Generate tick from XTHAL_GET_CCOUNT.

[TibiToz]

Code: [Select all] [Expand/Collapse]

1. #define TICK_COUNT_1KHZ  (CPU_FREQ / TICK_FREQ)
2. void Init_Xthal_Count ( void )
3. {
4.     xthal_val_i =  XTHAL_GET_CCOUNT();
5. }
6.  
7. void Get_Tick_From_Xthal ( void )
8. {
9.    
10.     if( (XTHAL_GET_CCOUNT() - xthal_val_i) > TICK_COUNT_1KHZ )
11.     {
12.         xthal_val_i =  XTHAL_GET_CCOUNT();
13.         Tick1ms_u8 = 1U;
14.     }
15.     else
16.     {
17.         Tick1ms_u8 = 0U;
18.     }
19.    
20. }
21.  
22. void CORE1_Start ( void *pvParameters )
23. {
24.     Init_Xthal_Count();
25.     while(1)
26.     {
27.         Get_Tick_From_Xthal();
28.         Tick_Check();
29.     }
30. }

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I'm trying to use this idea for core usage : viewtopic.php?f=2&t=10006&start=20

I'm creating a Freertos task CORE1_Start() on core1, in this task, i'm trying to generate a 1ms tick from the XTHAL_GET_CCOUNT(), i dont want to use the esp API or freertos inside my CORE1_Start().

The Get_Tick_From_Xthal() is running in a while(1) and going in a function to check flag. Using the code above is working fine until the XTHAL_GET_CCOUNT() value goes negative. The idea to solve the problem was to use XTHAL_SET_COUNT to reset the xthal_ccount value when the tick is reach. It is not working. I assume, the XTHAL_COUNT register in used by the freertos or something else on core0 and we just cant modify this value.

After that i tried to use xthal_set_ccompare() and xthal_get_ccompare() like this :

Code: [Select all] [Expand/Collapse]

1. void Init_Xthal_Count ( void )
2. {
3.    
4.     xthal_set_ccompare( ID_REGISTER ,  TICK_COUNT_1KHZ );
5.  
6.    
7. }
8. void Get_Tick_From_Xthal ( void )
9. {
10.    
11.     if( xthal_get_ccompare(ID_REGISTER) )
12.     {
13.         Tick1ms_u8 = 1U;
14.     }
15.     else
16.     {
17.         Tick1ms_u8 = 0U;
18.     }
19.    
20. }

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But the value seems to never be reached, Am i using those functions right ? Is there a solution for my first idea ? Thank you for your replies

Tibi