| Discussion Title | Created date |
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Antenna design I have a datasheet describing antenna design for a radio IC. In the following clip from the datasheet, what does "relieve" mean? Antenna capacitance should be minimized. To... |
Friday, 25 January 2008 - 20:29 |
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3 wire SPI connection I'm planning to connect an AT45xxx Series Dataflash device to an AVR MCU through SPI and considering the following approach: AVR MISO... |
Thursday, 17 January 2008 - 21:08 |
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Clock generation Is there a low cost single chip way to derive a 32.768 kHz clock from an 8 MHz clock source? I've been reading about clock dividers and plls but what I've found just multiplies or... |
Tuesday, 18 December 2007 - 05:42 |
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Inductor types What is the difference between a "power inductor" and a "common mode inductor"? I haven't found much detail through searching (other than vendors' product lists). If I'm using an... |
Saturday, 15 December 2007 - 05:34 |
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Capacitor confusion I'm building a prototype circuit around an AT90USB162 that is powered by USB VBUS (+5v), and I'm confused about what type and size of cap should be used for power decoupling. I... |
Friday, 14 December 2007 - 02:26 |
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SHA-1 for 8-bit AVR I am looking for a SHA-1 implementation for small AVR's with only 512 bytes of sram (like the AT90USB162). I found this library here on avrfreaks that I'm examining, but I'm... |
Friday, 9 November 2007 - 23:28 |
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usb framework bug I am working with the at90usb162-hidgen-1_0_1 example firmware from Atmel and found a buffer overflow bug I thought others might want to know about (I also sent Atmel an email).... |
Monday, 5 November 2007 - 23:39 |
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USB communication problem I've hit a wall with a usb communication problem. I'm getting occasional timeouts for interrupt IN reads. This is my setup: STK526 board with an AT90USB162, connected via usb to... |
Friday, 2 November 2007 - 00:47 |
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Large binaries This is not a very specific question, but I'm wondering what experience people have improving the code density for avr-gcc compiled firmware. I am building the USB Generic HID... |
Thursday, 25 October 2007 - 19:27 |
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avr-libc .o not found I'm trying to build an at90usb162 project with a makefile generated from mfile on linux using avr-gcc 4.2.1 and avr-binutils 2.17. I've built avr-libc 1.4.6 ok, but when I try to... |
Friday, 19 October 2007 - 00:20 |
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illegal opcode jmp compiling avr-libc I am trying to build avr-libc 1.4.6 under Ubuntu (7.10 32bit) using avr-gcc 4.2.1: http://packages.ubuntu.com/gutsy... When building the library for the at90usb82 I get the... |
Wednesday, 17 October 2007 - 06:48 |
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Socket adapter I've been looking for a way to plug a 0.05 inch centerline plug (aka terminal) into a standard breadboard with 0.1 inch holes. Specific, I want to plug the following into the... |
Monday, 11 June 2007 - 23:53 |