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STM32 generic board
Nema na čemu Progster.

Mnogi "matori vuci" koji se nisu kačili sa brzom impulsnom elektronikom, a koji su se dohvatili modernih MCU sa tranzicijama reda <20nS, znali su da "natrče" na neterminisano parče pcb koje ih maltene "u grob otera" jer se nedeljama namuče sa nekom sasvim prosečnom periferijom koja je malo odmaknuta, a zazvoni joj reflektovani talas na vodu i "prlja" podatke.

Kada god nisi siguran u prilagođenje voda i postojanje moguće refleksije, ne bilo ti teško, dodaj svakom pinu na MCU serijski otpornik od koju stotinu ohm...

Ja po defaultu dodajem na 5V MCU oko 680R na svaki pin (na 3V3 390R), pa tek iza radim šta želim.
Korist je višestruka:

- prigušio si refleksije i RLC odzvonjavanja čak i ako vodiš dugačke pcb iza,

- veoma si rasteretio MCU od kapacitativnih tereta iza, gde možeš da se provučeš sa manjim decoupling kondovima na MCU,

- sprečio si sam sebe da greškom ubiješ MCU ako mu konfigurišeš slučajno željeni input pin, kao out pin, a tu ti odnekud dolazi signal H :-)

- direktno iza kačiš većinu optokaplera ili led, jer već imaš optimalan serijski otpornik...

- imaš taj isti otpornik kao potencijalni jumper kojim možeš lako da otkačiš neki pin od okolnog sveta, a da ne seckaš pcb :-)

Eto tako.
Kad praviš pcb, odmah predvidiš fest do pinova po jedan otpornik, SMD ili TH, sve jedno. Malkice više košta, ali bar otpornici nisu skupi.

Pozz
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Messages In This Thread
STM32 generic board - by gigabyte091 - 02-15-2017, 01:23 PM
RE: STM32 generic board - by gigabyte091 - 02-15-2017, 07:21 PM
RE: STM32 generic board - by gorankg - 02-15-2017, 09:02 PM
RE: STM32 generic board - by npejcic - 02-15-2017, 10:51 PM
RE: STM32 generic board - by gigabyte091 - 02-16-2017, 05:48 AM
RE: STM32 generic board - by gorankg - 02-16-2017, 07:25 AM
RE: STM32 generic board - by gigabyte091 - 02-16-2017, 07:56 AM
RE: STM32 generic board - by gorankg - 02-16-2017, 09:39 AM
RE: STM32 generic board - by gigabyte091 - 02-16-2017, 10:53 AM
RE: STM32 generic board - by gorankg - 02-16-2017, 11:11 AM
RE: STM32 generic board - by gigabyte091 - 02-16-2017, 12:18 PM
RE: STM32 generic board - by gorankg - 02-16-2017, 12:49 PM
RE: STM32 generic board - by gigabyte091 - 02-16-2017, 07:48 PM
RE: STM32 generic board - by gorankg - 02-16-2017, 11:02 PM
RE: STM32 generic board - by gigabyte091 - 02-17-2017, 06:56 AM
RE: STM32 generic board - by gigabyte091 - 03-02-2017, 08:50 AM
RE: STM32 generic board - by mikikg - 03-02-2017, 12:31 PM
RE: STM32 generic board - by mikikg - 03-02-2017, 12:41 PM
RE: STM32 generic board - by mikikg - 03-02-2017, 02:02 PM
RE: STM32 generic board - by gigabyte091 - 03-02-2017, 03:49 PM
RE: STM32 generic board - by me[R]a - 03-02-2017, 05:25 PM
RE: STM32 generic board - by vojinilic - 03-02-2017, 09:52 PM
RE: STM32 generic board - by gigabyte091 - 03-02-2017, 07:51 PM
RE: STM32 generic board - by mikikg - 03-02-2017, 11:42 PM
RE: STM32 generic board - by gigabyte091 - 03-03-2017, 07:53 AM
RE: STM32 generic board - by yugaja - 03-03-2017, 12:34 PM
RE: STM32 generic board - by mikikg - 03-03-2017, 01:39 PM
RE: STM32 generic board - by npejcic - 03-03-2017, 01:49 PM
RE: STM32 generic board - by mikikg - 03-03-2017, 02:08 PM
RE: STM32 generic board - by mikikg - 03-03-2017, 02:37 PM
RE: STM32 generic board - by mikikg - 03-03-2017, 02:57 PM
RE: STM32 generic board - by npejcic - 03-03-2017, 03:18 PM
RE: STM32 generic board - by mikikg - 03-03-2017, 03:30 PM
RE: STM32 generic board - by npejcic - 03-03-2017, 03:54 PM
RE: STM32 generic board - by gigabyte091 - 03-03-2017, 05:50 PM
RE: STM32 generic board - by mikikg - 03-05-2017, 12:10 AM
RE: STM32 generic board - by mikikg - 03-05-2017, 01:45 AM
RE: STM32 generic board - by gigabyte091 - 03-05-2017, 07:22 AM
RE: STM32 generic board - by npejcic - 03-05-2017, 09:52 AM
RE: STM32 generic board - by gigabyte091 - 03-05-2017, 10:41 AM
RE: STM32 generic board - by npejcic - 03-05-2017, 11:27 AM
RE: STM32 generic board - by mikikg - 03-05-2017, 01:42 PM
RE: STM32 generic board - by mikikg - 03-05-2017, 02:21 PM
RE: STM32 generic board - by yugaja - 03-06-2017, 10:30 AM
RE: STM32 generic board - by npejcic - 03-06-2017, 11:31 AM
RE: STM32 generic board - by yugaja - 03-06-2017, 11:37 AM
RE: STM32 generic board - by npejcic - 03-06-2017, 01:31 PM
RE: STM32 generic board - by gorankg - 03-06-2017, 01:57 PM
RE: STM32 generic board - by mikikg - 03-06-2017, 02:54 PM
RE: STM32 generic board - by mikikg - 03-06-2017, 03:56 PM
RE: STM32 generic board - by gigabyte091 - 03-06-2017, 04:21 PM
RE: STM32 generic board - by npejcic - 03-06-2017, 05:58 PM
RE: STM32 generic board - by mikikg - 03-06-2017, 06:04 PM
RE: STM32 generic board - by Macola - 03-06-2017, 07:22 PM
RE: STM32 generic board - by Macola - 03-06-2017, 07:38 PM
RE: STM32 generic board - by Macola - 03-06-2017, 07:47 PM
RE: STM32 generic board - by Macola - 03-06-2017, 08:15 PM
RE: STM32 generic board - by yugaja - 03-07-2017, 05:13 PM
RE: STM32 generic board - by Milan94 - 03-07-2017, 03:09 PM
RE: STM32 generic board - by vojinilic - 03-07-2017, 03:14 PM
RE: STM32 generic board - by mikikg - 03-07-2017, 03:23 PM
RE: STM32 generic board - by Macola - 03-07-2017, 05:34 PM
RE: STM32 generic board - by Macola - 03-07-2017, 05:50 PM
RE: STM32 generic board - by vojinilic - 03-07-2017, 08:03 PM
RE: STM32 generic board - by vojinilic - 03-07-2017, 08:54 PM
RE: STM32 generic board - by mikikg - 03-07-2017, 11:21 PM
RE: STM32 generic board - by Macola - 03-07-2017, 11:38 PM
RE: STM32 generic board - by mikikg - 03-08-2017, 04:03 AM
RE: STM32 generic board - by npejcic - 03-08-2017, 06:15 PM
RE: STM32 generic board - by mikikg - 03-10-2017, 10:06 AM
RE: STM32 generic board - by mikikg - 03-10-2017, 10:19 AM
RE: STM32 generic board - by gigabyte091 - 03-17-2017, 02:25 PM
RE: STM32 generic board - by progster - 07-13-2017, 04:49 PM
RE: STM32 generic board - by mikikg - 07-13-2017, 06:37 PM
RE: STM32 generic board - by Macola - 07-13-2017, 08:00 PM
RE: STM32 generic board - by progster - 07-13-2017, 09:13 PM
RE: STM32 generic board - by vojinilic - 07-14-2017, 08:04 AM
RE: STM32 generic board - by progster - 07-14-2017, 03:23 PM
RE: STM32 generic board - by Milan94 - 07-14-2017, 04:33 PM
RE: STM32 generic board - by progster - 07-14-2017, 04:45 PM
RE: STM32 generic board - by dlalkovic - 07-14-2017, 04:46 PM
RE: STM32 generic board - by progster - 07-14-2017, 04:50 PM
RE: STM32 generic board - by mikikg - 07-14-2017, 05:05 PM
RE: STM32 generic board - by progster - 07-14-2017, 05:09 PM
RE: STM32 generic board - by mikikg - 07-14-2017, 05:12 PM
RE: STM32 generic board - by progster - 07-14-2017, 05:19 PM
RE: STM32 generic board - by mikikg - 07-14-2017, 05:31 PM
RE: STM32 generic board - by progster - 07-14-2017, 05:36 PM
RE: STM32 generic board - by mikikg - 07-14-2017, 05:37 PM
RE: STM32 generic board - by progster - 07-14-2017, 05:43 PM
RE: STM32 generic board - by mikikg - 07-14-2017, 05:45 PM
RE: STM32 generic board - by progster - 07-14-2017, 05:46 PM
RE: STM32 generic board - by Macola - 07-14-2017, 06:46 PM
RE: STM32 generic board - by progster - 07-15-2017, 04:56 PM
RE: STM32 generic board - by progster - 07-15-2017, 05:13 PM
RE: STM32 generic board - by mikikg - 07-15-2017, 06:02 PM
RE: STM32 generic board - by Macola - 07-15-2017, 06:23 PM
RE: STM32 generic board - by progster - 07-15-2017, 07:01 PM
RE: STM32 generic board - by mikikg - 07-15-2017, 07:06 PM
RE: STM32 generic board - by progster - 07-15-2017, 07:25 PM
RE: STM32 generic board - by mikikg - 07-15-2017, 08:06 PM
RE: STM32 generic board - by Macola - 07-15-2017, 10:28 PM
RE: STM32 generic board - by progster - 07-15-2017, 10:39 PM
RE: STM32 generic board - by Macola - 07-15-2017, 11:12 PM
RE: STM32 generic board - by mikikg - 07-31-2017, 09:03 PM
RE: STM32 generic board - by npejcic - 08-01-2017, 05:43 PM
RE: STM32 generic board - by npejcic - 08-04-2017, 09:33 PM
RE: STM32 generic board - by vsavic - 08-04-2017, 09:38 PM
RE: STM32 generic board - by npejcic - 08-04-2017, 10:44 PM
RE: STM32 generic board - by mikikg - 08-15-2017, 05:25 PM
RE: STM32 generic board - by bogdan.kecman - 08-15-2017, 05:49 PM
RE: STM32 generic board - by npejcic - 08-16-2017, 01:46 PM
RE: STM32 generic board - by mikikg - 08-16-2017, 02:22 PM
RE: STM32 generic board - by npejcic - 08-17-2017, 09:40 AM
RE: STM32 generic board - by Makso - 09-03-2017, 06:56 PM
RE: STM32 generic board - by npejcic - 09-03-2017, 07:10 PM
RE: STM32 generic board - by mikikg - 09-03-2017, 07:40 PM
RE: STM32 generic board - by vsavic - 09-26-2017, 02:49 PM
RE: STM32 generic board - by mikikg - 09-29-2017, 11:45 AM
RE: STM32 generic board - by vsavic - 09-30-2017, 09:30 PM
RE: STM32 generic board - by vojinilic - 09-27-2017, 09:06 AM
RE: STM32 generic board - by mikikg - 09-27-2017, 09:52 AM
RE: STM32 generic board - by vojinilic - 09-27-2017, 12:23 PM
RE: STM32 generic board - by mikikg - 09-27-2017, 01:03 PM
RE: STM32 generic board - by vojinilic - 09-27-2017, 01:08 PM
RE: STM32 generic board - by mikikg - 09-27-2017, 01:17 PM
RE: STM32 generic board - by npejcic - 09-27-2017, 09:38 PM
RE: STM32 generic board - by npejcic - 09-27-2017, 09:44 PM
RE: STM32 generic board - by vojinilic - 09-28-2017, 11:30 AM
RE: STM32 generic board - by mikikg - 09-28-2017, 11:50 AM
RE: STM32 generic board - by vojinilic - 09-28-2017, 11:55 AM
RE: STM32 generic board - by mikikg - 09-28-2017, 12:07 PM
RE: STM32 generic board - by vojinilic - 09-28-2017, 01:33 PM
RE: STM32 generic board - by npejcic - 09-29-2017, 12:40 PM
RE: STM32 generic board - by mikikg - 09-29-2017, 01:08 PM
RE: STM32 generic board - by mikikg - 09-29-2017, 01:23 PM
RE: STM32 generic board - by mikikg - 10-01-2017, 07:36 PM
RE: STM32 generic board - by vsavic - 10-02-2017, 02:45 PM
RE: STM32 generic board - by mikikg - 10-05-2017, 11:31 PM
RE: STM32 generic board - by yugaja - 10-06-2017, 01:06 PM
RE: STM32 generic board - by mikikg - 10-06-2017, 01:22 PM
RE: STM32 generic board - by yugaja - 10-06-2017, 01:50 PM
RE: STM32 generic board - by npejcic - 10-07-2017, 11:29 AM
RE: STM32 generic board - by gorankg - 10-07-2017, 01:05 PM
RE: STM32 generic board - by mikikg - 10-07-2017, 12:10 PM
RE: STM32 generic board - by npejcic - 10-07-2017, 12:29 PM
RE: STM32 generic board - by mikikg - 10-07-2017, 12:42 PM
RE: STM32 generic board - by npejcic - 10-07-2017, 03:19 PM
RE: STM32 generic board - by gorankg - 10-07-2017, 04:06 PM
RE: STM32 generic board - by npejcic - 10-07-2017, 04:40 PM
RE: STM32 generic board - by gorankg - 10-07-2017, 07:16 PM
RE: STM32 generic board - by npejcic - 10-07-2017, 07:47 PM
RE: STM32 generic board - by npejcic - 10-07-2017, 07:53 PM
RE: STM32 generic board - by mikikg - 10-07-2017, 08:40 PM
RE: STM32 generic board - by npejcic - 10-07-2017, 08:52 PM
RE: STM32 generic board - by gorankg - 10-07-2017, 10:02 PM
RE: STM32 generic board - by mikikg - 10-08-2017, 07:31 AM
RE: STM32 generic board - by mikikg - 10-08-2017, 07:53 AM
RE: STM32 generic board - by mikikg - 10-08-2017, 10:43 AM
RE: STM32 generic board - by npejcic - 10-08-2017, 11:29 AM
RE: STM32 generic board - by mikikg - 10-08-2017, 08:34 PM
RE: STM32 generic board - by npejcic - 10-08-2017, 08:57 PM
RE: STM32 generic board - by mikikg - 10-12-2017, 12:16 PM
RE: STM32 generic board - by Macola - 10-12-2017, 04:22 PM
RE: STM32 generic board - by gorankg - 10-13-2017, 07:15 AM
RE: STM32 generic board - by npejcic - 10-13-2017, 08:51 AM
RE: STM32 generic board - by yugaja - 10-13-2017, 09:25 AM
RE: STM32 generic board - by vojinilic - 10-13-2017, 09:58 AM
RE: STM32 generic board - by yugaja - 10-13-2017, 10:13 AM
RE: STM32 generic board - by vojinilic - 10-13-2017, 10:46 AM
RE: STM32 generic board - by mikikg - 10-13-2017, 11:10 AM
RE: STM32 generic board - by gorankg - 10-13-2017, 11:39 AM
RE: STM32 generic board - by mikikg - 10-13-2017, 02:33 PM
RE: STM32 generic board - by mikikg - 10-13-2017, 11:57 AM
RE: STM32 generic board - by mikikg - 10-13-2017, 12:32 PM
RE: STM32 generic board - by gorankg - 10-13-2017, 12:37 PM
RE: STM32 generic board - by mikikg - 10-13-2017, 12:48 PM
RE: STM32 generic board - by yugaja - 10-13-2017, 01:00 PM
RE: STM32 generic board - by mikikg - 10-13-2017, 01:13 PM
RE: STM32 generic board - by yugaja - 10-13-2017, 02:54 PM
RE: STM32 generic board - by mikikg - 10-13-2017, 03:23 PM
RE: STM32 generic board - by yugaja - 10-13-2017, 03:59 PM
RE: STM32 generic board - by ronovar - 10-14-2017, 08:51 PM
RE: STM32 generic board - by gorankg - 10-14-2017, 09:40 PM
RE: STM32 generic board - by mikikg - 10-14-2017, 09:17 PM
RE: STM32 generic board - by ronovar - 10-14-2017, 10:30 PM
RE: STM32 generic board - by mikikg - 10-14-2017, 11:07 PM
RE: STM32 generic board - by mikikg - 10-15-2017, 12:09 AM
RE: STM32 generic board - by mikikg - 10-15-2017, 12:38 PM
RE: STM32 generic board - by vojinilic - 10-15-2017, 01:06 PM
RE: STM32 generic board - by yugaja - 10-15-2017, 01:13 PM
RE: STM32 generic board - by mikikg - 10-15-2017, 01:34 PM
RE: STM32 generic board - by vojinilic - 10-15-2017, 02:13 PM
RE: STM32 generic board - by mikikg - 10-15-2017, 02:26 PM
RE: STM32 generic board - by vojinilic - 10-15-2017, 02:35 PM
RE: STM32 generic board - by mikikg - 10-15-2017, 02:46 PM
RE: STM32 generic board - by mikikg - 10-15-2017, 04:36 PM
RE: STM32 generic board - by mikikg - 10-15-2017, 05:22 PM
RE: STM32 generic board - by vojinilic - 10-15-2017, 07:06 PM
RE: STM32 generic board - by mikikg - 10-16-2017, 04:31 AM
RE: STM32 generic board - by mikikg - 10-17-2017, 09:44 AM
RE: STM32 generic board - by ronovar - 10-17-2017, 09:58 AM
RE: STM32 generic board - by mikikg - 10-17-2017, 09:11 PM
RE: STM32 generic board - by prasimix - 10-24-2017, 01:44 PM
RE: STM32 generic board - by mikikg - 10-24-2017, 02:04 PM
RE: STM32 generic board - by prasimix - 10-24-2017, 02:37 PM
RE: STM32 generic board - by mikikg - 10-24-2017, 04:29 PM
RE: STM32 generic board - by prasimix - 10-24-2017, 10:03 PM
RE: STM32 generic board - by gorankg - 10-24-2017, 08:01 PM
RE: STM32 generic board - by prasimix - 10-24-2017, 10:10 PM
RE: STM32 generic board - by gorankg - 10-24-2017, 10:53 PM
RE: STM32 generic board - by prasimix - 10-24-2017, 11:13 PM
RE: STM32 generic board - by mikikg - 10-24-2017, 09:58 PM
RE: STM32 generic board - by mikikg - 10-24-2017, 10:08 PM
RE: STM32 generic board - by gorankg - 10-24-2017, 10:40 PM
RE: STM32 generic board - by mikikg - 10-24-2017, 11:27 PM
RE: STM32 generic board - by mikikg - 10-25-2017, 12:24 AM
RE: STM32 generic board - by prasimix - 10-25-2017, 06:57 AM
RE: STM32 generic board - by mikikg - 10-25-2017, 02:51 AM
RE: STM32 generic board - by mikikg - 10-25-2017, 11:44 AM
RE: STM32 generic board - by mikikg - 10-27-2017, 04:18 PM
RE: STM32 generic board - by gorankg - 10-27-2017, 07:09 PM
RE: STM32 generic board - by yugaja - 10-27-2017, 09:41 PM
RE: STM32 generic board - by mikikg - 11-07-2017, 02:52 PM
RE: STM32 generic board - by mikikg - 11-07-2017, 08:16 PM
RE: STM32 generic board - by gorankg - 11-07-2017, 09:18 PM

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