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USART2 and UART4 not working in AT91SAM9G20-EK Rev.C

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thenral007

Post subject: USART2 and UART4 not working in AT91SAM9G20-EK Rev.C

Posted: Tue Aug 02, 2011 9:44 am

Joined: Wed Apr 27, 2011 6:31 am
Posts: 25

Hi all,
I wanted to make working of all usarts in AT91SAM9G20-EK. So I have registered all usart devices in "arch/arm/mach-at/board-sam9g20ek.c" file in linux,then compiled the Kernel.

But the following usarts are not responding(TXD pins) while probing through DSO.

1. USART2
2. UART4

Please guide me to fix the problem.

Thenral.

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