forked from M-Labs/thermostat
atse
ae3d8b51d4
Thermostats v2.2 and below have a noisy and offset feedback current `tec_i` caused by missing hardware on 2 MAX1968 TEC driver pins: 1. A missing RC filter on the ITEC pin that would have isolated CPU sampling pulses from the signal; and 2. Some missing buffering on the VREF pin that would have avoided loading the VREF signal, preventing voltage drops from the nominal 1.5V. Since the resulting signal `tec_i` derived from these two signals can have an error of around +/- 100mA, and readback may affect the stability performance of the Thermostat, disable current readback entirely on affected hardware revisions for now. See https://github.com/sinara-hw/Thermostat/issues/117 and https://github.com/sinara-hw/Thermostat/issues/120. On hardware revisions v3.x and above, this would be fixed. |
||
|---|---|---|
| .. | ||
| ad7172 | ||
| ad5680.rs | ||
| channel_state.rs | ||
| channel.rs | ||
| channels.rs | ||
| command_handler.rs | ||
| command_parser.rs | ||
| config.rs | ||
| dfu.rs | ||
| fan_ctrl.rs | ||
| flash_store.rs | ||
| hw_rev.rs | ||
| init_log.rs | ||
| leds.rs | ||
| main.rs | ||
| net.rs | ||
| pid.rs | ||
| pins.rs | ||
| server.rs | ||
| session.rs | ||
| steinhart_hart.rs | ||
| timer.rs | ||
| usb.rs | ||