Forum Discussion
Altera_Forum
Honored Contributor
18 years ago --- Quote Start --- I tried "pre-setting" this port, in vhdl: foo: std_logic := '1', & it still didnt fix it. shouldnt it have? --- Quote End --- All internal registers (registers not in I/O cells) power up low and cannot be made to power up high. Synthesis might make a register appear to initialize high by inverting the register input and output. I don't know whether synthesis should do that in your case. There are synthesis warnings (might be Info messages) about power-up don't care. They probably relate to this situation. See whether you have warnings about that.