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I want to write code in order to input 4 BCD numbers using Kit Spartan 3 of Digilentinc. But my code has below errors:
+ some ports in disp_comp.vhd don't appear to assign pin.
+ some ports which I declared code for them (in display.vhd)is warned "UNUSED".
Please help me correct these errors...
Yes, that's all right. I said that one machine cycle is 1 microsecond if we use the 12 MHz crystal. if we use a different crystal, we should look up datasheet (normally, one instruction is calculated on oscillator period = 1/f).
but in FPGA, we only have a delay time range from input to output...
Have you ever written code for the 8051 (or 89C51) microcontroller?
in 8051, if you use Xtal 12MHz, one machine cycle is 1 microsecond. the instructions in the instruction set of the 8051 microcontroller are timing based on the machine cycle. So I use a loop (or timer ) to delay (base on the...
please help me to:
+ understand about SDR architecture.
+ point out an architecture which is using/is developing on the world.
+ applicate into an FPGA board (such as Sparktan 2E/3).
+ take an example code which is written for FPGAs (use Webpack software of Xilinx).
Thanks a lot.
Thank you for your answers.
I use the XC2S200E Sparktan-2E chip of Xilinx. Clock signal is about 50MHz.
I don't know how to relate the system clock signal with my clock signal which I use to write my program.
Please show me to know clearly.