Reg AN427 Example Design on Quartus 9 WE

Ok. I tried creating a similar design with same settings & synthesised after assigning pins. When running Analysis & Synthesis i got warnings:

Warning: Assertion warning: Ignoring parameter INDATA_ACLR_A that uses input register with clear signal -- RAM block for device family Cyclone III of altsyncram megafunction cannot use input registers with clear signals

Warning: Assertion warning: Ignoring parameter WRCONTROL_ACLR_A that uses input register with clear signal -- RAM block for device family Cyclone III of altsyncram megafunction cannot use input registers with clear signals

And while running I/O Assignment Analysis, i get errors:

Error: Can't place multiple pins assigned to pin location Pin_F4 (IOPAD_X0_Y65_N21)

Info: Pin BITEC_DVI_IO_OUT_DVI_ISEL is assigned to pin location Pin_F4 (IOPAD_X0_Y65_N21)

Info: Pin ~ALTERA_ASDO_DATA1~ is assigned to pin location Pin_F4 (IOPAD_X0_Y65_N21)

Error: Can't place multiple pins assigned to pin location Pin_E2 (IOPAD_X0_Y61_N14)

Info: Pin BITEC_DVI_IO_OUT_DVI_DAT is assigned to pin location Pin_E2 (IOPAD_X0_Y61_N14)

Info: Pin ~ALTERA_FLASH_nCE_nCSO~ is assigned to pin location Pin_E2 (IOPAD_X0_Y61_N14)

Please help me.

The first two warnings are assigned to particular RAM instances in your design. Check, why these instances apparently have settings, that are incompatible with Cyclone III. A warning doesn't prevent synthesis, so may simply ignore it.

The two errors are causes by your FPGA device options settings. You must specify the configuration pins as regular I/O after configuration.

Thank you FvM!

Sorry for the dalayed reply. I changed the FPGA configuration pin settings to regular I/O and was able to fit the design.

The fitter shows Critical Warning: PLL clock inst|....|pll1|clk[1] not driven by a dedicated clock pin or neighboring PLL source. To ensure minimum jitter on memory interface clock outputs, the PLL clock source should be a dedicated PLL input clock pin or an output of the neighboring PLL.

& warnings like: *alt_vip_IS2Vid:*|is_serial_output

[*] could not be matched with a keeper. (filter problem-mismatch)

After simulating altpll in Modelsim, the transcript msg reads

Note: Cyclone III PLL locked to incoming clock

I'm not familiar with pll & VIP suite and learning it. Kindly guide me.

How do I set configuration pins?? I have the same kind of error message. ~ALTERA_ASDO_DATA1~ doesn't appear in my pin planner or assignment editor...

Info: Pin da[0] is assigned to pin location Pin_F4 (IOPAD_X0_Y65_N21)

Info: Pin ~ALTERA_ASDO_DATA1~ is assigned to pin location Pin_F4(IOPAD_X0_Y65_N21)

I'm using the cyclone III 3C120 dev. kit.

HI freelancer,

on tab "Assignments" click on "Device". Next click on "Device and Pin Options...". On the opening window choose "Dual-Purpose Pins".

Here you can set the state of them.