FAQ_MA35_Family_Adjust Core Power by PMIC
Posted: 23 Apr 2024, 15:26
In specific circumstances, it may be necessary to fine-tune the core power of the chip if the VDD_Core falls short of 1.25V. It's important to note that the suitability of this method depends on the power IC integrated into the board. Please refer to the power IC's specifications, as it may not support all voltage values.
Buildroot
Yocto
#MA35 #PMIC #Power
Buildroot
Code: Select all
$ make menuconfig
Bootloaders --->
(125) MA35D1 CPU Core Power.
$ make clean
$ make Code: Select all
Path: /yocto/source/meta-ma35d1/conf/machine
Choose the board you used like numaker-som-ma35d16a81.conf
# Set CPU core Power
# Suggestion: 1.25 for BGA packages, 1.20V for LQFP packages
# 120: 1.20V, 125: 1.25V, etc.
TFA_CPU_VOLTAGE = "125
$ bitbake tf-a-ma35d1 –c cleanall
$ bitbake nvt-image-qt5 –c cleanall
$ bitbake nvt-image-qt5