my board runs with an external resonator of 29.4912 mhz. this frequency is is perfect for deviding uart-clocks for the standard baudrates (9600,19200…). for my application, i would need a baudrate of 250 kBaud. the uart-clock for this baudrate can not be devided exactly from the system clock.
my idea was to use the external pin gpio_a as clock - source for the uart. my problem is, i can not find how to configurate this pin as uart-clock in the bsp. the only thing a found was the define “BSP_GPIO_MUX_SERIAL_EXTERNAL_RX_CLOCK_B” in the manual, but i have no idea how to assign the right input pin with this define.
any ideas ? another solution for my problem ?
thanks for help,