Iam using TWR-K70 board for interfacing LCD with SSD 1963 controller using Flex bus.
I am trying to measure Flex-bus clock (PTC3 - ALT 5 ) from the TWR module.But it is always showing 20 MHz
even when i change the flex bus frequency using SIM-CLKDIV1 Register.
I tried variying the clock from 40 MHz to 10 MHz but i am getting the same output (20 MHz).
Can any one help me with how to measure the Flex bus Clock