Hey all,
i will measure a very short dutycycle with an standard 8051 (8252 from Atmel).
But the maximum counter frequency is typical 1 MHz or on better chips up to 3 MHz.
I need 100 MHz counter frequency ?!?
I will cascade the 16 bit counter with an external highspeed counter with 12 bits. The biggest problem is no logic chip works with this frequency.
I thing the only way to solve this problem is, to use an PLD or FPGA with enough macrocells.
Or any other suggestions ?
thanks,
Sascha