Hi everbody,
I have a promble in developing the LCD driver on DM355. Our board is not the DM355-EVM. And the board is made by us based on the DM355-EVM, supporting for LCD output. The DVSDK version is DVSDK3.10, and the kernel is LINUX2.6.32. Our LCD screen is TFT320240-91-E.
As the document" dm35x Digital Media System-on-Chip Video Processing Back End(VPBE) RG" shows, the 17th bit of PINMUX1 is used for GIO71when it set to 1, and LCD_OE or BRIGHT ( set by LCDOUT.OES), I set the bit to 0, the LCD screen displaying incompletely. However, I set it to 1 ,namely GIO71, the LCD screen displaying completely. In additional , i set the LCDOUT to 0x1. Why only it is set to GIO71, the LCD can work? What's the reason?
Any help will be thank for!