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

i2c bus not work i think ?

I have add the I2C opencores component in SOPC builder, add the logic in quartus and assigned the pins. copiled the kernell en filesystem. i have started the i2cset I get this on my consol...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

It is working !! 

# i2cdetect
Error: No i2c-bus specified!
Syntax: i2cdetect   I2CBUS 
  I2CBUS is an integer
  With -f, scans all addresses (NOT RECOMMENDED)
  With -q, uses only quick write commands for probing (NOT RECOMMENDED)
  With -r, uses only read byte commands for probing (NOT RECOMMENDED)
  If provided, FIRST and LAST limit the probing range.
  i2cdetect -l lists installed busses only
  Installed I2C busses:
    i2c-1       unknown         Opencores i2c 1                         Algorith
m unavailable
    i2c-0       unknown         Opencores i2c 0                         Algorith
m unavailable

I get also pulses on the pins that i assginged.

wehen i run "i2cdetect -f 0" or i2cdetect -f 1"