CC2570 Datasheet, PDF (22/32 Pages) Texas Instruments – 1- and 8-Channel ANT™ RF Network Processors

CC2570
CC2571
SWRS095A – FEBRUARY 2011 – REVISED MARCH 2011
Class
Response
messages
Test mode
Table 5. ANT Serial Messages (continued)
Message ⁽¹⁾
ID
Description
CHANNEL_STATUS_ID
0x52 Reports the channel status.
CHANNEL_ID_ID
0x51 Reports the channel ID.
VERSION_ID
0x3E Reports the ANT version.
CAPABILITIES_ID
0x54 Reports the capabilities.
RADIO_CW_INIT_ID
0x53 Initialize CW (continuous-wave) mode.
RADIO_CW_MODE_ID
0x48 Start CW mode.
Reply
–
–
–
–
Yes
Yes
www.ti.com
Requested
Yes
Yes
Yes
Yes
No
No
Event
No
No
No
No
No
No
ANT/HOST INTERFACE PROTOCOL
The CC257x has ANT-FS client functionality embedded directly on the chip. This includes the over-the-air
ANT-FS protocol extension and the required file system utilities to manage stored data in non-volatile storage.
This allows the user to connect an EEPROM directly to the CC257x. Raw files can be sent and managed by the
CC257x and downloaded over ANT-FS as desired. The diagram below depicts how to connect an external
EEPROM to the CC257x. The connection is SPI. Note that only EEPROM (not flash) is supported.
Vcc
Vcc
Vcc
EE_CS
EE_MISO
Vcc
R304
100kΩ
R301
100kΩ
U301
1S
2Q
3W
4 _Vss
EEPROM M95XX
VCC ⁸
HOLD ⁷
C6
D5
C300
0.1μF
R302
100kΩ
EE_MOSI
EE_CLK
R303
100kΩ
EE_GND
EE_GND
Figure 19. EEPROM Hardware Setup
S0508-01
If an EEPROM is NOT used, all EEPROM signals should NC (non-connect). The file system and ANT-FS
protocol are managed by using an extended version of the ANT/host serial protocol. For complete details on how
to use this protocol, see the ANT document FS_ANTFS Serial Message.
The extended host/ANT interface uses a 2-byte message ID to identify FS and ANT-FS specific messages. The
packet structure is detailed in Figure 20 and Table 6.
SYNC
LENGTH
ID
DATA1
•••
DATAn
Figure 20. ANT Extended Serial Message Structure
CHECKSUM
M0216-01
22
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