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by Musmuris
Tue Aug 01, 2017 11:45 pm
Forum: Bare metal, Assembly language
Topic: When setting up the mini UART, why does it need clock control signal?
Replies: 6
Views: 1974

Re: When setting up the mini UART, why does it need clock control signal?

its not needed, I thought it was but I was fighting a documentation error, and never really took it out until recently I have started removing it. I was also an interesting challenge to actually get it to work or I think it works (changing the state like that). Works, done, never get back to it, an...
by Musmuris
Tue Aug 01, 2017 5:31 pm
Forum: Bare metal, Assembly language
Topic: When setting up the mini UART, why does it need clock control signal?
Replies: 6
Views: 1974

Re: When setting up the mini UART, why does it need clock control signal?

https://www.raspberrypi.org/app/uploads/2012/02/BCM2835-ARM-Peripherals.pdf Read page 101 ... Step 2 and Step 4 Thanks - I did - I understood that whatever needed to be done had to be held for a number of clock cycles, but not why anything needed to be done at all to the UART pins. I'm assuming tha...
by Musmuris
Tue Aug 01, 2017 5:17 pm
Forum: Bare metal, Assembly language
Topic: When setting up the mini UART, why does it need clock control signal?
Replies: 6
Views: 1974

When setting up the mini UART, why does it need clock control signal?

Hi, Getting into programming the RPI bare metal for fun (last time I did something like this was 20 years ago on z80 variant!). Having done the canonical blinking ACT led, I want to get a UART going to save faffing with the SD card going forward. Whilst looking at dwelch67's excellent example I saw ...
by Musmuris
Fri Apr 06, 2012 9:13 pm
Forum: General discussion
Topic: Re: Status Updates (a.k.a where's my pi at?)
Replies: 66
Views: 50842

Re: Status Updates (a.k.a where's my pi at?)

From the twitter feed – CE testing is complete and it passed!  (Still need to file the paperwork which may take time)   (Also FCC and a couple others iirc)
by Musmuris
Fri Feb 24, 2012 7:35 pm
Forum: Other projects
Topic: Bare metal Raspberry Pi
Replies: 23
Views: 7711

Re: Bare metal Raspberry Pi

<t>tufty said: <br/> <br/> <br/> See my .sig<br/> <br/> Simon<br/> <br/> <br/> Thank you,<br/> <br/> I did and read the first few posts on the ARM, which are quite informative and are also what I was thinking as well so far (from what I could glean from the Arm reference).<br/> <br/> However there's...
by Musmuris
Fri Feb 24, 2012 4:32 pm
Forum: Other projects
Topic: Bare metal Raspberry Pi
Replies: 23
Views: 7711

Re: Bare metal Raspberry Pi

<t>I also had a hankering to write a (very simple) OS, purely as an academic exercise (well the Pi is targeted at education right?) so was also trying what Velko did<br/> <br/> Velko said:<br/> <br/> <br/> It was puzzling me as well, but now, when official image is available, I took a liberty to rev...

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