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PLamb3
Beginner
1,077 Views

Quartus Programmer is extremely slow; takes 3 hours to program a 16Mbit serial PROM device. Any ideas what is causing this?

I'm using Quartus Prime Standard 18.1 and trying to program a serial PROM device SST25VF016 in Active Serial mode. Programming cycle succeeds but is extremely slow, takes more than 3 hours for 16Mbit. Any ideas?

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3 Replies
ShafiqY_Intel
Employee
159 Views

Hi,

 

May I know which Intel FPGA device you are using?

PLamb3
Beginner
159 Views

I'm using a EP4CE55F23C8.

Abe
Valued Contributor II
159 Views

You're using a SPI Serial NOR Flash from Microchip for configuring a Cyclone IV FPGA via AS mode. The SPI Flash device has a HOLD# signal. Can you probe the HOLD# signal and find out if this signal is being held low for long period of time. If this HOLD# signal is kept low , it would temporarily stop/halt the serial data transfer. Where have you connected this HOLD# signal on the board/FPGA?

 

Also check the status of the WP# signal. This should not be low during configuration

 

The device can work at 25MHz as well as 80MHz. Make sure you are operating it at 25MHz. If its still slow, try reducing this clock frequency to 10MHz/6MHz and see if configuration happens faster.

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