xsysmonpsu_intr_example.c File Reference

Overview

This file contains a design example using the driver functions of the System Monitor driver.

This example here shows the usage of the driver/device in interrupt mode to handle on-chip temperature and voltage alarm interrupts.

Note

This code assumes that no Operating System is being used.

The values of the on-chip Temperature, Supply 1 voltage and Supply 3 voltage are read from the device and then the alarm thresholds are set in such a manner that the alarms occur.

This examples also assumes that there is a STDIO device in the system. This example has floating point calculations and uses printfs for outputting floating point data, therefore the memory allocated for the Stack must be more.

MODIFICATION HISTORY:

Ver   Who    Date     Changes



1.0   kvn    12/15/15 First release
             02/15/16 Corrected order of Enabling / Disabling of
                      interrupts.
      ms     04/05/17 Modified Comment lines in functions to
                      recognize it as documentation block for doxygen
                      generation.
2.3  ms      12/12/17 Added peripheral test support
     mn      03/08/18 Update code to run at higher frequency
2.6  aad     11/21/19 Removed reading of AUX channels
     aad     11/22/19 Added support for PL_EXAMPLE
2.9   cog    07/20/23 Added support for SDT flow

Functions
int	SysMonPsuIntrExample (XScuGic *XScuGicInstPtr, XSysMonPsu *SysMonInstPtr, u32 SysMonDeviceId, u16 SysMonIntrId)
	This function runs a test on the System Monitor device using the driver APIs. More...
int	main (void)
	Main function that invokes the Interrupt example. More...

Function Documentation

int main

(

void

)

Main function that invokes the Interrupt example.

Parameters

None.

Returns

• XST_SUCCESS if the example has completed successfully.
• XST_FAILURE if the example has failed.

Note

None.

References SysMonPsuIntrExample().

int SysMonPsuIntrExample	(	XScuGic *	XScuGicInstPtr,
		XSysMonPsu *	SysMonInstPtr,
		u32	SysMonDeviceId,
		u16	SysMonIntrId
	)

This function runs a test on the System Monitor device using the driver APIs.

The function does the following tasks:

• Initiate the System Monitor device driver instance
• Run self-test on the device
• Reset the device
• Set up alarms for on-chip temperature, Supply 1 and Supply 3
• Set up sequence registers to continuously monitor on-chip temperature, Supply 1 and Supply 3
• Setup interrupt system
• Enable interrupts
• Set up configuration registers to start the sequence
• Wait until temperature alarm interrupt or Supply 1 alarm interrupt or Supply 3 alarm interrupt occurs

Parameters

XScuGicInstPtr	is a pointer to the Interrupt Controller driver Instance.
SysMonInstPtr	is a pointer to the XSysMonPsu driver Instance.
SysMonDeviceId	is the XPAR_<SYSMON_instance>_DEVICE_ID value from xparameters.h.
SysMonIntrId	is XPAR_<SYSMON_instance>_INTR value from xparameters_ps.h

Returns

• XST_SUCCESS if the example has completed successfully.
• XST_FAILURE if the example has failed.

Note

This function may never return if no interrupt occurs.

References XSysMonPsu_Config::BaseAddress, XSM_ATR_SUP1_LOWER, XSM_ATR_SUP1_UPPER, XSM_ATR_SUP3_LOWER, XSM_ATR_SUP3_UPPER, XSM_ATR_TEMP_LOWER, XSM_ATR_TEMP_UPPER, XSM_AVG_16_SAMPLES, XSM_CFR_ALM_SUPPLY1_MASK, XSM_CFR_ALM_SUPPLY3_MASK, XSM_CFR_ALM_TEMP_MASK, XSM_CH_SUPPLY1, XSM_CH_SUPPLY3, XSM_CH_TEMP, XSM_MAX_SUPPLY1, XSM_MAX_SUPPLY3, XSM_MAX_TEMP, XSM_MIN_SUPPLY1, XSM_MIN_SUPPLY3, XSM_MIN_TEMP, XSM_SEQ_MODE_CONTINPASS, XSM_SEQ_MODE_SAFE, XSysMonPsu_CfgInitialize(), XSysMonPsu_GetAdcData(), XSysMonPsu_GetAlarmThreshold(), XSysMonPsu_GetMinMaxMeasurement(), XSysMonPsu_IntrClear(), XSysMonPsu_IntrEnable(), XSysMonPsu_IntrGetStatus(), XSysMonPsu_LookupConfig(), XSysMonPsu_RawToTemperature_OnChip, XSysMonPsu_RawToVoltage, XSysMonPsu_SelfTest(), XSysMonPsu_SetAlarmEnables(), XSysMonPsu_SetAlarmThreshold(), XSysMonPsu_SetAvg(), XSysMonPsu_SetSeqAvgEnables(), XSysMonPsu_SetSeqChEnables(), XSysMonPsu_SetSequencerMode(), XSysMonPsu_TemperatureToRaw_OnChip, and XSysMonPsu_VoltageToRaw.

Referenced by main().