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Enable RTC backup battery charging #13

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Merged
merged 1 commit into from
Dec 3, 2025
+10 −0
Merged

Enable RTC backup battery charging #13

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1 change: 1 addition & 0 deletions src/M5StamPLC.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -233,6 +233,7 @@ void M5_STAMPLC::rx8130_init()
if (!RX8130.begin()) {
ESP_LOGE(TAG, "rx8130 init failed!");
} else {
RX8130.initBat();
RX8130.disableIrq();
RX8130.clearIrqFlags();
}
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8 changes: 8 additions & 0 deletions src/utils/rx8130/rx8130.cpp
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Expand Up @@ -81,6 +81,14 @@ bool RX8130_Class::begin()
return result;
}

void RX8130_Class::initBat()
{
uint8_t data = readRegister8(RX8130_REG_CTRL1);
// Enable backup battery charging
data |= 0b00110000;
writeRegister8(RX8130_REG_CTRL1, data);
}

void RX8130_Class::setTime(struct tm *time)
{
uint8_t rbuf = 0;
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1 change: 1 addition & 0 deletions src/utils/rx8130/rx8130.h
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Expand Up @@ -18,6 +18,7 @@ class RX8130_Class : public m5::I2C_Device {

bool begin();

void initBat();
void setTime(struct tm *time);
void getTime(struct tm *time);
void clearIrqFlags();
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