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atsam: Support reading chip based temperature sensor on sam4e 

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2020-10-05 11:29:34 -04:00
parent 97d49105b7
commit d9b7891133
1 changed files with 5 additions and 1 deletions
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6
src/atsam/sam4e_afec.c
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@ -11,18 +11,22 @@
#include "sam4e.h" // AFEC0
#include "sched.h" // sched_shutdown
#define ADC_TEMPERATURE_PIN 0xfe
DECL_ENUMERATION("pin", "ADC_TEMPERATURE", ADC_TEMPERATURE_PIN);
static const uint8_t afec_pins[] = {
//remove first channel, since it offsets the channel number: GPIO('A', 8),
GPIO('A', 17), GPIO('A', 18), GPIO('A', 19),
GPIO('A', 20), GPIO('B', 0), GPIO('B', 1), GPIO('C', 13),
GPIO('C', 15), GPIO('C', 12), GPIO('C', 29), GPIO('C', 30),
GPIO('C', 31), GPIO('C', 26), GPIO('C', 27), GPIO('C',0),
ADC_TEMPERATURE_PIN,
// AFEC1
GPIO('B', 2), GPIO('B', 3), GPIO('A', 21), GPIO('A', 22),
GPIO('C', 1), GPIO('C', 2), GPIO('C', 3), GPIO('C', 4),
};
#define AFEC1_START 15 // The first 15 pins are on afec0
#define AFEC1_START 16 // The first 16 pins are on afec0
static inline struct gpio_adc
pin_to_gpio_adc(uint8_t pin)