Is NRF_POWER->GPREGRET 8bits ?

[YeLun]

Hi,

NRF_POWER->GPREGRET =0x12345678;

Why only 8bits(0x00000078) be saved ?

[bjorn-spockeli]

Yes, the general-purpose retention registers( GPREGRET and GPREGRET2) are 8 bit registers, please refer this page in the nRF52832 Product Specification.

[YeLun]

__IO uint32_t GPREGRET; /*!< General purpose retention register. This register is retained register. */

In nrf51.h the define show me uint32_t.

Thanks!