M2M-EMU-GPIO-Development

DigitalSensors (Emulated GPIO) development in M2M commboard

TASKs TO-DO

Southbound functions to be developed

Emulated GPIO configuration

result emu_gpio_config(Signal, HW-Parse, Mode, Pull, Timming)

Inputs

• Signal : Struct that will contains the Port & Pin
• HW-Parse : Mapping of the Hardware as PXY
• MODE: read / write
• Pull: yes / no
• Timming: Period

Output

• result: TODO Francis

Set Mode

Change the mode of a PIN. It is called from config and form read_write

result emu_gpio_set_mode(Signal, Mode)

Inputs

• Signal : Struct that will contains the Port & Pin
• MODE: read / write

Read Write digital secuence

result emu_gpio_read_write(id_sensor, Stream_CS, Stream_SDI, Stream_SDO, Stream_SCK)

Inputs

• Id_sensor: ID of the sensor. With this ID is possible to get all the characteristics of the pins (4) to be used
• Stream_XXX : Stream to be sent/read through each port. It should have a minimum and a maximum longitude. Format:

  • 1 / 0 : Write 1 or 0
  • X : Leave the pin as it is
  • R : Read the pin Examples of Stream: "1100", "XXX1", "1RRR". Each character takes a period of the signal.

Output

• result: Stream read (Normally there is only one stream that read)

Additional Information

These function(s) should be developed in the file southbound_ec.c

The main three functions of this development should be called from main.c with different options in order to demonstrate its behaviour and ease the testing.

Ressources

Structures to be used and examples:

TODO By Francis