COPYRIGHT @ 2012 Shenzhen V-CHIP MICROSYSTEMS Co. Ltd
VERSION:
VT-CC1121-APR-2012
VT-CC1121-433M
VT-CC1121-433M
VT-CC1121-433M
VT-CC1121-433M
Questions
Questions
Questions
Questions and
and
and
and Answers
Answers
Answers
Answers
Description
Description
Description
Description
Reason
Reason
Reason
Reason and
and
and
and Solution
Solution
Solution
Solution
Can’t
communication
1
．
The power supply connect not well, check the module VCC whether it is out of maximum
rating.
2
．
The signal line connect not well, check the module SPI interface.
3
．
The settings of the transmitter module and receiver module are not the same. Check these
modules’ register configuration.
4
．
Signal block. If the transmitter work with a high TX power, and the receiver was put at a short
distance(<0.5m), maybe there is a signal block to make no communication.
Communication
distance is too
short
1
．
The application environment is too bad or the antenna is shield. Put the antenna to a better place
outside or higher throw a coaxial line , replace it with a higher gain antenna.
2
．
The work space contains a same frequency interference source, or a strong magnetic field
interference, power source disturbance. Try to change the carrier frequency or get far away from
the source of the disturbance.
3
．
The power supply is not strong. Check the voltage and the current whether it is enough.
High data error
1
．
The power supply ripple is too big, Change the power supply.
2
．
Check the module register configuration, it is recommended to set as the CC1121-datasheet.
3
．
There is a carrier frequency interference, change the channel.
4
．
The antenna unmatched to the module RF interface, change another matched antenna.
Development
Development
Development
Development Package:
Package:
Package:
Package:
1.
CC1121 datasheet
（
CC1121.pdf
）
2.
CC1121 register configuration tool
（
SmartRF Studio 7 v1.4.9.zip
）
3.
CC1121 demo code (CC1121 Demo Code.rar
）
4.
Hard ware tools
（
TI Chipcon Evaluation Board
）
Note
Note
Note
Note
：
1
1
1
1
．
You
You
You
You can
can
can
can get
get
get
get the
the
the
the development
development
development
development package
package
package
package above
above
above
above from
from
from
from the
the
the
the salesman
salesman
salesman
salesman when
when
when
when you
you
you
you order
order
order
order the
the
the
the module.
module.
module.
module.
2
2
2
2
．
As
As
As
As version
version
version
version update
update
update
update
，
please
please
please
please refer
refer
refer
refer to
to
to
to our
our
our
our latest
latest
latest
latest development
development
development
development materials.
materials.
materials.
materials.
