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yianchr11
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2 years ago

Arria V DDR3 EMIF toolkit "Unable to establish a connection..."

Hello, I have been trying to debug a DDR3 memory connected to an Arria V 5AGXMA3D4F27I3 device with Quartus prime standard 18.1.0, 18.1.1, 21.1.2 with no success. Using the "DDR3 SDRAM Controller wi...
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yianchr11's avatar
yianchr11
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2 years ago

Hi Adzim,

I've turned off on-chip debug port and it was able to create memory interface connection, but in either case the calibration status fails at DQS group 0. I've checked with the signal tap analyzer as well and local_cal_fail is high and local_cal_success and local_init done are low. Also the global_reset_n, soft_reset_n and afi_reset_n are high, but mem_reset_n is low. I've attached some screenshots that show this.

I've also tried to use USB-Blaster II with 6MHz and there was no difference.

Regards,

Yiannis