blog.world3.net

I call bullshit

27/01/2013 – 17:49

Spotted an “Editor’s pick” comment on the BBC News web site:

“Rachel :

This has been a problem for years, I recall being viewed as a nuisance for finishing class work & homework half way through the lesson at comp school. I was bored, frustrated and rebellious & ended up getting through 3 schools before leaving with no qualifications. I guess you could say that was a state education fail. I still ended up with a PhD from Cambridge but no thanks to the state system.”

The path from leaving school with no qualifications to getting in to Cambridge, let along getting a PhD from there, would make an incredible story if true. Worthy of a BBC News article, in fact. Unfortunately, Rachel almost certainly made it up as a lame “trump card” in the debate. I wonder if this is a British thing, just making stuff up so you can moan about how crap everything is, or if it happens everywhere.

I wish the BBC would apply the same scepticism and questioning to members of the public as they do to everyone else. I remember another person on Newsnight a while back complaining that when she went into hospital for an operation she was pushed down the queue because some black woman, new the country and unable to speak English, was prioritized ahead of her. No reason given for this prioritization, except the implied racism against white people and that immigrants somehow get everything first because because of the EU or something. No explanation of how she came to know the intimate details of this other person’s medical history in order to decide her own need was equal or more urgent. Gordon Brown was right, people like that are bigots who just love to hate, and the BBC loves to give them a platform without challenging their bullshit.

By mojo | Posted in BBC, idiots | Comments (0)

XMEGA ADC set-up

10/01/2013 – 16:44

Setting up the XMEGA ADC can be a bit confusing. There are two basic set-ups I use:

1. Single ended, GND to AREF with zero at GND, 0-2048 (11 bits). Set signed mode (CONVMODE bit) and single ended mode (SINGLEENDED bits).

2. Differential, GND to AREF with zero at MUXNEG, -2048 to +2048 (12 bits). Set signed mode (CONVMODE bit) and differential mode (DIFF bits).

By mojo | Posted in avr | Comments (0)

O PayPal, how I hate thee

28/11/2012 – 23:20

Whenever I pay for anything with PayPal the list of addresses contains every one I have ever entered, like places I haven’t worked at for years. There is no way to delete them, the only option is to call customer services on the phone. That is the official response on the PayPal forums.

I have to change the payment method from bank transfer to credit card as well. Bank transfers offer no protection beyond PayPal’s bullshit dispute resolution service, where as with a credit card the bank has some level of liability for fraud or even just faulty goods.

And… why… is… it… so… fucking… s… l… o… w… ?..

I really, really wish PayPal would just die. Google Checkout is much, much better. I wish more web sites would accept it. It is in their interest to do so – the fees are lower and the dispute resolution service is fair and reasonable.

By mojo | Posted in idiots, Internet | Comments (0)

Britain’s lost decade

08/08/2012 – 22:50

I think we are about half way through our lost decade now. At least I hope we are, 2018 should be the start of the recovery, assuming there is a change of course at the next election.

Exactly what happened to Japan has happened to us. It’s the kids I feel worst for, the ones just starting out after college or university and finding that there is no money, no jobs and no hope for at least another five years.

By mojo | Posted in politics | Comments (0)

The ioSafe is probably overkill

05/08/2012 – 23:22

The ioSafe is a fireproof and waterproof USB hard drive. The idea is that even if your house is burned down or flooded it will survive. It sounds like an excellent way to secure your backups, although it is a bit expensive at £170 for the 2TB version.

Thing is I don’t think there is really much need for something like that, at least for me. Between various services I have over 100GB of online storage available. Shitty download limits on Virgin make it a bit annoying to use them, but still. I have far more than 100GB of stuff to back up, but most of it is static so I can just stick it on a normal USB hard drive and keep that somewhere safe away from my house.

The ioSafe also doesn’t provide any protection against power surges, which are the biggest threat. It is also only good for a 3m fall, not much if you use it on the first floor of your home. If you have a lot of data that changes often I can sew how it could be handy I suppose.

By mojo | Posted in hardware | Comments (0)

kNet hacked?

12/07/2012 – 21:25

I had a rather disturbing email from Google a few days ago. They reported a URL on my web site that was being used for phishing. Sure enough when I loaded it there was a fake PayPal login page.

The page was on the mail.world3.net subdomain. This subdomain is set up automatically by kNet and I don’t have any access to it. I can’t delete it, can’t access the files on it via FTP or any other means, can’t control it in any way. I changed my passwords anyway, but was unable to do anything about the page. Naturally I contacted kNet immediately.

Unfortunately by the time kNet looked the page had been removed and in a panic I forgot to take a screenshot. They seemed sceptical and refused to acknowledge that the hack couldn’t have been using my credentials. After all, I have no access to the mail.world3.net subdomain. kNet seem to be in denial… But what other explanation is there?

By mojo | Posted in Internet | Comments (0)

Atmel ASF compiler flags

19/06/2012 – 16:57

The following need to be set up to add Atmel ADF USB CDC code, and possibly other code, to an existing project. In the optimization settings add “-fdata-sections”. In the symbols section add “BOARD=USER_BOARD” or whatever you are working with.

By mojo | Posted in avr | Comments (0)

RDP connection shortcut

12/05/2012 – 10:44

Create a shortcut with the target “%windir%\system32\mstsc.exe <connection.rdp>”. You can then pin it to the start menu or task bar for one click access.

By mojo | Posted in windows | Comments (0)

Japanese keyboard fix

10/05/2012 – 23:35

To fix the Japanese keyboard mapping on various laptops change the driver for the keyboard as well as the keyboard layout selection.

By mojo | Posted in windows | Comments (0)

Working XMEGA temperature sensor code

17/04/2012 – 09:00
int16_t ref, degrees_x10;
 float kelvin_per_adc_x10;
ADCA.CTRLA = ADC_FLUSH_bm; // cancel any pending conversions, disable ADC
// set up exactly how Atmel did when they measured the calibration value
 ADCA.CTRLB = ADC_RESOLUTION_12BIT_gc; // unsigned conversion, produces result in range 0-2048
 ADCA.REFCTRL = ADC_REFSEL_INT1V_gc | ADC_TEMPREF_bm;
 ADCA.PRESCALER = ADC_PRESCALER_DIV512_gc;
ADCA.CH0.CTRL = ADC_CH_INPUTMODE_INTERNAL_gc | ADC_CH_GAIN_1X_gc;
 ADCA.CH0.MUXCTRL = ADC_CH_MUXINT_TEMP_gc;
ADCA.CTRLA |= ADC_ENABLE_bm;
 adc_wait_8mhz();
// get 358 K factory calibrated value
 ref = HW_read_signature_byte(PROD_SIGNATURES_START + TEMPSENSE0);
 ref += HW_read_signature_byte(PROD_SIGNATURES_START + TEMPSENSE1) << 8;
 kelvin_per_adc_x10 = ((273 + 85)*10) / (float)ref; // reference is ADC reading at 85C, scaled by 10 to get units of 0.1C
degrees_x10 = ADC_sample(&ADCA.CH0);
 ADCA.CTRLA = 0; // turn ADC off
 ADCA.REFCTRL = 0; // turn temperature sensor off
degrees_x10 *= kelvin_per_adc_x10;
degrees_x10 -= 2730;
return (degrees_x10);
By mojo | Posted in avr | Comments (0)
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