WM1302 Gateway + Pi HAT Getting Started Issue

MikeWAN · February 7, 2022, 9:45am

Hello,
On this page,
https://wiki.seeedstudio.com/WM1302_module/
, it indicates to update the file “tools/reset_lgw.sh” to change the RESET pins of SX1302 and SX1261 to 25 & 17 respectively.
However, on the pin-mapping for WM1302 Pi Hat page: https://wiki.seeedstudio.com/WM1302_Pi_HAT/
WM1302PiHat’s RESET is mapped to RPi’s GPIO 17, and SX1262’s (there is no SX1261 on the mapping; therefore assuming SX1262) RSET is mapped to RPi’s GPIO 5.

Is the Getting Started Guide still correct? If not, what should the values for
SX1302_RESET_PIN=
SX1261_RESET_PIN=
in “tools/reset_lgw.sh”?

Thanks!

Citric · February 8, 2022, 2:10am

Hello, our wiki is written after testing, and you can modify the pins according to the instructions of the wiki. If the effect does not match the actual, you can leave a message, thank you.

MikeWAN · February 8, 2022, 4:56am

Thank you for the reply.

I am worried that if I specify the wrong pin number, it will damage the WM1302 gateway.

If there is no need to worry for damaging the WM1302 gateway, please let me know, and I will go try the indicated pin numbers in the wiki.

Also, I would like to know why/how those numbers are specified? How are the number selected matched to the WM1302 pin and HAT layouts/mapping?

Thanks!

MikeWAN · February 13, 2022, 9:18am

I have tried the setting per the wiki documentation, and this is the error I got:

CoreCell reset through GPIO25...
SX1261 reset through GPIO25...
CoreCell power enable through GPIO18...
CoreCell ADC reset through GPIO13...
Opening SPI communication interface
Note: chip version is 0x00 (v0.0)
ERROR: Failed to set SX1250_0 in STANDBY_RC mode
ERROR: failed to setup radio 0
ERROR: [main] failed to start the concentrator

reset_lgw.sh settings:

SX1302_RESET_PIN=25 # SX1302 reset
SX1302_POWER_EN_PIN=18 # SX1302 power enable
SX1261_RESET_PIN=17 # SX1261 reset (LBT / Spectral Scan)
AD5338R_RESET_PIN=13 # AD5338R reset (full-duplex CN490 reference design)

command run:

root@raspberrypi2:~/sx1302_hal/packet_forwarder #./reset_lgw.sh start
CoreCell reset through GPIO25...
SX1261 reset through GPIO25...
CoreCell power enable through GPIO18...
CoreCell ADC reset through GPIO13...

root@raspberrypi2:~/sx1302_hal/packet_forwarder #./lora_pkt_fwd -c global_conf.json.sx1250.US915
*** Packet Forwarder ***
Version: 2.1.0
*** SX1302 HAL library version info ***
Version: 2.1.0;
***
INFO: Little endian host
INFO: found configuration file global_conf.json.sx1250.US915, parsing it
INFO: global_conf.json.sx1250.US915 does contain a JSON object named SX130x_conf, parsing SX1302 parameters
INFO: com_type SPI, com_path /dev/spidev0.0, lorawan_public 1, clksrc 0, full_duplex 0
INFO: antenna_gain 0 dBi
INFO: Configuring legacy timestamp
INFO: Configuring Tx Gain LUT for rf_chain 0 with 16 indexes for sx1250
INFO: radio 0 enabled (type SX1250), center frequency 904300000, RSSI offset -215.399994, tx enabled 1, single input mode 0
INFO: radio 1 enabled (type SX1250), center frequency 905000000, RSSI offset -215.399994, tx enabled 0, single input mode 0
INFO: Lora multi-SF channel 0>  radio 0, IF -400000 Hz, 125 kHz bw, SF 5 to 12
INFO: Lora multi-SF channel 1>  radio 0, IF -200000 Hz, 125 kHz bw, SF 5 to 12
INFO: Lora multi-SF channel 2>  radio 0, IF 0 Hz, 125 kHz bw, SF 5 to 12
INFO: Lora multi-SF channel 3>  radio 0, IF 200000 Hz, 125 kHz bw, SF 5 to 12
INFO: Lora multi-SF channel 4>  radio 1, IF -300000 Hz, 125 kHz bw, SF 5 to 12
INFO: Lora multi-SF channel 5>  radio 1, IF -100000 Hz, 125 kHz bw, SF 5 to 12
INFO: Lora multi-SF channel 6>  radio 1, IF 100000 Hz, 125 kHz bw, SF 5 to 12
INFO: Lora multi-SF channel 7>  radio 1, IF 300000 Hz, 125 kHz bw, SF 5 to 12
INFO: Lora std channel> radio 0, IF 300000 Hz, 500000 Hz bw, SF 8, Explicit header
INFO: FSK channel 8 disabled
INFO: global_conf.json.sx1250.US915 does contain a JSON object named gateway_conf, parsing gateway parameters
INFO: gateway MAC address is configured to AA555A0000000011
INFO: server hostname or IP address is configured to "localhost"
INFO: upstream port is configured to "1730"
INFO: downstream port is configured to "1730"
INFO: downstream keep-alive interval is configured to 10 seconds
INFO: statistics display interval is configured to 30 seconds
INFO: upstream PUSH_DATA time-out is configured to 100 ms
INFO: packets received with a valid CRC will be forwarded
INFO: packets received with a CRC error will NOT be forwarded
INFO: packets received with no CRC will NOT be forwarded
INFO: GPS serial port path is configured to "/dev/ttyS0"
INFO: Reference latitude is configured to 0.000000 deg
INFO: Reference longitude is configured to 0.000000 deg
INFO: Reference altitude is configured to 0 meters
INFO: Beaconing period is configured to 0 seconds
INFO: Beaconing signal will be emitted at 869525000 Hz
INFO: Beaconing datarate is set to SF9
INFO: Beaconing modulation bandwidth is set to 125000Hz
INFO: Beaconing TX power is set to 14dBm
INFO: Beaconing information descriptor is set to 0
INFO: global_conf.json.sx1250.US915 does contain a JSON object named debug_conf, parsing debug parameters
INFO: got 2 debug reference payload
INFO: reference payload ID 0 is 0xCAFE1234
INFO: reference payload ID 1 is 0xCAFE2345
INFO: setting debug log file name to loragw_hal.log
INFO: [main] TTY port /dev/ttyS0 open for GPS synchronization
CoreCell reset through GPIO25...
SX1261 reset through GPIO25...
CoreCell power enable through GPIO18...
CoreCell ADC reset through GPIO13...
Opening SPI communication interface
Note: chip version is 0x00 (v0.0)
ERROR: Failed to set SX1250_0 in STANDBY_RC mode
ERROR: failed to setup radio 0
ERROR: [main] failed to start the concentrator

What could be wrong to cause these errors?

Citric · February 14, 2022, 3:40am

Sorry, my authority is limited, I can’t find more detailed specifications, and I haven’t been able to get an accurate answer after waiting for a few days. We recommend that you contact our technical support mailbox directly and describe the detailed problem to them again. We apologize.

MikeWAN · February 15, 2022, 8:31am

Setting the following parameters instead seems to have worked:

SX1302_RESET_PIN=17     # SX1302 reset
SX1302_POWER_EN_PIN=18  # SX1302 power enable
SX1261_RESET_PIN=5     # SX1261 reset (LBT / Spectral Scan)
AD5338R_RESET_PIN=13    # AD5338R reset (full-duplex CN490 reference design)

After saving the above changes in the reset_lgw.sh file and running it:

./reset_lgw.sh start

and then running the command

./lora_pkg_fwd -c global_conf.json.sx1250.US915

started up properly with information being displayed:

### [UPSTREAM] ###
# RF packets received by concentrator: 0
# CRC_OK: 0.00%, CRC_FAIL: 0.00%, NO_CRC: 0.00%
# RF packets forwarded: 0 (0 bytes)
# PUSH_DATA datagrams sent: 1 (123 bytes)
# PUSH_DATA acknowledged: 0.00%
### [DOWNSTREAM] ###
# PULL_DATA sent: 3 (0.00% acknowledged)
# PULL_RESP(onse) datagrams received: 0 (0 bytes)
# RF packets sent to concentrator: 0 (0 bytes)
# TX errors: 0
### SX1302 Status ###
# SX1302 counter (INST): 780796646
# SX1302 counter (PPS):  0
# BEACON queued: 0
# BEACON sent so far: 0
# BEACON rejected: 0
......

Stalin_John · November 9, 2023, 10:32am

does any one have the code for enable sx1262 in wm1302 using any microcontroller