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Serial Communication over RF Transceivers(Using Atmega32u4)
It doesn't use SPI for communcation. It does use SPI internally between the radio chip and uC, but for communication with the target system, it uses UART, which Jeffrey has set up.
Tuesday, 12 March 2013 - 06:08
Need some LUFA help
Also, if it was "I solved my problem". Maybe a quick post about what the solution was will help the next person.
Monday, 11 March 2013 - 16:21
Serial Communication over RF Transceivers(Using Atmega32u4)
Couple dumb questions ;) You made the antennae out of 18 gauge 24cm solid core wire? You have the crystals populated?
Monday, 11 March 2013 - 03:41
External SRAM and 8kb problem
You can ignore the 0xFF bit for PORTC, that was just to further illustrate that you're only changing the most significant bit. Consider this: With PORTC = 0x00 you get page 0...
Sunday, 10 March 2013 - 16:06
External SRAM and 8kb problem
The avr thinks you're writing to 0x8000, which is an external address. But since you yank control of a15 away from it, what really ends up on that pin is up to you. If you set it...
Sunday, 10 March 2013 - 06:42
AVR dragon and Atmega328 problem
Do you have a pull up on reset and if so what value? Fo you have anything else connected to reset?
Sunday, 10 March 2013 - 06:34
atmega328p - i2cmaster library - if/else statement problem
Seems you don't call i2c_init...
Sunday, 10 March 2013 - 06:32
atmega328p - i2cmaster library - if/else statement problem
1 = 0x01 '1' = 0x31 but I gather that's not your issue. I assume the problem is that i2c_start isn't returning. If you set result = 0 or result = '1' do you get the two leds to...
Sunday, 10 March 2013 - 06:26
External SRAM and 8kb problem
The only piece you missed is that we released the top (A15) line of portc to be a gpio pin and manually set it to 0. Doing so makes a write to 0x8000 fool the avr into accessing...
Sunday, 10 March 2013 - 05:57
Serial Communication over RF Transceivers(Using Atmega32u4)
Eliminating the radio transmitters and keeping everything else makes it work so I can not only think that's the issue. Either the radio link is failing or the rx to PC link is...
Sunday, 10 March 2013 - 05:46
External SRAM and 8kb problem
What it's saying is that when you address 0x0000-0x21FF, you won't actually get the uC to address the external memory. Instead, it will be mapped to internal. So if you want to...
Sunday, 10 March 2013 - 05:10
Read DS18B20 with AVR (ATtiny261)
Kartman wrote:So next time you're waiting in line at McDonalds, decode the customers by fat and skinny. That's one wire protocol. Not the best example. 0x00 isn't a valid command...
Wednesday, 6 March 2013 - 06:13

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