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Si5351 + PIC16F1455 USB controller

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Si5351 + PIC16F1455 USB controller
mikikg Offline
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#191
Yesterday, 12:57 PM (This post was last modified: Yesterday, 12:58 PM by mikikg.)
Ah, kako zanimljive rezultate sam dobio sa STM32F401, malim Black Pill, krenuo da pravim GPS frekvencmetar, i napravio sam, radi perfektno, došao sam do 1ppb (0.001ppm) rezolucije uzorkovanja frekvencije (pri 20sec vremenskoj bazi)!

I tu se igrao sa tim, gledao kako šeta i driftuje interni XTAL oscilator u odnosu na GPS 1PPS signal Smile

Onda sam se setio da u F401 tj u skoro svakom MCU ima i interni temperaturni senzor!? Pa to mi treba!
Ima dobar brz 12bit A/D konverter, što da ne, i to mi treba, pa se doda 256x oversampling sa Moving-Average filterom i da vidite kako može da se očita temperatura sa 0.5mK rezolucijom! Smile
To sa temperaturom je za neke sledeće probe, TCXO ...

Evo kako izgleda brojač/frekvencmetar, GPS modul i BlackPill koji radi sa 10 decimalnih mesta, to je bolje/preciznije 100x nego ovde spominjani Fluke 7260A counter!

Nema display, to ide na USB i eventualno mogu da napravim samo GUI aplikaciju za Android telefon, bljuc u USB-C i to je to! Smile

[Image: attachment.php?aid=43489]


Attached Files
.png   temp-mk.png (Size: 82,16 KB / Downloads: 2)
.png   freq-offset-ppb.png (Size: 75,93 KB / Downloads: 2)
.jpg   gps-freq-meter.jpg (Size: 450,34 KB / Downloads: 82)
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Messages In This Thread
Si5351 + PIC16F1455 USB controller - by mikikg - 11-05-2014, 09:51 AM
RE: Si5351 + PIC16F1455 USB controller - by Gosha - 04-12-2016, 01:29 PM
RE: Si5351 + PIC16F1455 USB controller - by Gosha - 04-12-2016, 03:23 PM
RE: Si5351 + PIC16F1455 USB controller - by Gosha - 04-12-2016, 03:50 PM
RE: Si5351 + PIC16F1455 USB controller - by Gosha - 05-22-2017, 08:52 AM
RE: Si5351 + PIC16F1455 USB controller - by Gosha - 07-22-2017, 07:12 PM
RE: Si5351 + PIC16F1455 USB controller - by Gosha - 07-22-2017, 10:25 PM
RE: Si5351 + PIC16F1455 USB controller - by Gosha - 07-23-2017, 02:54 PM
RE: Si5351 + PIC16F1455 USB controller - by Gosha - 08-24-2017, 10:55 PM
RE: Si5351 + PIC16F1455 USB controller - by Gosha - 03-24-2023, 02:20 PM
RE: Si5351 + PIC16F1455 USB controller - by savan - 03-23-2023, 07:32 PM
RE: Si5351 + PIC16F1455 USB controller - by Gosha - 03-24-2023, 09:56 PM
RE: Si5351 + PIC16F1455 USB controller - by savan - 03-26-2023, 03:26 PM
RE: Si5351 + PIC16F1455 USB controller - by savan - 03-27-2023, 12:49 PM
RE: Si5351 + PIC16F1455 USB controller - by savan - 10-15-2023, 04:06 PM
RE: Si5351 + PIC16F1455 USB controller - by savan - 05-12-2023, 07:00 PM
RE: Si5351 + PIC16F1455 USB controller - by savan - 10-15-2023, 08:55 PM
RE: Si5351 + PIC16F1455 USB controller - by savan - 10-16-2023, 03:45 PM
RE: Si5351 + PIC16F1455 USB controller - by savan - 03-29-2024, 02:15 PM
RE: Si5351 + PIC16F1455 USB controller - by savan - 03-30-2024, 08:55 AM
RE: Si5351 + PIC16F1455 USB controller - by savan - 03-30-2024, 10:25 AM
RE: Si5351 + PIC16F1455 USB controller - by savan - 03-30-2024, 10:00 PM
RE: Si5351 + PIC16F1455 USB controller - by savan - 03-31-2024, 08:26 AM
RE: Si5351 + PIC16F1455 USB controller - by savan - 03-31-2024, 05:01 PM
RE: Si5351 + PIC16F1455 USB controller - by savan - 05-24-2024, 08:44 AM
RE: Si5351 + PIC16F1455 USB controller - by mikikg - Yesterday, 12:57 PM
RE: Upravo stiglo - by Khadgar2007 - 05-19-2017, 06:27 PM
RE: Upravo stiglo - by mikikg - 05-19-2017, 06:44 PM
RE: Upravo stiglo - by Khadgar2007 - 05-19-2017, 07:05 PM
RE: Upravo stiglo - by mikikg - 05-19-2017, 07:12 PM
RE: Upravo stiglo - by emiSAr - 05-19-2017, 07:41 PM
RE: Upravo stiglo - by mikikg - 05-19-2017, 09:57 PM
RE: Upravo stiglo - by Milan94 - 05-19-2017, 10:17 PM
RE: Upravo stiglo - by Gosha - 05-19-2017, 10:27 PM
RE: Upravo stiglo - by mikikg - 05-19-2017, 10:28 PM
RE: Upravo stiglo - by Milan94 - 05-19-2017, 10:33 PM
RE: Upravo stiglo - by Khadgar2007 - 05-19-2017, 10:38 PM
RE: Upravo stiglo - by mikikg - 05-19-2017, 10:41 PM
RE: Upravo stiglo - by Milan94 - 05-19-2017, 10:52 PM
RE: Upravo stiglo - by mikikg - 05-19-2017, 11:05 PM
RE: Upravo stiglo - by Khadgar2007 - 05-19-2017, 11:15 PM
RE: Upravo stiglo - by Milan94 - 05-19-2017, 11:24 PM
RE: Upravo stiglo - by mikikg - 05-19-2017, 11:44 PM
RE: Upravo stiglo - by Milan94 - 05-20-2017, 12:01 AM
RE: Upravo stiglo - by Khadgar2007 - 05-20-2017, 12:06 AM
RE: Upravo stiglo - by mikikg - 05-20-2017, 12:10 AM
RE: Upravo stiglo - by mikikg - 05-20-2017, 12:40 AM
RE: Upravo stiglo - by Khadgar2007 - 05-20-2017, 06:53 AM
RE: Upravo stiglo - by progster - 05-20-2017, 07:57 AM
RE: Upravo stiglo - by Khadgar2007 - 05-20-2017, 09:27 AM
RE: Upravo stiglo - by mikikg - 05-20-2017, 12:52 PM
RE: Upravo stiglo - by npejcic - 05-20-2017, 01:10 PM
RE: Upravo stiglo - by mikikg - 05-20-2017, 01:24 PM
RE: Upravo stiglo - by npejcic - 05-20-2017, 01:30 PM
RE: Upravo stiglo - by mikikg - 05-20-2017, 01:34 PM
RE: Upravo stiglo - by Khadgar2007 - 05-20-2017, 02:33 PM
RE: Upravo stiglo - by mikikg - 05-20-2017, 02:48 PM

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