LCD on Red with WP7702

mangOH Red
1

Hello,

I use a mangOH Red with WP7702,
I installed a new mangOH Distribution 18.09.0 Release and Release14_SWI9X15Y_07.12.09.00_00_GENERIC_001.033_000 toolchain,

aftin builld and updated the pckages in the carte :

Pb 1- A don’t see any the welcome message on the first line of the LCD.
after that i start the redSensorToCloud app and start working with Brooklyn by setting the value of the /lcd/txt1–> i see this error in terminal ( loging with “logread -f”)

PB2 :
Nov 19 13:50:55 swi-mdm9x28-wp user.info Legato: INFO | avcDaemon[1335]/avcDaemon T=main | avData.c AvServerRequestHandler() 2392 | >>>>> Request Uri is: [/cloudInterface/dh/cfg]
Nov 19 13:50:55 swi-mdm9x28-wp user.err Legato: =ERR= | avcDaemon[1335]/avcDaemon T=main | avData.c CheckCborStringLen() 1361 | Encoded string (1039 bytes) too big. Max 255 bytes expected.
Nov 19 13:50:55 swi-mdm9x28-wp user.err kernel: [12293.784924] i2c-msm-v2 78b8000.i2c: NACK: slave not responding, ensure its powered: msgs(n:1 cur:0 tx) bc(rx:0 tx:14) mode:FIFO slv_addr:0x3a MSTR_STS:0x0c1300c8 OPER:0x00000090

Thanks in advance,

2

Are you trying to write a very long string to the LCD? Or perhaps the string is not null terminated.

3

I use a mangOH Red with WP7702,
I installed a new mangOH Distribution 18.09.0 Release and Release14_SWI9X15Y_07.12.09.00_00_GENERIC_001.033_000 toolchain,

That firmware release is for the WP85xx and WP75xx modules, but you mention you are using the WP7702.
@dfrey Are they compatible?

4

Thank you Shib,

in CF3 module’s device page at http://source.sierrawireless.com.
I selected AirPrime > WP Series > WP7702 > Fireware
I find the toolchain and Release

5

Hi Dfery,

no the string is not very long , i tryed by one char and the same problem,
what’s this the null terminated ?

6

Hi,
By default the Brooklyn application are closed source and not in the mangoh system def, so you cannot recompile it yourself.
Also for Brooklyn we patched legato to circumvent some limitation like the one you are hitting.
Julien

9

I just had a look and couldn’t find that firmware release anywhere under the WP7702 module. Are you sure you selected the right module when you downloaded it the first time?