UPC EETAC Bachelor's Degree in Telecommunications Systems and in Network Engineering EEL

 

BCD counter modulo 60 (seconds or minutes counter)

P7

1. Specifications

Our goal is to design an minute or seconds counter to be used in a real-time clock device. Fig. 1 represents the symbol and function table. It is for counting using BCD code from 00 up to 59.

Symbol

Fig 1. Symbol for the proposed entity.

 

2. Planning

Let us use plan C2. Inventing the Counter_BCD_mod60 requires chaining Counter_mod16 components using truncation techniques in the way discussed at L7.3.

Counter_BCD_mod60
Counter_BCD_mod_60_plan
Equations

Fig 3. Proposed internal architecture for Counter_BCD_mod60.

Project location:

C:\CSD\P7\Counter_BCD_mod60\(files)  

 

3. Development

Example file translation of schematics above in Fig. 3: Counter_BCD_mod60.vhd, Quad_MUX_2.vhd, and copy the Counter_mod16.vhd from its plan Y tutorial Counter_mod16.

 

4. Test (functional)