From: Andrew Lunn <andrew@lunn.ch>
To: ?yvind Harboe <oyvind.harboe@zylin.com>
Cc: ecos-discuss@ecos.sourceware.org
Subject: Re: [ECOS] Are the HALs in the eCos repository meant for deployment?
Date: Mon, 14 Aug 2006 12:33:00 -0000 [thread overview]
Message-ID: <20060814123346.GX2053@lunn.ch> (raw)
In-Reply-To: <c09652430608140517m17f5146cg8ca5f628bad1c7ec@mail.gmail.com>
> - modifications to the EBI interface. There is no provision in the
> EB40a HAL for configuring the EBI.
This could be done in "application" space. If necassary, use a static
constructor with the appropriate priority. Otherwise do it from
cyg_user_start().
> - The reset on the EB40a HAL does not reset external circuits(or even the
> flash)
Reseting flash has to be done by hardware, not software. If the CPU
does it via software, you are going to get into trouble, when you get
a reboot part way through a flash operation, leaving the flash in
write mode, resulting in yet another crash.
Other bits of hardware should be reset by there respective device
drivers.
> - changes to memory layout
Making the RAM/ROM bigger can sometimes be a problem, granted.
Andrew
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next prev parent reply other threads:[~2006-08-14 12:33 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-13 19:37 Øyvind Harboe
2006-08-14 11:21 ` Gary Thomas
2006-08-14 11:54 ` Øyvind Harboe
2006-08-14 12:00 ` Gary Thomas
2006-08-14 12:08 ` Andrew Lunn
2006-08-14 12:17 ` Øyvind Harboe
2006-08-14 12:33 ` Andrew Lunn [this message]
2006-08-14 12:35 ` Gary Thomas
2006-08-14 12:52 ` Øyvind Harboe
2006-08-14 13:28 ` Bart Veer
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