Hi all,
In MCBSTR9 board main ossilator frequency is 25Mhz and we can rise this frequency up to 96Mhz by PLL in STR9. My question is this, is there any upper frequency limit for UART to handle the communication? I can send and recv data at frequency 48Mhz, but I could non be able to send and recv at 64Mhz.
And I want to ask an another question. In RTX_Config.c file, there is an option about stdin and stdout(use Com1 and use RTX_agent), what is the difference between these two?
Thank you.
That is really a question for the support at ST (if it is not mentioned in the user guide already). The ST support team is quite good.
I believe that there a clock restrictions for peripherals in general. Read carefully the user manual, since you might need to select a lower frequency for the peripheral clock.