Rob Bairos Posted November 12, 2017 Report Share Posted November 12, 2017 Hello. Im able to download pre made bitfiles to my Papilio Pro + LogicStart using the bitloader, and DesignLab, however, Im running into a problem trying to create a simple vhdl example from the hamster fpga ebook. Specifically, Im at section 6.4 "Downloading the Design Into the Device." Do I select FPGA or SPI Flash to download to? The screen-shot seems to imply FPGA. At any rate, the Switches_LEDs project fails to operate on the physical board as I expect. Instead when I download to SPI, 3 of the digits show "8" while one is blank. The LEDs are all off, and the switches have no effect. I did make the following changes from the tutorial for the Pro board: I set device to Spartan6 xc6slx9 tqg144 speed -2 And the constraints file is: # Constraints for Papilio Pro NET switch_1 LOC = "P120" | IOSTANDARD=LVTTL; ; #pap1 was switch (6) p3 NET switch_0 LOC = "P121" | IOSTANDARD=LVTTL; #pap1 was switch(7) p4 NET LED_1 LOC = "P133" | IOSTANDARD=LVTTL; #pap1 was led(6) p16 NET LED_0 LOC = "P134" | IOSTANDARD=LVTTL; #pap1 was led(7) p17 Above changes based on pinout chart: http://papilio.cc/index.php?n=Playground.PapilioPinouts Bit stuck for ideas, any help appreciated. Thanks. Quote Link to comment Share on other sites More sharing options...
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