Hello Daniel,
Hello Reinhard,
Which USART is the output coming from instead? Is it really console output or maybe some other, independent pulses?
I don't know, to which USART the output goes. I guess you assume, my "GPIO debugging" was to meassure the pulses on the USART pins. But no, my GPIO debugging was as follows: -set gpio pin with led attached -send characters by puts() (wherever it goes) ;-) -reset gpio pin -measure time between high- and low- rising edge on gpio pin -calculate baudrate
(on DBGU pin, there is no pulse at all past starting U-Boot)
Can you verify that the value for ATMEL_BASE_DBGU in at91sam9263.h is correct?
Yes, according to datasheet, Debug Unit Control Register (DBGU_CR) is located at 0xFFFFEE00. And in at91sam9263.h is defined: #define ATMEL_BASE_DBGU 0xffffee00
(I could have made an error there while reworking)
I think its now safe to assume that the DBGU UART is really used, but maybe the GPIO pins are not correctly assigned to it. Try to look in the at91sam9263_devices.c area, seriald_init().. Is it called, and does it do the "right" thing?
It must be something rather trivial...
Best Regards, Reinhard