Hi I have simple question about lpc1788:
*. what's the maximum bit rate of LPC1788 SSP?
maybe it's duplicated question but I need to be sure because I wanna buy and design new board and SSP bit rate is critical for me
more than 30Mbps is OK for me.
thanks in advance
The theoretical value differs greatly from the maximum allowed by real-world hardware. Issues with trace length, buffers along the way of the signals etc. might limits signal propogation. I have just finished a simulator project that uses SSP1 of a LPC1768 at 100 MHz but the SSP bus is limited to 12.5 MHz.
A max frequency limit may apply because of external factors like the PCB tracks you mention but you say that you have used a LPC1768 at 100 MHz but the SSP bus is limited to 12.5 MHz.
Why do you say limited, this is the max frequency based on specs for a core operating with 100MHZ, 100MHz/8=12.5MHz for the SSP clock
Alex
In this case it is; I was trying to demonstrate the necessity to consider factors other than the software itself.