CYBT-343026-01 receive API command but no response sometimes

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YaTr_3516311
Level 5
Level 5
25 sign-ins First solution authored 100 replies posted

Hi,

I use CYBT-343026-01 module with ezserial_343026-CYBT_343026_EVAL-rom-ram-Wiced-release FW. I tested it via uart send API command to it. But find two problems.

1. Command's response is not always back.

For example, I send many times of "/QFV\r\n", but the reponse is not back 100%. And I check the uart data via oscilloscope of the BT module RX, recieve completely OK, but module TX no data. I don't know why? Need I set ".CYSPPSP,E=0"? Or do something for CYSPP pin?Below is the screenshot for RX data.

pastedImage_0.png

2. If I send "/QFV" and "GAD" many times, commans no response(as 1 descriped). Then "GAD" been sent again, but "/QFV" response come back. It is strange.

BR,

Treacy

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1 Solution

Please pull high or down with LP_MODE pin. In the user guide, there is a note for this pin: "Note: LP_MODE should be not left floating. Otherwise, firmware will exhibit unexpected behavior."

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3 Replies
Owen_Zhang123
Moderator
Moderator
Moderator
5 questions asked 500 solutions authored 250 sign-ins

The device may go into sleep mode. Please pull the LP_MODE pin to high and test again.

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Hi OwenZ,

When device will go into sleep mode. Because from I testing, I think it is easily no command response.

My test step:

1. Boot ind

@E,003B,BOOT,E=01010E06,S=05020016,P=0103,H=D1,C=00,A=EF5E2255F84D

@E,000E,ASC,S=01,R=03

2. Send "/QFV\r\n" command, but no response. If I continue to send this command, it will have the command response sometimes.

It's strange.

And I check the document, system_get_sleep_parameters API default value is 0 = Sleep disabled (factory default)

Is there other way to let device don't go into sleep mode(Not modify hardware with LP_mode pin) such as use releated API command?

BR,

Treacy

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Please pull high or down with LP_MODE pin. In the user guide, there is a note for this pin: "Note: LP_MODE should be not left floating. Otherwise, firmware will exhibit unexpected behavior."

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