Archive

Archive for the ‘UNIX TLC’ Category

Our RM2012 (temperature and humidity sensor) has a great bug, we are going to solve it in a while.

February 4th, 2012 No comments

Our RM2012 microcontroller with integrated sensors for measuring temperature and humidity has shown a bug, we apology for this problem. we are going to solve it a soon as possible. We think we'll have a workaround on the 6 of february. Then we are going to apply a new patch for the end of the next week.

Categories: Bugs, micro controllers Tags: , , ,

How to build your own kernel for Fedora 14

February 2nd, 2012 No comments


Building a custom kernel is one of the most important rites of passage for advanced Unices users. This process, while time consuming, will provide many benefits to your system. Unlike the GENERIC kernel, which must support a wide range of hardware, a custom kernel only contains support for your PC's hardware. This has a number of benefits, such as:

  • Faster boot time. Since the kernel will only probe the hardware you have on your system, the time it takes your system to boot can decrease dramatically.

A pseudo serial sniffer for RS232 communications

January 30th, 2012 No comments

All electronic devices, computers and  micro controllers need to exchange data with other devices. One of the most used  way, since 1969, is the serial transmission using the RS232 standard when the EIA defined it. Serial transmission is commonly used with modems and for non-networked communication between computers, terminals, printers and other devices It is  useful for debugging purpose in embedded system. In the following paragraphs we describe the serial transmission in the two forms: Synchronous and Asynchronous. 

How to select odd (or even ) raws from a text file using the bash

January 27th, 2012 No comments

Yesterday I had to select some raws (1, 5, 9, ….) from a text file.

This has been a hard job because I was trying to solve the wrong problem……

Really, before coding you should analyze deeply your problem and then you should think which tool you need to use.

However, come on and see my experiments:

First of all we need a test file, I'll use the following:

How to solve “libssl.so.10: cannot open shared object file: No such file or directory” error in Ubuntu 9.10

January 23rd, 2012 No comments

During my experiments with LTIB I've encoutered the following error

 

Processing: gettext

=====================

Build path taken because: no prebuilt rpm, 

Testing network connectivity for gpp

OK GPP: is available

Try gettext-0.15.tar.gz.md5 from the GPP

How to install minicom on Mac OS X – Snow leopard

January 16th, 2012 No comments

Minicom is a text-based modem control and terminal emulation program for Unix-like operating systems, originally written by Miquel van Smoorenburg, and modeled after the popular MS-DOS program Telix. Minicom includes a dialing directory, ANSI and VT100 emulation, an (external) scripting language, and other features. Minicom is a menu-driven communications program. It also has an auto zmodem download.

Working with the TCN75 temperature sensor

January 9th, 2012 No comments

How to use the TCN75 temperature sensor

In this article I'm going to show to you how to use the TCN75 we have mounted on our boards.

The TCN75 is a very simple temperature sensor but at the same time it is very accurate, with a precision of ±0,5 ° C, fra 25°C≤ TA ≤ 100°C e ±3 °C -55°C≤ TA ≤ +125°C.

The decline of international Electronic Manufacturing Services in Italy, what are Italian Companies learning?

January 6th, 2012 No comments

Written by Enrico Espinosa

From the end of 80’s important international companies operating in electronics looked for partnership to outsource the manufacturing activities. The intent of multinational companies operating in the telecom, automotive, IT business, was to leave the manufacturing activities to focus on their own core business. This strategic approach to business allowed international OEM firms to enter in the European market through commercial agreements and the acquisition of production sites. Their business model was to supply entire business unit products acquiring the manufacturing divisions. The target for the OEM was represented by multinational companies with leading technological products, and what it was happening met this expectation. The single technology design of family products allows the international OEMs to dedicate entire lines to a single customer emphasizing the specialization of their assets (human capital, and equipment). In addition, their competitive advantage were the high capital reserves to buy production sites and to cover costs of ramp-up manufacturing activities.

Working with the RTCC MCP 79410 RTCC (Real Time Clock with Calendar)

December 30th, 2011 No comments

How to use the MCP79410 Real Time Clock

In this article I'm going to show you how to use the MCP 79410 we have mounted on our boards.

The MCP79410 is a Real Time Clock (RTC) chip that uses a digital compensation of the time to realize an accurate clock/calendar. It has a programmable output line (it is possible to program up to two alarms), it can be backupped by an external battery (there is an ad hoc circuit), it has a small non volatile memory to store data and a small backupped SRAM.

Santa came…. with Untethered jailbreak

December 28th, 2011 No comments

The dev-team has a gift for you.. :

"@pod2g has created a terrific gift for iOS fans — an untethered 5.0.1 jailbreak for non-A5 devices! 

Many of you have already been following @pod2g’s blog where he’s been keeping everyone up to date on his progress.  And so you know that he recently decided to push the button on a release for all devices except the new iPhone4S and iPad2.  @pod2g’s untether involves two separate exploits and a few other “tricks” — and since he’s taken the @comex approach of doing nearly everything himself, you know his plate has been full these past few months!

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