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Multiple Device Firmware Upgrades of XMEGA with FLIP via USB.
Just posted below while you were writing this and hence the FLASH chip, and I have a flag used to indicate that the application has booted and runs so the bootloader knows that a...
Wednesday, 12 July 2017 - 11:12
Multiple Device Firmware Upgrades of XMEGA with FLIP via USB.
I just have an EEPROM address which holds a byte of flags and one of these is used to indicate that a new firmware is available.  This address is set to some value (whatever...
Wednesday, 12 July 2017 - 11:10
Multiple Device Firmware Upgrades of XMEGA with FLIP via USB.
I have reserved an area in EEPROM which is set when the application is running and this tells the bootloader that it should attempt to receive firmware.  If bootload fails...
Tuesday, 4 July 2017 - 21:43
TC input capture overflow
Can you clarify what you are trying to achieve?  I believe that all of the input capture channels on the xmegas are routed through the event system and when an event is...
Tuesday, 4 July 2017 - 11:08
Unexplainable capture inconsistencies
Wasn't trying to be brash, but don't have a lot of time to write carefully.  Could you write some test code to verify this?  It appears that you have your timer...
Sunday, 2 July 2017 - 21:42
Unexplainable capture inconsistencies
You say In some cases, the current timer value ("now") is LESS than the captured value, and the subtraction stored in current_tick winds up being a negative number. but...
Sunday, 2 July 2017 - 09:02
PLEASE HELP ME FOR THIS CODE!!!!
while (uart_has_data) { // Add a byte to the buffer: esp_data.buff[esp_data.buff_index++] = uart0_getch(); // Check if we have enough bytes to check for a new line: if (...
Sunday, 2 July 2017 - 07:58
Robust storage
I have looked extensively for a competing solution to microSD and have not switched at this stage.  I have a push-push socket microSD card running from 0 degrees C to 70...
Saturday, 24 June 2017 - 12:31
Xmega RTC and external crystal
I am currently using an external 32kHz crystal and DFLL with the 32 Mhz ring oscillator on an ATXMEGA256A3BU.  On startup it takes about 8K cycles of the 32kHz oscillator...
Tuesday, 13 June 2017 - 10:18
Xmega128A1U Speaker tone duration timer / keypad problem
You may have figured this out by now, but...   I think you are toggling your pins during your interrupt routine.  The simple solution is to add some debug code into your...
Thursday, 13 April 2017 - 13:03
Xmega Timer Overflow Accuracy
Thank you, thank you!  I did have that thought go through my mind and i discounted it for what ever reason.  It is working perfectly with the period decremented by 1....
Friday, 31 March 2017 - 13:17
Xmega Timer Overflow Accuracy
I have been furiously testing things out and it appears that when both timer pre-scalers are equal the values always agree even up to 100 kHz, so there is nothing weird going on...
Friday, 31 March 2017 - 11:22

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