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Analog mux settling time on Attiny24/44/84
I'm considering using the analog mux  and  analog compare to sample multiple inputs.   I see that the interrupt must be disabled when changing the analog mux ...
Monday, 4 November 2019 - 23:04
Getting .c file to recompile in all projects in solution
I have a solution set up with 12 projects.  Each project has only one file--main.c.     Symbolic constants are defined in the Project properties. ...
Tuesday, 22 October 2019 - 17:16
Studio 7--Where are the build configurations saved?
I have a solution that consists of multiple build configurations.   The source and .atsln files are under source control (svn).   But ,when I try building on other...
Sunday, 12 May 2019 - 14:47
Does AtmelIce Hi-Z ISP pins while in debugWire mode?
I'm having issues getting into and out of debugWire mode.  I had big time problems back when I used a Dragon, but I haven't had similar problems after I switched to the...
Saturday, 19 January 2019 - 20:43
Only SPI modes 0 and 1 supported by Attiny84 USI?
Just now reading more fine print in the ATTiny84 spec.  I think I can only do SPI slave in modes 0 or 1 using the USI module.   Seems that way after reading AVR319 too...
Saturday, 12 January 2019 - 21:40
Can't use ADC0 if VCC is selected as reference?
Just saw this note in the Attiny84 spec (page 145, section 16.13.1):   Internal voltage reference options may not be used if an external voltage is being applied to the AREF...
Friday, 11 January 2019 - 20:28
Program control gets messed up first function return when debugging
Attiny84, Atmel Ice, Studio 7, debugWire   WatchDog timer is NOT enabled.   Changed compile options to -O0 and -g3 (but I tried other -g and it didn't make a difference...
Wednesday, 9 January 2019 - 14:15
ATTiny Output Directly Driving Regulator Enable Pin
Switching regulator modules typically have an enable input with a high resistance internal pullup to Vin.   Vin is much higher than the Attiny Vcc--in my case, up to 25 volts...
Sunday, 21 October 2018 - 13:17
What happens if an out of range address is used with eeprom_write_byte (and eeprom_read_byte)?
I just discovered a typo in a bootloader application I wrote several years ago.  I haven't seen any problems as a result, but I want to understand the implications better....
Thursday, 1 March 2018 - 21:58
Studio 6.2 Appears to have wrong addresses for Timer1 regs on Attiny24A/Simulator
I'm debugging an attiny24a using the simulator.   I've made sure the device is set to attiny2a4 and that the compiler is getting invoked with the -mmcu=attiny24a...
Wednesday, 25 January 2017 - 23:10
ATMEL ICE SPI Electrical Characteristics
I'm trying to find the DC characteristics for the SPI output lines SCK and MOSI.  For example, Voh and Vol at some source and sink currents.   Does anyone have a link to...
Tuesday, 24 January 2017 - 00:31
Does Studio 7 Fix "Tool Busy" Issue
I'm still running Studio 6.2.   I've always been sorry when I moved to a newer version of Studio.  Seems there's always a hassle getting going again.   However...
Friday, 6 January 2017 - 20:41

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