diff options
Diffstat (limited to 'fpga/usrp2/top/E1x0/timing.ucf')
| -rw-r--r-- | fpga/usrp2/top/E1x0/timing.ucf | 26 |
1 files changed, 11 insertions, 15 deletions
diff --git a/fpga/usrp2/top/E1x0/timing.ucf b/fpga/usrp2/top/E1x0/timing.ucf index 47c250c2f..7d3d9e090 100644 --- a/fpga/usrp2/top/E1x0/timing.ucf +++ b/fpga/usrp2/top/E1x0/timing.ucf @@ -3,25 +3,21 @@ NET "CLK_FPGA_P" TNM_NET = "CLK_FPGA_P"; TIMESPEC "TS_clk_fpga_p" = PERIOD "CLK_FPGA_P" 15625 ps HIGH 50 %; NET "EM_CLK" TNM_NET = "EM_CLK"; -TIMESPEC "TS_em_clk" = PERIOD "EM_CLK" 12048 ps HIGH 50 %; +TIMESPEC "TS_em_clk" = PERIOD "EM_CLK" 18867 ps HIGH 50 %; #constrain GPMC IO -NET "EM_D<*>" MAXDELAY = 5.5 ns; -NET "EM_A<*>" MAXDELAY = 5.5 ns; -NET "EM_NBE<*>" MAXDELAY = 5.5 ns; -NET "EM_NCS4" MAXDELAY = 5.5 ns; -NET "EM_NCS6" MAXDELAY = 5.5 ns; -NET "EM_NWE" MAXDELAY = 5.5 ns; -NET "EM_NOE" MAXDELAY = 5.5 ns; +INST "EM_D<*>" TNM = gpmc_net_out; +INST "EM_D<*>" TNM = gpmc_net; +INST "EM_A<*>" TNM = gpmc_net; +INST "EM_NCS4" TNM = gpmc_net; +INST "EM_NCS6" TNM = gpmc_net; +INST "EM_NWE" TNM = gpmc_net; +INST "EM_NOE" TNM = gpmc_net; + +TIMEGRP "gpmc_net" OFFSET = IN 6 ns VALID 12 ns BEFORE "EM_CLK" FALLING; +TIMEGRP "gpmc_net_out" OFFSET = OUT 14 ns AFTER "EM_CLK" RISING; //2 clock cyc per read #constrain interrupt lines NET "overo_gpio144" MAXDELAY = 5.5 ns; #have space NET "overo_gpio146" MAXDELAY = 5.5 ns; #have data NET "overo_gpio147" MAXDELAY = 5.5 ns; #have msg/aux spi miso - -#NET "adc_a<*>" TNM_NET = ADC_DATA_GRP; -#NET "adc_b<*>" TNM_NET = ADC_DATA_GRP; -#TIMEGRP "ADC_DATA_GRP" OFFSET = IN 1 ns VALID 5 ns BEFORE "clk_fpga_p" RISING; - -#NET "adc_a<*>" OFFSET = IN 1 ns VALID 5 ns BEFORE "clk_fpga_p" RISING; -#NET "adc_b<*>" OFFSET = IN 1 ns VALID 5 ns BEFORE "clk_fpga_p" RISING; |