Gast
#387996
Servus! Ich habe folgendes Problem. Wenn ich versuche folgendes Design zu synthetisieren bekomme ich Errors (Siehe am ende des Beitrags). Woran liegt es, am Sourcecode oder in der Constraints Spezifikation? Weiß leider im Moment nicht wo ich ansetzen soll, denn bei der Simulation hat es wunderbar geklappt. mfg & Besten Dank im Voraus Thomas
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Timing constraints file: ---------------------------------------------------------------- NET "clock" TNM_NET = "clock"; TIMESPEC "TS_clock" = PERIOD "clock" 50 MHz HIGH 50 %; NET "clock" LOC = "T9"; NET "reset_n" LOC = "L14"; NET "ps2data_i" LOC = "M15"; NET "ps2clock_i" LOC = "M16"; NET "led_o<0>" LOC = "P11"; NET "led_o<1>" LOC = "P12"; NET "led_o<2>" LOC = "N12"; NET "led_o<3>" LOC = "P13"; NET "led_o<4>" LOC = "N14"; NET "led_o<5>" LOC = "L12"; NET "led_o<6>" LOC = "P14"; NET "led_o<7>" LOC = "K12"; NET "led_o<8>" LOC = "R11"; ----------------------------------------------------------------- XILINX XST WARNINGS - ERRORS Checking timing specifications ... WARNING:XdmHelpers:625 - No instances driven from the following signals or pins are valid for inclusion in TNM group "clock". A TNM property on a pin or signal marks only the flip-flops, latches and/or RAMs which are directly or indirectly driven by that pin or signal. signal "clock" WARNING:XdmHelpers:644 - No appropriate elements were found for the TNM group "clock". This group has been removed from the design. ERROR:XdmHelpers:650 - The period specification "TS_clock" is invalid because the "clock" group was removed. Checking expanded design ...