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cpu/samd5x: allow to block IDLE mode

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Make it possible to prevent the CPU clock from stopping.
This commit is contained in:
Benjamin Valentin 2022-03-29 18:12:32 +02:00
parent 6849e33854
commit 7c3bfb980e
2 changed files with 8 additions and 2 deletions
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6
cpu/samd5x/include/periph_cpu.h
View File

@ -53,7 +53,11 @@ extern "C" {
* @name Power mode configuration * @name Power mode configuration
* @{ * @{
*/ */
#define PM_NUM_MODES (3) #define PM_NUM_MODES 4 /**< Backup, Hibernate, Standby, Idle */
#ifndef PM_BLOCKER_INITIAL
#define PM_BLOCKER_INITIAL 0x00010101 /**< Block all modes but Idle */
#endif
/** @} */ /** @} */
/** /**

4
cpu/samd5x/periph/pm.c
View File

@ -45,11 +45,13 @@ void pm_set(unsigned mode)
_mode = PM_SLEEPCFG_SLEEPMODE_STANDBY; _mode = PM_SLEEPCFG_SLEEPMODE_STANDBY;
deep = 1; deep = 1;
break; break;
default: /* Falls through */
case 3: case 3:
DEBUG_PUTS("pm_set(): setting IDLE2 mode."); DEBUG_PUTS("pm_set(): setting IDLE2 mode.");
_mode = PM_SLEEPCFG_SLEEPMODE_IDLE2; _mode = PM_SLEEPCFG_SLEEPMODE_IDLE2;
break; break;
default:
/* no sleep */
return;
} }
/* write sleep configuration */ /* write sleep configuration */