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sdmmc_host_get_real_freq() function
Provides a real frequency used for an SD card installed on specific slot of SD/MMC host controller This function calculates real working frequency given by current SD/MMC host controller setup for required slot: it reads associated host and card dividers from corresponding SDMMC registers, calculates respective frequency and stores the value into the 'real_freq_khz' parameter
Syntax
Implemented in ![]()
sdmmc_host.c:339
Return value
- ESP_OK on success - ESP_ERR_INVALID_ARG on real_freq_khz == NULL or invalid slot number used
Examples
Code
Location
Data Use
from 0/7 examplessdmmc_host_get_real_freq() reads 4 variables:
Implementations
from 0/7 examplessdmmc_host_get_real_freq() is implemented by 1 functions: