Commenting out CONFIG_KERNEL_NONE = 1 might be switching off the interrupts.

[nyh-workshop]

I'm working on a small W806 app (https://github.com/nyh-workshop/w806-i2s) and trying to put a FreeRTOS inside.

From the readme, I need to comment out the "CONFIG_KERNEL_NONE = 1" or else it won't work.

However when I comment out this setting, most of the interrupts are not being called anymore, even the DMA ones.

There is someone also discussing about this here: http://ask.winnermicro.com/question/269.html. There is a possible answer at the bottom of that thread - however my Mandarin is limited and the translation seems to be not working good today.

It could mean to remove the macros, but I'm not sure which one to remove on these files.

[IOsetting]

I tried the changes in the discussion,

1. Comment out CONFIG_KERNEL_NONE = 1 in csi_config.h
2. Edit function SystemInit() in system.c, change it to

void SystemInit(void)
{
    __set_VBR((uint32_t) & (irq_vectors));
    __set_CHR(__get_CHR() | CHR_IAE_Msk);

    /* Clear active and pending IRQ */
    VIC->IABR[0] = 0x0;
    VIC->ICPR[0] = 0xFFFFFFFF;

    __enable_excp_irq();
}

Then the timer interrupts will work.

[nyh-workshop]

Hi there, thanks very much for the translation and the fix! This fix actually works!
Is there a plan to add this fix so that it's easier for us to integrate the FreeRTOS inside while using other interrupts? 👍

[IOsetting]

I am not quite sure about the side effects... I didn't play much with w806 recently. Sure, the macros will be updated when there are more feedback on this change.

[nyh-workshop]

Hello, thanks for the assistance. I have written another example code with this change and so far it is running good. :)

[IOsetting]

It's really cool~ I will try it when I get a pcm5102.

[IOsetting]

I played it using a max98357. The music reminds me of the old games, beautiful.