sd_softdevice_enable not return

[geniusgogo]

case 1: i use rtthread RTOS, main() disable global irq，on os scheduler enable global irq. but i on task init stack, sd_softdevice_enable not return,system always reset. case 2: i removed disable gloval irq line, is normal init statck. What is the problem?

code below:

int main(void)
{
	/* disable interrupt first */
	// rt_hw_interrupt_disable();

	/* startup RT-Thread RTOS */
	rtthread_startup();

	return 0;
}

rt_hw_context_switch_to    PROC
    EXPORT rt_hw_context_switch_to
    ; set to thread
    LDR     r1, =rt_interrupt_to_thread
    STR     r0, [r1]

   ......

    ; enable interrupts at processor level
    CPSIE   I

[Jørgen Holmefjord]

Hi,

You cannot disable global interrupts when using the softdevice. The softdevice will assert if it see that the interrupts it use have been disabled.

Instead, you can use sd_nvic_critical_region_enter() and sd_nvic_critical_region_exit(), which will disable application interrupts.

Best regards,

Jørgen

[geniusgogo]

after os scheduler enable global irq. i on task init softdevice.,

[geniusgogo]

my BLE stack initialization in the thread. so main() begin disable global interrupts but when OS start scheduler can be open global interrupts,

rt_hw_context_switch_to    PROC
EXPORT rt_hw_context_switch_to
; set to thread
LDR     r1, =rt_interrupt_to_thread
STR     r0, [r1]

......

; enable interrupts at processor level
CPSIE   I

[geniusgogo]

PendSV_Handler PROC EXPORT PendSV_Handler

; disable interrupt to protect context switch
MRS     r2, PRIMASK
CPSID   I
......
pendsv_exit
    ; restore interrupt
    MSR     PRIMASK, r2

[Jørgen Holmefjord]

I don't understand your comments. You can't initialize the BLE stack if global interrupts are disabled.