safiqul_03
Newbie level 4
Hi,
I am trying to measure the RC time constant (exponential decay time) by FPGA. I have already done it by micro-controller with two comparators. But now, I want to do it by FPGA and want to use VHDL.
For that, I have choosed Flash ADC (MAX105) and FPGA - ACTEL ProASIC3E (A3PE1500). But, I have no idea how to interface between Flash ADC and FPGA. I need also the counter value that can count the time for each sample.
The RC time constant only 100 us.
Please help me to find out this! Thank you!
View attachment MAX105 [6 bit Flash ADC].pdf View attachment A3PE1500 [FPGA].pdf
I am trying to measure the RC time constant (exponential decay time) by FPGA. I have already done it by micro-controller with two comparators. But now, I want to do it by FPGA and want to use VHDL.
For that, I have choosed Flash ADC (MAX105) and FPGA - ACTEL ProASIC3E (A3PE1500). But, I have no idea how to interface between Flash ADC and FPGA. I need also the counter value that can count the time for each sample.
The RC time constant only 100 us.
Please help me to find out this! Thank you!
View attachment MAX105 [6 bit Flash ADC].pdf View attachment A3PE1500 [FPGA].pdf