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Pricing of xmega E5 series
What's going on with the xmegaE5 series pricing? The 8E5 is more expensive than the 16E5, which is more expensive again than the 32E5. The original pricing for the 8E5 was...
Friday, 30 September 2016 - 20:15
TOSC and XTAL pins on xmega D3 and A3 devices
Just posting this as a warning to others to check where the TOSC pins are on their device before laying out the PCB!   The errata for the xmega D3 devices shows that for...
Thursday, 26 May 2016 - 11:33
SPI remap for xmegaD3 and USART in SPI mode
Hi All, I notice that the latest rev I versions of xmeg32D3 parts have dropped the remapping bug, so presumably this now works for this rev of silicon.   I'm a bit confused...
Tuesday, 3 May 2016 - 15:32
BSODs when running AVRStudio's programmer on 2nd monitor
I have a couple of isses with using AVRStudio's programmer (both V6.2 SP2 and V7) in a second extended desktop monitor.   The first is the AVRISP mkII I'm using disconnects...
Wednesday, 28 October 2015 - 14:56
xmega E5 LOAD_EEPROM_BUFFER command missing
Hi All, I'm trying to compile the xmega bootloader using an ATxmega32E5, but it's failing compilation because the NVM_CMD_LOAD_EEPROM_BUFFER_gc #define is not present in the...
Tuesday, 1 July 2014 - 10:18
_delay_us(10) v. _delay_us(10.0)
Hi All, I've inhereted some code with _delay_ms() and _delay_us() calls, however the author has chosen to use floating point constants as arguments rather than integer constants....
Tuesday, 21 May 2013 - 21:25
Xmega ADC using a digital output as a negative ADC input
I'm using an ATxmega32A4 and struggling with the ADC. Unfortunately I didn't put an external reference on the circuit, so forced to use either the 1.0V bandgap or VCC/1.6. I'm...
Wednesday, 15 August 2012 - 21:02
Detecting end of transmit with xmega DMA
I need to implement RS485 at 115200 baud, so I'm using the DMAC to send data to eliminate the interrupts. I need to turn off my transmit buffer once the last byte has been shifted...
Wednesday, 9 February 2011 - 14:00
Problems simulating ATxmega32A4
Hi All, I'm using Simulator2 (AVRStudio V4.18 build 716) to do some algorithmic testing on some functions I've written. To start with I used a very simple program: uint8_t...
Thursday, 3 February 2011 - 20:48
how does WinAVR handle bool data type?
Hi All, Some compilers e.g. CodeVision allow bit data types. CodeVision is smart in that you can also specify a set of registers that the bit variables will be placed in so it can...
Wednesday, 5 January 2011 - 22:59
xmega DMA for high speed serial IO
I have a project that needs 115kbaud of serial IO. I need to implement FIFO (ring) buffers for reception but at that speed the CPU gets interrupted at about 11kHz, so I'm...
Saturday, 1 January 2011 - 23:42
Using an XPLAIN board to program an external xmega chip
I've added a short tutorial in the tutorials section on how I modified an XPLAIN board to program an external xmega using Dean Camera's excellent LUFA XPLAIN Bridge code. This...
Friday, 31 December 2010 - 13:35

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