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Updated dev hardware quality control (markdown)

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rusefillc 2021-07-09 23:19:31 -04:00
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dev-hardware-quality-control.md
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@ -12,6 +12,23 @@ For first round the proposal is to test functional blocks as separate small PCBs
We are building Stim using NUCLEO-F429ZI due to chip shortage.
# Overview
We have ECU, PC and Stim device interconnected.
PC runs overall control software.
PC uses ST-Link to flash rusEFI ECU with special QC firmware if needed.
PC has USB CDC with Stim.
PC _probably_ has USB CDC with ECU. Funny idea: CAN bus between ECU and Stim?
Problem: sometimes we do not want to feed ECU via ST-Link. Solution: Stim has a switch(es) to break +5v line(s) between PC and ECU.
![x](Hardware/hw-qc-overview.jpg)
See [Tag-Connect-TC2030](Tag-Connect-TC2030)