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Figure 6. Photo of the CC85xx headset board connected to a 50ohm micro coax cable.

6.6 Programming Connector

The Programming connector (see Figure 2) labeled DEBUG is used to program the CC85xx using

the CC Debugger. The pin-out of the programming interface is listed in Table 2. Figure 3 shows

how to connect the CC Debugger to the CC85xx Headset board. For more details about the CC

debugger, see the CC debugger product page [7].

The connector can also be used to connect an external MCU for controlling the CC85xx with the

external host interface. The pins needed for this are GND, CSn, SCLK, MISO, MOSI and RSTN.

For more details about the external host interface, see the CC85xx Family User’s Guide [5]. Note

that the CC85xx Headset board needs to be powered by the battery or the USB while

programming.

Table 2: Program interface pin mapping

CC debugger pin

CC debugger Pin name

CC85xx pin

1

GND

GND

2

Vdd from target

IOVDD

3

DC (Debug Clock)

NC

4

DD (Debug Data)

NC

5

CSn (SPI Chip Select)

CSN

6

SCLK (SPI Clock)

SCLK

7

RESETn

RSTN

8

MOSI (SPI Data Out)

MOSI

9

3.3V Vdd (from debugger)

NC

10

MISO (SPI Data In)

MISO

6.7 Test signals available on P7

Table 3 shows the signals available on the test pads on the back of the board.

Figure 7. Test pad 1