Dear Ilias, without looking into this in any detail: are you sure you have included "periph/adc.h"?
Cheers,
Oleg
On Wed, Feb 24, 2016 at 04:19:19PM +0100, Ilias Seitanidis wrote:
> Dear all ,
> I want to test adc with R21 board, something already done by many people.
> The repository I use is [1].
> After having tried almost all adc examples I get the following output.
>
> /home/RIOT/examples/gnrc_networking/sensor.c: In function 'r21_sensor_init':
> /home/RIOT/examples/gnrc_networking/sensor.c:6:5: error: implicit
> declaration of function 'adc_init' [-Werror=implicit-function-declaration]
> if (adc_init(ADC_NUM, RES) == 0) {
> ^
> In file included from /home/RIOT/examples/gnrc_networking/sensor.c:1:0:
> /home/RIOT/examples/gnrc_networking/sensor.h:14:25: error: 'ADC_RES_12BIT'
> undeclared (first use in this function)
> #define RES ADC_RES_12BIT
> ^
> /home/RIOT/examples/gnrc_networking/sensor.c:6:27: note: in expansion of
> macro 'RES'
> if (adc_init(ADC_NUM, RES) == 0) {
> ^
> /home/RIOT/examples/gnrc_networking/sensor.h:14:25: note: each undeclared
> identifier is reported only once for each function it appears in
> #define RES ADC_RES_12BIT
> ^
> /home/RIOT/examples/gnrc_networking/sensor.c:6:27: note: in expansion of
> macro 'RES'
> if (adc_init(ADC_NUM, RES) == 0) {
> ^
> /home/RIOT/examples/gnrc_networking/sensor.c: In function 'r21_getValue':
> /home/RIOT/examples/gnrc_networking/sensor.c:18:5: error: implicit
> declaration of function 'adc_sample' [-Werror=implicit-function-declaration]
> *value = adc_sample(ADC_NUM, ADC_CH);
> ^
> cc1: all warnings being treated as errors
> make[1]: ***
> [/home/RIOT/examples/gnrc_networking/bin/samr21-xpro/gnrc_networking/sensor.o]
> Error 1
> make: *** [all] Error 2
>
>
> I attach my last configuration (Its from watr.li project ).
> Thank you in advance!
> Your Faithfully,
> Ilias
> [1] https://github.com/kaspar030/RIOT/tree/ethos_br_hack
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