IOExpander: add readAll() API

[facchinm]

@manchoz

[github-actions[bot]]

Memory usage change @ ee437a6d94cb34c7c64dfe082c5046c6d24f8aee

Board	flash	%	RAM for global variables	%
arduino:mbed_portenta:envie_m7	:small_red_triangle: 0 - +128	0.0 - +0.02	0 - 0	0.0 - 0.0

Click for full report table

Board|examples/Analog_Out
flash|%|examples/Analog_Out
RAM for global variables|%|examples/Analog_input/Analog_input_0_10V
flash|%|examples/Analog_input/Analog_input_0_10V
RAM for global variables|%|examples/Analog_input/Analog_input_4_20mA
flash|%|examples/Analog_input/Analog_input_4_20mA
RAM for global variables|%|examples/Analog_input/Analog_input_NTC
flash|%|examples/Analog_input/Analog_input_NTC
RAM for global variables|%|examples/CAN/ReadCan
flash|%|examples/CAN/ReadCan
RAM for global variables|%|examples/CAN/WriteCan
flash|%|examples/CAN/WriteCan
RAM for global variables|%|examples/Digital_output
flash|%|examples/Digital_output
RAM for global variables|%|examples/Digital_programmable/CombinedIOExpander
flash|%|examples/Digital_programmable/CombinedIOExpander
RAM for global variables|%|examples/Digital_programmable/Digital_input
flash|%|examples/Digital_programmable/Digital_input
RAM for global variables|%|examples/Digital_programmable/GPIO_programmable
flash|%|examples/Digital_programmable/GPIO_programmable
RAM for global variables|%|examples/Encoders
flash|%|examples/Encoders
RAM for global variables|%|examples/Ethernet
flash|%|examples/Ethernet
RAM for global variables|%|examples/RS232
flash|%|examples/RS232
RAM for global variables|%|examples/RS485_fullduplex
flash|%|examples/RS485_fullduplex
RAM for global variables|%|examples/RS485_halfduplex
flash|%|examples/RS485_halfduplex
RAM for global variables|%|examples/RTC
flash|%|examples/RTC
RAM for global variables|%|examples/RTC_Alarm
flash|%|examples/RTC_Alarm
RAM for global variables|%|examples/Temp_probes_RTD
flash|%|examples/Temp_probes_RTD
RAM for global variables|%|examples/Temp_probes_Thermocouples
flash|%|examples/Temp_probes_Thermocouples
RAM for global variables|%|examples/USB_host
flash|%|examples/USB_host
RAM for global variables|% -|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|- arduino:mbed_portenta:envie_m7|0|0.0|0|0.0|0|0.0|0|0.0|0|0.0|0|0.0|0|0.0|0|0.0|0|0.0|0|0.0|0|0.0|0|0.0|0|0.0|0|0.0|0|0.0|0|0.0|128|0.02|0|0.0|0|0.0|0|0.0|0|0.0|0|0.0|0|0.0|0|0.0|0|0.0|0|0.0|0|0.0|0|0.0|0|0.0|0|0.0|0|0.0|0|0.0|0|0.0|0|0.0|0|0.0|0|0.0|0|0.0|0|0.0|0|0.0|0|0.0

Click for full report CSV

``` Board,examples/Analog_Out
flash,%,examples/Analog_Out
RAM for global variables,%,examples/Analog_input/Analog_input_0_10V
flash,%,examples/Analog_input/Analog_input_0_10V
RAM for global variables,%,examples/Analog_input/Analog_input_4_20mA
flash,%,examples/Analog_input/Analog_input_4_20mA
RAM for global variables,%,examples/Analog_input/Analog_input_NTC
flash,%,examples/Analog_input/Analog_input_NTC
RAM for global variables,%,examples/CAN/ReadCan
flash,%,examples/CAN/ReadCan
RAM for global variables,%,examples/CAN/WriteCan
flash,%,examples/CAN/WriteCan
RAM for global variables,%,examples/Digital_output
flash,%,examples/Digital_output
RAM for global variables,%,examples/Digital_programmable/CombinedIOExpander
flash,%,examples/Digital_programmable/CombinedIOExpander
RAM for global variables,%,examples/Digital_programmable/Digital_input
flash,%,examples/Digital_programmable/Digital_input
RAM for global variables,%,examples/Digital_programmable/GPIO_programmable
flash,%,examples/Digital_programmable/GPIO_programmable
RAM for global variables,%,examples/Encoders
flash,%,examples/Encoders
RAM for global variables,%,examples/Ethernet
flash,%,examples/Ethernet
RAM for global variables,%,examples/RS232
flash,%,examples/RS232
RAM for global variables,%,examples/RS485_fullduplex
flash,%,examples/RS485_fullduplex
RAM for global variables,%,examples/RS485_halfduplex
flash,%,examples/RS485_halfduplex
RAM for global variables,%,examples/RTC
flash,%,examples/RTC
RAM for global variables,%,examples/RTC_Alarm
flash,%,examples/RTC_Alarm
RAM for global variables,%,examples/Temp_probes_RTD
flash,%,examples/Temp_probes_RTD
RAM for global variables,%,examples/Temp_probes_Thermocouples
flash,%,examples/Temp_probes_Thermocouples
RAM for global variables,%,examples/USB_host
flash,%,examples/USB_host
RAM for global variables,% arduino:mbed_portenta:envie_m7,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,128,0.02,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0 ```

[Rocketct]

Hi guys did you check if the print of the pins is aligned with the headers number views? at last we decide to not include the writeAll?

[pnndra]

we need to also add the writeAll() API

[Rocketct]

ookk so let me check this if work correctly i'll merge and on top of this i'll push the writeAll()