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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 "sam4e.h" // AFEC0
#include "sched.h" // sched_shutdown #include "sched.h" // sched_shutdown
#define ADC_TEMPERATURE_PIN 0xfe
DECL_ENUMERATION("pin", "ADC_TEMPERATURE", ADC_TEMPERATURE_PIN);
static const uint8_t afec_pins[] = { static const uint8_t afec_pins[] = {
//remove first channel, since it offsets the channel number: GPIO('A', 8), //remove first channel, since it offsets the channel number: GPIO('A', 8),
GPIO('A', 17), GPIO('A', 18), GPIO('A', 19), GPIO('A', 17), GPIO('A', 18), GPIO('A', 19),
GPIO('A', 20), GPIO('B', 0), GPIO('B', 1), GPIO('C', 13), 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', 15), GPIO('C', 12), GPIO('C', 29), GPIO('C', 30),
GPIO('C', 31), GPIO('C', 26), GPIO('C', 27), GPIO('C',0), GPIO('C', 31), GPIO('C', 26), GPIO('C', 27), GPIO('C',0),
ADC_TEMPERATURE_PIN,
// AFEC1 // AFEC1
GPIO('B', 2), GPIO('B', 3), GPIO('A', 21), GPIO('A', 22), GPIO('B', 2), GPIO('B', 3), GPIO('A', 21), GPIO('A', 22),
GPIO('C', 1), GPIO('C', 2), GPIO('C', 3), GPIO('C', 4), 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 static inline struct gpio_adc
pin_to_gpio_adc(uint8_t pin) pin_to_gpio_adc(uint8_t pin)