RFQ/BOM 0 Anmelden / Registrieren

Wähle deinen Standort

Benutzerbild

Ask STM32F103 and AT24Cxx use IIC communication problem.

Hardware design
Dezember 03, 2020 by Beatriz 1708

<div>What is the function of (addr 256)<<1? How to achieve it?


What is the function of (addr/256)<<1? How to achieve it? <div>What is the function of (addr 256)<<1? How to achieve it?

Is adding up the parameters of this statement equal to sending the two parameters separately?

Alle Kommentare

user image

Gwyneth Veröffentlicht am December 3, 2020

(addr/256)<<1

Equivalent to

(addr/256) * 2

0
user image

Sian Veröffentlicht am December 3, 2020

The following is the meaning of "page turning", because 24c4-24c16 are single-byte addressing. When the address exceeds 1 byte (255), a page needs to be replaced. The ones above 24c32 are double-byte addressing, so there is no need to do this.

0
user image

Katerina Veröffentlicht am December 3, 2020

Very simple, because the address of the IIC is the upper 7 bits, and the lowest bit of the address sent is the R/W bit.

When using the device address + data address to send, the data address is bound to move one bit to the left.

0
user image

Sammy Veröffentlicht am December 3, 2020

Isn't 0xA0 the device address? Doesn't it turn to another AT24Cxx if it turns to 0xA1?

0

Schreiben Sie eine Antwort

Sie müssen sich anmelden, um antworten zu können. Anmelden | Registrieren