Hej Andreas,
sorry for the late reply.
On 18.09.2015 11:37, Oleg Hahm wrote:
Hi Andreas,
I've seen when i add the upd module to the hello world example and compile
it for the spark, the code size raises up to 100 kB.
Is there a way to minimize the code size and use the upd module?
for clarification did you try with gnrc_udp on (more or less) current master?
I am wondering how your code-size did explode this much - when I build
the `examples/gnrc_networking` example for the spark core, I end up with
~60K of used ROM (and this includes RPL). Although this does not include
any radio driver, it should leave plenty of memory for a driver and some
application code... Are you using the CC3000 as network interface? And
which driver are you using it with?
I also recognized that some drivers like the uart drivers use floating
point operations, which is horrible for the code size because the ARM
Cortex M3 processor of the spark haven't a floating point unit so the
operations must be simulated by software.
Does exist a fix for that in newer versions?
Very valid point. Just talked to Hauke and there should be fix for that. Stay
tuned.
You are completely right, these were some leftovers from our first
porting attempts to this CPUs... I created fixes for these issues PRs
#3893 to # 3897 [1].
Cheers,
Hauke
[1] https://github.com/RIOT-OS/RIOT/pull/3893
Cheers,
Oleg
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