20 Mar '17, 11am

Flashing An ARM With No Soldering

[Sami Pietikäinen] was working on an embedded Linux device based on an Atmel SAMA5D3x ARM-A5 processor. Normally, embedded Linux boxes will boot up off of flash memory or an SD card. But if you’re messing around, or just want to sidestep normal operation for any reason, you could conceivably want to bypass the normal boot procedure. Digging around in the chip’s datasheet, there’s a way to enter boot mode by soldering a wire to pull the BMS pin. As [Sami] demonstrates, there’s also a software way in , and it makes use of mmap , a ridiculously powerful Linux function that you should know about. Embedded Linux devices and the microcontroller in your Arduino or clone aren’t nearly as different as you’d think — you just haven’t read the datasheet for the former. If you’ve gotten deep into microcontrollering, you’re used to the paradigm of controlling the chip’s functionality by...

Full article: http://hackaday.com/2017/03/20/flashing-and-arm-a5-with-n...

Tweets

Trump Administration takes aim at nation’s ocea...

nrdc.org 20 Mar '17, 3pm

Release of the Trump Administration’s proposed 2018 federal budget reinforces fears that our nation’s ocean arm will exper...

The Heart of a Soldering Station

eetimes.com 22 Mar '17, 3pm

So, what makes the CSI Premier soldering station stand out above its entry-level Weller and Hakko counterparts? Well, the ...

ARM DynamIQ: Expanding the possibilities for ar...

design-reuse.com 21 Mar '17, 7am

New dedicated processor instructions for ML and AI: Cortex-A processors designed for DynamIQ technology can be optimized t...

The Heart of a Soldering Station

eetimes.com 17 Mar '17, 10pm

So, what makes the CSI Premier soldering station stand out above its entry-level Weller and Hakko counterparts? Well, the ...

One Soldering Controller To Rule Them All

One Soldering Controller To Rule Them All

hackaday.com 08 Mar '17, 12pm

If your favourite programming language is solder, they you’ve surely worked your way through a bunch of irons and controll...

アメリカ国でサードアームデバイスという鉄砲の重量を支える装置がテストされているそうです https://t.co/osi89ZINjR

アメリカ国でサードアームデバイスという鉄砲の重量を支える装置がテストされているそうです htt...

army.mil 25 Mar '17, 4pm

HUNTSVILLE, Ala. (Army News Service) -- Future ground troops may one day have a "third arm" device attached to their prote...