Quantcast
Channel: Processors forum - Recent Threads
Viewing all articles
Browse latest Browse all 17527

OMAPL138 EMIFA LCD INTERFACE

$
0
0

Hi sir,

          I am trying to interface OMAPL138  EMIF A bus to Winstar 12864f LCD directly, My connections of LCD with EMIF is as follows, I am using cs2 for interfacing.

                            EMIF A                                      LCD

---------------------------------------------------------------------------------------------

                            cs2                  ->                       cs(active low)

                           EMA_4             ->                        Command/Data

                           EMA_WE        ->                            Write(active low)

                          EMA_(D7:D0)   ->                           D7:D0

when i write the data to emif bus cs2 space, i am properly getting the pulses in all control and data pins of EMIF, but in LCD i cannot see any data displayed, but when i access the LCD using GPIO pins and write data to it,  it is displaying the data to be written, but when interfaced with EMIF A, nothing get displayed in LCD. I have few doubts like

1. whether EMIF A bus supports interfacing LCD directly.

2. Whether i have to increase /decrease the READ/WRITE setup, strobe and hold width.

Kindly help me in this issue

Regards

Balakrishnan.C


Viewing all articles
Browse latest Browse all 17527

Trending Articles