Replace Shiftout with spi

[Pedro Santos]

Hello

I want to replace this instruction
Shiftout sdata , sclk ,MSBFIRST, [Lcd_out]
to the spi comunication
I have never use spi comunication, can anyone help me, a sample code perhaps

thanks in advance

Pedro

[mister_e]

euh.. SHIFTOUT is already SPI!

Give us more details!

[Ron Marcus]

euh.. SHIFTOUT is already SPI!

Give us more details!

I believe Pedro means hardware SPI. With that assumption, it would be good to know which processor you are working with Pedro. Shiftout/in works very well and it's easy(Thanks Melabs!) buuuuut... It can be slow. How fast do you need to go?

Ron

[Pedro Santos]

Hi Ron

Yes, i mean the hardware SPI
Like You say the Shifout work very good but it is slow, i need to send a byte
quickly to a lcd and perhaps with the hardware SPI pin can i have more speed
The controller that i use is PIC 18F452

Have You a sample code to do that, don't forget it must sent the MSBFIRST

Thanks

Regards

Pedro

[Darrel Taylor]

Pedro,

There's a sample SPI program on the meLabs website.

http://www.melabs.com/resources/samples.htm

Look for spimast.bas

HTH,

[Pedro Santos]

Hi

Yes i see the sample on melabs site but don't understand how to sent
with the spi out pin the msbit first, say bit7, bit6, bit5, ... bit0

Thanks for help
Pedro