hi,


The problem may be not in timings of signals but in durations of commands` execution. For example, next code:

send(0x36); //p1 EXTERNAL CG ROM,M2=16PIXELS 
send(0x87); //p2 FX 8 PIXEL 
send(0x0F); //p3 FY 16 PIXEL 
send(0x27); //p4 Characters per row [c/r] = 320/8 = 40 
send(0x2F); //p5 total add range per line [TS/R]=40+8=48, TS/R = 47 
send(0x0EF); //P6 display lines (L/F)** 
send(0x28); //P7 AP 40 adresses horizontal 
send(0x00); //P8 APL

Did you verifyed with datasheet that it does not require a delay/pause between sending each command of this sequence? Do all these commands execute so fast?
I have worked with many LCD and know that some of them require 1000 microseconds and more to execute some commands. I do not see any delay between sending of commands in sequences of your program like posted above.
For test purposes I suggest you to insert a long enough delay at begin or end of send() function to see the reason.

Regards,
Oleg