[En-Nut-Discussion] Connecting Ethernut 1.3 with ATMega32 via UART

[Hanrun Hu]

Thank you for your answer and tips.


A look at the datasheets of ATmega32 and ATmega128, which is actually the microcontroller used in Ethernut 1.3, tells me that both operates at a voltage of 4.5 - 5-5V. So, under these circumstances, can I directly connect the RxD of one chip to the TxD of the other chip and vice versa?

And one more question:
ATmega128 has two UARTs: PE0 + PE1, and PD2 + PD3.
Are PE0 + PE1 uart0? Is uart0 the UART, which is already used by Ethernut for the RS232-Port for the communication with the PC? And if I want to use uart1, so PD2 + PD3, how do I tell this NutRegisterDevice()?


Best regards, Hanrun


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