Expected completion time of this lab:

20 min

Enable the D0 GPIO

This step enables the GPIO input pin. It is a required step for reading its value or activating notifications.

The D0 GPIO corresponds to the DP2 pin on the DC9003 SmartMesh Eval/Dev Mote.

To fill in the table below, take a look at the SmartMesh IP Tools Guide, chapter "On-Chip Application Protocol"

Fill in the following table to create the command to send to the mote to enable the digital_in/D0 GPIO:

field name

length

value

explanation

control byte

1 byte

05

N.A.

id byte

1 byte

00

N.A.

command

1 byte

look for the "Command field" table in the tools guide

PUT

channel

type

1 byte

ff

type: address

length

1 byte

02

length: 2 bytes

value

2 bytes

look for the "Addressable Elements and Pinout" list in the tools guide

value: digital_in/D0

variable

ID

1 byte

look for the "/digital_in" section in the tools guide, variable "enabled"

type: enable

length

1 byte

01

length: 1 byte

value

1 byte

look for the "/digital_in" section in the tools guide, variable "enabled"

enabled

Issue the command to your mote:

macAddress	your mote’s MAC address, e.g. `00170D0000600382`
priority	Medium
srcPort	61625
dstPort	61625
options	0
data	<see above>

Read the value of the D0 GPIO

To fill in the table below, take a look at the SmartMesh IP Tools Guide, Chapter "On-Chip Application Protocol"

Fill in the following table to create the command to send to the mote to read the current value on digital_in/D0 GPIO:

field name

length

value

explanation

control byte

1 byte

05

N.A.

id byte

1 byte

00

N.A.

command

1 byte

look for the "Command field" table in the tools guide

GET

channel

type

1 byte

ff

type: address

length

1 byte

02

length: 2 bytes

value

2 bytes

look for the "Addressable Elements and Pinout" list in the tools guide

value: digital_in/D0

Issue the command to your mote:

macAddress	your mote’s MAC address, e.g. `00170D0000600382`
priority	Medium
srcPort	61625
dstPort	61625
options	0
data	<see above>

The mote will answer with the state of the pin itself.
Fill in the following table with the bytes you receive. Start by filling in the "values received" column by directly copy-pasting the bytes. Then, use the tools guide to fill in the "explanation" column.

field name		length	explanation
control byte		1 byte	N.A.
id byte		1 byte	N.A.
command		1 byte
return code		1 byte
channel	type	1 byte
	length	1 byte
	value	2 bytes
variable	type	1 byte
	length	1 byte
	value	1 byte
variable	type	1 byte
	length	1 byte
	value	4 bytes
variable	type	1 byte
	length	1 byte
	value	2 bytes
variable	type	1 byte
	length	1 byte
	value	1 byte
variable	type	1 byte
	length	1 byte
	value	1 byte

What is the state (value) of your pin?
Connect a jumper between the DP2 and VSUPPLY pins. Make sure you can read the value of digital_in/D0 to be high.
Connect a jumper between the DP2 and GND pins. Make sure you can read the value of digital_in/D0 to be low.
NEVER CONNECT VSUPPLY AND GND TOGETHER!!