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SAMD10 - I broke the clock?!
Hi,     I have a little SAMD10 board that I made to learn how to do ARM stuff with. I had it working fine but was struggling with getting SPI fast enough. As I was...
Friday, 25 October 2019 - 19:10
Code never executed slowing down execution?
I have a very strange problem that I don't even know where to start with.   Do you think that the strange behaviour noted below might be caused by the fact that my...
Wednesday, 10 April 2019 - 20:37
Noob question: using -I to organise my libraries
Hi, I'm trying to be a bit more grown-up with how I organise my projects. My game system has a library that contains all the hardware abstractions and currently I just copy it...
Saturday, 2 March 2019 - 10:43
Confusion: ATMega16U as ISP with Bootloader?
Hi,     I'm struggling with a concept - I've noticed that your average 'Arduino' board has the ATMega328 as its core controller but also has an ATMega16U to handle USB...
Saturday, 23 February 2019 - 13:08
Creating structs - memory management
Hi,     I've never really written C for anything other than AVR and so my understanding of how memory is managed is limited.   typedef struct Sprite { int x...
Tuesday, 12 February 2019 - 10:37
warning: implicit declaration of function
Hi,     I have an odd problem with my current project in that I get the above error when I compile.   I have a number of different files that are included into a...
Wednesday, 6 February 2019 - 19:25
Trouble with Hardware SPI clock
Hi,   I'm trying to use the USART0-SPI mode on my ATmega1284 project. After much fiddling, I have it almost working. It is connected to an OLED display controlled by an...
Sunday, 2 December 2018 - 22:02
How delicate are internal pull-up resistors?
Hi, I have a SOIC packaged ATmega1284 which I have hand soldered to a custom PCB, in fact, for various reasons I've taken it off and resoldered it 3 or 4 times. I don't have a...
Thursday, 29 November 2018 - 22:41
Compiling for SAMD on the Raspberry Pi
Hi,     I have a stupid question - a while back I bought some bare SAMD10 chips as part of a project I am slowly getting back around to. At the time I didn't have the...
Thursday, 15 November 2018 - 12:02
Hardware SPI performance
Hi, I've been making progress with my little game device project, recently redesigning it to use an ATmega1284p and a colour OLED display. I made a few errors with my pin...
Saturday, 10 November 2018 - 23:16
Programming a bare SAMD10C
Hi, A while back I bought a few 14-pin SAMD10C chips for a project, then I got distracted and didn't do much with them. I'm back looking at that project now and wondering if it'...
Saturday, 22 September 2018 - 11:06
using __flash instead of PROGMEM?
Hi,     I realise I'm a decade or so late, but I'm struggling to get things working again.   I've started a new, smaller game for my hardware project thing and I'm...
Wednesday, 27 June 2018 - 16:32

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