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ISR Multiplexing strategy with brightness/gamma adjustment
>but then I'd still have to carefully position them and deal with solder paste which I don't currently do.   I have solder paste, but just can't keep it good. I did buy...
Friday, 16 August 2019 - 17:30
ISR Multiplexing strategy with brightness/gamma adjustment
>but I'm not sure what the pulse current is.  Do they rely upon an I/O pin only being able to deliver so much current before it can't do more?   I have not measured...
Friday, 16 August 2019 - 14:56
ISR Multiplexing strategy with brightness/gamma adjustment
I have a number of displays- https://goo.gl/photos/rTCwusquFn... https://photos.app.goo.gl/3hO0dZ...   various pic16f's and avr tiny416   They all use npn/pnp to...
Friday, 16 August 2019 - 05:40
Best 3 pin order for custom UPDI connector...
You could also go with 4 pins, with 1 of the inside pins missing (and no pcb hole) to get a 'keyed' connection. Then you don't have to deal with the 3 attempts to get it right- if...
Thursday, 15 August 2019 - 03:25
ISR Multiplexing strategy with brightness/gamma adjustment
>If you push ahead the compare match only a few cycles then you probably have already missed it.    just set the counter to 0, clear the compare flag since it may...
Thursday, 15 August 2019 - 02:39
megaAVR 0-series Main Clock and SCL
>I increased the sample rate to 24MHz when trying to read 20MHz clock.    Probably not enough. There are also other settings you may have to adjust- threshold levels...
Monday, 12 August 2019 - 14:21
megaAVR 0-series Main Clock and SCL
Here is another piece of useful info- your logic analyzer will be lying to you if you don't have it set to sample fast enough. Trying to get a good reading on a 20Mhz clock when...
Monday, 12 August 2019 - 12:20
megaAVR 0-series Main Clock and SCL
 CCP = 0xD8;  CLKCTRL.MCLKCTRLA &= ~(CLKCTRL_CLKSEL_gm);You cannot reliably do &= or |= on these registers that have protection. You can view the asm source and...
Monday, 12 August 2019 - 10:15
Come Join Us (MPLAB Now Supports AVRs)
>it's only the IDE that is unhappy with the symbols   It hasn't been happy for years. I normally use another code editor while mplabx does the compiling. Either...
Saturday, 10 August 2019 - 12:44
Pullups on UPDI, RST...
I have used a 1k resistor with the SNAP, and works ok. I have not tried other values, or played around with updi speeds though. If the removal of the pulldown didn't harm the...
Friday, 9 August 2019 - 11:12
Attiny44 issue with muliplexing digits on a 7-segment display
>1. I've always heard and thought that ISRs should be as short and uncomplicated as possible   So that you are not impeding on the things that do need to use the isr, and...
Friday, 9 August 2019 - 02:46
[SOLVED] Call a bootloader function from application
>So in the avr-gcc ABI the "addr" parameter will be passed in R25:R24 and the "data" parameter in R23:R22.   The first parameter is the required long since >64k, so r25...
Thursday, 8 August 2019 - 11:59

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