AM64x MCU+ SDK  08.02.00

Detailed Description

Get the current frequency of a device's clock.

This message will only succeed if the clock is currently enabled, otherwise it returns nack.

Parameters
hdrTISCI header
deviceThe device ID that the clock is connected to.
clkEach device has its own set of clock inputs. This indexes which clock input to query.

If the clock index is 255 or greater, this field should be set to 255 and the full value placed in the clk32 field. This is kept for backwards compatibility with older firmwares.

Parameters
clk32Stores the actual clock index if clk field is set to 255. This field is ignored otherwise. This field can hold the full range of possible clock indexes, but for compatibility with older firmwares should only be used when the index is 255 or greater.

Data Fields

struct tisci_header hdr
 
uint32_t device
 
uint8_t clk
 
uint32_t clk32
 

Field Documentation

◆ hdr

struct tisci_header tisci_msg_get_freq_req::hdr

◆ device

uint32_t tisci_msg_get_freq_req::device

◆ clk

uint8_t tisci_msg_get_freq_req::clk

◆ clk32

uint32_t tisci_msg_get_freq_req::clk32