FPU

[Jim]

I am looking at routine 'spi_master_using_nrf_spi_mngr', I found "#define NRF_PWR_MGMT_CONFIG_FPU_SUPPORT_ENABLED 1 " in the sdk_config.h file. Is this part of the routine used for FPU, is it GFX or something else? (nrf52832 sdk14.2)

[Einar Thorsrud]

Hi,

The NRF_PWR_MGMT_CONFIG_FPU_SUPPORT_ENABLED is not related to SPI or GFX at all. It is a configuration parameter supplied to the power management module. If set to 1, the power management module will clear FPU exceptions, which would otherwise prevent the system from sleeping. It is only useful if you are using the FPU in your application.