I am working on custom board with iMX7S. I am trying to configure SNVS button debounce interrupt at M4 to give periodic Interrupt at every 500ms if button is pressed.
This is the code snippet:
void PowerButton_Config( uint8_t config_ )
{
uint32_t temp; //temp. variable to hold read values
uint32_t newValues; //for applying mask
newValues = SNVS_LPCR_ON_TIME(PWRBTN_OFF2ON_TIME_500MS ) | SNVS_LPCR_DEBOUNCE(PWRBTN_DEBOUNCE_TIME_500MS )
| SNVS_LPCR_BTN_PRESS_TIME(PWRBTN_ON2OFF_TIME_DISABLED );
temp = SNVS_LPCR_REG( SNVS_BASE_PTR );
temp = temp & 0xFFC0FFFF;
temp = newValues | temp;
SNVS_LPCR_REG (SNVS_BASE_PTR ) = temp;
//Button Interrupt Configuration to give interrupt at both edges
SNVS_HPCR_REG( SNVS_BASE_PTR ) &= ~( SNVS_HPCR_BTN_CONFIG_MASK & ( 4 << SNVS_HPCR_BTN_CONFIG_SHIFT ));
SNVS_HPCR_REG( SNVS_BASE_PTR ) |= SNVS_HPCR_BTN_MASK_MASK;
NVIC_SetPriority( BOARD_SNVS_IRQ_NUM, 3 );
NVIC_EnableIRQ( BOARD_SNVS_IRQ_NUM );
}
But with this configuration a single interrupt is received but both cores M4 and A7 get hung.
Please help with configuration here.
