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Merged
lovyan03 merged 1 commit into from
Aug 17, 2026
Merged

Report M5IOE1 PWM frequency write results #322

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4 changes: 2 additions & 2 deletions src/utility/M5IOE1_Class.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -109,10 +109,10 @@ namespace m5
return true;
}

void M5IOE1_Class::setPwmFrequency(std::uint16_t frequency)
bool M5IOE1_Class::setPwmFrequency(std::uint16_t frequency)
{
std::uint8_t data[2] = { static_cast<std::uint8_t>(frequency & 0xFF), static_cast<std::uint8_t>(frequency >> 8) };
writeRegister(M5IOE1_REG_PWM_FREQ_L, data, sizeof(data));
return writeRegister(M5IOE1_REG_PWM_FREQ_L, data, sizeof(data));
}

bool M5IOE1_Class::setPwmDutyPercent(pwm_channel_t channel, std::uint32_t duty,
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5 changes: 4 additions & 1 deletion src/utility/M5IOE1_Class.hpp
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Expand Up @@ -58,7 +58,10 @@ namespace m5
bool digitalRead(uint8_t pin) override;
bool getInputLevel(uint8_t pin, bool* level) override;

void setPwmFrequency(std::uint16_t frequency);
/// set the PWM frequency in Hz.
/// @note The frequency is shared by all PWM channels, so changing it also
/// changes a channel that is already running.
bool setPwmFrequency(std::uint16_t frequency);

/// set PWM duty in percent.
/// @param channel PWM channel (pwm_ch1 - pwm_ch4).
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