Rigado Inc. 04 Manual De Usuario
BMD-300 Series Module Datasheet
Bluetooth 4.2 LE
03/23/2016
BMD-300-DS-V0.9.4
Page 6 of 25
Pin
Name
Direction
Description
36
P0.18
In/Out
GPIO/TRACEDATA[0]/SWO
37
P0.19
In/Out
GPIO
38
P0.20
In/Out
GPIO/TRACECLK
39
P0.21
In/Out
GPIO/ RESET
̅̅̅̅̅̅̅̅
1
40
P0.22
In/Out
GPIO
3
41
P0.23
In/Out
GPIO
3
42
P0.24
In/Out
GPIO
3
43
SWCLK
In
SWD Clock
44
SWDIO
In/Out
SWD IO
17
VCC
Power
+1.7V to +3.6V
2
1, 2, 3, 4, 5, 16, 18, 29,
30, 45, 46, 47
30, 45, 46, 47
GND
Power
Electrical Ground
Note 1: The RESET
̅̅̅̅̅̅̅̅
function can be assigned to another GPIO during programming. P0.21 is the default used by Rigado
and Nordic example applications and development kits.
Note 2: An internal 4.7µF bulk capacitor is included on the module. However, it is good design practice to add additional
bulk capacitance as required for your application, i.e. those with heavy GPIO usage and/or current draw.
Note 3: These pins are in close proximity to the nRF52 radio power supply and antenna pins. Radio performance
parameters, such as sensitivity, may be affected by high frequency digital I/O with large sink/source current on these
pins. Nordic recommends using only low frequency, low-drive functions when possible.
Note 2: An internal 4.7µF bulk capacitor is included on the module. However, it is good design practice to add additional
bulk capacitance as required for your application, i.e. those with heavy GPIO usage and/or current draw.
Note 3: These pins are in close proximity to the nRF52 radio power supply and antenna pins. Radio performance
parameters, such as sensitivity, may be affected by high frequency digital I/O with large sink/source current on these
pins. Nordic recommends using only low frequency, low-drive functions when possible.
Table 3 – Pin Descriptions
6.1 RigDFU Pin Functions
Rigado RigDFU is programmed on the BMD-300 Series at the factory. Two GPIO pins are configured as UART pins
for transferring new firmware images to the BMD-300. Pins are configured only when bootloader is running, and
are fully available to the application firmware. RigDFU can be removed from the BMD-300 by performing a full-
chip erase.
for transferring new firmware images to the BMD-300. Pins are configured only when bootloader is running, and
are fully available to the application firmware. RigDFU can be removed from the BMD-300 by performing a full-
chip erase.
Pin
Name Direction
RigDFU Functions
22
P0.06
Out
UART TX for bootloader
Hi-Z until bootloader activation message received on UART RX.
24
P0.08
In
UART RX for bootloader
Internal 12kΩ pull-down enabled
Table 4 – RigDFU Functions