If the input boardClock is connected to PIN N5, find (a) LPM_MODULUS and (b) the minimum width of q[..] LPM_WIDTH. (c) What bit of q[..] you will pick as your 2.5-MHz clock?

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Now, if the input clock signal is ADC_CLK_10. Then the input clock signal frequency is 10MHZ.
The clock used is
Then the modulus of counter required to produce 1.25MHZ signal is obtained as, 50MHZ
1. 25MHZ =
10MH2
M
M = 10
= 8
1.25
[a]
LPM_MODULUS = 8
[b]
for 8 modulus counter, the required number of bits is 2³ =8
Hence,
LPM_WIDTH = 3 bits i.e, Q[2:0]
[c]
The MSB of the Q will give 1.25MHZ signal
Hence, the output is Q[2]
Transcribed Image Text:Now, if the input clock signal is ADC_CLK_10. Then the input clock signal frequency is 10MHZ. The clock used is Then the modulus of counter required to produce 1.25MHZ signal is obtained as, 50MHZ 1. 25MHZ = 10MH2 M M = 10 = 8 1.25 [a] LPM_MODULUS = 8 [b] for 8 modulus counter, the required number of bits is 2³ =8 Hence, LPM_WIDTH = 3 bits i.e, Q[2:0] [c] The MSB of the Q will give 1.25MHZ signal Hence, the output is Q[2]
Problem #3:
The DE10-Lite board has three clocks that can be seen in the table below:
Table 3-2 Pin Assignment of Clock Inputs
Signal Name
ADC CLK_10
FPGA Pin No. Description
PIN N5
MAX10_CLK1_50 PIN_P11
MAX10 CLK2_50 PIN_N14
10 MHz clock input for ADC (Bank 3B)
50 MHz clock inputiBank 3B)
50 MHz clock inputiBank 38)
VO Standard
3.3-V LVTTL
3.3-V LVTTL
3.3-V LVTTL
You need a clock of 2.5 MHz for your circuit, and for that reason you are going to use a
Ipm_counter as a frequency divider shown here:
Parameter
PM SVALUE
Value
LPM AVALUE
LIM MOBULUS
LPM DRCTIN
LPM WIDTH
LPM_PORT UPOOWN
LPM_COUNTER
ell
If the input boardClock is connected to PIN_N5, find (a) LPM_MODULUS and (b) the minimum
width of q[..] LPM_WIDTH. (c) What bit of q[..] you will pick as your 2.5-MHz clock?
Transcribed Image Text:Problem #3: The DE10-Lite board has three clocks that can be seen in the table below: Table 3-2 Pin Assignment of Clock Inputs Signal Name ADC CLK_10 FPGA Pin No. Description PIN N5 MAX10_CLK1_50 PIN_P11 MAX10 CLK2_50 PIN_N14 10 MHz clock input for ADC (Bank 3B) 50 MHz clock inputiBank 3B) 50 MHz clock inputiBank 38) VO Standard 3.3-V LVTTL 3.3-V LVTTL 3.3-V LVTTL You need a clock of 2.5 MHz for your circuit, and for that reason you are going to use a Ipm_counter as a frequency divider shown here: Parameter PM SVALUE Value LPM AVALUE LIM MOBULUS LPM DRCTIN LPM WIDTH LPM_PORT UPOOWN LPM_COUNTER ell If the input boardClock is connected to PIN_N5, find (a) LPM_MODULUS and (b) the minimum width of q[..] LPM_WIDTH. (c) What bit of q[..] you will pick as your 2.5-MHz clock?
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