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Merge pull request #311 from mi-hol/master 

fixes markdown table syntax and heading hierarchy
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mi-hol 2022-12-27 17:12:13 +01:00 committed by GitHub
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29
Plug-In-Board-Process.md
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@ -1,22 +1,29 @@
# Plug In Board Process
# Step 1 Research
## Step 1 Research
have wiring diagrams in random loose format: pictures, scans, PDF, text.
# Step 2 Data Entry
have ECU connector pinout in google spreadsheet form, with explicit function of each pin, often with analysis of multiple vehicles with similar pinout. [Good example](https://docs.google.com/spreadsheets/d/1H0cZPAJFbpprgSu1Y8BiAYzXbqddvIn-Hhod4QCVQwk)
## Step 2 Data Entry
# Step 3 Breakout
Break board for that connector to reduce risks, also a product by itself!
have ECU connector pin-out in google spreadsheet form, with explicit function of each pin, often with analysis of multiple vehicles with similar pin-out. [Good example](https://docs.google.com/spreadsheets/d/1H0cZPAJFbpprgSu1Y8BiAYzXbqddvIn-Hhod4QCVQwk)
# Step 4 Start of KiCAD
Pinout data entry into KiCAD
## Step 3 Breakout
Breakout board for that connector to reduce risks, also a product by itself!
## Step 4 Start of KiCAD
Pin-out data entry into KiCAD
## Step 5 Adapter
# Step 5 Adapter
Proteus or else adapter for specific vehicle, based on steps 2, 3 and 4. Because cheaper fabrication and less labor intense.
# Step 6 Plug In Hellen
Full plug in board like Hellen if demand exists. See https://github.com/rusefi/rusefi/wiki/Standalone-on-Demand
## Step 6 Plug In Hellen
Full plug in board like Hellen if demand exists. See <https://github.com/rusefi/rusefi/wiki/Standalone-on-Demand>
## Step 7 Hellen real vehicle tests
# Step 7 Hellen real vehicle tests
We are getting good at these Hellen boards but a board is not done until tested on a real vehicle. A master tech skill set is needed to turn a Hellen into a proven board!

12
STM32F4Discovery-Repair.md
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@ -89,7 +89,7 @@ Replace the LED or ignore it. This is only an indicator that you have 3V.
![STM42F4 Discovery](Images/2014-08-21T15-20-24.645Z-stm32f4_discovery.jpg)
![STM42F4 Discovery Layout](Images/layout.png)
![STM42F4 Discovery Layout](Images/Layout.png)
[stm32f4discovery home page](http://www.st.com/web/catalog/tools/FM116/SC959/SS1532/PF252419)
@ -101,18 +101,20 @@ Replace the LED or ignore it. This is only an indicator that you have 3V.
Here are several measurements to function as a point of reference. These were taken with a known good board.
With the USB powering the board via CN1 and JP1 removed,
* With the USB powering the board via CN1 and JP1 removed,
Voltage referenced to GND is
* Voltage referenced to GND is
Voltage measurements
||Away from audio jack|closer to audio jack
--- | ----- | ------
|D1|4.76V|5.08V
|D3|3.298V|2.968V
|JP1|2.968V|.3mV
With no USB and no other connections to the discovery,
* With no USB and no other connections to the discovery,
* the measured ohms (auto scale) to GND with JP1 removed, The SWD side of JP1 measured at 7.34k ohms, and the audio jack side of JP 1 measured at 4.98k ohms.
the measured ohms (auto scale) to GND with JP1 removed, The SWD side of JP1 measured at 7.34k ohms, and the audio jack side of JP 1 measured at 4.98k ohms.
## common parts