CC2564MODN : Communication hang in BLE mode during operation

Saurabh Patel1

Other Parts Discussed in Thread: CC2564MODN

I am using CC2564MODN module in my application.

Issue : The communication hang between phone and "my device" after some seconds of activity when i use BLE(Bluetooth Low Energy) mode(Gatt profile) for data transfer and after that there is no way to discover "my device" from any phone except restart of "my device".The same communication works on Classic mode (SPP profile) long time without any interruption.The essential requirement is to use BLE mode on "my device" since the application is low power.

I am using Bluetooth host stack from dotStack and they confirmed that something going wrong with Bluetooth module.

Please help me to resolve this issue.

over 10 years ago

0 Joseph Gigi over 10 years ago

TI__Guru* 85400 points

Hi,

Are you using the latest service pack (http://processors.wiki.ti.com/index.php/CC256x_Downloads)?

Regards,
Gigi Joseph.

0 Saurabh Patel1 over 10 years ago in reply to Joseph Gigi

Prodigy 60 points

Thanks Joseph for prompt response.

We are using 1.0 service pack in stack.

Is it resolve my issue if i update service pack with latest one?

Regards,

Saurabh Patel

0 Sundeep Javvaji over 10 years ago in reply to Saurabh Patel1

TI__Mastermind 32615 points

Hi,

There are few BLE stability related fix's on the latest SP. If you still see the issue could you please provide us the sniffer logs.

0 Saurabh Patel1 over 10 years ago in reply to Sundeep Javvaji

Prodigy 60 points

Hello Sundeep,

Thanks for the response!!

We tried with new service pack 1.1 after got your response. We tried many tests with updated SP firmware but the behavior seems very random and similar with earlier firmware (Old SP 1.0).

I'll post log soon. But meanwhile, you have any other solution which i can try at my end to resolve this issue.

Best Regards,

Saurabh Patel

0 Saurabh Patel1 over 10 years ago in reply to Saurabh Patel1

Prodigy 60 points

Hello Sundeep,

@Brief updates - The issue like communication hang up over BLE is resolved after updating service pack to 1.1. We are using dotStack as a host stack.

I have two more queries which are listed below

1) We have MICROPHONE in hardware directly connected to BT module (CC2564MODN) with I2S interface. Can i have short description to configure the Bluetooth module and test MIC?

2) How I configured BT module to reduce TX power?

Looking for your support!!

Thanks
Saurabh Patel

0 Joseph Gigi over 10 years ago in reply to Saurabh Patel1

TI__Guru* 85400 points

Hi Saurabh,

The VS command wiki is available at: processors.wiki.ti.com/.../CC256x_VS_HCI_Commands
For reducing the Tx power, you must modify the service pack via the Bluetooth Hardware Evaluation Tool (processors.wiki.ti.com/.../CC256x_Bluetooth_Hardware_Evaluation_Tool)

Regards,
Gigi Joseph.

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CC2564MODN : Communication hang in BLE mode during operation