PORTS Forum

Ports and Interfaces => USB => Topic started by: gi on June 06, 2011, 01:25:44 am

Title: Startup.asm for 8051 uC
Post by: gi on June 06, 2011, 01:25:44 am

Hi Jan,
I am a little bit confused about this.
Does startup.asm/.a51 necessary for any firmware code?
Why some of the firmware uses starup.asm?
The keil site state that it clears internal and external data memory, etc, but why I use startup, Am I can't clear it in my firmware C code?
What benefits I can get in using startup.asm, does it affect the speed, code size,etc?
 
BTW, I use Silabs f340 uC.

 thanks and regards
 gi

Title: Re: Startup.asm for 8051 uC
Post by: Jan Axelson on June 06, 2011, 02:28:46 pm

It looks like you got good answers to your question on the Keil forum.

Jan

Title: Re: Startup.asm for 8051 uC
Post by: gi on June 06, 2011, 08:58:45 pm

Yes I got some reply from Keil, thanks Jan.