uPSD being very slow

janek · ‎2005-09-07

Posted on September 07, 2005 at 14:04

janek · ‎2011-05-17

Posted on May 17, 2011 at 12:08

ST did a good job with flash and PLD around 8051, but it is still the same architecture - very slow and C inefficient.

As an example I have the same C source compiled an run on:

1) 8MHz MSP430 using Crossworks compiler

2) 11.0592MHz uPSD3233B using Keil compiler

The execution time for communication task is:

for MSP430 - 25s

for uPSD3233B -240s

Are there any ways (other than increasing clock speed) to make it run with an reasonable efficiency?

(It is not my project, I am helping someone, who wants to stay with the 8051 micro)

Any suggestions will be appreciated.

joseph2399 · ‎2011-05-17

Posted on May 17, 2011 at 12:08

Have a look at the Turbo Series (uPSD33xx and uPSD34xx). Some architectural enhancements have been made that significantly increase performance over the uPSD32xx products.