142 lines
2.9 KiB
Plaintext
142 lines
2.9 KiB
Plaintext
(* Example from Nicolas Berthier *)
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node transceiver(enter_tx,
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enter_rx,
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exit_rx,
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calibrate,
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sleep,
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wake_up,
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irq_tx_done,
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irq_on_packet,
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irq_end_of_packet,
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irq_end_of_calibration,
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irq_fifo_threshold,
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ok:bool) returns (red:bool)
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let
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automaton
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state Idle
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do
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red = false;
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until enter_tx & ok then Tx
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| calibrate & ok then Calibrate
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| sleep & ok then Sleep
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| enter_rx & ok then Rx
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state Tx
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do
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red = true;
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until irq_tx_done then Idle
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state Calibrate
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do
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red = false;
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until irq_end_of_calibration then Idle
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state Sleep
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do
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red = false;
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until wake_up & ok then Idle
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state Rx
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do
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red = true;
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until irq_on_packet then Rx_Packet
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| exit_rx & ok then Idle
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state Rx_Packet
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do
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red = true;
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until irq_end_of_packet then Idle
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end
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tel
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node adc(adc_on,adc_off,ok:bool) returns (o:bool)
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let
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automaton
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state Off
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do
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o = false;
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until adc_on & ok then On
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state On
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do
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o = true;
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until adc_off & ok then Off
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end
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tel
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node main_rt(enter_tx,
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enter_rx,
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exit_rx,
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calibrate,
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sleep,
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wake_up,
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irq_tx_done,
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irq_on_packet,
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irq_end_of_packet,
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irq_end_of_calibration,
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irq_fifo_threshold,adc_on,adc_off:bool)
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returns (a_on,red:bool)
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contract
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enforce (not (a_on & red)) with (ok_r,ok_a:bool)
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let
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a_on = inlined adc(adc_on,adc_off,ok_a);
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red = inlined transceiver(enter_tx,
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enter_rx,
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exit_rx,
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calibrate,
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sleep,
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wake_up,
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irq_tx_done,
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irq_on_packet,
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irq_end_of_packet,
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irq_end_of_calibration,
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irq_fifo_threshold,ok_r);
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tel
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node period<<n,ini:int>>() = (s:bool)
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var c:int;
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let
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c = ini fby (if s then 1 else c + 1);
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s = c = n;
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tel
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(* CHECK main *)
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node main() returns (ok:bool)
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var enter_tx,
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enter_rx,
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exit_rx,
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calibrate,
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sleep,
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wake_up,
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irq_tx_done,
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irq_on_packet,
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irq_end_of_packet,
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irq_end_of_calibration,
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irq_fifo_threshold,adc_on,adc_off:bool;
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a_on,red:bool;
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let
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(a_on,red) = main_rt(enter_tx,
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enter_rx,
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exit_rx,
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calibrate,
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sleep,
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wake_up,
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irq_tx_done,
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irq_on_packet,
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irq_end_of_packet,
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irq_end_of_calibration,
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irq_fifo_threshold,adc_on,adc_off);
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ok = not (a_on & red);
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enter_tx = period<<27,25>>();
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enter_rx = period<<27,9>>();
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exit_rx = period<<27,1>>();
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calibrate = period<<27,19>>();
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sleep = period<<27,14>>();
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wake_up = period<<27,11>>();
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irq_tx_done = period<<27,21>>();
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irq_on_packet = period<<27,8>>();
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irq_end_of_packet = period<<27,4>>();
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irq_end_of_calibration = period<<27,16>>();
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irq_fifo_threshold = period<<27,3>>();
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adc_on = period<<17,13>>();
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adc_off = period<<17,4>>();
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tel
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