[Oberon] FPGA - nRF24L01 `RPI Net' server

[Jörg]

Tomas

Your change is not a good idea...

1) How would the code following the ReceiveHead() detect whether a timeout
occurred?

2) You wrote "it keeps `0FFH' in buffer". Does it? What does
SCC.ReceiveHead(head1) do?

br
Jörg
-----Original Message-----
From: Oberon [mailto:oberon-bounces at lists.inf.ethz.ch] On Behalf Of Tomas
Kral
Sent: Wednesday, May 23, 2018 5:35 PM
To: Oberon at lists.inf.ethz.ch
Subject: [Oberon] FPGA - nRF24L01 `RPI Net' server

Hi,

I have recoded Net.ReceiveHead() slightly.
  ...
  (*IF ~head1.valid & (Oberon.Time() >= time) THEN head1.typ := 0FFH*)
  END UNTIL head1.valid OR (Oberon.Time() >= time) (*head1.typ = 0FFH*) END
ReceiveHead;

Once the loop falls through on timeout, it keeps `0FFH' in buffer, making it
return immediately before `time' lapses in all subsequent calls. Also `0FFH'
message type is reserved for broadcast, correct?

--
Tomas Kral <thomas.kral at email.cz>
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