2011/3/27 mattschinkel <[email protected]> > > > MSSP2 will require a separate SPI library, or a constant in the > > > current lib to choose between 1 and 2. > > > > OK. I guess this is the same for serial hardware with RX1/TX2 and > RX2/TX2. > > Preprocessor to the rescue ? > > Someday we all need to decide on either using the same library twice, > or create a 2nd library. A preprocessor doesn't seem like the right > solution. Again, pointers would be nice. > >
I even do need it now. Not only to decide which module, registers, i need to use seperate ports for two different devices simultaneously. My need for now is to select different two similar (better equivalent) i2c devices. I use software I2C, my work is to be easier in this way, but it isn't. Or i haven't enough knowledge about JAL. .......................... ..... var byte I2C_PortIndex = 1 ............................. --- //============================================================================== --- //Initializes the ports for I2C interface --- //============================================================================== procedure i2c_initialize() is --- //============================================================================== if (I2C_PortIndex == 1) then i2c_SHT21_sda_direction = low; // Set port as output for configuration i2c_SHT21_scl_direction = low; // Set port as output for configuration i2c_SHT21_sda = low; // Set SDA level as low for output mode i2c_SHT21_scl = low; // Set SCL level as low for output mode i2c_SHT21_sda_direction = high; // I2C-bus idle mode SDA released (input) i2c_SHT21_scl_direction = high; // I2C-bus idle mode SCL released (input) end if if ( I2C_PortIndex == 2 ) then i2c_SHT21_sda_direction_2 = low; // Set port as output for configuration i2c_SHT21_scl_direction_2 = low; // Set port as output for configuration i2c_SHT21_sda_2 = low; // Set SDA level as low for output mode i2c_SHT21_scl_2 = low; // Set SCL level as low for output mode i2c_SHT21_sda_direction_2 = high; // I2C-bus idle mode SDA released (input) i2c_SHT21_scl_direction_2 = high; // I2C-bus idle mode SCL released (input) end if end procedure ..... .... This is only the shortest procedure. This perspective is not tested OK yet, but i haven't be able to find another way. And all procedures are multiplied like this by the sensor count (and also the code size is multiplied). If i could be able to dynamically change the alias to point another register, this would never be a problem. > Maybe you can ask William if you can add a optional constant for > choosing what SPI port to use (after you test with ENC28J60 of > course). > > Matt. > > -- > You received this message because you are subscribed to the Google Groups > "jallib" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/jallib?hl=en. > > -- *Serdar KIZILTOPRAK Intelligence **Technology Systems [email protected] http://www.its3k.com +90(216) 518 15 00* ** -- You received this message because you are subscribed to the Google Groups "jallib" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/jallib?hl=en.
