ARMmbed
/
mbed-os
mirror of https://github.com/ARMmbed/mbed-os.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

Fix ISR powerdown in mbed_application.c 

Fix a calculation error in in powerdown_nvic preventing the last
group of 32 interrupts from getting powered down. The ARMv7m reference
manual states "the total number of interrupt lines is up
to (32*(INTLINESNUM+1)).".

Also rename isr_count to isr_groups_32 for clarity, since this is
actually the number of 32 interrupt groups.
pull/4954/head
Russ Butler 2017-08-22 10:50:37 -05:00
parent 316c875136
commit 29ad5bb09b
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
platform/mbed_application.c
View File

@ -44,12 +44,12 @@ void mbed_start_application(uintptr_t address)
static void powerdown_nvic()
{
int isr_count;
int isr_groups_32;
int i;
int j;
isr_count = (SCnSCB->ICTR & SCnSCB_ICTR_INTLINESNUM_Msk) >> SCnSCB_ICTR_INTLINESNUM_Pos;
for (i = 0; i < isr_count; i++) {
isr_groups_32 = ((SCnSCB->ICTR & SCnSCB_ICTR_INTLINESNUM_Msk) >> SCnSCB_ICTR_INTLINESNUM_Pos) + 1;
for (i = 0; i < isr_groups_32; i++) {
NVIC->ICER[i] = 0xFFFFFFFF;
NVIC->ICPR[i] = 0xFFFFFFFF;
for (j = 0; j < 8; j++) {