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Reading and Writing a struct to memory
Hi everyone, I have been learning about the eeprom. I understand that writing a struct to eeprom memory is just case of writing each variable that is part of the struct. So my...
Saturday, 1 June 2013 - 18:16
button matrix time between presses
Hi guys, I have mentioned this before, and I have got something that outputs values, but for certain values (specifically in the corners of the 8x8 matrix) suprious things seem to...
Sunday, 17 March 2013 - 17:36
Checking to see whether a bit shift will cause overflow
Hi, I am messing around with bit manipulation, and thought Id make an arpeggiator go up and down a chord. below is my routines. arpUp works perfectly. However it has the added...
Monday, 4 March 2013 - 21:26
This wireless conversation between two nrf24L01+ units
I have a mega328p and a mega1284p I am using the code originally writen by I think David on this forum. I have had communication between the two in the past but now the...
Sunday, 3 March 2013 - 20:20
Simple graphic Menu system
Hi everyone I am using "The Polish Code" for the KS0108 LCD driver. I am using this LCD: http://www.rapidonline.com/Elect... and the mega2560. I have used Oliver Kraus' graphics...
Sunday, 3 March 2013 - 12:25
high precision micro second timer
Hi Im using Timer0 for a high precision microsecond timer I need. Im using the mega2560. And AVR-GCC. My setup is here; TCCR0A |= (1 << COM0A1) | (1 << WGM01);...
Thursday, 21 February 2013 - 20:34
Reading the state of a keymatrix into an array
Hi, So Im quite new to masks but I get the jist. I've written the following to read the state of a 64 key keymatrix into an array. I use the mask to set PORTK LOW and then if...
Tuesday, 19 February 2013 - 21:59
the jump to avr 32 bit
Hi everyone over here. I am considering now that Arduino has brought out the Arduino due to look into programming32 bit avr's but I cant find a getting started anywhere. I dont...
Tuesday, 19 February 2013 - 09:56
PreProcessor defines
Hi everyone. I am using a library that wants you to tell it what pins buttons etc are on using its own macros: P('A', 1) is PA1. However I am using the mega2560 which has a...
Sunday, 17 February 2013 - 17:22
Simple PWM
Am I being stupid, what have I missed out? I have no problems getting it to work if I put the stuff inside the ISR inside my while(1) loop...
Sunday, 17 February 2013 - 15:30
Linker
Hi, I am trying to implement the u8glib libraries for my mega2560. It all compiles, the problem is too much compiles. Apparently I am using up 330% of my flash! The author of the...
Saturday, 16 February 2013 - 20:00
LUFA usb library
Hi, I am tyring to use the LUFA serial to usb library I basically have an unbootloaded Arduino 2560 - and I dont want to use any bootloader at this stage for the mega16U2 that...
Saturday, 16 February 2013 - 15:12

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