Last modified by Xiaoling on 2023/09/19 09:20
<
From version < 162.2 >
edited by Xiaoling
on 2023/06/05 15:32
To version < 149.2 >
edited by Xiaoling
on 2022/10/21 11:10
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Summary

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8 8  
9 9  = 1.  LA66 LoRaWAN Module =
10 10  
11 +
11 11  == 1.1  What is LA66 LoRaWAN Module ==
12 12  
13 13  
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48 48  )))
49 49  
50 50  
52 +
51 51  == 1.2  Features ==
52 52  
53 53  
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61 61  * Firmware upgradable via UART interface
62 62  * Ultra-long RF range
63 63  
66 +
67 +
64 64  == 1.3  Specification ==
65 65  
66 66  
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82 82  * LoRa Rx current: <9 mA
83 83  * I/O Voltage: 3.3v
84 84  
89 +
90 +
85 85  == 1.4  AT Command ==
86 86  
87 87  
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88 88  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]].
89 89  
90 90  
97 +
91 91  == 1.5  Dimension ==
92 92  
93 93  
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94 94  [[image:image-20220718094750-3.png]]
95 95  
96 96  
104 +
97 97  == 1.6  Pin Mapping ==
98 98  
99 99  [[image:image-20220720111850-1.png]]
100 100  
101 101  
110 +
102 102  == 1.7  Land Pattern ==
103 103  
104 104  
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105 105  [[image:image-20220517072821-2.png]]
106 106  
107 107  
117 +
108 108  = 2.  FAQ =
109 109  
120 +
110 110  == 2.1  Where to find examples of how to use LA66? ==
111 111  
112 112  
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116 116  * [[LA66 Shield for Arduino>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Shield User Manual.WebHome]]
117 117  * [[LA66 USB Adapter>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 USB LoRaWAN Adapter User Manual.WebHome]]
118 118  
130 +
131 +
119 119  == 2.2  How to Compile Source Code for LA66? ==
120 120  
121 121  
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122 122  Compile and Upload Code to ASR6601 Platform：[[Instruction>>Compile and Upload Code to ASR6601 Platform]]
123 123  
124 124  
138 +
125 125  == 2.3  Can i use LA66 module's internal I/O without external MCU, So to save product cost? ==
126 126  
127 127  
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128 128  Yes, this is possible, user can refer[[ the source code from ASR >>https://github.com/asrlora/asr_lora_6601/tree/master/projects/ASR6601SE-EVAL/examples/lora]]to get examples for how to its I/O Interfaces.
129 129  
130 130  
145 +
131 131  == 2.4  Where to find Peer-to-Peer firmware of LA66? ==
132 132  
133 133  
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134 134  Instruction for LA66 Peer to Peer firmware :[[ Instruction >>doc:Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Shield User Manual.Instruction for LA66 Peer to Peer firmware.WebHome]]
135 135  
136 136  
137 -== 2.5 How can i use J-LInk to debug LA66? ==
138 138  
139 -
140 -(% style="color:#037691" %)**The steps are as follows:**
141 -
142 -
143 -(% style="color:blue" %)**1. Install J-Link software from**
144 -
145 -[[https:~~/~~/www.segger.com/downloads/jlink/>>url:https://www.segger.com/downloads/jlink/]]
146 -
147 -
148 -(% style="color:blue" %)**2. Expose PA6 / PA7 / RSTN of LA66.**
149 -
150 -
151 -[[image:image-20230605151850-1.png]]
152 -
153 -
154 -[[image:image-20230605151850-2.png]]
155 -
156 -
157 -(% style="color:blue" %)**3. Connect JLINK, and switch mother board SW1 to ISP. Wire connection as below:**
158 -
159 -**LA66 PA6 < ~-~- > JLINK SWDIO (Pin 7)**
160 -
161 -**LA66 PA7 < ~-~- > JLINK SWCLK (Pin 9)**
162 -
163 -**LA66 RSTN < ~-~- > JLINK RESET (Pin 15)**
164 -
165 -**LA66 GND  < ~-~- > JLINK GND (Pin 8)**
166 -
167 -[[image:image-20230605151850-3.png||height="629" width="1182"]]
168 -
169 -(% style="display:none" %) (%%)
170 -
171 -(% style="color:blue" %)**4. Copy \SN50v3\tools\FLM\ASR6601.FLM to \Keil\ARM\ Flash\**
172 -
173 -(% style="display:none" %) [[image:image-20230605151850-4.png]]
174 -
175 -
176 -(% style="color:blue" %)**Add ASR6601 256KB Flash to Flash Download**
177 -
178 -[[image:image-20230605152412-12.png]]
179 -
180 -
181 -[[image:image-20230605151851-6.png]]
182 -
183 -
184 -(% style="color:blue" %)**5. Modify \SN50v3\Projects\Applications\DRAGINO-LRWAN-AT\cfg\gcc.ld, to 0x08000000.**
185 -
186 -[[image:image-20230605151851-7.png]]
187 -
188 -[[image:image-20230605151851-8.png]]
189 -
190 -
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.**
192 -
193 -
194 -(% style="color:blue" %)**6. Comment the low power function in main.c.**
195 -
196 -
197 -[[image:image-20230605151851-9.png]]
198 -
199 -
200 -(% style="color:blue" %)**Click Debug mode to debug.**
201 -
202 -[[image:image-20230605151851-10.png||height="293" width="1275"]]
203 -
204 -
205 -[[image:image-20230605151851-11.png||height="739" width="1275"]](% style="display:none" %)
206 -
207 -(% style="display:none" %) (%%)
208 -
209 209  = 3.  Order Info =
210 210  
211 211  
212 212  **Part Number:**  (% style="color:blue" %)**LA66-XXX**
213 213  
158 +
214 214  (% style="color:blue" %)**XXX**(%%): The default frequency band
215 215  
216 216  * (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
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223 223  * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
224 224  * (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
225 225  
171 +
172 +
226 226  = 4.  FCC Statement =
227 227  
228 228  
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249 249  (% style="color:red" %)**FCC Radiation Exposure Statement: **
250 250  
251 251  This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.This equipment should be installed and operated with minimum distance 20cm between the radiator& your body.
252 -
253 -
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