Post Created date
Bootloader on Leonardo
Hi Pirmin,   1) The Leonardo comes with the Arduino "Caterina" bootloader ( which is just a modified version of my LUFA CDC class...
Tuesday, 21 October 2014 - 08:56
AT90USB Datalogger
I'd recommend trying to write a basic "hello world" driver from a basic application template then; set up the SPI and /CS lines, then send 0x9F and see if you can get a 0x1F back...
Tuesday, 7 October 2014 - 09:23
Musical Studio?
Oh man, this is the gift that just keeps on giving...   - Dean
Friday, 3 October 2014 - 09:01
AT90USB Datalogger
Yes, it is supposed to send back 0x9F, but that's not what your trace is showing. Try lowering the SPI speed just in case it's too fast for your logic analyzer setup.   Also...
Wednesday, 1 October 2014 - 11:20
AT90USB Datalogger
Well the 0x9F command to read the device information looks like it's being sent OK, but the received byte is 0x00 which isn't the expected Atmel/Adesto 0x1F. The MISO pin *is*...
Sunday, 28 September 2014 - 04:46
AT90USB Datalogger
Is that all your app is doing, the manufacturer read test? The USB AVR should be pulling /CS low, sending a 0x9F byte, receiving a 0x1F byte and then releasing /CS (repeated for...
Sunday, 21 September 2014 - 06:35
AT90USB Datalogger
Great! That means the low level interface isn't working, which should be simple to debug. Have you verified the schematic - and if so can you post it? Can you use a logic analyser...
Friday, 19 September 2014 - 10:42
AT90USB Datalogger
The Dataflash chips expect an actual command set, not just raw address and bytes. Try this to verify basic read and write SPI communications:   ================   ...
Wednesday, 17 September 2014 - 10:32
LUFA with HID on Atmega32u4
The report size is distinct from the endpoint size; the latter needs to be a power of 2, and just indicates how large a single packet transferred to or from the host on that...
Wednesday, 17 September 2014 - 10:11
AT90USB Datalogger
Hrm, new forum doesn't send me new post notifications.   Looks like you're missing a call to Dataflash_Init() which sets up the physical interface to the chip. Without that,...
Sunday, 14 September 2014 - 06:48
How to add components in ASF
The Dataflash driver is hidden in the GUI, as it broke the unit tests; it requires configuration before it will compile, thus the automated test that adds each module to a new...
Friday, 5 September 2014 - 13:32
ATMega32U2 new board - USB Not Recognized Windows error
The PLL registers don't take an integer value, they're a bitmask of various combinations that give predefined multiplications. That's why you are forced to only have an 8MHz or...
Friday, 5 September 2014 - 10:38