Hi everyone,
I am trying to calculate speed electronically by dividing distance(d) "always constant" by time(t) - variable, the output should be a 3-digit number with accuracy +/- 5%. The input parameters: time is a single BCD digit (4-bit), and distance is a 3-digit BCD number (12-bits).
I am not allowed to use any kind of PLD's, however, a hint was given to us; a counter should be used to count the number of times that (t) can be subtracted from (d) while the output is positive. In other words, I just need to know how to subtract t from d (and put it in a loop).
Please let me know if you have any ideas on how to approach this problem
Thank you
I am trying to calculate speed electronically by dividing distance(d) "always constant" by time(t) - variable, the output should be a 3-digit number with accuracy +/- 5%. The input parameters: time is a single BCD digit (4-bit), and distance is a 3-digit BCD number (12-bits).
I am not allowed to use any kind of PLD's, however, a hint was given to us; a counter should be used to count the number of times that (t) can be subtracted from (d) while the output is positive. In other words, I just need to know how to subtract t from d (and put it in a loop).
Please let me know if you have any ideas on how to approach this problem
Thank you
