Continue to Site

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.

How long does it take for ARM7 LPC2129 to execute 1 machine cycle?

Status
Not open for further replies.

saidutt

Member level 2
Joined
Dec 4, 2009
Messages
43
Helped
6
Reputation
12
Reaction score
4
Trophy points
1,288
Location
india
Activity points
1,592
hi friends,

i am new to arm7 LPC 2129.
it is a 32-bit micro controller.

where as in 8051,

1 machine cycle is executed in 1 micro second.

so my doubt is

what is the time does ARM 7 takes to execute 1 machine cycle?

if i want to write delay program with out timers in LPC 2129.
so, how many machine cycles should i execute for 1 micro second delay?

please help me out
 

doubt in LPC2129

so, how many machine cycles should i execute for 1 micro second delay?

you would have found the answer by now if you had just experimented with it.
 

Re: doubt in LPC2129

you would have found the answer by now if you had just experimented with it.

thank you for reply.

but PCLK=60M Hz, then T=16n sec.
it means 1Machine cycle <------>16n sec,when VPBDIV=0x01;

if VPBDIV=0x02; then PCLK=30M Hz ----T=8n sec
=> 1Machine cycle <----->8n sec.


is that true?
please help me

thank you

---------- Post added at 07:18 AM ---------- Previous post was at 07:18 AM ----------

you would have found the answer by now if you had just experimented with it.

thank you for reply.

but PCLK=60M Hz, then T=16n sec.
it means 1Machine cycle <------>16n sec,when VPBDIV=0x01;

if VPBDIV=0x02; then PCLK=30M Hz ----T=8n sec
=> 1Machine cycle <----->8n sec.


is that true?
please help me

thank you
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top