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1

NXP^TM M522XX, KINETIS and i.MX RT / I2C at M52259DEMO

« on: March 26, 2009, 11:15:04 AM »

I am trying to attach an 8574A pio to my 52259DEMO board.
The circuit is built on an hole matrix board and connectect with a flat cable to the I/O port connector. Pin 10 (I2C_SDA1) and Pin 12 ( I2CSCL1)  are pulled up with an 4k7 resistor.
It does not work. I am not sure if my software works and so to keeps things simple I enabled the IIC_INTERFACE in app_hw_m5233xh and TEST_IIC and TEST_DS1307 in application.c (uTasker SP9).
After flashing the board I expected to find Data or Clock signals on pin 10 or 12, but the ports remains silent.

The question is should i find I2C signals at pin 10/12?

Regards Karl

 
   

2

NXP^TM M522XX, KINETIS and i.MX RT / KIRIN3 comment DEMO_UART out

« on: February 20, 2009, 11:47:27 AM »

Hello,

after commenting out #define DEMO_UART  in app_hw_m5223x.h the linker complains

error LNK2019: unresolved external symbol _fnSetNewSerialMode referenced in function _fnComitt_UART   usb_application.obj   uTasker

I want to have fnDebugMsg to go to Telnet which works and to use the UART for communications.   
Therefore in application.c the following lines shoud not be executed (Line 639 to 644) and the Uart kept free for personal use.
 
#if defined SERIAL_INTERFACE && defined DEMO_UART
        if (!fnSetNewSerialMode(FOR_I_O)) {                 
           return;                                                     
        }
        DebugHandle = SerialPortID;                 
#endif

How can I accomplish this?

Regards
Karl