BLE interfacing with i.MX6 over UART

[rahulsoni]

Hi NXP Team,

We have a device in which we are using MCIMX6L8DVN10AA processor.We want to add BLE functionality into the device.For this, we are planning to use CC2640 Bluetooth Smart IC.

In CC2640 only 2 UART lines (RX and TX) are available for communication.

In processor, we have free UART (J19,J21,T20, T21) for UART (Tx, Rx, RTS & CTS lines) to communicate with CC2640 Smart IC.

My Query is:

Is UART 3 HCI Based?

Is there any necessary to use all 4 pins of UART for communicating with CC2640 or we can go for only 2 pins of UART (Tx & Rx) for communication by disabling Flow control

[igorpadykov]

Hi Rahul

in general it is not necessary to use all 4 pins of UART, but flow control

allows to achieve more fast and reliable communication with peripheral.

Best regards
igor
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