In SX Microcontrollers, SX/B Compiler and SX-Key Tool, verobel wrote:

Fellow SXers;

Some questions and code for you to look at...

 

I have been working on the SX/28 and some I2C chips. (So far: 24LC64 memory, DS1621 temp; and now MCP23016 expander) on the PDB board. Display is to a 2 Digit 7 segment LCD using RB and RC outputs. The display, temperature and memory have all been working and my latest addition is the expander chip. I now get compiler warnings & error

 

1) warning 37, pass 2: literal truncated to 8 bits

   line MOV# __PARAM1,#wr23016    ;I2CSEND, wr23016

2) error 43, pass 2: address exceeds memory limit

  .. I have tried commenting out portions of code..eg MEM_IN.. but still fall short

 

 Is item 1 important?

 Does item 2 mean my program is too big...and what to do about it?

 How does the setup code and then EXP_IN, EXP_OUT code look for the MCP23016?

 

 Thanks, John

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