WICED Smart Bluetooth

[Anonymous]

I have custom board with BCM20736s and this works well.  I replaced BCM20736s for BCM20737s and the application starts but stops at the beginning. Anyone know why. I make target with Application-BCM920737TAG_Q32 download.

[MichaelF_56]

Exact same board with the exact same program running?  No HW changes at all? You simply swap the 20736S out for a 20737S?

[Anonymous]

yes I simply swap the 20736S out for a 20737S with the same hardware and the same program running.

Have  something else to do ?

I make target with Application-BCM920737TAG_Q32 download instead of Application-BCM920736TAG_Q32 download

[Anonymous]

Hello Eduardo,

With your 20737S device on the board try using the same make target for the application-BCM920736TAG_Q32 download.

Do you get any errors?

Thanks

JT

[Anonymous]

I tested in 50 boards and only work 11 making target with application-BCM920736TAG_Q32 download. I have also tried to program them with application-BCM920737TAG_Q32 download and they also work. I don´t know why the rest of boards stopped when program begins running.

I've been working months with the previous chip without any problem. which may be the problem, I'm going crazy.

[BoonT_56]

This could be a soldering issue. Did you have any luck? @eduwimy

[Anonymous]

This week I´m going to talk with the company that make the boards. I'll see if I'm lucky.

thanks for answering.

[BoonT_56 · Accepted solution]

As you are using the SIP module, the below issue is also something that you would like to be aware of.

Explanation of Crystal Warmup Issue

[Anonymous]

If I put in  .csv file "sleep enable" = 0 then the program works fine. but if I put the proposed solution...do not work.

1 - create a CSG file inside the application folder named app.csg with the content below:

ENTRY "PMU Crystal Warm up Time"

{

   "Crystal warm up time" = 5000

}

Note that the default Crystal warm up time is 2500. By increasing this to 5000 we managed to resolve the issue.

2 - Add the following line to makefile.inc in the same folder:

GS_LIST += $(DIR)/app.cgs

[Anonymous]

Sorry, this works well. I had a syntax error: GS_LIST -->CGS_LIST

ALL OK!!!

Thanks a lot.