RF-Star RF-BT02 User manual

RF-BT02
www.szrfstar.com V1.2 - Mar., 2021
Shenzhen RF-star Technology Co., Ltd. Page 1 of 51
RF-BT02 Test Board User Guide
Version: 1.2
Shenzhen RF-star Technology Co., Ltd.
March 25th, 2021

RF-BT02
www.szrfstar.com V1.2 - Mar., 2021
Shenzhen RF-star Technology Co., Ltd. Page 2 of 51
Table of Contents
Table of Contents................................................................................................................................................................ 2
Table of Figures................................................................................................................................................................... 3
Table of Tables..................................................................................................................................................................... 4
1 Product Overview ........................................................................................................................................................... 5
1.1 Functions and Resources............................................................................................................................... 5
1.2 Adapter Modules ................................................................................................................................................ 6
1.3 Pin Description.................................................................................................................................................... 7
◆nRF52832/nRF52810 Series ............................................................................................................. 7
◆nRF52805 Series..................................................................................................................................10
◆EFR32BG22 Series .............................................................................................................................13
◆CC2540/CC2541 Series ....................................................................................................................17
◆CC2640R2F/CC2640R2L Series....................................................................................................20
◆RS02A1-A Series..................................................................................................................................24
◆RS02A1-B Series .................................................................................................................................27
1.4 Schematic Diagram of RF-BT02................................................................................................................30
2 Transparent Transmission Introduction for Use................................................................................................31
2.1 Preparation of Hardware and Software...................................................................................................31
◆EFR32BG22 Series .............................................................................................................................31
◆nRF52832/nRF52810 Series ...........................................................................................................32
◆nRF52805 Series..................................................................................................................................33
◆CC254x, CC2640R2x and RS02A1-x Series ............................................................................34
2.2 Transparent Transmission Test by APP (Android) ..............................................................................37
3. MCU Reference Code (Transparent Transmission) ......................................................................................40
3.1 Non-Flow Control Module.............................................................................................................................40
3.2 Standard Hardware Flow Control Module..............................................................................................42
4 Secondary Development ...........................................................................................................................................43
4.1 Downloads Address of Writer, DK and SDK..........................................................................................43
4.2 Pin Description during Burning...................................................................................................................44
◆nRF52832/nRF52810 and nRF52805 Series............................................................................44
◆EFR32BG22 Series .............................................................................................................................45

RF-BT02
www.szrfstar.com V1.2 - Mar., 2021
Shenzhen RF-star Technology Co., Ltd. Page 3 of 51
◆CC254X, CC2640 and RS02A1-x Series....................................................................................46
5 Trouble Shooting...........................................................................................................................................................49
5.1 Unsatisfactory Transmission Distance ....................................................................................................49
5.2 Vulnerable Module...........................................................................................................................................49
5.3 High Bit Error Rate ..........................................................................................................................................49
6 Revision History ............................................................................................................................................................50
7 Contact Us.......................................................................................................................................................................51
Table of Figures
Figure 1. Function Area Distribution................................................................................................................... 5
Figure 2. Pin Diagram RF-BT02 (Left) and RF-BM-ND08/RF-BM-08C (Right)................................ 7
Figure 3. Pin Diagram RF-BT02 (Left) and RF-BM-ND09 (Right)........................................................10
Figure 4. Pin Diagram RF-BT02 (Left) and RF-BM-BG22A1/A2/A3 (Right) ....................................13
Figure 5. Pin Diagram RF-BT02 (Left) and RF-BM-S02/RF-BM-S02A/RF-BM-S02I (Right) ....17
Figure 6. Pin Diagram RF-BT02 (Left) and RF-BM-4044B2/RF-BM-4044B3/RF-BM-4055B1L
(Right) .................................................................................................................................................................20
Figure 7. Pin Diagram RF-BT02 (Left) and RSBRS02AA/RSBRS02AI (Right)..............................24
Figure 8. Pin Diagram RF-BT02 (Left) and RSBRS02ABR/RSBRS02ABRI (Right) ....................27

RF-BT02
www.szrfstar.com V1.2 - Mar., 2021
Shenzhen RF-star Technology Co., Ltd. Page 4 of 51
Table of Tables
Table 1. Function Area Description..................................................................................................................... 6
Table 2. Table of Adapter Modules ..................................................................................................................... 6
Table 3. Pin Correspondence between RF-BM-ND08 and RF-BT02 ................................................... 7
Table 4. Pin Functions of RF-BM-ND08/RF-BM-ND08C ........................................................................... 8
Table 5. Pin Correspondence between RF-BM-ND09 and RF-BT02 .................................................10
Table 6. Pin Functions of RF-BM-ND09(A) ...................................................................................................11
Table 7. Pin Correspondence between RF-BM-BG22A1/A2/A3 and RF-BT02 ..............................13
Table 8. Pin Functions of RF-BM-BG22A1/A2/A3 ......................................................................................15
Table 9. Pin Correspondence between RF-BM-S02/RF-BM-S02A/RF-BM-S02I and RF-BT02
...............................................................................................................................................................................17
Table 10. Pin Functions of RF-BM-S02/RF-BM-S02A/RF-BM-S02I ...................................................18
Table 11. Pin Correspondence between RF-BM-4044B2/RF-BM-4044B3/RF-BM-4055B1L and
RF-BT02 ............................................................................................................................................................20
Table 12. Pin Functions of RF-BM-4044B2...................................................................................................21
Table 13. Pin Correspondence between RSBRS02AA/RSBRS02AI and RF-BT02 .....................24
Table 14. Pin Functions of RSBRS02AA/RSBRS02AI .............................................................................25
Table 15. Pin Correspondence between RSBRS02ABR/RSBRS02ABRI and RF-BT02............27
Table 16. Pin Functions of RSBRS02ABR/RSBRS02ABRI....................................................................28

RF-BT02
www.szrfstar.com V1.2 - Mar., 2021
Shenzhen RF-star Technology Co., Ltd. Page 5 of 51
1 Product Overview
RF-BT02 development board is a complete set of test products formed by a serial port module and a USB to UART
baseboard for customer testing and development, which greatly reduces the difficulty of customers’ testing and
development. This user guide describes how to use the development board. For more information about our products,
please visit the official website: www.szrfstar.com.
1.1 Functions and Resources
The function area distribution is shown in Figure 1 and Table 1.
Figure 1. Function Area Distribution

RF-BT02
www.szrfstar.com V1.2 - Mar., 2021
Shenzhen RF-star Technology Co., Ltd. Page 6 of 51
Table 1. Function Area Description
Area
Name
Function
A
Module expansion area
The adapter modules are shown in Table 2.
B
Pin output area
All pins are pulled out, which is convenient for the test.
C
USB-to-UART area
USB-to-UART function can be used as a USB to TTL tool when
there is no module.
D
3.3 V power supply area
Output voltage 3.3 V / 5 V
E
Button function area
Reset by pushing buttons
1.2 Adapter Modules
Table 2. Table of Adapter Modules
EFR32BG22Cx
nRF52832/10
nRF52805
CC2640R2F/L
CC2540/1
RS02A1-A/B
RF-BM-BG22A1
RF-BM-ND08
RF-BM-ND09
RF-BM-4044B2
RF-BM-S02
RSBRS02AA
RF-BM-BG22A2
RF-BM-ND08C
RF-BM-ND09A
RF-BM-4044B3
RF-BM-S02A
RSBRS02AI
RF-BM-BG22A3
RF-BM-4055B1L
RF-BM-S02I
RSBRS02ABR
RSBRS02ABRI

RF-BT02
www.szrfstar.com V1.2 - Mar., 2021
Shenzhen RF-star Technology Co., Ltd. Page 7 of 51
1.3 Pin Description
◆nRF52832/nRF52810 Series
Figure 2 is the pin diagram of RF-BT02 and RF-BM-ND08/RF-BM-ND08C, Table 3 shows the pin correspondence
between the RF-BM-ND08/RF-BM-ND08C module and the development board, where A1 ~ A18 correspond to pin 2 ~
pin 19 of the module, Table 4 shows the detailed pin description of the RF-BM-ND08/RF-BM-ND08C. Please refer to the
appendix for detailed pin descriptions of other modules.
Figure 2. Pin Diagram RF-BT02 (Left) and RF-BM-ND08/RF-BM-08C (Right)
Table 3. Pin Correspondence between RF-BM-ND08 and RF-BT02
Outside Pins of
RF-BT02
Description
Inside Pins of
RF-BT02
Description
B1
GND
A1
GND. Need to short-circuit via the jumper.
B2
VCC
A2
VCC. Need to short-circuit via the jumper.
B3
GND
A3
P25
B4
GND
A4
Broadcast indicator (P17)
B5
Reset
A5
RESET (P21)

RF-BT02
www.szrfstar.com V1.2 - Mar., 2021
Shenzhen RF-star Technology Co., Ltd. Page 8 of 51
B6
GND
A6
Wake-up IO (P13)
B7
GND
A7
P28
B8
GND
A8
P27
B9
GND
A9
P26
B10
GND
A10
P09
B11
GND
A11
P10
B12
GND
A12
RESTORE (P19)
B13
GND
A13
P20
B14
GND
A14
RTS (P05)
B15
GND
A15
Module CTS. Need to short-circuit via the jumper.
(P07)
B16
RXD (CP2102)
A16
Module TX. Need to short-circuit via the jumper. (P06)
B17
TXD (CP2102)
A17
Module RX. Need to short-circuit via the jumper. (P08)
B18
GND
A18
P03
B19
GND
B20
VCC (5 V)
B21
VCC (3.3 V)
B22
RXD (CP2102)
B23
TXD (CP2102)
B24
RESET
B25
SWD (J-Link)
B26
SWC (J-Link)
B27
VCC (3.3 V)
B28
GND
Table 4. Pin Functions of RF-BM-ND08/RF-BM-ND08C
Pin
Name
Chip Pin
I/O
Description
A1
GND
GND
-
Ground
A2
VCC
VCC
-
Power supply 1.7 V ~ 3.6 V, Recommend 3.3 V
A3
-
P25
I/O
A4
Status
indication
P17
-
Slave mode (including Beacon) connection status indicator: low
when connected, LED always on under connection.

RF-BT02
www.szrfstar.com V1.2 - Mar., 2021
Shenzhen RF-star Technology Co., Ltd. Page 9 of 51
A5
RESET
P21
I/O
Reset pin, active low.
A6
Wake-up IO
P13
I
It can wake up the module when the module is in sleep state.
Falling edge valid.
A7
-
P28
I/O
A8
-
P27
I/O
A9
-
P26
I/O
A10
-
P09
I/O
A11
-
P10
I/O
A12
RESTORE
P19
-
Keep this pin at a low level for 3 s, all parameters are restored to
factory settings.
A13
-
P20
I/O
A14
RTS
P05
O
The module output signal (Standard hardware flow control: Require
To Send). When it is at a high level, the module serial port is busy,
and the MCU is not allowed to send data to the module serial port.
When it is at a low level, the MCU is allowed to send data to the
module serial port.
A15
CTS
P07
I
The module input signal (Standard hardware flow control: Clear To
Send). When it is at a high level, the MCU serial port is busy, and
the module will not send data to the MCU serial port. When it is at
a low level, the module will send data to the MCU serial port.
A16
TX
P06
O
Serial port TX
A17
RX
P08
I
Serial port RX
A18
-
P03
I/O

RF-BT02
www.szrfstar.com V1.2 - Mar., 2021
Shenzhen RF-star Technology Co., Ltd. Page 10 of 51
◆nRF52805 Series
The following figure 3 is the pin diagram of RF-BT02 and RF-BM-ND09 (bottom view). Table 5 shows the pin
correspondence between the module and the development board. Table 6 shows the module detailed pin description.
Figure 3. Pin Diagram RF-BT02 (Left) and RF-BM-ND09 (Right)
Table 5. Pin Correspondence between RF-BM-ND09 and RF-BT02
Outside Pins of
RF-BT02
Description
Inside Pins of
RF-BT02
Description
B1
GND
A1
B2
VCC
A2
B3
GND
A3
B4
GND
A4
B5
Reset
A5
RESET
B6
GND
A6
P18
B7
GND
A7
B8
GND
A8