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virt2real.ru • Просмотр темы - Вопрос про АЦП




 

Управляем чем угодно откуда угодно

Вопрос про АЦП

Виртурилка, 3G/4G, WiFi, моторчики, датчики, GPS и прочее - питание, драйвера, совместимость и т.д.

Вопрос про АЦП

Сообщение phoenix367 » 01 окт 2013, 23:38

Сейчас разбираюсь со встроенным в виртурилку АЦП. Во-первых у меня сильное подозрение, что в админке опорное напряжение для перевода целочисленного значения с выхода АЦП проставлено от балды. Ну не может быть там 14 вольт опорного. Это подтверждается тем, что выдает моя самописная программка. Если соединить вход одного из каналов АЦП с +3.3В, то показывается значение 954 - 949 в зависимости от канала. Это очень близко к максимально возможному значению 1024. Значит опорное напряжение где-то 3.5В.

Отсюда вопрос к разработчикам - какое в действительности опорное напряжение у АЦП или до каких пределов он может напряжение измерять?
phoenix367
 
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Re: Вопрос про АЦП

Сообщение Gol » 02 окт 2013, 19:18

Аватара пользователя
Gol
 
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Откуда: Тула-Свободный-Щёкино-Тула-Москва


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