RT1052 SNVS RTC问题

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RT1052 SNVS RTC问题

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haifeng_jin
Contributor III

hi  在实验SNVS RTC的时候,发现    SNVS->LPGPR0_LEGACY_ALIAS 寄存器无法写入,在RM手册上说,需要有LOCK解锁才可以,但是查看仿真,相关的位已经解决,但是无法写入这个值,请问有什么解决办法

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jimmychan
NXP TechSupport
NXP TechSupport

Have you set both  GPR_HL and GPR_SL to zero?

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haifeng_jin
Contributor III

hi  Jimmy:

              yes  i have double check

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jimmychan
NXP TechSupport
NXP TechSupport

please write the data to register LPGPR0~LPGPR3, and LPGPR0_LEGACY_ALIAS register just keep compatible with legacy part, here it show the same contents with LPGPR0.

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