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Frédéric Blanc, 2024-11-08 13:35

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h1. Wiki
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{{toc}}
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h2. USB <-> I2C
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!clipboard-202411051457-ujwet.png!
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Passerelle USB-I2C SiLabs CP2112
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h3. Commande Linux
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i2c-tools
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<pre><code class="shell">
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sudo apt install i2c-tools
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</code></pre>
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<pre><code class="shell">
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i2cdetect -l
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</code></pre>
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!clipboard-202411051520-zo9bt.png!
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<pre><code class="shell">
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i2cdetect -r -y N
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</code></pre>
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N numero I2C ici 5
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!clipboard-202411051525-mfhc4.png!
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detection d'une puce I2C PCF8563 @ 0x51
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https://www.acmesystems.it/i2c
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https://www.youtube.com/watch?v=QwlqOTDAPfk
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h2. Composants
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h3. PCF8563 Real-time clock/calendar
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!clipboard-202411071057-aw2q3.png!
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VDD = 1.8 V to 5.5 V
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400-kHz Fast I2C bus
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*@I2C 0x51*
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document#245
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h3. TCA9535 I/O Expander 16-Bit
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Low-Voltage 16-Bit I2C and SMBus Low-Power I/O Expander with Interrupt Output and Configuration Registers,
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!clipboard-202411071059-exmd3.png!
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VDD 1.65 V to 5 V
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400-kHz Fast I2C bus.
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*@I2C*
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!clipboard-202411071120-iho0j.png!
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document#243
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h3. ADS1115 Quad ADCs
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16-bit, 860-SPS, 4-channel, delta-sigma ADC with PGA, oscillator, VREF, comparator and I2C
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!clipboard-202411071414-qcbtd.png!
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VDD 2.0 V to 5.5 V
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*@I2C*
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|0x48|0b1001000|GND|
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|0x49|0b1001001|VDD|
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|0x48|0b1001010|SDA|
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|0x49|0b1001011|SCL|
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document#242
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h3. LTC2635 Quad DACs
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Quad 12-/10-/8-Bit I2C VOUT
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DACs with 10ppm/°C Reference
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!clipboard-202411081042-w1dol.png!
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VDD 2.7V to 5.5V
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*@I2C*
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|0x10|0b0010000|GND|
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|0x11|0b0010001|NC|
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|0x12|0b0010010|VDD|
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document#244
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h3. IP5306 Battery Management System
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Fully-Integrated Power Bank System-On-Chip with 2.1A charger, 2.4A discharger
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!clipboard-202411081112-fltgj.png!
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*@I2C 0x75*
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document#246
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h3. 24LC512 EEPROM 512Kbit
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!clipboard-202411081325-eulk2.png!
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VDD 2.5-5.5V
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400-kHz Fast I2C bus
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*@I2C*
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|||A2|A1|A0|
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|0x50|0b1010000|GND|GND|GND|
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|0x51|0b1010001|GND|GND|VCC|
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|0x52|0b1010010|GND|VCC|GND|
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|0x53|0b1010000|GND|VCC|VCC|
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|0x54|0b1010100|VCC|GND|GND|
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|0x55|0b1010101|VCC|GND|VCC|
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|0x54|0b1010110|VCC|VCC|GND|
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|0x55|0b1010111|VCC|VCC|VCC|
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document#247