Data sent limited when transmitting from nrf52810 to IOS phone

[jerry]

Hi,

I have a product that needs to send 256 bytes of data to an IOS or Android phone upon request from phone. We are currently using the Nordic UART app to receive the data. The BAUD rate is 9600. 

The micro attached to the Nrf52810 currently just sends the 256 bytes out to the nrf52810 via UART. When I use an Android phone, I receive all 256 bytes in 2 packets. The first being 244 bytes then the remaining 12 bytes in a second packet. When I use a IOS phone  we only get about 182 bytes and  then13 byte of data, the rest is lost. 

What do I need to do? Use flow control? I did not hook up the flow control pins on the PCB, so is there XON,XOF control? 

Please help.

Thanks,

Jerry

[Simonr]

Hi again,

Yes, seeing as you will have to use two packets to transfer all the data either way, there shouldn't be an issue sending 128 bytes per packet. 

Best regards,

Simon

[jerry]

Simon,

Thank you. Does the nrf52810 support flow control? I'd rather use that then a fixed delay. The nrf52810 is in a module we purchase from Raytac, that uses AT commands. The module has hardware pins for flow control, but I did not tie them to the micro on our PCB board, so I would prefer XON,XOFF control. Is that function a part of the nrf52810 or is that a function of the Raytac program?

Thanks Again,

Jerry