I am using the BBB and setting up UARTS one the I/O pins.
Example UART4, P9 pins 11 and 13.
I am set for 9600 baud
Im looking at teh bit patter on an oscilloscope and notice the serial speed comes out of the port at a rate slower than 9600 baud (about 7-8% slower)
That means that rate is outside of the acceptable speed tolerance of about 5% for the serial 9600 standard.
I cannot properly communicate with serial devices that use 9600 baud.
Any idea on the cause of this and if there is some sort of calibration that can be done to improve the accuracy of the UART.
I am using Debian operating system
To run the tests I am using minicom
Ken