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ОАО НПО "ФИЗИКА" :: Просмотр темы - 1582ВЖ3-0254
ОАО НПО "ФИЗИКА"
https://npofizika.ru/forum/

1582ВЖ3-0254
https://npofizika.ru/forum/viewtopic.php?f=16&t=59
Страница 1 из 1

Автор:  osipoff [ 21 янв 2020, 03:04 ]
Заголовок сообщения:  1582ВЖ3-0254

Всем доброго времени суток!
Хотелось бы в этой теме обсуждать контроллер 1582ВЖ3-0254 и особенности его работы.
Такие вопросы:
1. Микросхемы Н1836ВМ3 и Н1836ВМ4 давно не производятся. Замена на 1806ВМ3У и 1806ВМ4У
соответственно. Кроме того, Ангстрем выпускает и 1806ВМ5У. Если верить имеющимся данным
это тоже что и 1806ВМ3У но с тактовой частотой в два раза выше - до 16 МГц.
2. Характеристики 1806ВМ5У позволяют работать на более высоких частотах - до 20 МГц и выше.
3. Что будет если к контроллеру 1582ВЖ3-0254 подключить 1806ВМ5У (вместо Н1806ВМ3) и
сопроцессор 1806ВМ4У (вместо Н1836ВМ4) как показано на схеме минимальной конфигурации
выложенной на сайте ? На каких частотах сможет работать сия плата ?

Автор:  Власов В.А. [ 28 янв 2020, 17:08 ]
Заголовок сообщения:  Re: 1582ВЖ3-0254

Все упомянутые микросхемы нами опробованы с положительным результатом. Последний системный контроллер под номером 277 позволял работать на частотах вплоть до 24МГц, позволял программно менять эту частоту, сбрасывал частоту до минимальной в случае зависания (по WD таймеру), работал с различной памятью, позволял загрузку по RS-232 и т.д. и т.п. и это было давно и, к сожалению, это уже никому не было надо. Раньше и трава была зеленее!

Автор:  osipoff [ 01 фев 2020, 00:41 ]
Заголовок сообщения:  Re: 1582ВЖ3-0254


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