Part Number: AM3358
Tool/software: Linux
We have a Beaglebone Black async serial application using ttyO0, ttyO1, ttyO2. It works fine for the 8 data bit format (parity or no parity, 1 stop). However, it does not work for 7 data bits (parity or not, 1 stop). Further tests using Buildroot buildroot-2016.11 and Debian 9.5 2018-08-30 with minicom has confirmed there is a problem with the 7-bit data format.
From omap-serial.c & serial-omap.h, function serial_omap_set_termios() seems properly setup for:
case CS7:
cval = UART_LCR_WLEN7; //UART_LCR_WLEN7= 0x02 Wordlength: 7 bits
I fail to recognize where the potential problem lies. Would greatly appreciate some guidance on this.
Thank you,
