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RPi Pico
#32
VGA i HDMI su zanimljivi ali da vidimo nesto malo ozbiljnije, na primer kako moze da se implementira Sigma-Delta interface sa brojacem od 16bit a jos bolje od 24bit ili 32bit, koji je maksimalni Clock brojaca, za iole ozbiljnije stvari treba 100+MHz, da li moze PLL da se napravi (tesko) koji dize na 1,2,3 pa cak do 11GHz, tesko to moze da odradi taj malac cak i sa FPGA blokovima, moze nesto hibridno da se odradi kao kod PIC-a i njegovim CLC blokovima ali sve se vrti oko brzine Clock-a, mora da se "odšrafi" clock >1GHz za ozbiljne perfomanse PWM-a i Capture/Compare logike kod brojaca.

Zanimljivo je napraviti Sigma-Delta A/D konverter gde je sa tim FPGA celijama odradjena potreba logika, da radi u HW sve sto treba i samo se citaju vrednosti brojaca.
Koji je maksimalni sample-rate vs rezolucija moguca u ovoj kombinaciji sa Rpi Pico?

Problematicno je, counter od 1bit ima jedan Flip-Flop, counter od 24bit ima 24 Flip-Flop-ova, treba bar jos toliko za "capture" registre + nekoliko logickih kapija za core logiku, nisam siguran da ima toliko slobodnih FPGA blokova?!

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Messages In This Thread
RPi Pico - by gorankg - 01-21-2021, 04:01 PM
RE: RPi Pico - by npejcic - 01-21-2021, 04:57 PM
RE: RPi Pico - by gorankg - 01-21-2021, 09:05 PM
RE: RPi Pico - by gorankg - 01-21-2021, 09:17 PM
RE: RPi Pico - by Khadgar2007 - 01-21-2021, 09:38 PM
RE: RPi Pico - by mikikg - 01-21-2021, 09:47 PM
RE: RPi Pico - by ddanijel - 01-21-2021, 10:50 PM
RE: RPi Pico - by mikikg - 01-21-2021, 11:12 PM
RE: RPi Pico - by ddanijel - 01-21-2021, 11:33 PM
RE: RPi Pico - by gorankg - 01-21-2021, 10:21 PM
RE: RPi Pico - by mikikg - 01-21-2021, 10:21 PM
RE: RPi Pico - by mikikg - 01-21-2021, 10:58 PM
RE: RPi Pico - by npejcic - 01-21-2021, 11:14 PM
RE: RPi Pico - by npejcic - 01-21-2021, 11:32 PM
RE: RPi Pico - by mikikg - 01-22-2021, 12:11 AM
RE: RPi Pico - by mikikg - 01-25-2021, 09:33 AM
RE: RPi Pico - by mikikg - 01-25-2021, 12:32 PM
RE: RPi Pico - by mikikg - 01-25-2021, 04:42 PM
RE: RPi Pico - by npejcic - 01-26-2021, 01:26 PM
RE: RPi Pico - by mikikg - 01-26-2021, 07:55 PM
RE: RPi Pico - by gorankg - 01-28-2021, 06:31 PM
RE: RPi Pico - by ddanijel - 01-26-2021, 06:06 PM
RE: RPi Pico - by npejcic - 01-26-2021, 06:13 PM
RE: RPi Pico - by ddanijel - 01-26-2021, 07:31 PM
RE: RPi Pico - by npejcic - 01-26-2021, 08:29 PM
RE: RPi Pico - by gorankg - 01-26-2021, 08:53 PM
RE: RPi Pico - by npejcic - 01-28-2021, 07:07 PM
RE: RPi Pico - by npejcic - 01-28-2021, 07:22 PM
RE: RPi Pico - by npejcic - 02-13-2021, 09:57 AM
RE: RPi Pico - by gorankg - 02-13-2021, 10:50 AM
RE: RPi Pico - by gorankg - 02-13-2021, 05:09 PM
RE: RPi Pico - by mikikg - 02-14-2021, 05:18 PM

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