Changes for page LoRaWAN Communication Debug
Last modified by Edwin Chen on 2025/01/29 20:30
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... ... @@ -237,27 +237,21 @@ 237 237 238 238 (% class="box infomessage" %) 239 239 ((( 240 - 240 + AT+RX2DR=3 ~-~--> The RX2 DataRate 241 241 ))) 242 242 243 243 (% class="box infomessage" %) 244 244 ((( 245 - 245 + AT+RX1DL=1000 ~-~--> Receive Delay 1 246 246 ))) 247 247 248 248 (% class="box infomessage" %) 249 249 ((( 250 - 250 + AT+RX2DL=2000 ~-~--> Receive Delay 2 251 251 ))) 252 252 253 -((( 254 -**when the device running, we can see below info:** 255 -))) 253 +when the device running, we can see below info: 256 256 257 -((( 258 - 259 -))) 260 - 261 261 (% class="box" %) 262 262 ((( 263 263 [12502]~*~*~*~** UpLinkCounter= 0 ~*~*~*~** ... ... @@ -269,15 +269,9 @@ 269 269 [16027]rxTimeOut ~-~-> no packet arrive in RX2 window. (duration: 40 ms) 270 270 ))) 271 271 266 +(% class="box" %) 272 272 ((( 273 - 274 -))) 275 - 276 -((( 277 -**Another message:** 278 -))) 279 - 280 - 268 + Another message: 281 281 [12502]~*~*~*~** UpLinkCounter= 0 ~*~*~*~** 282 282 [12503]TX on freq 868100000 Hz at DR 0 283 283 [13992]txDone ... ... @@ -288,6 +288,7 @@ 288 288 Rssi= -64 289 289 Receive data 290 290 1:0012345678 279 +))) 291 291 292 292 == 5.3 If problem doesn’t solve == 293 293 ... ... @@ -300,25 +300,14 @@ 300 300 301 301 = 6. Downlink Issue ~-~- Packet REJECTED, unsupported frequency = 302 302 303 -((( 304 304 In LoRaWAN, the gatewat will use the frequency specify by the server to transmit a packet as downlink purpose. Each Frequency band has different downlink frequency. and the gateway has a frequency range limited to transmit downlink. 305 -))) 306 306 307 -((( 308 - 309 -))) 310 - 311 -((( 312 312 So if the LoRaWAN server is an AS923 server which ask the gateway to transmit at 923.2Mhz frequency, but the gateway is IN868 frequency band (support 865~~867Mhz to transmit). In the gateway log it will show something like below: 313 -))) 314 314 315 -((( 316 -Sat Nov 21 08:04:17 2020 daemon.info lora_pkt_fwd[1680]: ERROR~~ Packet REJECTED, unsupported frequency - 923200000 (min:865000000,max:867000000) 317 -))) 296 +{{{Sat Nov 21 08:04:17 2020 daemon.info lora_pkt_fwd[1680]: ERROR~ Packet REJECTED, unsupported frequency - 923200000 (min:865000000,max:867000000) 297 +}}} 318 318 319 -((( 320 320 In this case, please double check the gateway frequency and the server frequency band. 321 -))) 322 322 323 323 324 324 = 7. Decrypt a LoRaWAN Packet =