jeka/MyOwnEtherCATDevice
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Hakan Bastedt
2025-02-12 16:34:25 +01:00
parent 8d31928d7a
commit 3e8a4a7ec3
1 changed files with 6 additions and 2 deletions
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Build.md
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@@ -14,7 +14,7 @@ RJ45 connectors must include "magnetics" and be configured in this way\
![RJ45 Symbol](Utils/Pictures/RJ45-magnetics.png)\
I have used PulseJack JN0011D01BNL (and most likely a chinese knockoff) and it works fine, but any jack that meets the diagram above will work.
The EtherCAT ICs are from aliexpress. There are quite a few sellers that has the LAN9252i/PT and the Ax58100 (LAN9252/PT and LAN9252V/PT are also possible, temperature range differs). Afaik, there is only one variant of the Ax58100 - AX58100LT. The LAN9252 is generally avialable, the Ax58100 is more of a challenge but check aliexpress.
The EtherCAT ICs are from aliexpress. There are quite a few sellers that has the LAN9252i/PT and the Ax58100 (LAN9252/PT and LAN9252V/PT are also possible, temperature range differs). Afaik, there is only one variant of the Ax58100 - AX58100LT. The LAN9252 is generally available, the Ax58100 is more of a challenge but check aliexpress.
The pcb needs to be ordered. Consider using a solder stencil - but hey it's up to you. I have bought pcbs from some chinese factories and from Aisler, Germany. The Aisler pcb is the nicest and came with excellent solder stencil. At a bit higher cost, nothing dramatic though. If you are hunting pennies then go to one of the chinese ones, maybe check prices at https://pcbshopper.com.
@@ -22,7 +22,7 @@ The pcb needs to be ordered. Consider using a solder stencil - but hey it's up t
You need to fill the EEPROM with valid contents before putting it on the pcb. It is actually a must, the EtherCAT IC will not start with an empty EEPROM, or with a non-valid content. It doesn't have to be for a real EtherCAT slave, because the first thing you will do when the card works is to upload the correct contents using TwinCAT. Any valid EEPROM content.
There is a small Arduino program [Link here](Utils/EEPROM_generator/) that helps to fill the empty EEPROM. Follow the link.
There is a small Arduino program [Link here](Utils/EEPROM_store_valid/) that helps to fill the empty EEPROM. Follow the link.
## Populating the pcb
@@ -34,6 +34,10 @@ I have put the pcb in the soldering oven. Hand soldering should work, although t
## Powering up
Need:\
STLINK/V2\
Serial port - USB
Connect the STLINK/V2 unit and the serial port. The serial port will provide 5V, you don't need to see the serial output (there isn't any).
Ax58100\