Skip to main content

Optimization techniques

To optimize the memory size of program(for microcontrollers)

    1. If you are working with 8 bit of data or no. between 0 to 255 then use char datatype.

    Example:
    int j = 0;
    for ( j =  0; j<=100 ; j++);

    Here instead of int use char. It will help u in optimizing program by a bunch of byte.



    2. Use just if rather than if-else or switch or array. It saves a lot of space.

    3. Design your own algorithm for any data (in which there are options to be selected) which can be obtainded by just subtracting or adding a no. or combination rather than using switch or if-else statements.

   4. Always try to design a nice logic, because you have brain.


more to come... till then enjoy programming..

Comments

Popular posts from this blog

RTC on FPGA with manual set synthesizeble VHDL code.

Hey there, cheers to VHDL. I successfully added manual set feature in my previous RTC project. I am not going to copy whole code here. I am just adding the links of .vhd files. I also added the pre-compiled .sof file only for DE1 boards. There is a very small bug that while clicking the set button to enable min and hr set, it increments the hr or min value unintentionally. Else everything is working great.

(Input freq 24MHz., top-level entity DigiClock)

VHDL code for Clock Divider

This is a clock divider code, just set the max-count value as per your requirenment.

For ex. If I want 1Hz freq. set the max count to i/p freq value viz.
1sec = 1Hz
Then, to get time period of 1sec i.e. 1 Hz frequency set max-count to 240000 as shown below:

1sec  =  24000000  -- for i/p frequency of 24 MHz.

To get your desired frequency just calculate the maxcount with the formula given below:

max_count = 24000000 * (1/your required frequency)


CODE:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48libraryIEEE; useIEEE.STD_LOGIC_1164.ALL; useIEEE.numeric_std.all; entityclk_divisPort ( Clk :instd_logic; rst :instd_logic; op :outstd_logic ); endclk_div; architecturebehavioralofclk_divisconstant max_count :natural:=24000000; -- I used 24MHz clockbeginprocess(Clk,rst) variable count :naturalrange0to max_count; beginif rst ='0'…