Nishanth' tech rambles

Thanks to Sergio Aguirre a quick HOWTO: Configure Ubuntu 8.10 for VPN access ( for Cisco vpn ) Basic Requirements : Make sure you have the latest patches and updates for Ubuntu 8.10: sudo apt-get update sudo apt-get upgrade sudo apt-get install vpnc network-manager-vpnc Configuration: 1. Go to System > Preferences > Network Configuration 2. Select VPN tab 3. Click on Add button at the right side of the list 4. choose a vpn connection type: Cisco compatible vpn(vpnc) 5. click on create 6. Enter the following configuration (Other than the specified, leave everything else unchecked): Connection name: CorporateName Connect automatically: enable the checkbox if you would like it to.. Gateway: VPN GATEWAY Group name: VPN GROUP User password: my_user_id Group password: myPassword User name: 5. Click on 'OK' Enabling/disabling VPN access: 1. Left click on network icon in upper bar (next to the clock) 2. Go to VPN connections 3. Select CorporateName for enabling, or Disconnect f...

yes, we have heard of openOCD, Lauterbach, yet till date, I personally have'nt been able to use CCS to debug linux.. This post gives an interesting saga for those interested Warning : it is a little lengthy post, so as of the time of posting: Summary - CCS4 has support for linux kernel aware debugging, and unfortunately there is a small glitch of support of kernels 2.6.26 and above - the ccs team is working on a fix at this point.. hopefully we will have a full soln soon.. Thanks to John in deligently following up on this..

The post is a derivative of the omapzoom wiki page . Disclaimer: my mastery of the wiki tags are dismal.. apologies... some day i hope to have time to post it here Many new developers have been stumped when they need to use git-send-email in corporate environment – usually, if not as a norm, ms exchange servers form the backbone of such an email server system. This page was written based on one of such requirements. To get started, we shall consider common scenarios: a) Setting up a mail forwarding system with postfix on ubuntu b) Setting up a mail forwarding system on a fedora machine c) Using msmtp for using gmail a. to send a patch using a gmail ID b. to send a patch using your corporate ID but through gmail Postfix on Ubuntu – mail forwarding For setting up postfix, you need: a) A mail relay server which will allow your machine to talk to it -> speak to your IT representatives/ other developers sitting next to you b) Super user privileges on the machine you are working on. Step...

TI has a engineer to engineer forum here: http://e2e.ti.com/ forums this allows folks to: a) Get a direct and quick answer for a technical question b) lookup and search for old solutions which might help current problems one might face. Some of the interesting forums are: Code Composer Studio OMAP Application Processor Power Management IC such as TWL5030 TPS derivatives it even allows you to have a email notification and bunch of usual stuff..

Felipe C recently published gst-dsp Source: http://github.com/felipec/gst-dsp/tree/master Webpage: http://code.google.com/p/gst-dsp/ This is an alternative to the gstreamer plugins of gstreamer on TI Davinci and OMAP and openmax for OMAP gstreamer for TI Davinci and OMAP builds on top of dsplink while openMAX for OMAP builds on top of dspbridge -> interestingly gst-dsp builds on top of dspbridge. Try and do comment.. and dont forget to send your patches ;).. I have'nt had much chance to dig much into this new code yet -> but it sure looks sleek and full of potential

This news article was interesting.. hmm... how long before we see the first products in the market in the world of wireless devices?? munching time ;)

Background: Excerpts from the thread here A detailed presentation done by Richard Woodruff can be found here To start this discussion, think what OMAP really is.. OMAP is made of multiple small parts inside it (peripherals) - each peripheral can be individually shut off or switched on as need be. OPP or Operating Points: In fact OMAP could also be used like a car gear, if you need higher processing power, switch to a different "operating point". Each of these operating points is a set of voltage and frequencies that each peripherals and OMAP functions at -> usually the main peripherals of interest from a speed perspective are ARM and DSP, but like a car, when you speed up, you will consume more power.. [BUT unlike a car, during operation, OMAP's carbon footprin t is pretty tiny] Suspend/Resume: Since OMAP is also made up of various peripherals, you can switch off many of these peripherals when not in use, in fact you can have many levels of "switch off" = re...

[discussion thread here ] Few days back looking at OMAP3430 Public TRM I found the section 26.4.8.2(page 3427), it was exciting to see what possibilities lay here.. a little more digging later and few hours of coding later, figured out that by adding a certain data as a prefix to the real image, we can boot u-boot or for that matter any image straight from NAND flash into sdram.. essentially this is what x-loader does, only that OMAP3430 ROMCode already has that feature.. What exactly is Configuration Header(CH)? CH is a set of register values to the critical OMAP registers that define how the clocks, sdram controller, gpmc controller, mmc controllers are configured.. it is more like an array of register values - you fill them up with the correct values, and store the load address you would like the resultant image to load up, bingo, we have the image booting off that location.. There are few of these structures that are defined in the TRM which has a detailed description on the real...