Hi Zedboard form! I have a quick question:
I am trying to attach a camera through the FMC LPC port on the zedboard.
In my own project, and in the design project in the avnet document "FMC-IMAGEON Building a Video Design from Scratch Tutorial," I get the same error generating the bitfile. It reads:
"
[Bitgen 342] This design contains pins which have locations (LOC) that are not user-assigned or I/O Standards (IOSTANDARD) that are not user-assigned. This may cause I/O contention or incompatibility with the board power or connectivity affecting performance, signal integrity or in extreme cases cause damage to the device or the components to which it is connected. To prevent this error, it is highly suggested to specify all pin locations and I/O standards to avoid potential contention or conflicts and allow proper bitstream creation. To demote this error to a warning and allow bitstream creation with unspecified I/O location or standards, you may apply the following bitgen switch: -g UnconstrainedPins:Allow
This message applies to the following I/O ports:
fmc_imageon_hdmi_in_0_clk_pin
"
In addition, I also get the critical warning related to that same pin:
"
[Constraints 18-5] Cannot loc instance 'fmc_imageon_hdmi_in_0_clk_pin_BUFGP/BUFG' at site D18, Illegal to place instance fmc_imageon_hdmi_in_0_clk_pin_BUFGP/BUFG on site D18 ["C:/Users/cwilson/Documents/Projects/Zedboard-FMC-IMAGEON/Zed-FMC_IMAGEON/Zed-FMC_IMAGEON.srcs/sources_1/edk/proc_module/data/proc_module.ncf":34]
"
In the UCF for the Project:
NET "fmc_imageon_hdmi_in_0_clk_pin" LOC = "D18"; # HDMII_LLC - FMC1-G2 (CLK1_M2C_p)
NET fmc_imageon_hdmi_in_0_clk_pin TNM_NET = hdmii_clk;
TIMESPEC TS_hdmii_clk = PERIOD hdmii_clk 148500 kHz;
I really have no clue what to do here...Has anyone come across this issue? Did you just demote the error to a warning?
Thanks!
