Incorret Pin tied to LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ13 in function LowPower::getDeepSleepWakeIRQChannelForPin()

[PaulA-V]

Hello,

According to the Portenta C33 Full Pinout, the Renesas LPM API and experimental data, the Pin that the LowPower::getDeepSleepWakeIRQChannelForPin() function returns IRQ LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ13 for is incorrect. A5 is linked to IRQ13 which, according to the Renesas documentation, is not a Deep Softwware Standby cancel IRQ. Deep Software Standby IRQs are designated in both the Renesas and Arduino documentation as IRQn-DS. In this instance LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ13 refers to IRQ13-DS which is tied to Aduino Pin 27/High Density Connector Pin J2-46/Renesas Pin P009/GPIO 0. If you pass Pin 27 to this function, it returns -1 which prevents the use of this Pin for Deep Software Standby Mode cancellation using this library. For now I am passing this function in my code A5 in order to have Pin 27 as the digital input to wake the Portenta C33. Let me know if you need any clarification. I have not investigated extent of condition of this issue to other parts of the library.

Regards,

Paul

---

From Arduino_LowPowerPortentaC33.cpp:

int LowPower::getDeepSleepWakeIRQChannelForPin(uint8_t pin){
  switch (pin)
        {
            case A0: return LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ11;
            case A1: return LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ10;
            case A2: return LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ9;
            case A3: return LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ8;
            case A4: return LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ7;
            case A5: return LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ13;
            case 4:  return LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ5;
            case 7:  return LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ4;
        default:
            return -1;
        }
}

From r_lpm_api.h:

/** Deep Standby Interrupt Edge */
typedef enum e_lpm_deep_standby_cancel_edge
{
    LPM_DEEP_STANDBY_CANCEL_SOURCE_EDGE_NONE    = 0U,           ///< No options for a deep standby cancel source
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ0_RISING  = 0x00000001U,  ///< IRQ0-DS Pin Rising Edge
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ0_FALLING = 0U,           ///< IRQ0-DS Pin Falling Edge
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ1_RISING  = 0x00000002U,  ///< IRQ1-DS Pin Rising Edge
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ1_FALLING = 0U,           ///< IRQ1-DS Pin Falling Edge
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ2_RISING  = 0x00000004U,  ///< IRQ2-DS Pin Rising Edge
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ2_FALLING = 0U,           ///< IRQ2-DS Pin Falling Edge
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ3_RISING  = 0x00000008U,  ///< IRQ3-DS Pin Rising Edge
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ3_FALLING = 0U,           ///< IRQ3-DS Pin Falling Edge
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ4_RISING  = 0x00000010U,  ///< IRQ4-DS Pin Rising Edge
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ4_FALLING = 0U,           ///< IRQ4-DS Pin Falling Edge
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ5_RISING  = 0x00000020U,  ///< IRQ5-DS Pin Rising Edge
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ5_FALLING = 0U,           ///< IRQ5-DS Pin Falling Edge
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ6_RISING  = 0x00000040U,  ///< IRQ6-DS Pin Rising Edge
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ6_FALLING = 0U,           ///< IRQ6-DS Pin Falling Edge
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ7_RISING  = 0x00000080U,  ///< IRQ7-DS Pin Rising Edge
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ7_FALLING = 0U,           ///< IRQ7-DS Pin Falling Edge

    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ8_RISING   = 0x00000100U, ///< IRQ8-DS Pin Rising Edge
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ8_FALLING  = 0U,          ///< IRQ8-DS Pin Falling Edge
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ9_RISING   = 0x00000200U, ///< IRQ9-DS Pin Rising Edge
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ9_FALLING  = 0U,          ///< IRQ9-DS Pin Falling Edge
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ10_RISING  = 0x00000400U, ///< IRQ10-DS Pin Rising Edge
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ10_FALLING = 0U,          ///< IRQ10-DS Pin Falling Edge
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ11_RISING  = 0x00000800U, ///< IRQ11-DS Pin Rising Edge
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ11_FALLING = 0U,          ///< IRQ11-DS Pin Falling Edge
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ12_RISING  = 0x00001000U, ///< IRQ12-DS Pin Rising Edge
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ12_FALLING = 0U,          ///< IRQ12-DS Pin Falling Edge
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ13_RISING  = 0x00002000U, ///< IRQ13-DS Pin Rising Edge
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ13_FALLING = 0U,          ///< IRQ13-DS Pin Falling Edge
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ14_RISING  = 0x00004000U, ///< IRQ14-DS Pin Rising Edge
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ14_FALLING = 0U,          ///< IRQ14-DS Pin Falling Edge
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ15_RISING  = 0x00008000U, ///< IRQ14-DS Pin Rising Edge
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ15_FALLING = 0U,          ///< IRQ14-DS Pin Falling Edge

    LPM_DEEP_STANDBY_CANCEL_SOURCE_LVD1_RISING  = 0x00010000U,  ///< LVD1 Rising Slope
    LPM_DEEP_STANDBY_CANCEL_SOURCE_LVD1_FALLING = 0U,           ///< LVD1 Falling Slope
    LPM_DEEP_STANDBY_CANCEL_SOURCE_LVD2_RISING  = 0x00020000U,  ///< LVD2 Rising Slope
    LPM_DEEP_STANDBY_CANCEL_SOURCE_LVD2_FALLING = 0U,           ///< LVD2 Falling Slope
    LPM_DEEP_STANDBY_CANCEL_SOURCE_NMI_RISING   = 0x00100000U,  ///< NMI Pin Rising Edge
    LPM_DEEP_STANDBY_CANCEL_SOURCE_NMI_FALLING  = 0U,           ///< NMI Pin Falling Edge
} lpm_deep_standby_cancel_edge_t;

/** Deep Standby cancel sources */
typedef enum e_lpm_deep_standby_cancel_source
{
    LPM_DEEP_STANDBY_CANCEL_SOURCE_RESET_ONLY = 0U,            ///< Cancel deep standby only by reset

    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ0 = 0x00000001U,         ///< IRQ0
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ1 = 0x00000002U,         ///< IRQ1
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ2 = 0x00000004U,         ///< IRQ2
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ3 = 0x00000008U,         ///< IRQ3
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ4 = 0x00000010U,         ///< IRQ4
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ5 = 0x00000020U,         ///< IRQ5
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ6 = 0x00000040U,         ///< IRQ6
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ7 = 0x00000080U,         ///< IRQ7

    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ8  = 0x00000100U,        ///< IRQ8
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ9  = 0x00000200U,        ///< IRQ9
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ10 = 0x00000400U,        ///< IRQ10
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ11 = 0x00000800U,        ///< IRQ11
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ12 = 0x00001000U,        ///< IRQ12
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ13 = 0x00002000U,        ///< IRQ13
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ14 = 0x00004000U,        ///< IRQ14
    LPM_DEEP_STANDBY_CANCEL_SOURCE_IRQ15 = 0x00008000U,        ///< IRQ15

    LPM_DEEP_STANDBY_CANCEL_SOURCE_LVD1         = 0x00010000U, ///< LVD1
    LPM_DEEP_STANDBY_CANCEL_SOURCE_LVD2         = 0x00020000U, ///< LVD2
    LPM_DEEP_STANDBY_CANCEL_SOURCE_RTC_INTERVAL = 0x00040000U, ///< RTC Interval Interrupt
    LPM_DEEP_STANDBY_CANCEL_SOURCE_RTC_ALARM    = 0x00080000U, ///< RTC Alarm Interrupt
    LPM_DEEP_STANDBY_CANCEL_SOURCE_NMI          = 0x00100000U, ///< NMI

    LPM_DEEP_STANDBY_CANCEL_SOURCE_USBFS = 0x01000000U,        ///< USBFS Suspend/Resume
    LPM_DEEP_STANDBY_CANCEL_SOURCE_USBHS = 0x02000000U,        ///< USBHS Suspend/Resume
    LPM_DEEP_STANDBY_CANCEL_SOURCE_AGT1  = 0x04000000U,        ///< AGT1 Underflow
} lpm_deep_standby_cancel_source_t;

From Table 10.3 in Renesas RA6M5 User's Manual R01UH0891EJ0130 Rev.1.30:

From ABX00074-full-pinout: