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Pin
Function
Perspective (USB-SWD Programmer Board)
2
CTS
Input
3
V
DD
Input/Output (SW6)
4
TX
Output
5
RX
Input
6
RTS
Output
The Bx600 modules can be directly connected to the UART header by plugging it in. Note that the top of the Bx600 module
(with the BL600 facing upwards) is inserted facing downwards into the USB-SWD programmer board (with the components of
the USB-SWD programming facing upwards):
The Bx600 expects a baud rate of 9600 with flow control enabled by default. Due to silicon constraints of the nRF51, the SWD
programmer should be operating at 3.3v, otherwise the flash of the nRF51 silicon in the connected BL600 module cannot be
written to.
The Pinnacle 100 development board can be directly connected to the UART header by plugging it in. The GND pin names
should align. For example, to the HL7800 debug UART port. Note that the operating voltage must be set to 1.8v or damage
may be caused to the equipment.