.2  How to Compile Source Code for LA66? ==
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127	127
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154	154	(% style="color:blue" %)**2. Expose PA6 / PA7 / RSTN of LA66.**
155	155
156	156
157		-[[image:image-20230605151850-1.png||height="676" width="640"]]
	151	+[[image:image-20230605151850-1.png]]
158	158
159	159
160	160	[[image:image-20230605151850-2.png]]
161	161
162		-(% style="display:none" %) (%%)
163	163
164	164	(% style="color:blue" %)**3. Connect JLINK, and switch mother board SW1 to ISP. Wire connection as below:**
165	165
166		-
167	167	**LA66 PA6 < ~-~- > JLINK SWDIO (Pin 7)**
168	168
169	169	**LA66 PA7 < ~-~- > JLINK SWCLK (Pin 9)**
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181	181	(% style="display:none" %) [[image:image-20230605151850-4.png]]
182	182
183	183
184		-**Add ASR6601 256KB Flash to Flash Download**
	176	+(% style="color:blue" %)**Add ASR6601 256KB Flash to Flash Download**
185	185
186	186	[[image:image-20230605152412-12.png]]
187	187
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191	191
192	192	(% style="color:blue" %)**5. Modify \SN50v3\Projects\Applications\DRAGINO-LRWAN-AT\cfg\gcc.ld, to 0x08000000.**
193	193
194		-
195	195	[[image:image-20230605151851-7.png]]
196	196
197	197	[[image:image-20230605151851-8.png]]
198	198
199	199
200		-(% 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.**
	191	+(% 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.**
201	201
202	202
203	203	(% style="color:blue" %)**6. Comment the low power function in main.c.**
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232	232	* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
233	233	* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
234	234
235		-
236		-
237	237	= 4.  FCC Statement =
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239	239