Post Created date
324PB max gnd and vcc current...
The 324PB is like 328PB made on a newer proces (best know as those where the high power osc. don't work).   Those chips are for toy and hobby, avoid using them ...
Tuesday, 13 August 2019 - 17:24
Split from: ATTINY13 timer and interrupts for reading RC receiver signal
How precise does it need to be ? Are there always a freq on the pin ? Are there noise ? How many periods of the freq. before you change the port.   I would probably just make...
Wednesday, 31 July 2019 - 18:02
500 ohms
The next step would be to make something like a 2 Watt 500 ohm resistor out of 1/4 watt 120 ohm resistors.   And the next step would be to make a program that...
Thursday, 25 July 2019 - 09:58
What was your first micro programming experience?
So, to this day what was everyone's favourite CPU architecture?   it's hard  but like cliff the zero page on the 6502 and clean instructions set of the 68000.   And...
Monday, 22 July 2019 - 22:53
What was your first micro programming experience?
from #3 I think back then most of us separated pretty decisively into the 8080 or 6800 camps. Am I the only 6502 guy ? My first computer was a commodore Pet in 1980, and very...
Monday, 22 July 2019 - 12:54
an efficient way to find out the duration of a function or ISR routine
There are many ways to check how long time some (ISR) code take. And sometimes you don't care about avg. speed but only worst case.     I most often use a timer ISR...
Saturday, 20 July 2019 - 10:47
Has anyone seen a port bit fail?
For now make sure that the internal resistor is enabled in the FW :)   100k should be fine, unless it's a long wire, but if the driver (from the outside) can pull 10k...
Monday, 15 July 2019 - 13:54
Under what circumstances would you *NOT* want to use the BOD?
BOD use power, so battery powered things could benefit from having it disabled. 
Sunday, 14 July 2019 - 15:52
Help with DDS and PWM
please show the code you use (inclusive, sine-table and how you make the trigger signal).(any other ISR's enabled?, empty main ? how "empty" :) )   How long does the ISR take...
Saturday, 13 July 2019 - 08:58
Problems after upgrading GCC compiler to 9.1.0
I don't want to hijack this thread but does the compilers handle __flash as memory mapped, or does they still use LPM ? One would hope that 9.1.0 would do it (it should make...
Friday, 12 July 2019 - 17:23
Quiz for fun, I/O pin and 4 levels
About where the code run , back in the old days (I think it was late 80's), one of my friends had a PC (80286 I think), that had a LED bar on the case, that showed where the code...
Friday, 12 July 2019 - 11:32
Help with DDS and PWM
This is not a filter fault !  If a filter makes it better it's because it blur the sw error. Find the error first. 
Thursday, 11 July 2019 - 11:34