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having bootloader but not starting through it
It is possible, but it is not recommended. Since correctly working application is required to run the bootloader, you won't be able to run the bootloader if there is...
Thursday, 12 April 2018 - 11:09
Atmega - Jumping From Firmware App To BootLoader
clawson wrote:The value of (MCUSR >> PORF) depends not only on PORF bit state. while unusual it's an interesting approach but it lacks an & 1 It is unusual and...
Friday, 6 April 2018 - 11:36
Atmega - Jumping From Firmware App To BootLoader
My questions: How do you know that you correctly clear status register prior to jump to bootloader and it is set in the bootloader? Have you verified this with debugger? Are you...
Friday, 6 April 2018 - 07:36
Get data out of ISR
awneil wrote: only if they were qualified as 'static' ? If there was the same obiect created in multiple source files without 'static', there would be linker error.
Tuesday, 3 April 2018 - 14:09
atmega8 got hot!!!
I see two potential issues. 1. VCC is not connected to pin20 and GND is not connected to pin22. They should be connected, as well as pins 7 and 8. 2. There is no resistor...
Tuesday, 3 April 2018 - 14:03
Get data out of ISR
I have another guess. Maybe the ISR is in one source file and RTCGetHours() and other functions are in different source files. If it was, both source files would have their...
Tuesday, 3 April 2018 - 13:57
Get data out of ISR
Static and volatile are independent of each other and use both of them is nothing unusual.
Tuesday, 3 April 2018 - 13:16
Get data out of ISR
My guess is that the ISR is not executed. Since there is no complete code attached, I can only guess.
Tuesday, 3 April 2018 - 07:25
How attach to target use AVR Dragon for Atmega328 ?
mixer821 wrote:this item is gray and i can't click "attach to target". I use AVR Dragon and Atmel ICE with XMEGA-s and the "Attach to target" button is active when ICE is selected...
Monday, 26 February 2018 - 10:18
AVR Dragon in 2018
How many Atmegas do you need to unbrick? If only few, I think it's better to buy ICE and just throw these Atmegas. I use both Dragon and ICE frequently and I can tell...
Monday, 26 February 2018 - 07:48
Memory size limit and workarounds?
Empty Set wrote: Hello,   Thanks for all the advice. I understand that I'm hitting the SRAM limit, and I might look into another solution for storing ADC readings involving...
Tuesday, 31 October 2017 - 14:28
Memory size limit and workarounds?
Empty Set wrote:(one for storing around 100 readings for a filter, and one for storing a few thousand of those filtered readings to keep a short history) This is quite large...
Tuesday, 31 October 2017 - 13:35

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