Enable nxp mcus general power off demo #93248
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ZhaoxiangJin
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Jul 17, 2025
ZhaoxiangJin
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- Enabled generic poweroff example for NXP MCUs. The example can test pass on frdm_mcxa153, frdm_mcxa156, frdm_mcxa166, frdm_mcxa276, frdm_mcxn236, frdm_mcxn947 and mimxrt595_evk.
- Migrate the existing mimxrt595_evk/system_off example to the new poweroff example.
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@ZhaoxiangJin please address the CI issues |
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Pulling MCUX SDK cmc, vbat, wuu driver to Zephyr build tree. Signed-off-by: Zhaoxiang Jin <[email protected]>
This commit enables MCXN236, MCXN947 LPUART pin internal pullup resistor. For MCXN947 and MCXN236, during LPUAR initialization, the RX pin is pulled down internally and STAT[RAF] is set to one. In this state, attempting to enter low power mode will trigger LPACK reset and therefore cannot truly enter low power mode. The correct setting should be to enable LPUART pin internal pullup resistor. Signed-off-by: Zhaoxiang Jin <[email protected]>
This commit introduced the following changes: 1. Selected kconfig option 'HAS_POWEROFF' for NXP MCXA series. 2. Added power.c for NXP MCXA series, in this file, we currently implemented 'z_sys_poweroff()' function. 3. For the MCXA series, after waking up from the deep power down mode, the reset handler will be executed, and we need to release the I/O pads and certain peripheral devices to normal operating mode in 'soc_reset_hook'. Signed-off-by: Zhaoxiang Jin <[email protected]>
This commit introduced the following changes: 1. Selected kconfig option 'HAS_POWEROFF' for NXP MCXN series. 2. Added power.c for NXP MCXN series, in this file, we currently implemented 'z_sys_poweroff()' function. 3. For the MCXN series, after waking up from the deep power down mode, the reset handler will be executed, and we need to release the I/O pads and certain peripheral devices to normal operating mode in 'soc_reset_hook'. Signed-off-by: Zhaoxiang Jin <[email protected]>
This commit introduced the following changes: 1. MIMXRT595 poweroff corresponds to its full deep power down mode not deep power down mode. 2. Enable OSC32K before poweroff, the OSC32K is the clock source of the wakeup source RTC. 3. Enable RTC wake-up function. Signed-off-by: Zhaoxiang Jin <[email protected]>
Enabled FRO16k for LPTMR when LPTMR clock source is set to 0x1. Signed-off-by: Zhaoxiang Jin <[email protected]>
Enabled FRO16k for LPTMR when LPTMR clock source is set to 0x1. Signed-off-by: Zhaoxiang Jin <[email protected]>
This commit introduced the following changes: 1. Enabled generic poweroff example for NXP MCUs. The example is test on frdm_mcxa153, frdm_mcxa156, frdm_mcxa166, frdm_mcxa276, frdm_mcxn236, frdm_mcxn947 and mimxrt595_evk. 3. Migrate the existing mimxrt595_evk/system_off example to the new poweroff example. 4. The Poweroff example now supports counter wake-up and button/GPIO wake-up, suitable for most NXP devices/boards. For testing purposes, frdm_mcxn236 is wakeup using the wake-up button; frdm_mcxa153, frdm_mcxa156, frdm_mcxa166, frdm_mcxa276, and frdm_mcxn947 are wakeup using lptmr; mimxrt595_evk is wakeup using high-resolution RTC. Signed-off-by: Zhaoxiang Jin <[email protected]>
1. Update redirects.py to find the correct mimxrt595_evk system_off example README. 2. Update release-notes to record the new nxp poweroff example. Signed-off-by: Zhaoxiang Jin <[email protected]>
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