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Altera_Forum's avatar
Altera_Forum
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17 years ago

keep program after powerdown

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?
Altera_Forum's avatar
Altera_Forum
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17 years ago

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