Programmable Devices
CPLDs, FPGAs, SoC FPGAs, Configuration, and Transceivers
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keep program after powerdown

Altera_Forum
Honored Contributor II
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How do I keep the same program loaded in a CPLD after a power down without having to reconfigure. 

Do I need to use a configuration EPROM such as an EPC1? If so, how do I program an EPC1?
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Altera_Forum
Honored Contributor II
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Hi, 

Are you referring to CPLD's i.e. Altera MAX devices or FPGA's (Stratix, Cyclone etc)? 

 

CPLD's maintain their configuration during power off and do not require a config device.  

 

FPGAs are SRAM based and need a Config device. Different families and size of devices require different config devices so look at the literature for the parts you are interested in. 

 

Config devices can be programmed in-situ with a JTAG cable to your PC or via s/w running on a control processor on your design. 

 

All the answers are here... 

 

http://www.altera.com/support/devices/configuration/cfg-index.html 

 

Good luck
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Altera_Forum
Honored Contributor II
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I am using a Flex 10K device, I know how to hook up the EPC1 to the Flex 10k but I don`t know how to program the EPC1.

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