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> something close to I²C should be feasible. That'd be https://en.wikipedia.org/wiki/System_Management_Bus https://en.wikipedia.org/wiki/System_Management_Bus
by timschmidt 2y ago
> something close to I²C should be feasible.
That'd be https://en.wikipedia.org/wiki/System_Management_Bus https://en.wikipedia.org/wiki/System_Management_Bus
- kragen 2y agoThat's just I²C with some features disabled. It doesn't add any of the things I²C is lacking. Well, okay, I guess SMBus ARP kind of does. Thanks!
- timschmidt 2y agoI never thought about making hot pluggable SMBus peripherals. It's an interesting idea. Many motherboards even have headers broken out, and of course operating systems already have drivers for many SMBus peripheral types. LoFi USB.
- NavinF 2y agoWe have hot pluggable I2C at home. Every HDMI port (and pretty much every DP port with a passive adapter) has I2C on the DDC pins. The port also provides 5V 50mA so your MCU doesn't need external power. Example: https://www.reddit.com/r/raspberry_pi/comments/ws1ale/i2c_on_the_hdmi_port_raspberry_pi_4/ https://www.reddit.com/r/raspberry_pi/comments/ws1ale/i2c_on...