MRCANHUBK344 SSD1306 OLED Noise Problem

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MRCANHUBK344 SSD1306 OLED Noise Problem

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oguzhan1857
Contributor II

Hello everyone,

I am currently working with the MRCANHUBK344 and a 128x32 SSD1306 OLED display running at 5V, as it is connected to P4. I've encountered a problem with noise on the display, where random pixels light up constantly even when the buffer is empty at the beginning.

I am using a library for the SSD1306 from this GitHub project: https://github.com/Matiasus/SSD1306/tree/master

Could you help me to solve this problem?

I've also attached my OLED screen and project files for reference.

oled_canhubk344.jpg

 

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Robin_Shen
NXP TechSupport
NXP TechSupport

Hi

This is an application issue and as such it is out of scope of our online technical support. 

The LPI2C0_SCL and LPI2C0_SDA are pullup to P3V3_LDO1 by default, please check the manual of your SSD1306 OLED whether it should be pullup to 5V? It is recommended to use a logic analyzer to capture the I2C data and analyze whether it complies with the SSD1306 manual.

MR-CANHUBK344 P4 LPI2C0 P3V3_LDO1.png

Best Regards,
Robin

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