Hands-On: MCU & Port Configuration

/* Port driver configuration: generated by AUTOSAR configurator */
/* Defines direction, mode, initial value for every ECU pin */

#include "Port.h"

const Port_PinConfigType Port_PinConfig[] = {
    /* Pin: P02_3 -- LED Green output */
    {
        .Port_PinId           = PORT_PIN_LED_GREEN,   /* symbolic name */
        .Port_PinMode         = PORT_PIN_MODE_DIO,    /* GPIO mode */
        .Port_PinDirection    = PORT_PIN_OUT,
        .Port_PinLevelValue   = STD_LOW,              /* LED off at startup */
        .Port_PinDriveStrength= PORT_PIN_DRIVE_STD,   /* standard drive */
        .Port_PinPullMode     = PORT_PIN_NO_PULL,
    },
    /* Pin: P00_1 -- SPI0 chip select (output) */
    {
        .Port_PinId           = PORT_PIN_SPI0_CS,
        .Port_PinMode         = PORT_PIN_MODE_ALT2,   /* alternate func 2 = QSPI0_SLSO0 */
        .Port_PinDirection    = PORT_PIN_OUT,
        .Port_PinLevelValue   = STD_HIGH,             /* CS inactive (active low) */
        .Port_PinDriveStrength= PORT_PIN_DRIVE_STRONG,
        .Port_PinPullMode     = PORT_PIN_NO_PULL,
    },
    /* Pin: P40_4 -- CAN0 Tx */
    {
        .Port_PinId           = PORT_PIN_CAN0_TX,
        .Port_PinMode         = PORT_PIN_MODE_ALT5,   /* alternate func 5 = MULTICAN TX */
        .Port_PinDirection    = PORT_PIN_OUT,
        .Port_PinLevelValue   = STD_HIGH,             /* recessive by default */
        .Port_PinDriveStrength= PORT_PIN_DRIVE_STRONG,
        .Port_PinPullMode     = PORT_PIN_NO_PULL,
    },
    /* Pin: P40_5 -- CAN0 Rx */
    {
        .Port_PinId           = PORT_PIN_CAN0_RX,
        .Port_PinMode         = PORT_PIN_MODE_ALT5,   /* alternate func 5 = MULTICAN RX */
        .Port_PinDirection    = PORT_PIN_IN,
        .Port_PinLevelValue   = STD_LOW,              /* N/A for input */
        .Port_PinDriveStrength= PORT_PIN_DRIVE_STD,
        .Port_PinPullMode     = PORT_PIN_PULL_UP,     /* weak pull-up for CAN Rx */
    },
};

const Port_ConfigType PortConfig = {
    .Port_PinConfigSet  = Port_PinConfig,
    .Port_PinCount      = sizeof(Port_PinConfig)/sizeof(Port_PinConfigType),
};

#include "Dio.h"

/* Symbolic channel IDs defined in Dio_Cfg.h (generated) */
#define DIO_CH_LED_GREEN   ((Dio_ChannelType)0x0023u)  /* P02_3 */
#define DIO_CH_LED_RED     ((Dio_ChannelType)0x0024u)  /* P02_4 */
#define DIO_CH_RELAY_K1    ((Dio_ChannelType)0x00A0u)  /* P10_0 */
#define DIO_CH_BTN_INPUT   ((Dio_ChannelType)0x0031u)  /* P03_1 */

/* Read a digital input (button) */
boolean ReadButton(void)
{
    Dio_LevelType level = Dio_ReadChannel(DIO_CH_BTN_INPUT);
    return (level == STD_HIGH) ? TRUE : FALSE;  /* active high button */
}

/* Write a digital output (LED) */
void SetLedGreen(boolean on)
{
    Dio_WriteChannel(DIO_CH_LED_GREEN,
                     on ? STD_HIGH : STD_LOW);
}

/* Toggle using Dio_FlipChannel (AUTOSAR 4.x) */
void ToggleLedRed(void)
{
    Dio_FlipChannel(DIO_CH_LED_RED);
}

/* Write port group: 4 relay outputs at once */
/* Dio_ChannelGroupType defined in Dio_Cfg.h for Port 10 bits 0-3 */
void SetRelays(uint8 relay_mask)
{
    Dio_WriteChannelGroup(&Dio_ChannelGroupRelays,
                         (Dio_PortLevelType)relay_mask);
}