Create package spec and body for ADC. The analog$-$to$-$digital converter $($ADC$)$ will be used to read throttle values from the hand controller.

Your first task is to create a package specification for the ADC. You can find information on the ADC in the CIO$-$DAS$08/$Jr Register Map in the tcc$-$template's docs directory. Once you have completed the specification, submit it to me for review as a merge request.

Once your specification has been approved, you may implement the body of the ADC driver. Don't forget to make your ADC 'safe' for multiple tasks!!

Note: The multiplexer unit on our ADC occasionally introduces an error when you change channels. To remove this error, do the conversion twice. Use the second value you compute as your result.

Consult the Hand Controller Interface document in the tcc$-$template docs folder for more information about the ADC's address. The pictures are the documents to consult. I need to use this semaphore in the ADA code: $--$ Semaphore to ensure mutual exclusion

protected type ADC$\_$Semaphore is

entry Wait;

procedure Signal;

private

In$\_$Use: Boolean :$=$ False;

end ADC$\_$Semaphore;

protected body ADC$\_$Semaphore is

entry Wait when not In$\_$Use is

begin

In$\_$Use :$=$ True;

end Wait;

procedure Signal is

begin

In$\_$Use :$=$ False;

end Signal;

end ADC$\_$Semaphore;