Forum Discussion
Altera_Forum
Honored Contributor
16 years agoHI,
thank you for your fast reply and effort. Got the inputattach app. I enabled the "Serial port line discipline" option in the kernel config. As well as the "Event interface" Altera UART Support is enabled and is set to 9600 default Baud rate, as it's the default rate of the touch screen controller. The app "setserial" show the following information after booting uClinux: ... ttyJ0 at MMIO 0x8001410 (irq = 7) is a Altera JTAG UART console [ttyJ0] enabled ttyS0 at MMIO 0x8001340 (irq = 6) is a Altera UART ... /> setserial -a /dev/ttyS0 /dev/ttyS0, Line 0, UART: undefined, Port: 0x0000, IRQ: 6 Baud_base: 3125000, close_delay: 50, divisor: 0 closing_wait: 3000 Flags: spd_normal Seems the uart and port definition is missed and Baud rate is not the default one. I was able to set the Baud rate to 9600 with setserial but was not able to change uart. How do I check whether the board talks with the touch screen? (I'm new to the whole rs232 environment.) The display still does not react. Appreciate, J.Z.