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  1. ATU100
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Re: clk and data lines

 

Hi Paul,
It should send the initial settings for the OLED and then the startup screen information and then after a short delay the main screen information.
After that, the display only gets updated with changes. Examples:
Short press of the TUNE button should update the display with ¡°RESET¡±.
Long press of the TUNE button should update the display with ¡°TUNE¡±.

For a 128x64 OLED the settings I have used are as follows.


If you have a Rigol or Siglent oscilloscope, it may have the I2C serial decode features and you should be able to check the I2C interface.
The I2C address 0x78 = 0111 1000 in the EEPROM configuration is the value written to the interface (Read/Write bit-0 = 0).


The slave address is the upper 7-bits = 0x3C which is what is shown on the Rigol oscilloscope (see below).






From the code the values on the interface at startup match those seen on the Rigol oscilloscope.



?
73, Dave
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