HI, I am trying to interface CLRC632 to a STM32 microcontroller it does not have any RD,WR,AD(address data lines) , so I am using normal GPIOpins for interfacing I am getting the 0x3f response from clrc632 I want to know what should be the values of ALE NRD NCS NRD lines for clrc632 as I am connecting them to normal GPIO lines and can do the values 0/1 and read their values
rupesh
"I want to know what should be the values of ALE NRD NCS NRD lines for clrc632"
The Datasheet for the clrc632 (whatever that might be) should specify this - possibly in the form of a Timing Diagram.
"as I am connecting them to normal GPIO line"
It is completely & absolutely irrelevant to the clrc632 what drives these lines: the only thing that matters is that they are driven to the correct levels in the correct sequence with the correct timing - and those things will be specified in the Datasheet.
is there any difference in connecting a chip to a controllers GPIO pins or connecting them to AD(address data lines ) my processor does not have special RD,WR ,AD lines so I am using normal GPIO pins?
thanks
As always, the Datasheet has the answer to this questions:
The Datasheet will give the specifications for the address/data lines;
The Datasheet will give the specifications for the "normal" GPIO pins.
So, just look at those two sets of definitions and you will see how they differ! You can then decide whether those differences are significant...
None of this has anything to do with Keil!
can you please tell from where I can get help onthis topic how to interface clrc632 with stm32
What do you require that is not in the appropriate Datasheets?
Or do you simply need someone to do this project for you?
In which case, try:
http://www.keil.com/condb/
Or:
www.st.com/.../inchtml-pages-re_consultants.html