1-Wire interface using half duplex UART

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cross mob
Not applicable
I need to interface with a 1-Wire EEPROM. I wanted to know if it was possible to use the single wire half duplex UART in the XMC series?
Or do I have to use the full duplex UART and use two FETs to wire the TX/RX together on the 1-wire bus as documented by Maxim Integrated?
I don't want to waste my time trying the half duplex UART if it can't work for some reason or another.
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3 Replies
chismo
Employee
Employee
First like received
Hello,

Yes, single wire half duplex can be realized with a USIC channel of the XMC device.
There are available pins with both RXD (DX0n) and TXD (DOUT0) functionalities, one of which can be used for this purpose.

Regards,
Min Wei
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User16559
Level 1
Level 1
Can you be more specific? Do you have a example implementation or something else ?

Best Regards,
Marco
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jferreira
Employee
Employee
10 sign-ins 5 sign-ins First like received
Hi,

You can easily configure the UART or UART_CONFIG APP in DAVE4 to half duplex mode.

Regards,
Jesus
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