https://community.nxp.com/t5/S32K/MRCANHUBK344-SSD1306-OLED-Noise-Problem/m-p/1926413#M39016 <P>Hello everyone,</P><P>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.</P><P>I am using a library for the SSD1306 from this GitHub project: <A href="https://github.com/Matiasus/SSD1306/tree/master" target="_new" rel="noreferrer">https://github.com/Matiasus/SSD1306/tree/master</A></P><P>Could you help me to solve this problem?</P><P>I've also attached my OLED screen and project files for reference.<BR /><BR /><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="oled_canhubk344.jpg" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/292208i2C027AECCC73CAF1/image-size/medium?v=v2&amp;px=400" role="button" title="oled_canhubk344.jpg" alt="oled_canhubk344.jpg" /></span></P><P>&nbsp;</P> Tue, 06 Aug 2024 13:28:15 GMT oguzhan1857 2024-08-06T13:28:15Z https://community.nxp.com/t5/S32K/MRCANHUBK344-SSD1306-OLED-Noise-Problem/m-p/1926413#M39016 <P>Hello everyone,</P><P>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.</P><P>I am using a library for the SSD1306 from this GitHub project: <A href="https://github.com/Matiasus/SSD1306/tree/master" target="_new" rel="noreferrer">https://github.com/Matiasus/SSD1306/tree/master</A></P><P>Could you help me to solve this problem?</P><P>I've also attached my OLED screen and project files for reference.<BR /><BR /><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="oled_canhubk344.jpg" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/292208i2C027AECCC73CAF1/image-size/medium?v=v2&amp;px=400" role="button" title="oled_canhubk344.jpg" alt="oled_canhubk344.jpg" /></span></P><P>&nbsp;</P> Tue, 06 Aug 2024 13:28:15 GMT https://community.nxp.com/t5/S32K/MRCANHUBK344-SSD1306-OLED-Noise-Problem/m-p/1926413#M39016 oguzhan1857 2024-08-06T13:28:15Z https://community.nxp.com/t5/S32K/MRCANHUBK344-SSD1306-OLED-Noise-Problem/m-p/1928933#M39171 <P>Hi</P> <P>This is an application issue and as such it is out of scope of our online technical support.&nbsp;</P> <P>The LPI2C0_SCL and&nbsp;LPI2C0_SDA are pullup to&nbsp;P3V3_LDO1 by default, please check the manual of your&nbsp;<SPAN>SSD1306 OLED whether it should be pullup to 5V?&nbsp;It is recommended to use a logic analyzer to capture the I2C data and analyze whether it complies with the SSD1306 manual.</SPAN></P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="MR-CANHUBK344 P4 LPI2C0 P3V3_LDO1.png" style="width: 630px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/292723i210D8AC9F53BA927/image-size/large?v=v2&amp;px=999" role="button" title="MR-CANHUBK344 P4 LPI2C0 P3V3_LDO1.png" alt="MR-CANHUBK344 P4 LPI2C0 P3V3_LDO1.png" /></span></P> <P>Best Regards,<BR />Robin</P> Fri, 09 Aug 2024 07:51:12 GMT https://community.nxp.com/t5/S32K/MRCANHUBK344-SSD1306-OLED-Noise-Problem/m-p/1928933#M39171 Robin_Shen 2024-08-09T07:51:12Z