Smart Bluetooth Forum Discussions

I have to firmware upgrade in 20732 and SDK 1.1.0

I've replace EEPROM 64Kbyte. but I can't find to set EEPROM

Let me know how to set EEPROM

It appears that in the 2.x environment that this is the default setup:

However, I'm not seeing any movement on the TX and RX lines on my scope.  I am able to program and run the sample apps on my board and am basing my code on the mybeacon sample app.

What do I need to do to enable debug out?

I'm using Wiced-Smart SDK2.0.1.

For make some functions operate without interrupt, I'd like to control interrupt like cli/sei.

Does anybody know this?

Thank you.

Hi,

Please advise what is the AMR for RF input Power Level for the BCM20732 Bluetooth SOC

Thanks,

Shai ,

Hello,

I'm getting kicked by the watchdog when calculating the CRC of a file (~9K) during the OTA upgrade.

As I read on the forum, the watchdog timer is ~2s. I managed no to be kicked by calling cfa_kickWatchdog on every iteration but my question is: how to know when we should call it before getting kicked ? I don't want to call it too often.

Thanks.

Hi,

My company about to use the BCM20736S in new products and we have not done any Windows application to communicate with BLE before. Do your API will support VB.NET or C#? If so, can you please send me the link where to get sample codes in VB.NET or C# that I can learn.

Thanks,

John

Hello, A customer of mine wants to interface the BCM920732S to 3 sensors, each sampling at 1Khz. Looking at the  BCM920732S , with an ADC of 16bit resolution then he needs to send the following: 1000 x 16 x 3 = 48Kbit/sec Looking at BLE there is a transmission Rate on air data rate: of 1Mbps But in detail, is it correct that BLE has a 7.5ms connection interval and can send 6 packets of 20 bytes in each interval so actual throughput is: (1000/7.5)*20*6= 16Kbyte/sec or 128Kbit/sec Would anyone confirm if BLE should be OK to transfer this 48Kbit/Sec sensor data, I guess so. ? Thanks Mark

I am seeing a very unusual current draw pattern in my application. 

I have set my connection interval to about .5 seconds to achieve low power, and the system is generally sleeping between intervals.  My application sends 4 notifications per second on average. 

When I measure the current used by the application, I can clearly see the connection times, and usually between those times the current is very low.  However, sometimes, it burns about 2mA between the two intervals.

Here are some plots showing the pattern:

The x axis is seconds and the Y axis is microamps.  The current sampling rate is 5KHz. The baseline is close to 0; the peaks during transmit are around 25mA (this is using TX power level of 2dB).  The weird times it has a new baseline of 2mA minimum.

Here is a zoomed in view.  You can see other stuff going on at 10Hz, and then when this weird thing happens...

You can see some periodicity to the observed current.

This looks a little bit similar to problems we had in the past with the PMU clock warmup time.  We have the value set to 5000 currently.

This is using the TN1337 lot code.