https://w.electrodragon.com/w/index.php?action=history&feed=atom&title=Category%3AEEPROM 2026-07-22T15:52:31Z Revision history for this page on the wiki MediaWiki 1.37.2 https://w.electrodragon.com/w/index.php?title=Category:EEPROM&diff=31436&oldid=prev 2021-05-27T05:26:23Z

<p>Created page with &quot;== EEPROM == Common used EEPROM ICs * AT24C32 ~ 256 * AT24C256 = ATMLH624 / ATMLH612 * AT24C64 = 256 pages of 32 bytes each = 8192 x 8 bits * AT24C128 = 256/512 pages of 64-...&quot;</p> <p><b>New page</b></p><div>== EEPROM ==<br /> Common used EEPROM ICs<br /> * AT24C32 ~ 256<br /> * AT24C256 = ATMLH624 / ATMLH612 <br /> <br /> * AT24C64 = 256 pages of 32 bytes each = 8192 x 8 bits<br /> * AT24C128 = 256/512 pages of 64-bytes each = 16384 * 8 bits<br /> * AT24C256 = 32768 * 8 bits <br /> === Arduino EEPROM Demo Code and Wiring ===<br /> &lt;syntaxhighlight lang=&quot;arduino&quot;&gt;<br /> #include &lt;Wire.h&gt;<br /> #define EEPROM_END 0x50<br /> String text = &quot;electrodragon.com&quot;;<br /> int start = 0;<br /> int count = 0;<br /> void setup(){<br /> Wire.begin();<br /> Serial.begin(9600);<br /> Serial.println(&quot;Writing in EEPROM...&quot;);<br /> for (int x=start; x&lt;text.length(); x++){<br /> i2c_eeprom_write(EEPROM_END, x, byte(text.charAt(x)));<br /> delay(5);<br /> }<br /> Serial.println(&quot;written completed!!!&quot;);<br /> Serial.println(&quot;&quot;);<br /> }<br /> void loop(){<br /> for (int x=start; x&lt;text.length(); x++){<br /> Serial.print(i2c_eeprom_read(EEPROM_END, x));<br /> }<br /> Serial.print(&quot; count number: &quot;);<br /> Serial.println(count);<br /> count+=1;<br /> delay(1000);<br /> }<br /> <br /> void i2c_eeprom_write(int end_eeprom, unsigned int end_memoria, byte valor)<br /> {<br /> Wire.beginTransmission(end_eeprom);<br /> Wire.write((int)(end_memoria &gt;&gt; 8));<br /> Wire.write((int)(end_memoria &amp; 0xFF));<br /> Wire.write(valor);<br /> Wire.endTransmission();<br /> }<br /> <br /> char i2c_eeprom_read(int end_eeprom, unsigned int end_memoria)<br /> {<br /> Wire.beginTransmission(end_eeprom);<br /> Wire.write((int)(end_memoria &gt;&gt; 8));<br /> Wire.write((int)(end_memoria &amp; 0xFF));<br /> Wire.endTransmission();<br /> Wire.requestFrom(end_eeprom, 1);<br /> byte dado;<br /> if (Wire.available()){<br /> dado=Wire.read();<br /> }<br /> Wire.endTransmission();<br /> return dado;<br /> }<br /> &lt;/syntaxhighlight&gt;<br /> <br /> [[category: Memory]]</div>

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