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Changed MKRGSM1400 variant to increase the reliability #416

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Merged
merged 1 commit into from
Jun 19, 2019
Merged

Changed MKRGSM1400 variant to increase the reliability #416

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17 changes: 17 additions & 0 deletions variants/mkrgsm1400/variant.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -185,6 +185,22 @@ SERCOM sercom5(SERCOM5);
#define PMIC_REG01 0x01
#define PMIC_REG07 0x07

#define PMIC_REG00 0x00

static inline void set_voltage_current_thresholds() {
PERIPH_WIRE.initMasterWIRE(100000);
PERIPH_WIRE.enableWIRE();
pinPeripheral(PIN_WIRE_SDA, g_APinDescription[PIN_WIRE_SDA].ulPinType);
pinPeripheral(PIN_WIRE_SCL, g_APinDescription[PIN_WIRE_SCL].ulPinType);

PERIPH_WIRE.startTransmissionWIRE( PMIC_ADDRESS, WIRE_WRITE_FLAG );
PERIPH_WIRE.sendDataMasterWIRE(PMIC_REG00);
PERIPH_WIRE.sendDataMasterWIRE(0x06); // input voltage limit = 3.88V, input current limit = 2A
PERIPH_WIRE.prepareCommandBitsWire(WIRE_MASTER_ACT_STOP);

PERIPH_WIRE.disableWIRE();
}

static inline void enable_battery_charging() {
PERIPH_WIRE.initMasterWIRE(100000);
PERIPH_WIRE.enableWIRE();
Expand Down Expand Up @@ -230,6 +246,7 @@ void initVariant() {
enable_battery_charging();
}
disable_battery_fet(!batteryPresent);
set_voltage_current_thresholds();
#endif

// put GSM modem in reset on start to conserve power if it's not used
Expand Down