2008-12-04 22:02:26 How to set UART baud rate?
leo liu (CHINA)
Hi, I am working with u-boot version 1.1.6 2008 R1.5. Custom board BF527. I defined CONFIG_UART_CONSOLE to 0 as my console by "#define CONFIG_UART_CONSOLE 0". It does not print correctly. I tested the UART0 in visualdsp , I found the UART Bit Rate table on page 488 of ADSP-BF52X_Hardware_Reference_Vol(2) is not correct. UART0 works well when I caculate the divisor of UART0_DLL and UART0_DLH by "divisor = SCLK / 16 / Bit rate" with 1MHz equal to 1024*1024, not 1000*1000.
So it puzzled me that how to change the divisor in u-boot and why does it work well on UART1 as default in bf527-ezkit board?
2008-12-04 23:33:35 Re: How to set UART baud rate?
Mike Frysinger (UNITED STATES)
just like the documentation states, the default baud rate is controlled by CONFIG_BAUDRATE
the actual divisor is not directly controllable