int main_func(void)
{
volatile unsigned i;
sleep_mode_t sleep_mode; // keep at system RAM. On each while loop it will get a new value.
sys_startup_flag = true;
/*
************************************************************************************
* Platform initialization
************************************************************************************
*/
#if (USE_WDOG)
SetWord16(WATCHDOG_REG, 0xC8); // 200 * 10.24ms = ~2sec active time!
SetWord16(WATCHDOG_CTRL_REG, 0); // Generate an NMI when counter reaches 0 and a WDOG (SYS) Reset when it reaches -16!
// WDOG can be frozen by SW!
SetWord16(RESET_FREEZE_REG, FRZ_WDOG); // Start WDOG
#else
SetWord16(SET_FREEZE_REG, FRZ_WDOG);
#endif
set_system_clocks();
GPIO_init();
periph_init();
/* Don't remove next line otherwhise dummy[0] could be optimized away
* The dummy array is intended to reserve the needed Exch.Memory space in retention memory
*/
dummy[0] = dummy[0];
descript[0] = descript[0];
#if (BLE_CONNECTION_MAX_USER > 4)
cs_table[0] = cs_table[0];
#endif
/* Don't remove next line otherwhise data__1 is optimized away.
* The address 0x9010 is used by the ROM code (rand.o) and cannot be used by the
* application code!
*/
//GZ data__1 = 0;
// Initialize unloaded RAM area
//unloaded_area_init();
// Initialize random process
srand(1);
// Initialize the exchange memory interface, emi in RAM for the time being, so no init necessary
#if 0
emi_init();
#endif
// Initialize NVDS module
nvds_init((uint8_t *)NVDS_FLASH_ADDRESS, NVDS_FLASH_SIZE);
//check and read BDADDR from OTP
nvds_read_bdaddr_from_otp();
#ifdef RADIO_580
iq_trim_from_otp();
#endif
/*
************************************************************************************
* BLE initialization
************************************************************************************
*/
init_pwr_and_clk_ble();
//diagnostic();
// rf_init(&rwip_rf);
// SetBits32(BLE_RADIOCNTL1_REG, XRFSEL, 3);
#if UNCALIBRATED_AT_FAB
SetBits16(BANDGAP_REG, BGR_TRIM, 0x0); // trim RET Bandgap
SetBits16(BANDGAP_REG, LDO_RET_TRIM, 0xA); // trim RET LDO
SetWord16(RF_LNA_CTRL1_REG, 0x24E);
SetWord16(RF_LNA_CTRL2_REG, 0x26);
SetWord16(RF_LNA_CTRL3_REG, 0x7);
SetWord16(RF_RSSI_COMP_CTRL_REG, 0x7777);
SetWord16(RF_VCO_CTRL_REG, 0x1);
SetBits16(CLK_16M_REG, RC16M_TRIM, 0xA);
#endif
// Initialize BLE stack
NVIC_ClearPendingIRQ(BLE_SLP_IRQn);
NVIC_ClearPendingIRQ(BLE_EVENT_IRQn);
NVIC_ClearPendingIRQ(BLE_RF_DIAG_IRQn);
NVIC_ClearPendingIRQ(BLE_RX_IRQn);
NVIC_ClearPendingIRQ(BLE_CRYPT_IRQn);
NVIC_ClearPendingIRQ(BLE_FINETGTIM_IRQn);
NVIC_ClearPendingIRQ(BLE_GROSSTGTIM_IRQn);
NVIC_ClearPendingIRQ(BLE_WAKEUP_LP_IRQn);
rwip_init(error);
/* Set spi to HW (Ble)
* Necessary: So from this point the BLE HW can generate spi burst iso SW
* SPI BURSTS are necessary for the radio TX and RX burst, done by hardware
* beause of the accurate desired timing
*/
//FPGA
#ifdef FPGA_USED
SetBits32(BLE_CNTL2_REG,SW_RPL_SPI ,1);
#endif
//Enable BLE core
SetBits32(BLE_RWBTLECNTL_REG,RWBLE_EN ,1);
#if RW_BLE_SUPPORT && HCIC_ITF
// If FW initializes due to FW reset, send the message to Host
if(error != RESET_NO_ERROR)
{
rwble_send_message(error);
}
#endif
/*
************************************************************************************
* Sleep mode initializations (especially for full embedded)
************************************************************************************
*/
#if (EXT_SLEEP_ENABLED)
app_set_extended_sleep();
#elif (DEEP_SLEEP_ENABLED)
app_set_deep_sleep();
#else
app_disable_sleep();
#endif
if (lp_clk_sel == LP_CLK_RCX20)
{
calibrate_rcx20(20);
read_rcx_freq(20);
}
/*
************************************************************************************
* Application initializations
************************************************************************************
*/
#if (BLE_APP_PRESENT)
{
app_init(); // Initialize APP
}
#endif /* #if (BLE_APP_PRESENT) */
/*
************************************************************************************
* Main loop
************************************************************************************
*/
lld_sleep_init_func();
SetWord16(TRIM_CTRL_REG, 0xA2);
SetBits16(CLK_16M_REG, XTAL16_CUR_SET, 0x5);
// // Gives 1dB higher sensitivity - UNTESTED
// if (GetBits16(ANA_STATUS_REG, BOOST_SELECTED) == 0x1)
// {
// // Boost-mode
// SetBits16(DCDC_CTRL2_REG, DCDC_CUR_LIM, 0x8); // 80mA
// }
// else
// {
// // Buck-mode
// SetBits16(DCDC_CTRL2_REG, DCDC_CUR_LIM, 0x4); // 40mA
// }
// Now enable the TX_EN/RX_EN interrupts, depending on the RF mode of operation (PLL-LUT and MGC_KMODALPHA combinations)
#if LUT_PATCH_ENABLED
const volatile struct LUT_CFG_struct *pLUT_CFG;
pLUT_CFG = (const volatile struct LUT_CFG_struct *)(jump_table_struct[lut_cfg_pos]);
if (!pLUT_CFG->HW_LUT_MODE)
{
enable_rf_diag_irq(RF_DIAG_IRQ_MODE_RXTX);
}
else
{
#if MGCKMODA_PATCH_ENABLED
enable_rf_diag_irq(RF_DIAG_IRQ_MODE_TXONLY); // This just enables the TX_EN int. RX_EN int enable status remains as it was
#endif //MGCKMODA_PATCH_ENABLED
}
#else //LUT_PATCH_ENABLED
#if MGCKMODA_PATCH_ENABLED
enable_rf_diag_irq(RF_DIAG_IRQ_MODE_TXONLY); // This just enables the TX_EN int. RX_EN int enable status remains as it was
#endif //MGCKMODA_PATCH_ENABLED
#endif //LUT_PATCH_ENABLED
#if BLE_APP_SPOTAR
//app_spotar_exec_patch();
#endif
if ( (app_get_sleep_mode() == 2) || (app_get_sleep_mode() == 1) )
{
SetWord16(SET_FREEZE_REG, FRZ_WDOG); // Stop WDOG until debugger is removed
if ((GetWord16(SYS_STAT_REG) & DBG_IS_UP) == DBG_IS_UP)
SetBits16(SYS_CTRL_REG, DEBUGGER_ENABLE, 1); // close debugger
}
/*
************************************************************************************
* Watchdog
************************************************************************************
*/
#if (USE_WDOG)
SetWord16(WATCHDOG_REG, 0xC8); // 200 * 10.24ms active time for initialization!
SetWord16(RESET_FREEZE_REG, FRZ_WDOG); // Start WDOG
#endif
/*
************************************************************************************
* Main loop
************************************************************************************
*/
while(1)
{
// schedule all pending events
if(GetBits16(CLK_RADIO_REG, BLE_ENABLE) == 1) { // BLE clock is enabled
if(GetBits32(BLE_DEEPSLCNTL_REG, DEEP_SLEEP_STAT) == 0 && !(rwip_prevent_sleep_get() & RW_WAKE_UP_ONGOING)) { // BLE is running
#ifndef FPGA_USED
uint8_t ble_evt_end_set = ke_event_get(KE_EVENT_BLE_EVT_END); // BLE event end is set. conditional RF calibration can run.
#endif
rwip_schedule();
#ifndef FPGA_USED
if (ble_evt_end_set)
{
uint32_t sleep_duration = 0;
if (lp_clk_sel == LP_CLK_RCX20)
read_rcx_freq(20);
if (lld_sleep_check(&sleep_duration, 4)) //6 slots -> 3.750 ms
conditionally_run_radio_cals(); // check time and temperature to run radio calibrations.
}
#endif
#if (BLE_APP_PRESENT)
if ( app_asynch_trm() )
continue; // so that rwip_schedule() is called again
#endif
}
}
#if (BLE_APP_PRESENT)
// asynchronous events processing
if (app_asynch_proc())
continue; // so that rwip_schedule() is called again
#endif
GLOBAL_INT_STOP();
#if (BLE_APP_PRESENT)
app_asynch_sleep_proc();
#endif
// if app has turned sleep off, rwip_sleep() will act accordingly
// time from rwip_sleep() to WFI() must be kept as short as possible!
sleep_mode = rwip_sleep();
// BLE is sleeping ==> app defines the mode
if (sleep_mode == mode_sleeping) {
if (sleep_env.slp_state == ARCH_EXT_SLEEP_ON) {
sleep_mode = mode_ext_sleep;
} else {
sleep_mode = mode_deep_sleep;
}
}
if (sleep_mode == mode_ext_sleep || sleep_mode == mode_deep_sleep)
{
SetBits16(PMU_CTRL_REG, RADIO_SLEEP, 1); // turn off radio
if (jump_table_struct[nb_links_user] > 1)
{
if( (sleep_mode == mode_deep_sleep) && func_check_mem() && test_rxdone() && ke_mem_is_empty(KE_MEM_NON_RETENTION) )
{
func_check_mem_flag = 2;//true;
}
else
sleep_mode = mode_ext_sleep;
}
else
{
if( (sleep_mode == mode_deep_sleep) && ke_mem_is_empty(KE_MEM_NON_RETENTION) )
{
func_check_mem_flag = 1;//true;
}
else
sleep_mode = mode_ext_sleep;
}
#if (BLE_APP_PRESENT)
// hook for app specific tasks when preparing sleeping
app_sleep_prepare_proc(&sleep_mode);
#endif
if (sleep_mode == mode_ext_sleep || sleep_mode == mode_deep_sleep)
{
SCB->SCR |= 1<<2; // enable sleepdeep mode bit in System Control Register (SCR[2]=SLEEPDEEP)
SetBits16(SYS_CTRL_REG, PAD_LATCH_EN, 0); // activate PAD latches
SetBits16(PMU_CTRL_REG, PERIPH_SLEEP, 1); // turn off peripheral power domain
if (sleep_mode == mode_ext_sleep) {
SetBits16(SYS_CTRL_REG, RET_SYSRAM, 1); // retain System RAM
SetBits16(SYS_CTRL_REG, OTP_COPY, 0); // disable OTP copy
} else { // mode_deep_sleep
#if DEVELOPMENT__NO_OTP
SetBits16(SYS_CTRL_REG, RET_SYSRAM, 1); // retain System RAM
#else
SetBits16(SYS_CTRL_REG, RET_SYSRAM, 0); // turn System RAM off => all data will be lost!
#endif
otp_prepare(0x1FC0); // this is 0x1FC0 32 bits words, so 0x7F00 bytes
}
}
SetBits16(CLK_16M_REG, XTAL16_BIAS_SH_DISABLE, 0);
#if (BLE_APP_PRESENT)
// hook for app specific tasks just before sleeping
app_sleep_entry_proc(&sleep_mode);
#endif
WFI();
#if (BLE_APP_PRESENT)
// hook for app specific tasks just after waking up
app_sleep_exit_proc(sleep_mode);
#endif
// reset SCR[2]=SLEEPDEEP bit else the mode=idle WFI will cause a deep sleep
// instead of a processor halt
SCB->SCR &= ~(1<<2);
}
else if (sleep_mode == mode_idle) {
#if (!BLE_APP_PRESENT)
if (check_gtl_state())
{
#endif
WFI();
#if (!BLE_APP_PRESENT)
}
#endif
}
// restore interrupts
GLOBAL_INT_START();
#if (USE_WDOG)
SetWord16(WATCHDOG_REG, 0xC8); // Reset WDOG! 200 * 10.24ms active time for normal mode!
#endif
}
}
int main_func(void)
{
volatile unsigned i;
sleep_mode_t sleep_mode; // keep at system RAM. On each while loop it will get a new value.
sys_startup_flag = true;
/*
************************************************************************************
* Platform initialization
************************************************************************************
*/
#if (USE_WDOG)
SetWord16(WATCHDOG_REG, 0xC8); // 200 * 10.24ms = ~2sec active time!
SetWord16(WATCHDOG_CTRL_REG, 0); // Generate an NMI when counter reaches 0 and a WDOG (SYS) Reset when it reaches -16!
// WDOG can be frozen by SW!
SetWord16(RESET_FREEZE_REG, FRZ_WDOG); // Start WDOG
#else
SetWord16(SET_FREEZE_REG, FRZ_WDOG);
#endif
#if defined(CFG_USE_DEFAULT_XTAL16M_TRIM_VALUE_IF_NOT_CALIBRATED)
#define DEFAULT_XTAL16M_TRIM_VALUE (1302)
// Apply the default XTAL16 trim value if a trim value has not been programmed in OTP
if ( 0 == GetWord16(CLK_FREQ_TRIM_REG) )
{
SetBits16(CLK_16M_REG, RC16M_ENABLE, 1); // enable RC 16MHz
for (volatile int i = 0; i < 20; i++);
SetBits16(CLK_CTRL_REG, SYS_CLK_SEL, 1); // switch to RC16
while( (GetWord16(CLK_CTRL_REG) & RUNNING_AT_RC16M) == 0 ); // wait for actual switch
SetBits16(CLK_CTRL_REG, XTAL16M_DISABLE, 1); // disable XTAL16
SetWord16(CLK_FREQ_TRIM_REG, DEFAULT_XTAL16M_TRIM_VALUE); // set default trim value
SetBits16(CLK_CTRL_REG, XTAL16M_DISABLE, 0); // enable XTAL16
while( (GetWord16(SYS_STAT_REG) & XTAL16_SETTLED) == 0 ); // wait for XTAL16 settle
SetBits16(CLK_CTRL_REG , SYS_CLK_SEL ,0); // switch to XTAL16
while( (GetWord16(CLK_CTRL_REG) & RUNNING_AT_XTAL16M) == 0 ); // wait for actual switch
}
#endif
set_system_clocks();
GPIO_init();
periph_init();
/* Don't remove next line otherwhise dummy[0] could be optimized away
* The dummy array is intended to reserve the needed Exch.Memory space in retention memory
*/
dummy[0] = dummy[0];
descript[0] = descript[0];
#ifndef __DA14581__
#if (BLE_CONNECTION_MAX_USER > 4)
cs_table[0] = cs_table[0];
#endif
#else
#if (BLE_CONNECTION_MAX_USER > 1)
cs_table[0] = cs_table[0];
#endif
#endif
/* Don't remove next line otherwhise data__1 is optimized away.
* The address 0x9010 is used by the ROM code (rand.o) and cannot be used by the
* application code!
*/
//GZ data__1 = 0;
// Initialize unloaded RAM area
//unloaded_area_init();
// Initialize random process
srand(1);
// Initialize the exchange memory interface, emi in RAM for the time being, so no init necessary
#if 0
emi_init();
#endif
// Initialize NVDS module // 初始化非易失性存储器
nvds_init((uint8_t *)NVDS_FLASH_ADDRESS, NVDS_FLASH_SIZE);
//check and read BDADDR from OTP
nvds_read_bdaddr_from_otp();
#ifdef RADIO_580
iq_trim_from_otp();
#endif
/*
************************************************************************************
* BLE initialization
************************************************************************************
*/
init_pwr_and_clk_ble();
//diagnostic();
// rf_init(&rwip_rf);
// SetBits32(BLE_RADIOCNTL1_REG, XRFSEL, 3);
#if UNCALIBRATED_AT_FAB
SetBits16(BANDGAP_REG, BGR_TRIM, 0x0); // trim RET Bandgap
SetBits16(BANDGAP_REG, LDO_RET_TRIM, 0xA); // trim RET LDO
SetWord16(RF_LNA_CTRL1_REG, 0x24E);
SetWord16(RF_LNA_CTRL2_REG, 0x26);
SetWord16(RF_LNA_CTRL3_REG, 0x7);
SetWord16(RF_VCO_CTRL_REG, 0x1);
SetBits16(CLK_16M_REG, RC16M_TRIM, 0xA);
#endif
// Initialize BLE stack
NVIC_ClearPendingIRQ(BLE_SLP_IRQn);
NVIC_ClearPendingIRQ(BLE_EVENT_IRQn);
NVIC_ClearPendingIRQ(BLE_RF_DIAG_IRQn);
NVIC_ClearPendingIRQ(BLE_RX_IRQn);
NVIC_ClearPendingIRQ(BLE_CRYPT_IRQn);
NVIC_ClearPendingIRQ(BLE_FINETGTIM_IRQn);
NVIC_ClearPendingIRQ(BLE_GROSSTGTIM_IRQn);
NVIC_ClearPendingIRQ(BLE_WAKEUP_LP_IRQn);
rwip_init(error);
#if ((BLE_APP_PRESENT == 0 || BLE_INTEGRATED_HOST_GTL == 1) && BLE_HOST_PRESENT )
patch_gtl_task();
#endif // #if (BLE_APP_PRESENT == 0 || BLE_INTEGRATED_HOST_GTL == 1)
/* Set spi to HW (Ble)
* Necessary: So from this point the BLE HW can generate spi burst iso SW
* SPI BURSTS are necessary for the radio TX and RX burst, done by hardware
* beause of the accurate desired timing
*/
//FPGA
#ifdef FPGA_USED
SetBits32(BLE_CNTL2_REG,SW_RPL_SPI ,1);
#endif
//Enable BLE core
SetBits32(BLE_RWBTLECNTL_REG,RWBLE_EN ,1);
#if RW_BLE_SUPPORT && HCIC_ITF
// If FW initializes due to FW reset, send the message to Host
if(error != RESET_NO_ERROR)
{
rwble_send_message(error);
}
#endif
/*
************************************************************************************
* Sleep mode initializations (especially for full embedded)
************************************************************************************
*/
#if (EXT_SLEEP_ENABLED)
app_set_extended_sleep();
#elif (DEEP_SLEEP_ENABLED)
app_set_deep_sleep();
#else
app_disable_sleep();
#endif
if (lp_clk_sel == LP_CLK_RCX20)
{
calibrate_rcx20(20);
read_rcx_freq(20);
}
/*
************************************************************************************
* Application initializations
************************************************************************************
*/
#if (BLE_APP_PRESENT)
{
app_init(); // Initialize APP // 初始化应用程序
}
#endif /* #if (BLE_APP_PRESENT) */
/*
************************************************************************************
* Main loop
************************************************************************************
*/
lld_sleep_init_func();
SetWord16(TRIM_CTRL_REG, 0xA2);
SetBits16(CLK_16M_REG, XTAL16_CUR_SET, 0x5);
// // Gives 1dB higher sensitivity - UNTESTED
// if (GetBits16(ANA_STATUS_REG, BOOST_SELECTED) == 0x1)
// {
// // Boost-mode
// SetBits16(DCDC_CTRL2_REG, DCDC_CUR_LIM, 0x8); // 80mA
// }
// else
// {
// // Buck-mode
// SetBits16(DCDC_CTRL2_REG, DCDC_CUR_LIM, 0x4); // 40mA
// }
// Now enable the TX_EN/RX_EN interrupts, depending on the RF mode of operation (PLL-LUT and MGC_KMODALPHA combinations)
enable_rf_diag_irq(RF_DIAG_IRQ_MODE_RXTX);
#if BLE_APP_SPOTAR
// 打补丁
//app_spotar_exec_patch();
#endif
if ( (app_get_sleep_mode() == 2) || (app_get_sleep_mode() == 1) )
{
SetWord16(SET_FREEZE_REG, FRZ_WDOG); // Stop WDOG until debugger is removed
while ((GetWord16(SYS_STAT_REG) & DBG_IS_UP) == DBG_IS_UP) {};
SetBits16(SYS_CTRL_REG, DEBUGGER_ENABLE, 0); // close debugger
}
/*
************************************************************************************
* Watchdog
************************************************************************************
*/
#if (USE_WDOG)
SetWord16(WATCHDOG_REG, 0xC8); // 200 * 10.24ms active time for initialization!
SetWord16(RESET_FREEZE_REG, FRZ_WDOG); // Start WDOG
#endif
#if (STREAMDATA_QUEUE)
stream_fifo_init ();
#endif
/*
************************************************************************************
* Main loop
************************************************************************************
*/
// 设置LED电亮
SetWord16(P10_MODE_REG,0x310);
SetWord16(P11_MODE_REG,0x300);
//SetWord16(P1_DATA_REG,~(GetWord16(P1_DATA_REG)) | 0xfd);
//SetWord16(P10_MODE_REG,0x300);
// // 定时器时钟使能
// SetWord16(CLK_PER_REG, 0x0008);
// //
// SetWord16(TIMER0_CTRL_REG, 0x0e);
// SetWord16(TIMER0_ON_REG, 65535);
// SetWord16(TIMER0_RELOAD_M_REG, 10000);
// SetWord16(TIMER0_RELOAD_N_REG, 5000);
// SetWord16(TIMER0_CTRL_REG, TIMER0_CTRL_REG | 0x01);
// NVIC_SetPriority(SWTIM_IRQn,254);
// NVIC_EnableIRQ(SWTIM_IRQn);
while(1)
{
// schedule all pending events
if(GetBits16(CLK_RADIO_REG, BLE_ENABLE) == 1) { // BLE clock is enabled
if(GetBits32(BLE_DEEPSLCNTL_REG, DEEP_SLEEP_STAT) == 0 && !(rwip_prevent_sleep_get() & RW_WAKE_UP_ONGOING)) { // BLE is running
#ifndef FPGA_USED
uint8_t ble_evt_end_set = ke_event_get(KE_EVENT_BLE_EVT_END); // BLE event end is set. conditional RF calibration can run.
#endif
rwip_schedule(); // 调度 aiwesky 20101003
#ifndef FPGA_USED
if (ble_evt_end_set)
{
uint32_t sleep_duration = 0;
if (lp_clk_sel == LP_CLK_RCX20)
read_rcx_freq(20);
if (lld_sleep_check(&sleep_duration, 4)) //6 slots -> 3.750 ms
conditionally_run_radio_cals(); // check time and temperature to run radio calibrations.
}
#endif
#if (BLE_APP_PRESENT)
if ( app_asynch_trm() )
continue; // so that rwip_schedule() is called again
#endif
#ifdef CFG_PRINTF
{
arch_printf_process();
}
#endif
}
}
#if (BLE_APP_PRESENT)
// asynchronous events processing
if (app_asynch_proc())
continue; // so that rwip_schedule() is called again
#endif
#if (STREAMDATA_QUEUE)
if (stream_queue_more_data( ))
continue;
#endif
#if (!BLE_APP_PRESENT)
if (check_gtl_state())
#endif
{
GLOBAL_INT_STOP();
#if (BLE_APP_PRESENT)
app_asynch_sleep_proc();
#endif
// // set wake-up delay only for RCX (to cover small frequency shifts due to temerature variation)
// if (lp_clk_sel == LP_CLK_RCX20)
// set_sleep_delay();
// if app has turned sleep off, rwip_sleep() will act accordingly
// time from rwip_sleep() to WFI() must be kept as short as possible!
sleep_mode = rwip_sleep(); // 读取休眠模式
// BLE is sleeping ==> app defines the mode
if (sleep_mode == mode_sleeping) {
if (sleep_env.slp_state == ARCH_EXT_SLEEP_ON) {
sleep_mode = mode_ext_sleep;
} else {
sleep_mode = mode_deep_sleep;
}
}
if (sleep_mode == mode_ext_sleep || sleep_mode == mode_deep_sleep)
{
SetBits16(PMU_CTRL_REG, RADIO_SLEEP, 1); // turn off radio
if (jump_table_struct[nb_links_user] > 1)
{
if( (sleep_mode == mode_deep_sleep) && func_check_mem() && test_rxdone() && ke_mem_is_empty(KE_MEM_NON_RETENTION) )
{
func_check_mem_flag = 2;//true;
}
else
sleep_mode = mode_ext_sleep;
}
else
{
if( (sleep_mode == mode_deep_sleep) && ke_mem_is_empty(KE_MEM_NON_RETENTION) )
{
func_check_mem_flag = 1;//true;
}
else
sleep_mode = mode_ext_sleep;
}
#if (BLE_APP_PRESENT)
// hook for app specific tasks when preparing sleeping
app_sleep_prepare_proc(&sleep_mode);
#endif
if (sleep_mode == mode_ext_sleep || sleep_mode == mode_deep_sleep)
{
SCB->SCR |= 1<<2; // enable sleepdeep mode bit in System Control Register (SCR[2]=SLEEPDEEP)
SetBits16(SYS_CTRL_REG, PAD_LATCH_EN, 0); // activate PAD latches
SetBits16(PMU_CTRL_REG, PERIPH_SLEEP, 1); // turn off peripheral power domain
if (sleep_mode == mode_ext_sleep) {
SetBits16(SYS_CTRL_REG, RET_SYSRAM, 1); // retain System RAM
SetBits16(SYS_CTRL_REG, OTP_COPY, 0); // disable OTP copy
} else { // mode_deep_sleep
#if DEVELOPMENT_DEBUG
SetBits16(SYS_CTRL_REG, RET_SYSRAM, 1); // retain System RAM
#else
SetBits16(SYS_CTRL_REG, RET_SYSRAM, 0); // turn System RAM off => all data will be lost!
#endif
otp_prepare(0x1FC0); // this is 0x1FC0 32 bits words, so 0x7F00 bytes
}
}
SetBits16(CLK_16M_REG, XTAL16_BIAS_SH_DISABLE, 0);
#if (BLE_APP_PRESENT)
// hook for app specific tasks just before sleeping
app_sleep_entry_proc(&sleep_mode);
#endif
#if ((EXTERNAL_WAKEUP) && (!BLE_APP_PRESENT)) // external wake up, only in external processor designs
ext_wakeup_enable(EXTERNAL_WAKEUP_GPIO_PORT, EXTERNAL_WAKEUP_GPIO_PIN, EXTERNAL_WAKEUP_GPIO_POLARITY);
#endif
WFI(); // 暂停执行直到事件发生 aiwesky 20151003
#if (BLE_APP_PRESENT)
// hook for app specific tasks just after waking up
app_sleep_exit_proc(sleep_mode);
#endif
#if ((EXTERNAL_WAKEUP) && (!BLE_APP_PRESENT)) // external wake up, only in external processor designs
// Disable external wakeup interrupt
ext_wakeup_disable();
#endif
// reset SCR[2]=SLEEPDEEP bit else the mode=idle WFI will cause a deep sleep
// instead of a processor halt
SCB->SCR &= ~(1<<2);
}
else if (sleep_mode == mode_idle)
{
#if (!BLE_APP_PRESENT)
if (check_gtl_state())
#endif
{
WFI();
}
}
// restore interrupts
GLOBAL_INT_START();
}
#if (USE_WDOG)
SetWord16(WATCHDOG_REG, 0xC8); // Reset WDOG! 200 * 10.24ms active time for normal mode!
#endif
}
}