Hi,
I've noticed drivers in RIOT will usually keep a copy of their
configuration parameters in RAM:
typedef struct {
riot_driver_params_t params;
} riot_driver_t;
void riot_driver_setup(riot_driver_t *dev,
const riot_driver_params_t *params)
{
dev->params = *params;
}
Why is it done this way instead of keeping a pointer to the location in
ROM?
typedef struct {
const riot_driver_params_t *params;
} riot_driver_t;
void riot_driver_setup(riot_driver_t *dev,
const riot_driver_params_t *params)
{
dev->params = params;
}
The only reason I can think of is that accessing RAM is faster than
ROM on Flash - or am I missing something?
Best,
Benjamin
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