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Re: [Simulavr-devel] SerialRX and feedback example
From: |
Joel Sherrill |
Subject: |
Re: [Simulavr-devel] SerialRX and feedback example |
Date: |
Wed, 8 Apr 2009 10:23:59 -0500 |
User-agent: |
Thunderbird 2.0.0.21 (X11/20090320) |
address@hidden wrote:
On Tue Apr 7 18:35 , Joel Sherrill sent:
address@hidden wrote:
On Tue Apr 7 16:23 , Joel Sherrill sent:
By inserting debug prints, I have confirmed that
the hwuart is shifting the correct data out the
TXD pin. The TXD pin is connected to the RX pin
of a SerialRX instance. All data sampled at the
RX pin is 0 (BAD). Thus all data in the feedback.tcl
display is 0.
From the description, the pins are not connected.
Is the connection done with a Netlist?
If so, perhaps its methods deserve debugging statements.
Net ser_rxD0
SerialRx mysrx $ui "serialRx0" ".x"
SerialRxBasic_SetBaudRate mysrx 9600
ser_rxD0 Add [SerialRxBasic_GetPin mysrx "rx"]
ser_rxD0 Add [AvrDevice_GetPin $dev1 "E1"]
I can't read tcl well enough to tell.
This is a rough translation to C++. The binding is very close
once you get a handle on reading it.
ser_rxD0 = new Net()
mysrx = new SerialRx( ui, "serialRx0, ".x )
mysrx->SetBaudRate(9600)
ser_rxD0->Add( mysrx->GetPin( "rx" ) )
ser_rxD0->Add( dev1->GetPin( "E1" ) )
Where dev1 is an atmega128 instance.
Any suggestions on how I learn to do that?
Did K&R write a tcl book?
I have an old Tcl book which is quite good but the online
docs are excellent.
I think E1 is the atmega128 TXD from reading the code.
And "rx" is the only pin in the SerialRx pin.
More precisely, TXD0.
An atmega128 also has TXD1.
Right. examples/feedback/uart.c is using UART0 so TXD0
and that seems right.
You might want to put printf's in the Netlist methods.
I don't see how to get info on the pin names but I did
put a print in Pin::SetInState (const Pin &p) and the
state is going H/L in what appears to be a reasonable
pattern. SerialRx just somehow isn't seeing it.
My net may not be 100% right but if I hook up an external
pin via Tcl, then I start seeing high/low transitions in
the simfeedback.tcl. But SerialRx always gives 0.
I don't want to have to reconstruct bits into bytes when
there is a class already supposed to do it. But I can't
seem to make it work.
This is deep in the bowels and I don't know what else
to check. The code in CVS demonstrates the problem
but doesn't have any debug prints.
:( frustrated :(
--
Michael Hennebry
address@hidden
"War is only a hobby."
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--
Joel Sherrill, Ph.D. Director of Research & Development
address@hidden On-Line Applications Research
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- [Simulavr-devel] SerialRX and feedback example, Joel Sherrill, 2009/04/07
- Re: [Simulavr-devel] SerialRX and feedback example, address@hidden, 2009/04/07
- Re: [Simulavr-devel] SerialRX and feedback example,
Joel Sherrill <=
- Re: [Simulavr-devel] SerialRX and feedback example, Knut Schwichtenberg, 2009/04/09
- Re: [Simulavr-devel] SerialRX and feedback example, Joel Sherrill, 2009/04/09
- Re: [Simulavr-devel] SerialRX and feedback example, Knut Schwichtenberg, 2009/04/09
- Re: [Simulavr-devel] SerialRX and feedback example, Joel Sherrill, 2009/04/09
- Re: [Simulavr-devel] SerialRX and feedback example, Knut Schwichtenberg, 2009/04/09
- Re: [Simulavr-devel] SerialRX and feedback example, Joel Sherrill, 2009/04/09
Re: [Simulavr-devel] SerialRX and feedback example, address@hidden, 2009/04/08