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Xmega and SDRAM
Anybody do this?
Friday, 5 June 2009 - 18:58
AtXMega and DMA
I have an array: const unsigned char sequence[] = {0,1,2,3,4,5,6,7,8,9}; And I want to transfer each element of the array to a port output using DMA over a period of time and...
Wednesday, 13 May 2009 - 20:31
ATXmega64A1-AU Getting started
So I just got some of these chips last week and soldered one to a test board. Tested the JTAG and everything looks fine so far. So I just started my first line of code and looking...
Thursday, 30 April 2009 - 20:24
UART RS232 Problems
I have a project with an atmega using the serial port. I have a max3232 logic level converter for RS232. I communictate fine with some PC software I am using and have used a few...
Friday, 27 March 2009 - 18:50
I am trying to run gdbserver in order to debug some code. I use the com port on NGW100 and I get a segmentation error. ~ # cd usr /usr # dir -sh: dir: not found /usr # cd.. -sh:...
Monday, 28 April 2008 - 17:03
AVR32 --> NGW100
I just got a NGW100 board and powered it up. I can connect to it via serial, telnet, ftp, http. I compiled a hello word program using command line and downloaded it to the board...
Friday, 25 April 2008 - 16:31
Atmega1280 low frequency crystal capacitance
I connected a 32768 Hz crystal to the Atmega1280 without any external capacitors, and it oscillated at a freq about 200khz. I assumed that there were alrready 12.5pF caps internal...
Monday, 17 December 2007 - 16:13
SPI Port Atmega1280 TQFP100
I am trying to output a byte consitantly out of the SPI port on the uC. serial_enable(); txchar_serial('1'); DDRK |= 0x80; PORTK &= ~0x80; DDRB |= 0x06; DDRB...
Thursday, 13 December 2007 - 14:58
.data section in external ram
How do I place everything in external ram? I use this in the makefile: EXTMEMOPTS = -Wl,--section-start,.data=0x802200,--defsym=__heap_end=0x80ffff but still get this in my map...
Tuesday, 11 December 2007 - 19:48
Atmega1280 JTAG mkII programming problems
I am using an Atmage1280-16AI 100-TQFP. AVR Studio 4.12 SP4. VCC is 3.3V on my board. All JTAG connections are verified. TDI - pin 90 TDO - pin 91 TMS - pin 92 TCK - pin 93 nSRST...
Friday, 7 December 2007 - 14:12
Bootloader (storing wrong data)
I'm using Atmega324P with avrgcc. I have made a bootloader and I get a random FFFF in flash once in a while. The data packet going to the microcontroller was verified and I am...
Thursday, 16 August 2007 - 17:47
I get the following error when using the watchdog functions. It worked okay with the newer version of winavr, but when I reverted back to an older version, problems. void...
Wednesday, 25 July 2007 - 15:43