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SPI Interrupt Flag Clearing on XMEGA
Dear all, I'm trying to solve a problem with the SPI on the XMEGA devices (ATxmega128A1). In the following code, sometimes, it sometimes gets stuck in the while loop: //...
Monday, 23 March 2009 - 00:12
Bootloader - separate vs combined with application prorgam
Hello all, I am interested in the thread: https://www.avrfreaks.net/index.p... In particular, what are the advantages and disadvantages of having combined vs separate bootloader...
Friday, 27 February 2009 - 07:01
time.h and/or timing library for C
I am using winavr 20081205. There appears to be no time.h header file implemented, either by looking at the source, on the homepage at file:///C:/WinAVR-20081205/doc/avr-libc/avr-...
Friday, 27 February 2009 - 01:03
Maximum frequency of USART in SPI mode
Hello, I'm using the xmega, although I would imagine that this is equally applicable to the normal mega series as well. From the datasheet (p213 of the xmega manual) it says that...
Thursday, 12 February 2009 - 07:15
xmega register structures - SPID.DATA vs SPID_DATA
Dear all, I have just been having a look at the assembler generated by two fairly simple operations. The compiler is gcc WinAVR-20081205, on Windows XP, to an ATxmega128A1, using...
Wednesday, 4 February 2009 - 07:45
Multiply, divide, add performance for various data types
Hello all, The intention is to use the AVR as a data aquisition device before sending the data to the main processor in our application. However, we are thinking of performing...
Monday, 29 December 2008 - 01:04
XMEGA USART in SPI Mode problems (simulator?)
Hi all, I am attempting to write a driver for the SPI using the USART module on the ATxmega128A1. Since I am will waiting for the daughterboard to come in, I am debugging on the...
Friday, 19 December 2008 - 06:28
bootloaders and xmega?
Hello all, After several years of no avr, I am now starting a project using the new xmega chips. Specifically, we are using the ATxmega128A1 for development with the idea of...
Monday, 15 December 2008 - 05:34