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Si5351 + PIC16F1455 USB controller
Ne mogu da pohvatam sve, gde ti se ovo nalazi "HW nivou sa brojačima" ? Ovo sa gps mi je jasno, zakljuca se na satelit, spojim stm32 na njegov interupt pin koji svake sekunde okine, i na mcu izbrojim broj tikova i taj broj mu je frekvencija. Ovo za HP quarc nisam ispratio pa ne znam o cemu se radi. Edit: ako dobro razumem taj HP Quartz Thermometer si zamenio sa blue pilom koji sad koristis sa tim internim temp senzorom kao termometar?

Neznam deluje mi to sve nepotrebno sa peltier i drzanje temperature na 25 stepeni i uz pomoc varicap diode drzati kapacitet toliki da odrzava neku frekvenciju stabilno ili zeljeno je podesi na neku vrednost koja se trazi, deluje primaljivo ali zasto mora da bude tacna frekvencija ako hocemo da nam master klok bude LMK to mi nije jasno? Mislim ovo je dobra vezba ali zar nije jednostavnije odraditi ovu gore peckicu, zar pecnica kako god da postavis pot zar se nece sama zakljucati na neku odredjenu temperaturu i tu zakucati i ne mrdati? Zast ouopste i moramo da znamo koja je temperatura ako znamo da ce ona da se sama zakuca na neku vrednost, ponovljivu svaki put? Ne znam, ja to vidim skroz drugacije kao koncept, bas tako kako sam gore opisao sa ct7302, e onda se poigrati sa frekvencijom na izlazu iz lmk i tu ce onda trebati jedan mcu sa gps koji ce da broji i da nam da informaciju koje je odstupanje pa se kroz registre samo podesi na lmk zeljena frekvencija. Zar nije tako lakse nego raditi na odrzavanju temperature od 25C ? Kako zimi regulisati taj peltier kada je temperatura okoline ispod 10C , 5C, 0C ? Zar nije bolja peckica koja je recimo zakucana na 65C i koja ima dupli oklop? Cisto pitam, bas me ovo jako zanima. Ja sam vec kupio LMK stoji mi i ceka da razradim koncept pa da krenem da crtam shemicu, sad gledam kako bi bilo najlakse odraditi drajver za sc cut kristal, zato mi se javila ta ideja sa CT jer on u sebi ima to sve reseno i tu nebi bilo problema imao bi se stabilan mclk izlaz iz CT. Samo je sad pitanje koji koncept stabilizacije temperature odraditi za kristal, a ona ideja sa peckicom mi se svidja i deluje mi da je extra dobra i ujedno bi se imao i ref izlaz za neki regulator sto je isto odlicna stvar. Sve bi to moglo da se projektuje tako da stane na jednu modularnu pcb tj ovo bi bio jedan od modula. Tu bi integrisao i stm32 mcu ic direkno na pcb tako da ne kupujem black pill i zauzimam mesto kad mi svejedno ne trebaju svi pinovi sa tog stm32, iskljucivo za ovu potrebu gps sinhronizacije i brojcanika frekvencije i kao kontrolni mcu za podesavanje lmk, osmislio bi ja to lepo. : )
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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 savan - 10-13-2024, 12:14 PM
RE: Si5351 + PIC16F1455 USB controller - by savan - 10-13-2024, 12:36 PM
RE: Si5351 + PIC16F1455 USB controller - by savan - 10-13-2024, 04:37 PM
RE: Si5351 + PIC16F1455 USB controller - by savan - 10-14-2024, 11:21 AM
RE: Si5351 + PIC16F1455 USB controller - by savan - 11-10-2024, 01:30 PM
RE: Si5351 + PIC16F1455 USB controller - by savan - 11-10-2024, 03:46 PM
RE: Si5351 + PIC16F1455 USB controller - by savan - 11-10-2024, 04:14 PM
RE: Si5351 + PIC16F1455 USB controller - by savan - 11-10-2024, 06:20 PM
RE: Si5351 + PIC16F1455 USB controller - by savan - 11-10-2024, 09:01 PM
RE: Si5351 + PIC16F1455 USB controller - by savan - 11-10-2024, 09:58 PM
RE: Si5351 + PIC16F1455 USB controller - by savan - 11-11-2024, 07:16 AM
RE: Si5351 + PIC16F1455 USB controller - by savan - 11-11-2024, 06:39 PM
RE: Si5351 + PIC16F1455 USB controller - by savan - 11-12-2024, 11:30 AM
RE: Si5351 + PIC16F1455 USB controller - by savan - 11-12-2024, 12:31 PM
RE: Si5351 + PIC16F1455 USB controller - by savan - 11-12-2024, 03:50 PM
RE: Si5351 + PIC16F1455 USB controller - by savan - 11-12-2024, 05:59 PM
RE: Si5351 + PIC16F1455 USB controller - by savan - 11-12-2024, 10:13 PM
RE: Si5351 + PIC16F1455 USB controller - by savan - 11-13-2024, 10:45 PM
RE: Si5351 + PIC16F1455 USB controller - by savan - 11-14-2024, 07:31 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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