revolt
Full Member level 2
Hi,
I designed a little CPLD board (xc9536) and now I want to check if everything is fine. So I started to try to toggle pins. That were the trouble began. I use Xilinx Webpack 7.1i / VHDL and want to assign the pins Vccio or Gnd, like this
LED0<='0';
LED1<='1';
But the both pins have a high level. When I use another pin as input and do this:
LED0<=Button;
LED1<=not Button;
the voltage at the LED0/1 pins is correct.
Has somebody made the same experiences?
regards revolt
I designed a little CPLD board (xc9536) and now I want to check if everything is fine. So I started to try to toggle pins. That were the trouble began. I use Xilinx Webpack 7.1i / VHDL and want to assign the pins Vccio or Gnd, like this
LED0<='0';
LED1<='1';
But the both pins have a high level. When I use another pin as input and do this:
LED0<=Button;
LED1<=not Button;
the voltage at the LED0/1 pins is correct.
Has somebody made the same experiences?
regards revolt