FPGA cyclone4 and EPCS16

The configuration file size depends on the device. Since no Cyclone IV requires 9MBytes (72Mbit), I presume your device is a EP4CE30 or EP4CE40 which require about 9 Mbit.

In which cases, yes, AS+JTAG with an EPCS16 will do just fine.

Maybe.

An EP4C40's configuration stream is over 9Mbit uncompressed. Therefore, an EPCS8 (8 Mbit) is not enough.

However, the FPGA supports compressed configuration streams. Depending on the design, compression may allow the configuration to fit in an EPCS8.

EPCS8 does not exist.

It is EPCS1, 4 , 16, 64 or 128.

Cheers, Ton

Note that if you have any plans to perform field updates of your FPGA configuration you may wish to select an EPCS device that has enough space to support two images.

Jake

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EPCS8 does not exist.

It is EPCS1, 4 , 16, 64 or 128.

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EPCS8 may not exist, but I have had sucsess using an 8 Mbit 3rd party serial flash.

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EPCS8 may not exist, but I have had sucsess using an 8 Mbit 3rd party serial flash.

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Hi Kevin,

I know there are 3rd party 8Mb devices, but never tried one.

I never did, because Altera checks device ID before programming and I supposed that the 8 Mb ID (0x13) wouldn't be supported.

But it is, if I read your post. Could you confirm this? Or did you use a different way to program your device?

Thanks, Ton

Hello friend ,

I am again here...

I m confused somewhat...Actuall i want to load my configuration in EPROM via JTAG interface.And When power up , EPROM configure my Cyclone4.

But as i found two schem AS and AP...

AP-In the AP configuration scheme, Cyclone IV E devices are configured using commodity 16-bit parallel flash memory...AS also support flas memory...

So i dont understand. and How can i make

JTAG->configuration device ->Cyclone 4 interface...

Thank you again....

I´ve not used any C4 part, so I don´t know about AP programming mode.

For AS (but maybe also for AP):

For programming your flash device via JTAG, you have to convert your sof-file to a jic-file (file -> convert programming file). In the programmer, select the jic-file and your flash device can be programmed by JTAG. After programming switch power off and on and your FPGA configuration will be loaded from flash.

Good luck, Ton

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Hi Kevin,

I know there are 3rd party 8Mb devices, but never tried one.

I never did, because Altera checks device ID before programming and I supposed that the 8 Mb ID (0x13) wouldn't be supported.

But it is, if I read your post. Could you confirm this? Or did you use a different way to program your device?

Thanks, Ton

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The 8 Mbit part I have used successfully is the Numonyx M25P80. When I first starting using it, I was able to simply create a JIC file with the device set to EPCS4 to program it without any trouble. However, after upgrading to a newer version of Quaruts (I don't remember which exact version at the moment), this method would fail complaining about the wrong ID (even when you check the ignore ID option). I then found I could convert the JIC file to a JAM file and was able to remove the ID check from the JAM file.

During the initial debugging of all this, I also successfully used an aardvark (http://www.totalphase.com/products/aardvark_i2cspi/) (USB to I2C/SPI adapater) to program the flash.

I also tried an Atmel 8 Mbit part, but the Cyclone III refused to configure from it.