/**
****************************************************************************************
* @brief Selects convertion function (XTAL32 or RCX20) for low power cycles to us.
*
* @param[in] lpcycles. Low power cycles
*
* @return uint32. microseconds
****************************************************************************************
*/
uint32_t lld_sleep_lpcycles_2_us_sel_func(uint32_t lpcycles)
{
volatile uint32_t us;
if ( ((lp_clk_sel == LP_CLK_XTAL32) && (CFG_LP_CLK == LP_CLK_FROM_OTP)) || (CFG_LP_CLK == LP_CLK_XTAL32) )
us = lld_sleep_lpcycles_2_us_func(lpcycles);
else if ( ((lp_clk_sel == LP_CLK_RCX20) && (CFG_LP_CLK == LP_CLK_FROM_OTP)) || (CFG_LP_CLK == LP_CLK_RCX20) )
us = lld_sleep_lpcycles_2_us_rcx_func(lpcycles);
return(us);
}
uint32_t lld_sleep_lpcycles_2_us_sel_func(uint32_t lpcycles)
{
volatile uint32_t us;
if (lp_clk_sel == LP_CLK_XTAL32)
us = lld_sleep_lpcycles_2_us_func(lpcycles);
else //LP_CLK_RCX20
us = lld_sleep_lpcycles_2_us_rcx_func(lpcycles);
return(us);
}
void lld_sleep_init_func(void)
{
uint16_t delay;
uint32_t twirq_set_value;
if (lp_clk_sel == LP_CLK_RCX20)
twirq_set_value = XTAL_TRIMMING_TIME_RCX;
else // if (lp_clk_sel == LP_CLK_XTAL32)
twirq_set_value = XTAL_TRIMMING_TIME;
// Clear the environment
memset(&lld_sleep_env, 0, sizeof(lld_sleep_env));
// Actual "delay" is application specific and is the execution time of the BLE_WAKEUP_LP_Handler(), which depends on XTAL trimming delay,
// plus the time taken for the OTP copy. Time unit of delay is usec.
delay = lld_sleep_lpcycles_2_us_func(twirq_set_value);
// Icrease time taking in to account the time from the setting of BLE_DEEP_SLEEP_ON_BIT until the execution of WFI.
delay += 200;
rwip_wakeup_delay_set(delay);
// Enable external wake-up by default
ble_extwkupdsb_setf(0);
}
