Allows you to specify operating parameters pertaining to junction temperature, cooling solution, and circuit board thermal model. The following settings are available:
- Specify junction temperature— Allows you to specify a junction temperature in degrees Celsius. The specified junction temperature must be within the range specified in Junction temperature range.
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Keyword:POWER_AUTO_COMPUTE_TJ Settings:on | off *default Keyword:POWER_tj_value Settings: < temperature in degrees Celsius > default = 25 |
- Auto compute junction temperature using cooling solution— Directs the Quartus® Prime Standard Edition software to calculate junction temperature based on a cooling solution.
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Keyword:POWER_AUTO_COMPUTE_TJ Settings:on | off *default |
- Ambient temperature— If you selected Auto compute junction temperature using cooling solution, allows you to specify an ambient temperature in degrees Celsius.
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Keyword:POWER_use_ta_value Settings: < temperature in degrees Celsius > default = 25 |
Junction temperature and cooling solution settings for PowerPlay power analysis are used by the PowerPlay Power Analyzer. These settings do not affect timing analysis.
If a specified ambient or junction temperature is above the allowable junction temperature range for the device, a warning message appears and the Quartus® Prime Standard Edition software uses the maximum allowable temperature in power analysis; if a specified ambient or junction temperature is below the allowable junction temperature range for the device, a warning message appears and the Quartus® Prime Standard Edition software uses the minimum allowable temperature in power analysis.
If a specified ambient or junction temperature is outside the user-specified junction temperature range, but within the allowable junction temperature range for the device, the Quartus® Prime Standard Edition software uses the specified temperature and a warning appears in the Messages window informing you that the specified temperature is outside the range you specified in Junction temperature range.