Hi, I'm developing my own bluetooth module using CC2540 like HM10.
I configured the circuit as shown in the following photo and succeeded in firmware(CC2541hm10v540.bin) update using CCLoader.exe.
And then,
I want to using uart and make sure it works normally through the AT command in the serial monitor
(AT ->OK) So, I connect digital 2,3 pin to cc2540(p1_6 ,p1_7).
But I could not get any signal.
I want to know which pin of the cc2540 is used for uart communication and how to connect it.
I also wonder if there are any additional elements that are needed to construct the BLE module.(like pull up resistor).
please help me...
