Why is USB so much faster than normal serial communication?

Hello, USB and say, RS-232/485 are all serial mediums to deliver data. What makes USB so much faster? Why can't the same data transfers rate be achieved with say, RS-232? Sorry for asking a non-Keil...
Why is USB so much faster than normal serial communication?

Hello, USB and say, RS-232/485 are all serial mediums to deliver data. What makes USB so much faster? Why can't the same data transfers rate be achieved with say, RS-232? Sorry for asking a non-Keil...
FIQ & IRQ

Hi all, can anybody tell me, what is the actual difference between FIQ & IRQ ? Means how FIQ have fast execution time than IRQ ? Is there any hardware changes for FIQ , that increases its execution...
IRQ & FIQ

Hello, I'm Juan Manuel and I'm trying to use the FIQ in the ADUC7026, but I've got a problem using it. First, I configured the device (external IRQ0 on the evaluation board AD), then enabled the IRQ...
FIQ & IRQ

Hi all, can anybody tell me, what is the actual difference between FIQ & IRQ ? Means how FIQ have fast execution time than IRQ ? Is there any hardware changes for FIQ , that increases its execution...