LP55231: Led pattern

Please annotate on each program code.

I really suggest you to read the LP55231EVM user's guide carefully:

https://www.ti.com/lit/pdf/snvu214?keyMatch=LP55231EVM

I think you can find all results and example code for your questions before and now on.

Hi,

Thanks for the replay.

I am following the user guide but not get the proper results.

Regards,
D J

Please annotate on each program code.

As per the again describing entire requirements. Please provide a quick revert.

//pulsing pattern
0x0084 // led mapping
0x9C00 //engine 1
0x40FF // LED DRIVER INSTRUCTIONS (user guide page no. 19)
0x7e00 // LED DRIVER INSTRUCTIONS wait (user guide page no. 19)
0x4000 // LED DRIVER INSTRUCTIONS (user guide page no. 19)
0x7E00 // LED DRIVER INSTRUCTIONS wait (user guide page no. 19)
0xA101 // loop 1

//breathing pattern
0x0041 // led mapping
0x9C00 // engine 2 & starting Address
0x9C88 // End address
0x18FF // LED DRIVER INSTRUCTIONS ramp up (user guide page no. 19)
0x19FF // LED DRIVER INSTRUCTIONS ramp down (user guide page no. 19)
0xA202 // loop 2

--> Both patterns are loaded successfully.

--> expected output :-
--> Pulsing pattern Output expected:-
- select 0x0084 led
- set starting address
- set end address
- ramp up
- ramp down
- set loop

--> Breathing pattern Output expected:-
- select 0x0041 led
- set starting address
- led high
- delay
- led low
- set loop

---> Actual result we are getting right now:-
-->Pulsing pattern output
- select 0x0084 led
- set starting address
- led high
- delay (wait)
- led low
- delay (wait)
- set loop

-->Breathing pattern output:-
- set 0x0084 led                                  ---> // Led not able set 0x0041 and its taking 0x0084.
- set starting address
- end starting address
- ramp up
- ramp down
- set loop

Now we need these solutions. In a breathing pattern, we are not able to set 0x0041.

Please check the map start and end address.

checked with different map start and end addresses. But result same

The start address should be as same as the LED select address

I suggest you to add a mux_clr(9D00) to clear your map before you select new LED map

You can also set two of your maps on the headmost of your program, and select the map you need on 2 programs separately by using mux_map_addr command.

And all these methods have examples on LP5231EVM user's guide, you can see them from page 23

Hi
Thanks for your suggestions.
I tried this way. The led pattern array is given below. 

//pulsing pattern
0x0003, // led mapping
0x9C00, //engine 1
0x400F, // LED DRIVER INSTRUCTIONS (user guide page no. 19)
0x7e00, // LED DRIVER INSTRUCTIONS wait (user guide page no. 19)
0x4000, // LED DRIVER INSTRUCTIONS (user guide page no. 19)
0x7E00, // LED DRIVER INSTRUCTIONS wait (user guide page no. 19)
0xA001, // loop 1
0xC000,

// breathing pattern
0x9d00,
0x0084, // led mapping
0x9C02, // engine 2 & starting Address
0x9C85, // End address
0x18F0, // LED DRIVER INSTRUCTIONS ramp up (user guide page no. 19)
0x19F0, // LED DRIVER INSTRUCTIONS ramp down (user guide page no. 19)
0xA001,// loop 2

But the result is the same.

Try this:

0x0003 //map1

0x0084 //map2

segment program1:(ENGINE1)

    mux_map_start map1_addr

loop1:

    400F

    7E00

    4000

    7E00

    branch0, loop1/ENDLESS LOOP

    rst

segment program2:(ENGINE 2)

    mux_map_start map2_addr

loop2:

    18F0

    19F0

    branch0, loop2/ENDLESS LOOP

I notice that the mux_map_start adress is 02, you should check your engine2's start address and it can be change or read by 4D ENG2 PROG STARTADDR register. The default value is 0x10, so the mux_map_start adress should be 0x11.

Hi,

Based on your suggestions, conclude below values. 

0x0003,
0x0084,
0x9c00,
0x400f,
0x7e00,
0x4000,
0x7e00,
0xa001,
0x0000,
0x9d00,
0x18f0,
0x19f0,
0xa002,

I tried this but not working.

Did you check your ENGINE2 start address? that will decide mux_map_start  address.

How to check engine 2 start address?

The default value of engine 2 start address is 0x10, if you will map the leds you want to use on the start of engine 2, you need to check mux_map_start  address.