LPC5410x Errata : POWER_API.1

[BTaylor]

There is a section in the LPC5410x Errata Sheet (ES_LPC5410x) entitled: "POWER_API.1: The set-voltage API ROM call does not configure the internal regulator correctly for the desired operating frequency"

The stated workaround is the use the power_lib library in LPCOpen v3.xx when setting voltage for a given frequency. 

Based on NXP guidance, we are using the MCUxpresso SDK instead of the LPCOpen SDK for our LPC54102 project. 

Is the POWER_SetVoltageForFreq() function in the MCUXpresso SDK safe to use? In other words, is it implemented such that it avoids the issue described in the errata sheet?

[xiangjun_rong]

Hi,

I suppose that it is safe to use the void POWER_SetVoltageForFreq(uint32_t freq); which is defined in the fsl_power.h, the api function can set up LDO output voltage based on core frequency.

Hope it can help you

BR

XiangJun Rong