Lpc2000

Correct me if I misunderstood, but it seems that you're compiling in thumb mode in order to obtain a speed gain. This is wrong. Thumb mode will decrease the size of your application but will reduce its performance. Run everything in ARM mode with full optimizations; if this fails, write the ISR in assembler. If this still fails you'll have to use a higher clock speed.

S\ufffdren_Rennecke <rennecke@...> wrote:
Hi,

What possibilities, are there to increase the performance. 
I need to process many instructions at my UART
interrupt-service-routine. So I get problems at higher Baud rates. 
I use the 14,745 MHz quartz, and don\ufffdt want to use the PLL (to save
current); pclk = cclk. 
I compiled the called functions in thumb mode, and optimized the output
with level 3. 
I reached a better performance, but are there other ways to get higher? 

Thanks S\ufffdren




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