NHD-3.5-320240MF-ATXL#-CTP-1-ND
Hi all
i am using a NHD-3.5-320240MF-ATXL#-CTP-1-ND display, i was able to drive the RGB lines by STM32F746 using the internal LTDC controller, and the touchscreen (I2C) and the external backlight.
Now i have some open points:
1) when i try to drive the SPI 3 wire in order to change RGB contrast nothing happened, the display over the SPI seems unresponsive, both in writing mode and in reading mode.
2) whatever command is sent over the SPI is not executed, even the reset command.
I used to follow the manual instruction for the NV3035C, the actual driver on board of the display.
Someone has some example code with this display (e.g. arduino/ stm32) ? can the code be shared?
Is there a chance that the SPI is disabled internally?
Thanks for your time and answer
Rgrds
C.L.
i am using a NHD-3.5-320240MF-ATXL#-CTP-1-ND display, i was able to drive the RGB lines by STM32F746 using the internal LTDC controller, and the touchscreen (I2C) and the external backlight.
Now i have some open points:
1) when i try to drive the SPI 3 wire in order to change RGB contrast nothing happened, the display over the SPI seems unresponsive, both in writing mode and in reading mode.
2) whatever command is sent over the SPI is not executed, even the reset command.
I used to follow the manual instruction for the NV3035C, the actual driver on board of the display.
Someone has some example code with this display (e.g. arduino/ stm32) ? can the code be shared?
Is there a chance that the SPI is disabled internally?
Thanks for your time and answer
Rgrds
C.L.
0
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From the NV3035C datasheet, it appears that the serial timing diagram on page 32 shows the Vertical Sync line VSD to be high during the Active Low Serial Chip select SPENB.
Please confirm this is performed and let us know if you are able to process the serial commands.
http://www.newhavendisplay.com/app_notes/NV3035C.pdf
Best Regards,0
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