Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
19 years ago

SPI RX problems

Hi I am trying to receive data via SPI on the Nios II using a Cyclone II. The Nios is the slave and the SPI master transmits data at 2MHz. I have tested transmitting data from the Nios ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Explicit comparisons like that can cause compilers to generate extra instructions. Comparisons against zero (as below) are ok: 

if ((foo & FOO_BIT) != 0)
but need extra parenthesis.