Touch screen RIIC issue

I am trying to get the touch screen framework working on my custom PCB.  I have tried to set up the framework and drivers in the configurator but so far I am not getting the I2C to work at all.

I have used this same touch screen display on a PCB I made to attach to S7G2 dev kit and it works well.  Now I have it on my actual product PCB.

Results observed with scope:

• On power on I get a reset on the touch chip
• When screen is touched:
  • I get an irq on IRQ7 (P408)
  • I see one negative pulse on SCL and that is all

Code observations:

• in r_riic.c I can breakpoint on riic_open_hw_master and I get to this point
• When I touch the screen I can breakpoint inside "R_RIIC_MasterWrite" so the code is seeing IRQ7 and trying to communicate with the touch chip

Setup:

• Framework g_sf_touch_panel_i2c Touch Panel Framework on sf_touch_panel_i2c
  • Touch Chip = g_sf_touch_panel_i2c_chip_ft5x06  (correct for my touch panel)
  • The rest of the parameters are obvious and set to my display size, etc.
• I2C driver:
  • g_i2c I2C Driver on r_riic
  • All 4 interrupts set to Priority 3
  • Channel = 0
  • Rate = Standard
  • Slave Address = 0x38
  • Address mode = 7-Bit
  • Callback = NULL
• Pin configurator / hardware
  
  • My PCB Hardware = Port 4 pin 00 = SCL0_A, Port 4 pin 07 = SDA0_B
  • Peripherals:
    • RIIC:
      • IIC0_PinOption_B:
        • Operation mode = Enabled
        • SCL0_B = P204
        • SDA0_B = P407
        • PORTS:
          • P407:
            • Mode = Peripheral Mode
            • Pull Up = none
            • Drive Capacity = Medium
            • Output type = n-cn open drain
            • P407: = SDA0_B
• The thread for the display is named hmi_thread
  • In hmi_thread_entry.c just before the while( 1) loop:
    • g_ioport.p_api->pinCfg( IOPORT_PORT_04_PIN_00, (0x00000000 | IOPORT_PERIPHERAL_RIIC | IOPORT_CFG_DRIVE_MID | IOPORT_CFG_NMOS_ENABLE | IOPORT_CFG_PERIPHERAL_PIN | IOPORT_CFG_PULLUP_ENABLE)  );
    • This should set up SCL0_A as the SCL pin associated with RIIC channel 0

I do not understand why I am not getting at least 8 clocks on SCL ???

Any Ideas ???

Thanks,

Steve D