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RE: Question on serial ports
- From: "Scott Moore" <smoore at powerfile dot com>
- To: "Scott Moore" <smoore at powerfile dot com>, "Andrew Lunn" <andrew at lunn dot ch>
- Cc: "Ecos-Discuss" <ecos-discuss at ecos dot sourceware dot org>, "Steve Gaskill" <sgaskill at powerfile dot com>
- Date: Fri, 14 Sep 2007 17:04:17 -0400
- Subject: RE: [ECOS] Question on serial ports
Hi, sorry to post on this yet again, but I built both
the p2106 and lpcmt targets, and both appear to have the
same (forgive me) braindamaged I/O as the mcb2100 board
target. I tried:
C:\projects\testbuild>ecosconfig add CYGPKG_IO_SERIAL_GENERIC_16X5X
Package `CYGPKG_IO_SERIAL_GENERIC_16X5X' is already loaded.
And the configurator appears to believe that this is already selected.
However, after building, I don't see the ser_16x5x.o file anywhere
in the build. ser_16x5x.c is the file
../ecos/packages/devs/serial/generic/16x5x/current/src/ser_16x5x which
contains the 16x5x general support. Instead it is including:
09/14/2007 01:47 PM 23,264 io_serial_haldiag.o
09/14/2007 01:47 PM 26,808 io_serial_serial.o
09/14/2007 01:47 PM 21,488 io_serial_tty.o
haldiag is the package that includes the stripped down, polling
mode only I/O.
What's the trick to getting this package (really) included in the
build?
Thank you,
Scott Moore
-----Original Message-----
From: ecos-discuss-owner@ecos.sourceware.org [mailto:ecos-discuss-owner@ecos.sourceware.org] On Behalf Of Scott Moore
Sent: Thursday, September 13, 2007 2:12 PM
To: Andrew Lunn
Cc: Ecos-Discuss; Steve Gaskill
Subject: RE: [ECOS] Question on serial ports
Thank you.
-----Original Message-----
From: Andrew Lunn [mailto:andrew@lunn.ch]
Sent: Thursday, September 13, 2007 2:04 PM
To: Scott Moore
Cc: Ecos-Discuss; Steve Gaskill
Subject: Re: [ECOS] Question on serial ports
> The questions are:
>
> 1. Does this indeed indicate that a full (not diagnostic) serial port
> implementation was never completed for the MCB2100 board?
>
> 2. What was the purpose of the directory
> ../packages/devs/serial/arm/lpc2xxx/..? Was this just a placeholder
> for where a device might go?
Take a look at the targets which use this:
target p2106 {
alias { "Olimex evaluation board LPC-P2106" p2106 }
packages { CYGPKG_HAL_ARM
CYGPKG_HAL_ARM_LPC2XXX
CYGPKG_HAL_ARM_LPC2XXX_P2106
CYGPKG_IO_SERIAL_GENERIC_16X5X
CYGPKG_IO_SERIAL_ARM_LPC2XXX
CYGPKG_DEVICES_WATCHDOG_ARM_LPC2XXX
}
description "
The p2106 target provides the packages needed to run eCos on the
LPC-P2106 evaluation board from Olimex."
}
target lpcmt {
alias { "Olimex evaluation board LPC-LPCMT" lpcmt }
packages { CYGPKG_HAL_ARM
CYGPKG_HAL_ARM_LPC2XXX
CYGPKG_HAL_ARM_LPC2XXX_LPCMT
CYGPKG_IO_SERIAL_GENERIC_16X5X
CYGPKG_IO_SERIAL_ARM_LPC2XXX
CYGPKG_DEVICES_WATCHDOG_ARM_LPC2XXX
}
description "
The lpcmt target provides the packages needed to run eCos on the
LPC-LPCMT evaluation board from Olimex."
}
Looking at this suggests that the LPC2XXX serial driver is just what is needed to make the generic 16x5x serial driver work on LPC targets. Take a closer look at one of the these targets and all should become clear...
Andrew
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