Reply To: Expected voltages for U5 chip

#37716
skullknightx
Participant

    Finally on to something here i believe- per the code init error – 2 is related to the operation of U17. Input check for u17 yielded 1.3 volts. operating range per the data sheet should be within the 2.7 to 5 v range. Next steps are to examine trace layouts for u17 and walk back the power input.

    // IT6613 officially supports only 100kHz, but 400kHz seems to work
        I2C_init(I2CA_BASE,ALT_CPU_FREQ,400000);
        //I2C_init(I2C_OPENCORES_1_BASE,ALT_CPU_FREQ,400000);
    
        /* Initialize the character display */
        lcd_init();
    
        if (!ths_init()) {
            printf("Error: could not read from THS7353\n");
            return -2;