Silicon Laboratories Si4012, Руководство по программированию

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AN746
Rev. 0.1 15
The
SampleCode_Demo_Pollhandler()
includes a state machine, and the different states represent the
previously mentioned tasks.
1. SM_START:

Turn off the Si4012 RFIC

Check if the RF EBID is available on the Pico board

Read the EBID content to determine the radio type and the frequency band
Having detected the RF Pico board successfully, the next state will configure the Si4012 RFIC.
2. SM_STEP1:

Configure the radio with the WDS generated parameters

Turn on the fourth LED on the LCD baseboard
Having configured the RFIC successfully, the next state will execute the user application code.
3. SM_STEP2:

User application code can be started from this point.
The state of
SM_STEP1
simply configures the chip by calling the
Si4012_Configure()
function. The fourth LED will
be turned on if there were no failures during the radio initialization. If any kinds of failures occurred either in
SM_START or in SM_STEP1 states, for example, communication error, configuration error, or unavailable RF Pico
board, the program execution will be forced to the
ERROR_HOOK
immediately. The fourth LED will then blink
rapidly to indicate that the error detection occurred.
The state of
SM_STEP2
can contain the user application code. Since it is an empty project, it does not execute any
code after the radio initialization.