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Valued Contributor III
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the MAX® CPLD EPM7064 configuration controller

Hi  

 

the altera company provides two types configure methods: epm7064 and epm 7128.I think that the configure programme is different.The two different methods are used in different family device:stratix or cyclone? 

But the niosII stratix kit uses the epm7128 .I want to ask if I can use the epm7064 to configure the stratix family device.Because the NIOS-EVALKIT-1C12 uses the epm7064 and 8M flash. 

 

 

 

Thank you !
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Valued Contributor III
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Hello SUN2004, 

 

If I understand the schematic of the NIOS-EVALKIT-1C12 correctly the CPLD (EPM7064) is not for getting configuration data out of the flash to config the FPGA. The CPLD is used in conjunction with the USB (FTDI) to act like a USB-Blaster Cable. I think there is no possibility to store your configuration data on the board. 

 

BTW: I’m using an EPM3128 as a configuration controller. The MAX3000 series is cheaper than the MAX7000 and has enough features for doing this job. 

 

 

Bye, 

niosIIuser
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Valued Contributor III
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niosIIuser, 

 

You are correct about the CPLD's purpose on the eval board, but actually the 1c12 eval kits have an EPCS serial flash that can be used to store hardware and software.. the boards power-up with a factory design that boots uClinux (and the linux software/file system resides in parallel flash). 

 

SUN2004, 

 

I believe the only reason for one device being larger than the other was because our config controller design was a tight fit on the 7064, and when Stratix came along (larger configuration size, more address pins to drive), we opted to upgrade to the next larger device to avoid any no-fit issues. I may be incorrect on this but that is what I remember.
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Valued Contributor III
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Hello, 

 

I have some idea and say something about CPLD configuration. Please check my idea. 

 

We have CPLD as flash configuration device, so we can download the data(such as user app or OS ) to flash directly from the JTAG on CPLD. Yes?? 

 

If we have no CPLD, we can use uart to download. I do not know Other method to download to flash clearly. 

 

Can some guys give me detailed info about it? And I want to know how many methods can be used to download and the implementation of each. 

 

Thank you. 

 

LiangYi
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Valued Contributor III
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liangyi 

All your idea is Altera remote update feature. IMHO The wery correct way to program flash is to use Nios(II) CPU and special communication program for it to communicate with host PC.
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Valued Contributor III
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Hi MacShiz, 

 

Yes. I know what you said. 

 

Here I mean that If I have no CPLD configuration device, can I download app or OS to flash by using JTAG on FPGA? 

 

Thanks.
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Valued Contributor III
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LiangYi 

It seemd to me when you use Altera Flash Programmer it programms any kind of content to CFI flash wia JTAG without configuration CPLD. It uploads special design to FPGA via JATG also to programm flash.
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