Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

ARM9 s3c2440 AND fast io

Status
Not open for further replies.

STIO

Newbie level 3
Joined
Sep 26, 2012
Messages
4
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,304
Hello
i have make a dvb-t ts graber with tuner and s3c2440
here have problem with parallel read
tuner i2c is set for signal,...but i have problem with read clk pin here speed is 5mhz ,i need fast GPIO on s3c2440 anyone can how i active this ?
 

anny0498

Junior Member level 1
Joined
Feb 6, 2012
Messages
17
Helped
1
Reputation
2
Reaction score
1
Trophy points
1,283
Activity points
1,366
Hi,

you may get increase CPU speed by changing registers. Have a look at Samsung S3C2440 datasheet page 255 (7-21), the onboard quartz is a 12MHz one.
It should be possible to set clock speed at 532MHz with a 12MHz input quartz by setting MDIV to 0x7D, PDIV=1 and SDIV=1.

Cheers
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top