FX30 Ethernet IoT board

Hello,

I’m trying to use the FX30S LTE Global (WP7702) with the Talon Ethernet IoT board. I can’t seem to get the board to power on. I’m used to use the CAN IoT board without any issues.

I tried both following commands that I use with the CAN board, but they don’t work for the Ethernet one:

echo 6 > /sys/class/gpio/export
echo out > /sys/class/gpio/gpio6/direction
echo 1 > /sys/class/gpio/gpio6/value

echo 33 > /sys/class/gpio/export
echo out > /sys/class/gpio/gpio33/direction
echo 1 > /sys/class/gpio/gpio33/value

Please, could anyone just point me to some direction with the FX30? It seems to work fine with the Mangoh Red when set GPIO2.

Thank you,
Caio Porto

just a quick check, did you enable HSICENABLE in AT!CUSTOM?
It should be the same as the IOT connector in Mangoh red board.

I confirmed it is enable. I can’t see the interface and no lights on the board.

root@fx30s:~# microcom /dev/ttyAT
ati3
Manufacturer: Sierra Wireless, Incorporated
Model: FX30S(WP7702)
Revision: SWI9X06Y_02.16.06.00 7605a6 jenkins 2018/06/20 17:56:12
IMEI: 354723090112698
IMEI SV: 2
FSN: VU844685171210
+GCAP: +CGSM

OK
at!entercnd=“A710”
OK
at!custom?
!CUSTOM:
GPSENABLE 0x01
GPSLPM 0x01
IPV6ENABLE 0x01
UIM2ENABLE 0x01
SIMLPM 0x01
USBSERIALENABLE 0x01
SINGLEAPNSWITCH 0x01
TXONINDICATION 0x01
HSICENABLE 0x01
BOOTQUIETDISABLE 0x01
SCRUBEN 0x01
EXTGPSLNAEN 0x01

OK

I tried the following:

WP77 + WP77 FW R13 + mangoh red -> OK for Ethernet IOT card after setting GPIO2
echo 2 > /sys/class/gpio/export
echo out > /sys/class/gpio/gpio2/direction
echo 1 > /sys/class/gpio/gpio2/value

Maybe you can try the same on your FX30.

I already tried without success…

I tested the same board and command on my Mangoh Red and it works fine. Seems to be something different on FX30 design.

seems FX30 FW is not working on mangoh red board with ethernet card, but WP77 FW is OK on mangoh red board with ethernet card.
The schematic on IOT expander should be the same regarding on using ethernet IOT board.

Just to be clear, I have an FX30s and a Mangoh Red hardware.
I tested the Ethernet IoT card on both. Mangoh Red works fine, but FX30 doesn’t.
I tested with R13 on FX30, still won’t work.
I have a CAN IoT card that works fine on the FX30

Is it a HW design issue or FW issue with the FX30?
Any additional step I can take to troubleshoot this?
Anyone with an FX30s to test this? I have hundreds of them.

Best,
Caio Porto

Hi Caio Porto,
I suspect the issue is due to U1 on the Talon ethernet card. The issue is the bi-directional level shifter leakage reverse drives the RESET_OUT line.

The part needs to be replaced with a pin compatible part such as: 74AVC1T45

The reason you don’t see the issue on the mangOH red is the the RESET_OUT circuit is buffered.

BR,
Chris