Das Arm Mbed OS-Konfigurationssystem, ist Teil der Build-Tools von Arm Mbed OS. Es passt die Konfigurationsparameter während der die Kompilierzeit an.
Zum Beispiel wird folgendes Programm
DigitalIn button1( MBED_CONF_IOTKIT_BUTTON1, PullUp );
DigitalOut led1( MBED_CONF_IOTKIT_LED2 );
int main()
{
...
}wie folgt, für das IoTKit K64F Board, übersetzt:
DigitalIn button1( PTC13, PullUp );
DigitalOut led1( D11 );
int main()
{
...
}Dazu kann jede Library eine Reihe von Konfigurationsparametern in mbed_lib.json definieren. Diese Werte können Global in der mbed_app.json überschrieben werden.
Die Konfiguration wird im JSON-Format definiert.
Das IoTKit Verwendet dieses System um Pinbelegungen für Unterschiedliche Boards anzupassen. Statt den direkten Bezeichner, z.B. PTC13 zu verwenden, wird der Konfigurationsparameter MBED_CONF_IOTKIT_BUTTON1 verwendet. Dieser wird je nach Board mit PTC13 - IoTKit K64F oder USER_BUTTON beim Board DISCO_L475VG_IOT01A ersetzt.
Weitere Informationen zu allen oder einem Konfigurationsparameter erhält man mittels:
mbed compile --config --prefix iotkit -v
mbed compile --config --prefix iotkit.stepper1-1 -v
Configuration parameters
------------------------
Name: iotkit.stepper1-1
Description: Schrittmotor 1 an Stepper 1
Defined by: library:iotkit
Macro name: MBED_CONF_IOTKIT_STEPPER1_1
Value: PTB0 (set by library:iotkit)
Oder für das DISCO_L475VG_IOT01A Board
mbed compile --config --prefix iotkit.stepper1-1 -v -m DISCO_L475VG_IOT01A
Configuration parameters
------------------------
Name: iotkit.stepper1-1
Description: Schrittmotor 1 an Stepper 1
Defined by: library:iotkit
Macro name: MBED_CONF_IOTKIT_STEPPER1_1
Value: D3 (set by library:iotkit[DISCO_L475VG_IOT01A])
Die folgende Tabelle gibt eine Übersicht über die Zuordungen.
| Konfigurationsparameter | IoTKit K64F Pin | DISCO_L475VG_IOT01A Pin | NUCLEO-F429ZI Pin |
|---|---|---|---|
| MBED_CONF_IOTKIT_BUTTON1 | PTC13 | USER_BUTTON | USER_BUTTON |
| MBED_CONF_IOTKIT_BUTTON2 | PTC6 | USER_BUTTON | USER_BUTTON |
| MBED_CONF_IOTKIT_BUTTON3 | PTA4 | USER_BUTTON | USER_BUTTON |
| MBED_CONF_IOTKIT_BUZZER | D12 | D3 | D13 |
| MBED_CONF_IOTKIT_DOTLED_MISO | PTD7 | D12 | PE_5 |
| MBED_CONF_IOTKIT_DOTLED_MOSI | PTD6 | D11 | PE_6 |
| MBED_CONF_IOTKIT_DOTLED_SCLK | PTD5 | D13 | PE_2 |
| MBED_CONF_IOTKIT_DOTLED_SS | PTE6 | D10 | PE_4 |
| MBED_CONF_IOTKIT_GROVE_I2C_SCL | PTE24 | D15 | D15 |
| MBED_CONF_IOTKIT_GROVE_I2C_SDA | PTE25 | D14 | D14 |
| MBED_CONF_IOTKIT_GROVE_UART_RX | PTE5 | D0 | - |
| MBED_CONF_IOTKIT_GROVE_UART_TX | PTE4 | D1 | - |
| MBED_CONF_IOTKIT_GROVE1_1 | A4 | A4 | A4 |
| MBED_CONF_IOTKIT_GROVE1_2 | A5 | A5 | A5 |
| MBED_CONF_IOTKIT_GROVE2_1 | D2 | A1 | - |
| MBED_CONF_IOTKIT_GROVE2_2 | D3 | A0 | - |
| MBED_CONF_IOTKIT_GROVE3_1 | D5 | D10 | - |
| MBED_CONF_IOTKIT_GROVE3_2 | D6 | D9 | - |
| MBED_CONF_IOTKIT_HALL_SENSOR | PTC0 | A3 | A3 |
| MBED_CONF_IOTKIT_I2C_SCL | PTE1 | PB_10 | D15 |
| MBED_CONF_IOTKIT_I2C_SDA | PTE0 | PB_11 | D14 |
| MBED_CONF_IOTKIT_LED_SPI_MOSI | PTD6 | D11 | PE_6 |
| MBED_CONF_IOTKIT_LED_SPI_SCLK | PTD5 | D13 | PE_2 |
| MBED_CONF_IOTKIT_LED1 | D10 | LED1 | LED1 |
| MBED_CONF_IOTKIT_LED2 | D11 | LED2 | LED2 |
| MBED_CONF_IOTKIT_LED3 | D12 | LED3 | LED3 |
| MBED_CONF_IOTKIT_LED4 | D13 | LED4 | LED4 |
| MBED_CONF_IOTKIT_MOSFET1 | D5 | D3 | PG_3 |
| MBED_CONF_IOTKIT_MOSFET2 | D6 | D5 | PC_11 |
| MBED_CONF_IOTKIT_MOSFET3 | D7 | D6 | - |
| MBED_CONF_IOTKIT_MOTOR1_FWD | D2 | D2 | D2 |
| MBED_CONF_IOTKIT_MOTOR1_PWM | D3 | D3 | D3 |
| MBED_CONF_IOTKIT_MOTOR1_REV | D4 | D4 | D4 |
| MBED_CONF_IOTKIT_MOTOR2_FWD | D6 | D6 | D6 |
| MBED_CONF_IOTKIT_MOTOR2_PWM | D5 | D5 | D5 |
| MBED_CONF_IOTKIT_MOTOR2_REV | D7 | D7 | D7 |
| MBED_CONF_IOTKIT_OLED_RST | PTE26 | D9 | D9 |
| MBED_CONF_IOTKIT_OLED_SCL | PTE1 | D15 | D15 |
| MBED_CONF_IOTKIT_OLED_SDA | PTE0 | D14 | D14 |
| MBED_CONF_IOTKIT_RFID_MISO | PTC7 | D12 | PE_5 |
| MBED_CONF_IOTKIT_RFID_MOSI | PTA16 | D11 | PE_6 |
| MBED_CONF_IOTKIT_RFID_RST | D8 | D8 | PD_6 |
| MBED_CONF_IOTKIT_RFID_SCLK | PTC5 | D13 | PE_2 |
| MBED_CONF_IOTKIT_RFID_SS | D10 | D10 | PD_5 |
| MBED_CONF_IOTKIT_SERVO1 | D9 | D3 | D9 |
| MBED_CONF_IOTKIT_SERVO2 | D10 | D9 | D10 |
| MBED_CONF_IOTKIT_SERVO3 | D11 | D10 | D11 |
| MBED_CONF_IOTKIT_SERVO4 | D12 | D11 | D12 |
| MBED_CONF_IOTKIT_STEPPER1_1 | PTB0 | D3 | PC_8 |
| MBED_CONF_IOTKIT_STEPPER1_2 | PTB1 | D5 | PC_9 |
| MBED_CONF_IOTKIT_STEPPER1_3 | PTB21 | D6 | PC_10 |
| MBED_CONF_IOTKIT_STEPPER1_4 | PTB20 | D9 | PC_11 |
| MBED_CONF_IOTKIT_STEPPER2_1 | PTC9 | D2 | PC_12 |
| MBED_CONF_IOTKIT_STEPPER2_2 | PTC8 | D4 | PD_2 |
| MBED_CONF_IOTKIT_STEPPER2_3 | PTB19 | D7 | PG_2 |
| MBED_CONF_IOTKIT_STEPPER2_4 | PTB18 | D8 | PG_3 |