Skip to main content
marvin78
Associate
Nov 26, 2004 3:30 AM UTC
Question

Number of clock cycles

Posted on November 26, 2004 at 04:30

Number of clock cycles

This topic has been closed for replies.

5 replies

marvin78
marvin78Author
Associate
Nov 25, 2004 8:39 AM UTC
Posted on November 25, 2004 at 09:39

I need a list of the instructions with the number of cylces needed to compute that instruction. I couln't find that on the web.

We use: st72321

Where can I get this list?

Regards

Bastian

sjo
Associate III
Nov 25, 2004 9:29 AM UTC
Posted on November 25, 2004 at 10:29

In Visual Debug/Develop goto Help/Help On Instruction menu item.

Each instruction is given a number of cycles required.

This information is also calculated in the simulator, View/ST7 Register have a look at the Time and Instruction counter tabs.

Regards

sjo

jatin
Visitor II
Nov 25, 2004 10:01 AM UTC
Posted on November 25, 2004 at 11:01

Pls download ''ST7 Family Programming Manual'' from the same site.

It explains all instructions and addressing modes etc.

wolfgang2399
Associate III
Nov 25, 2004 10:14 AM UTC
Posted on November 25, 2004 at 11:14

Hi Bastian,

you can take the PDF-file of the

http://mcu.st.com/files/mcu/4020.pdf

There you find a complete description of each ST7 instruction beginning on page 33, including the number of cycles -cy-.

Regards

WoRo

marvin78
marvin78Author
Associate
Nov 26, 2004 3:30 AM UTC
Posted on November 26, 2004 at 04:30

Thanks for that! Now I found what I was searching for.

Regards

Bastian