AnyBody Have 74595.C

NeoMatrix · Joined: 03 May 2005 Posts: 23

hello 2 everyone

is anybody have 74595.c i downloaded the ccs demo version i not find this 74595.c if anybedy have can mail me plssss

mdaslam23@hotmail.com

thank you

PCM programmer · Joined: 06 Sep 2003 Posts: 21708

Did you try doing a web search with Google ? You should.

NeoMatrix · Joined: 03 May 2005 Posts: 23

i not searched b4 now i searched google i found that

thanks once again

as i want to design the 5 of 5x7 matrix i searched this forms i found various code but not find any schematic that i can understand i tried alot but not get good luck if u know can u tell me plsss

thanks once again

waiting for ur reply

NeoMatrix · Joined: 03 May 2005 Posts: 23

hello

can u tell me is 74164 and 74165 is the same can i use 164 instead of 165 i not find here 165 i have only 164

thanks once again

NeoMatrix · Joined: 03 May 2005 Posts: 23

can any bedy have this header file i not able to find

rwyoung · Joined: 12 Nov 2003 Posts: 563 Location: Lawrence, KS USA

The 74164 is a serial-in-parallel out shift register.

The 74165 is a parallel-in-serial out shift register.

Definately not the same part.

Go to www.ti.com, search for 74LS164 and 74LS165 (or HC or HCT or what ever other logic family is appropriate for your design) and read the data sheets.

Writing your own code to interface with these chips. Each is basically a for() loop and some shifting.
_________________
Rob Young
The Screw-Up Fairy may just visit you but he has crashed on my couch for the last month!

NeoMatrix · Joined: 03 May 2005 Posts: 23

hello

thank for ur help i don't no much about those chips i see some moving message code using 164 and 595 so i was interested to build moving message of 5 5x7 dot matrix leds when i try to compile its asking 74595.c not exixsts

thank you

rwyoung · Joined: 12 Nov 2003 Posts: 563 Location: Lawrence, KS USA

As a follow up, the 74x595 is also a serial-in-parallel-out shift register but it differs from the 74x164 in that the 74x595 has output registers so that all outputs can change simultaneously.

Also the 74x595 may have the ability to tri-state (hi-z) its output drivers. Can't remember, that is what datasheets are good for... Cool

_________________
Rob Young
The Screw-Up Fairy may just visit you but he has crashed on my couch for the last month!

NeoMatrix · Joined: 03 May 2005 Posts: 23

Hello rwyoung

i have the datasheet and downloaded the 74595.c i want to design the moving message of 2 5x7 bu using pic16f84a i will connect 74595 to porta for columns and for rows portb but i don't no how to write the code in ccsinfo i can't able to write the code of this chip as its demo version so i am trying to write in microbasic if i will get schematic and code of ccs then i can covert into microbasic so that i can understand much about 74595 hope u understand

thanks for ur reply

NeoMatrix · Joined: 03 May 2005 Posts: 23

hello everyone

this is the schematic i made but i cab't able to write the code by using pic16f628 i have the header file of this pic i will try tomake this is the link of this schematic i just got this schematic in one site but there is no code so i am trying to design this is anybedy help me i am very thank ful if anybedy have this header files kindly can u send me pls

mdaslamknl@yahoo.com

http://www.geocities.com/neomatrix80/Embeded/prjschem.jpg

thank you very much

dyeatman · Joined: 06 Sep 2003 Posts: 1933 Location: Norman, OK

NeoMatrix,
The CCS header files are copyright CCS and no one is allowed to post them in ths board or email them to ANYONE so please quit asking. As was told to you earlier having the header file will do you no good anyway. Specific chip support is built into the compiler and it will not work just having the header file. Your only choice is to build using the chips supported by the demo version.

There is a Big Gotcha in the demo!! Code size is limited in the demo (2K max) and it is unlikely you can build the kind of project you have in mind within the limits of the CCS demo even if you use a supported chip. Therefore, if you cant afford the CCS compiler (which is understandable for a hobby project) then I would strongly suggest trying to use another compiler.

There are quite a few very low cost and free PIC compilers (CC5X, C2C, PICBASIC etc.) out there that should do what you want.

Good Luck!

NeoMatrix · Joined: 03 May 2005 Posts: 23

Hello dyeatman

i know what ur telling and i understand but previously i got worked in demo version and its was working perfectly in all chips as i formatted my system i lost that one so i am trying to get help again may be now this time nobedy is there no probs i will try my best and i am sure i will get coz in demo version they even don't give 74595.c right but i tried my best and found that its working so the same i will get that also is nothing wrong to try tyr untill i get nothin is impossible just try

by the way thanks for ur info

best of luck for me....