Wiki » History » Revision 16
Revision 15 (Frédéric Blanc, 2024-11-07 14:22) → Revision 16/40 (Frédéric Blanc, 2024-11-08 10:47)
h1. Wiki
{{toc}}
h2. USB <-> I2C
!clipboard-202411051457-ujwet.png!
Passerelle USB-I2C SiLabs CP2112
h3. Commande Linux
i2c-tools
<pre><code class="shell">
sudo apt install i2c-tools
</code></pre>
<pre><code class="shell">
i2cdetect -l
</code></pre>
!clipboard-202411051520-zo9bt.png!
<pre><code class="shell">
i2cdetect -r -y N
</code></pre>
N numero I2C ici 5
!clipboard-202411051525-mfhc4.png!
detection d'une puce I2C PCF8563 @ 0x51
https://www.acmesystems.it/i2c
https://www.youtube.com/watch?v=QwlqOTDAPfk
h2. Composants
h3. PCF8563 Real-time clock/calendar
!clipboard-202411071057-aw2q3.png!
VDD = 1.8 V to 5.5 V
400-kHz Fast I2C bus
!clipboard-202411071057-aw2q3.png!
*@I2C 0x51*
h3. TCA9535 I/O Expander 16-Bit
Low-Voltage 16-Bit I2C and SMBus Low-Power I/O Expander with Interrupt Output and Configuration Registers,
!clipboard-202411071059-exmd3.png!
VDD 1.65 V to 5 V
400-kHz Registers,400-kHz Fast I2C bus.
!clipboard-202411071059-exmd3.png!
*@I2C*
!clipboard-202411071120-iho0j.png!
h3. ADS1115 Quad ADCs
16-bit, 860-SPS, 4-channel, delta-sigma ADC with PGA, oscillator, VREF, comparator and I2C
!clipboard-202411071414-qcbtd.png!
VDD 2.0 V to 5.5 V
*@I2C*
|0x48|0b1001000|GND|
|0x49|0b1001001|VDD|
|0x48|0b1001010|SDA|
|0x49|0b1001011|SCL|
h3. LTC2635 Quad DACs
Quad 12-/10-/8-Bit I2C VOUT
DACs with 10ppm/°C Reference
!clipboard-202411081042-w1dol.png!
VDD 2.7V to 5.5V
*@I2C*
|0x10|0b0010000|GND|
|0x11|0b0010001|NC|
|0x12|0b0010010|VDD|