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CC2541 KeyFob Quick Disconnection Issue of Reading Accelerometer via I2C Interface

son1121

Prodigy 150 points

Dear Sir/Madam,

I have modified KeyFob source code from SPI to I2C (Don't change code architecture). Reading/Writing Registers via I2C Interface works fine in debug mode but quick disconnection happened when I run atomax App in the iPhone 4S to connect KeyFob. Could you please do me a favor for this issue?

Thanks & Regards

Stevenson Chen

over 13 years ago

0 GregS over 13 years ago

TI__Expert 6840 points

The quick disconnect is usually the iPhone rejecting the connection parameter ranges. The wiki has example mod to peripheral.c to account for this.

Br

Greg

0 son1121 over 13 years ago in reply to GregS

Prodigy 150 points

Dear Greg Sir,

Many thanks for your reply and teachings.

I have refered to the following URL link.

http://e2e.ti.com/support/low_power_rf/f/538/t/167385.aspx

http://processors.wiki.ti.com/index.php/Category:BluetoothLE

Which is the right example to peripheral.c modification for this issue?

Please feel free to advise again.

Thanks & Regards

Stevenson Chen

0 son1121 over 13 years ago in reply to son1121

Prodigy 150 points

Dear Sir/Madam,

I have modified peripheral.c according to the former mention but the same issue happened again.

Please help.

Thanks & Regards

Stevenson Chen

0 Gaurav Jain11 over 12 years ago

Prodigy 50 points

Hi,

Check whether your I2C communication is on polling or interrupt mode. If it is on polling then disconnection may happen .

Thanks ,

Gaurav Jain