From mboxrd@z Thu Jan 1 00:00:00 1970 From: Geoff Levand Subject: Re: [Help][OMAP_osk_5912]How to get an extra serial port for developing? Date: Mon, 13 Mar 2006 14:02:51 -0800 Message-ID: <4415EC0B.6020905@am.sony.com> References: <20060311164424.2CCCD85317@mailreg.nctu.edu.tw> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20060311164424.2CCCD85317@mailreg.nctu.edu.tw> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-omap-open-source-bounces@linux.omap.com Errors-To: linux-omap-open-source-bounces@linux.omap.com To: Keria Seymour Cc: linux-omap-open-source@linux.omap.com List-Id: linux-omap@vger.kernel.org Keria Seymour wrote: > We all now the OSK5912 board already has a built-in serial port, but could > you tell me how to get an extra port for developing? > > (For our application, we need one serial port for RS-232 connection > Bluetooth and another for console.) The 5912 has two 8250 compatable UARTS, but only the first has a RS232C line driver. You need to add a second (externel) line driver for the second UART. The signals come out on connector P11. Check the schematic diagram. -Geoff