Silicon Laboratories EZRADIOPRO Si4060, Руководство по программированию

Страница: 29 / 86

AN633
Rev. 0.7 29
The commented lines explain which API property/properties will be overwritten with new value(s). For example,
this definition is responsible for initializing three API properties of the radio at one time, "MODEM_MOD_TYPE",
"MODEM_MAP_CONTROL", and "MODEM_DSM_CTRL". The format of the definition is as follows:
 The first byte is the command ID of the "SET_PROPERTY" API command.
 The next three bytes are the requirements of the command:

MSB of the starting location of the API property

Number of the immediate adjacent API properties

LSB of the starting location of the API property
 Finally, the values of the properties set by the command.
Figure 24. Structure of “SET_PROPERTY” API Command
The "Radio Setup Configuration" section is intended only for the example project. This part only has a C-like
structure, called "Radio_Setup_Configuration_Array", that contains the previously mentioned definitions with the
modification that the first element is the length of the API command. The format of the definition remains almost the
same but the length field is added. The importance of the extended structure is to build the appropriate format of
the input parameter for the 'Si446x_configuration_init(…)' function. The format of a line from the array is as follows:
Figure 25. One Element of the Radio Setup Configuration Section
The "Specific Configuration of the Example Project" section is intended for the example project. It contains some
specific definitions for the example application such as which channel is selected either for the transmission or for
the reception. The content of the custom packet is initialized in this section. It also contains WDS calculator-related
information in the commented lines.
/**
* crys_freq xtaltol ifmode hipfm_Ch_Fil OSRtune chfil_sw_AFC ant_div pm_pattern
* 30000000 20 2 1 0 0 0 0
*
* mod_type Rsymb(sps) Fdev(Hz) OOK_BW(Hz) Manchester afc_en Rb_error Chip_Version
* 1 40000 83333.3 350000 0 0 0 2
*
* fc(MHz) API_TC fhst hi_pfm_cp BER_mode raw_demod dsource hi_pfm_div
* 915 27 0 0 0 0 0 1
**/
#define CUSTOM_PACKET_TX_CONTENT {SiliconLabs}
#define CUSTOM_PACKET_RX_CONTENT {SiliconLabs}
#define CUSTOM_CHANNEL_NUMBER_TX 0
#define CUSTOM_CHANNEL_NUMBER_RX 0
Command
ID
Starting Property
(MSB)
Number of
Properties
(N)
Starting
Property (LSB)
Value
1
Value
...
Value
N
Command
ID
Length of
API command
Starting
Property
(MSB)
Number of
Properties
(N)
Starting
Property
(LSB)
Value
1
Value
...
Value
N