Blog Archives

Resistive Touch Screen Interface

I did few touchscreen integrations and like to share some of basic understanding: Resistive Touch Screen (RTS) is a low cost and easy to integrate solution of touch panels. RTS is available in with 4/5/8 wires interface. From the operation perspec…

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New Developer Watch with BlueTooth from TI

Few months back, I bought my eZ430 chronos programmable watch. Unfortunately, I have not spend much time with it to experiment my idea on that. No support for Bluetooth is the major blocking factor. It is difficult to do fun stuff with your mobile…

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TI OMAP GPMC Loop-back

Very recently, I started exploring the TI OMAP3x General Purpose Memory Controller (GPMC) module to use it as a high speed interface. Frist, one simple driver module was ready and I was interested to test it with-out the external target device. Be…

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GPMC Burst Mode

NOTE: This entry is used as a reference to my TI E2E Discussion. GPMC Setting: Sync NOR, Multiple Write, Attached Device Page Length 16W. Transmitting 4 Words.only.

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OMAP GPMC Clock Issue

NOTE: This entry is used as a reference to my TI E2E Discussion. Update: Fixed. OMAP Register Settings are correct. But Logic Analyser voltage level threshold was wrongly set to TTL. Due to this, signals are sampled wrong points and showed like gl…

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TI eTech Day and Freescale Workshop

Just on 29th only, I saw a news on OMAP mailing list about the TI eTech Day event, a virtual conference on web. The disappointment for me is the timing, in Singapore time, the starting time is 12AM mid-night. I set the alarm in my cell phone and w…

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RoboCup 2010 Singapore

Yesterday, I visited the RoboCup-2010 Event at Suntec Convention Center. Many participants came from different countries and most of them are young students (may be in secondary school or Jr college). This time the theme is looks like a soccer (fo…

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Minicom and Serial to USB Converter

For an embedded developer, the regular D9 serial port is a very vital interface. Unfortunately, my new development machine is not having the serial port. So I started using the Serial to USB converter. The main issue with this converter is, the de…

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OMAP-L138 VPIF Nightmare

Recently I started working on OMAP-L138 based board, it has many interface. But I interested on Video Port InterFace (VPIF) S-Video out. My task is to bring up X11 thru that interface. After loading kernel successfully, booted the board thru NFS. …

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OMAP3 Display Sub System

Today I spend nearly 12Hours in hacking the omap3 DSS code to bring-up the TV-Out interface and finally ended-up with a kernel panic. Initially, no DSS device is got detected. After added latest patch from linus-omap tree, tv-out is detected. But …

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