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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...
Sun. Dec 2, 2018 - 10:02 PM
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...
Thu. Nov 29, 2018 - 10:41 PM
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...
Thu. Nov 15, 2018 - 12:02 PM
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...
Sat. Nov 10, 2018 - 11:16 PM
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'...
Sat. Sep 22, 2018 - 11:06 AM
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...
Wed. Jun 27, 2018 - 04:32 PM
Empty array stored in program memory?
Hi,     I'm going to be upfront here - I suspect this is a stupid question, but I just can't quite seem to get my head around why it works this way, so:   if I...
Thu. Jun 14, 2018 - 12:20 PM
'inherit' struct types?
Hi,     I want to create 2 types which share a base set of attributes but have slight differences. Obviously I can just do this:   typedef struct mob_type {...
Tue. Jun 12, 2018 - 01:46 PM
Different .hex sizes between environments
Hi,     I've been hard at work on my mini-console-thing and I'm reaching the 8K limit on my  ATTiny85, so I've been tinkering with stuff.   After fiddling with...
Tue. May 22, 2018 - 01:47 PM
misadventures with char type
Yesterday was filled with confusion and doubt. Today brings a shaft of light, but little in the way of enlightenment.   I appear to have my Raspberry Pi Zero toolchain...
Thu. May 10, 2018 - 08:32 PM
avrdude status LEDs & RPi
Hi, I'm making fair progress with my Raspberry Pi as an AVR development tool. I noticed in the .conf file for avrdude that you can specify pin values for a set of status LEDs:...
Wed. May 9, 2018 - 04:44 PM
avrdude on RasPi Zero only works once
Hi, I'm trying to set a Raspberry Pi Zero up as a mobile dev tool. After a few false starts I have everything set up and I can program an ATTiny85 via SPI and the GPIO pins....
Sun. May 6, 2018 - 08:17 PM

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