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Altera_Forum's avatar
Altera_Forum
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13 years ago

Cyclone III -- IO port in VHDL help

I'm writing a small code to simulate the I2C. In VHDL, the "sda_io" is defined as an IO port. I thought this simple statement should work: sda_io <= '0' when drive_sda = '1' else (other => '...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

if sda_io is a std_logic, I think you meant:

sda_io <= '0' when drive_sda = '1' else 'Z';

first of all, the keyword is "others" not other, and you cannot use others on a non-array signal.