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I just would like to celebrate this sentence for one second: > If It Can Be Done with Code, Don’t Do It with Hardware We all complain about why my washing mac

I just would like to celebrate this sentence for one second: > If It Can Be Done with Code, Don’t Do It with Hardware We all complain about why my washing machine needs a connection to Wifi and why my brakes don’t work while I’m tuning the heating on the display (joking to emphasize the craziness of plugging the infotainment on the CAN bus), but our hardware is now so reliable that it’s more reliable to do something in software and reuse existing HW bricks, than to design a specific circuit for a dedicated function.

mips_r4300i 3y ago
It's always better to have as much functionality mutable via firmware update. Even if it's a day 1 factory update and it never gets updated again. You have an extra couple months to test and harden the design and prevent showstoppers. However, anything safety critical or that could potentially hurt the device always needs hardware dedicated to it. As an example, using a couple I2C-adjusted buck regulators. Very convenient, until your i2c gets wedged or you get bit flips due to noise on the bus or a i2ç peripheral glitch with some other device on the bus. Now your 1.2v rail has 4 volts on it. You can't fix that with software.