Issues with Lora Gateway calibration firmware

[Cameron MacLeod]

I have built util_tx_test from TheThingsNetwork/lora-gateway and am running it on a Multitech Conduit. However when I run it, I get the following output.

./util_tx_test -f 915 -r 1257
Sending -1 packets on 915000000 Hz (BW 125 kHz, SF 10, CR 1, 16 bytes payload, symbols preamble) at 14 dBm, with 1000 ms between each
ERROR: Version of calibration firmware not expected, actual:217 expected:2
ERROR: failed to start the concentrator

I have also built the tests in Lora-net/lora-gateway and when I run test_loragw_hal, I get the following.

root@mtcdt:~# ./test_loragw_hal
Beginning of test for loragw_hal.c
*** Library version information ***
Version: 2.0.0; Options: ftdi sx1301 sx1257 us915 no_brd private;

lgw_rxrf_setconf:884: Note: rf_chain 0 configuration; en:1 freq:914500000
lgw_rxrf_setconf:884: Note: rf_chain 1 configuration; en:1 freq:915500000
lgw_rxif_setconf:988: Note: LoRa 'multi' if_chain 0 configuration; en:1 freq:-300000 SF_mask:0x7e
lgw_rxif_setconf:988: Note: LoRa 'multi' if_chain 1 configuration; en:1 freq:300000 SF_mask:0x7e
lgw_rxif_setconf:988: Note: LoRa 'multi' if_chain 2 configuration; en:1 freq:-300000 SF_mask:0x7e
lgw_rxif_setconf:988: Note: LoRa 'multi' if_chain 3 configuration; en:1 freq:300000 SF_mask:0x7e
lgw_rxif_setconf:988: Note: LoRa 'multi' if_chain 4 configuration; en:1 freq:-100000 SF_mask:0x7e
lgw_rxif_setconf:988: Note: LoRa 'multi' if_chain 5 configuration; en:1 freq:100000 SF_mask:0x7e
lgw_rxif_setconf:988: Note: LoRa 'multi' if_chain 6 configuration; en:1 freq:-100000 SF_mask:0x7e
lgw_rxif_setconf:988: Note: LoRa 'multi' if_chain 7 configuration; en:1 freq:100000 SF_mask:0x7e
lgw_rxif_setconf:962: Note: LoRa 'std' if_chain 8 configuration; en:1 freq:0 bw:2 dr:16
lgw_rxif_setconf:1018: Note: FSK if_chain 9 configuration; en:1 freq:0 bw:2 dr:64000 (64000 real dr) sync:0xC194C1
lgw_spi_open:88: SPI port opened and configured ok
desc: (null)
PID: 0x6014
VID: 0x0403
clock: 6000000
Libmpsse version: 0x13
Note: SPI write success
Note: SPI read success
Note: SPI read success
Note: success connecting the concentrator
Note: SPI write success
Note: SPI read success
...
setup_sx125x:676: Note: SX125x #0 version register returned 0x07
Note: SPI read success
Note: SPI write success
...
setup_sx125x:681: Note: SX125x #0 clock output enabled
Note: SPI read success
Note: SPI write success
...
setup_sx125x:724: Note: SX125x #0 PLL start (attempt 1)
Note: SPI read success
Note: SPI write success
...
setup_sx125x:676: Note: SX125x #1 version register returned 0x1f
Note: SPI read success
Note: SPI write success
...
setup_sx125x:681: Note: SX125x #1 clock output enabled
Note: SPI read success
Note: SPI write success
...
setup_sx125x:724: Note: SX125x #1 PLL start (attempt 1)
Note: SPI read success
Note: SPI write success
...
Note: SPI burst write success
Note: SPI read success
Note: SPI write success
...
ERROR: Version of calibration firmware not expected, actual:0 expected:2
*** Impossible to start concentrator ***


The main difference is that actual is 0 as opposed to 217. Where I have used ‘…’ above, there are just (more or less) alternating “read success” and “write success”.

When I diff cal_fw.var in both sources, there is no difference.

My aim is just to get libloragw running, and the example programs seemed like an easy way of demonstrating that. Is there something obvious I am doing wrong? I can post other files and outputs if necessary.

[Jason Reiss]

The libloragw v1.7.0 is built into mLinux.

Is there specific functionality from v2.0.0 that you need?

We use version 1.7.0-mts branch from http://git.multitech.net/cgi-bin/cgit.cgi/lora_gateway.git/

[Cameron MacLeod]

Thanks for your reply Jason. I made a mistake in my previous post when I said the second output was from Lora-net/lora-gateway, that was in fact from the source you linked.

I have since deleted and re-cloned the source directory from your linked server, and after editing a few things I have gotten back to the output as above (actual:0, expected:2). The things I have changed are below.

• Change CFG_BAND from eu868 to us915
• Change $CC in the Makefile to reference $CC from the environment
• Include the directory with ftdi.h in CFLAGS
• Change PID in loragw_spi.ftdi.c to 0x6014

The output of test_loragw_cal now is as follows:

root@mtcdt:~# ./test_loragw_cal
lgw_rxrf_setconf:884: Note: rf_chain 0 configuration; en:1 freq:915500000
lgw_rxrf_setconf:884: Note: rf_chain 1 configuration; en:1 freq:915500000
Library version information: Version: 2.0.0; Options: ftdi sx1301 sx1257 us915 ref_1301_868 private;
Radio A frequency: 915.500000 MHz
Radio B frequency: 916.500000 MHz
Number of calibration iterations: 5
Calibration command: brd: 0, chip: 1257, dac: 3

Note: success connecting the concentrator
setup_sx125x:676: Note: SX125x #0 version register returned 0x07
setup_sx125x:684: Note: SX125x #0 clock output disabled
setup_sx125x:724: Note: SX125x #0 PLL start (attempt 1)
setup_sx125x:676: Note: SX125x #1 version register returned 0x1f
setup_sx125x:681: Note: SX125x #1 clock output enabled
setup_sx125x:724: Note: SX125x #1 PLL start (attempt 1)
ERROR: Version of calibration firmware not expected, actual:0 expected:2

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