From mboxrd@z Thu Jan 1 00:00:00 1970 From: miaofng Date: Mon, 26 Oct 2009 21:01:41 +0800 Subject: [U-Boot] [PATCH] add u-boot sja1000/can support In-Reply-To: <200910260441.14893.vapier@gentoo.org> References: <200910241217470153391@gmail.com> <200910261248270312273@gmail.com> <200910261629132341038@gmail.com> <200910260441.14893.vapier@gentoo.org> Message-ID: <4AE59DB5.2020007@gmail.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de It seems there's a big difference between my current project >> and u-boot common usage. I can only enjoy the patch myself now >> >> i want to get a packet from usb/network, then redirect it to can bus. >> So blocked write/read of can is not allowed. >> > > what's wrong with receiving data over usb/network into external memory, then > transferring it over CAN ? this is typically how things are done -- load an > file over the network and once it is complete, operate on it (write it to > flash, boot it, whatever). > -mike > It seems a good method, especially when we download a file from computer. But i'm afraid u-boot doesn't support upload well. Basically I agree blocked CAN read/write can fulfill my requirement, even though it's not so flexible as what i wished.