Hi All
I We are trying to use both LCD Enables on LIDD LCD controller on OMAP-L138
We are using character LCD in 8 bit mode. So far we just succeeded to show characters only on second display and our efforts to use first "Enable" shows nothing!
According to the sprufm0b document Table-3 , we used LCD_MCLK for Enable on first display and LCD_PCLK for Enable on second display. (LIDD_CTRL[2:0]=100)
There is also a mismatch on Table 1 and Table 3 in sprufm0b document as listed below:
| Signal | Description on Table 1 | Description on Table 3 (Character Display) |
| LCD_PCLK | LIDD character: not used | Enable Strobe (first display) |
| LCD_MCLK | LIDD character: Secondary enable strobe | Enable Strobe (second display optional) |
| LCD_AC_ENB_CS | LIDD character: Primary enable strobe | Not Used |
Is there anything needed to be modified?
LCD_RASTER_CTRL &= 0xfffffffe; // Turn raster controller off LCD_LIDD_CTRL = 0x0000000C; // LIDD mode 0x4 LCD_LCD_STAT = 0x000003ff; // Clear status bits LCD_LCD_CTRL = 0x00002500; // PCLK = 150MHz / 37 = 4.054 MHz, LIDD mode LCD_LIDD_CS0_CONF = 0xF7DCE3BA;
