pelion-example-frdm - Mbed OS and Pelion Device Management example for …

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NXP / Mbed OS pelion-example-frdm

Mbed OS and Pelion Device Management example for FRDM-K64F and FRDM-K66F boards

Dependencies: FXAS21002 FXOS8700Q

This example is known to work great on the following platforms:

FRDM-K64F - onboard Ethernet and onboard SD card holder.
FRDM-K66F - onboard Ethernet and onboard SD card holder.

Follow the Quick-Start instructions: https://cloud.mbed.com/quick-start

FRDM-K64F FRDM-K66F

Example functionality

This example showcases the following device functionality:

Read onboard FXOS8700Q accelerometer and magnetometer, and report the values as Pelion LWM2M resources (see image below).
(FRDM-K66F only) Read onboard FXAS21002 gyroscope and report the values as Pelion LWM2M resources.
On user button click, increment Pelion LWM2M button resource.
Allow the user to change the state of the board LED from Pelion LWM2M led_state resource and PUT request.

/media/uploads/screamer/pelion_st_humidity_reading.png?v=2

Use this example with Mbed CLI

1. Import the application into your desktop:

mbed import https://os.mbed.com/teams/NXP/code/pelion-example-frdm

cd pelion-example-frdm

2. Install the CLOUD_SDK_API_KEY

mbed config -G CLOUD_SDK_API_KEY <PELION_DM_API_KEY>

For instructions on how to generate your API key, please see the documentation.

3. Initialize firmware credentials (done once per repository). You can use the following command:

mbed dm init -d "<your company name in Pelion DM>" --model-name "<product model identifier>" -q --force

If above command do not work for your Mbed CLI, please consider upgrading Mbed CLI to version 1.9.x or above.

4. Compile and program:

mbed compile -t <toolchain> -m <TARGET_BOARD>

(supported toolchains : GCC_ARM / ARM / IAR)

5. You can connect on a virtual terminal/COM port to the platform using:

mbed sterm -b 115200

This should give you an output similar to:

[BOOT] Mbed Bootloader
[BOOT] ARM: 00000000000000000000
[BOOT] OEM: 00000000000000000000
[BOOT] Layout: 0 8374
[BOOT] Active firmware integrity check:
[BOOT] SHA256: 411F422DE8FF545E2D3C373E87D5328162A129314A655AEC32B9A167DE29177E
[BOOT] Version: 1553606618
[BOOT] Slot 0 is empty
[BOOT] Active firmware up-to-date
[BOOT] Application's start address: 0x10400
[BOOT] Application's jump address: 0x112C1
[BOOT] Application's stack address: 0x20030000
[BOOT] Forwarding to application...


Starting Simple Pelion Device Management Client example
You can hold the user button during boot to format the storage and change the device identity.

Sensors configuration:
FXOS8700Q accelerometer = 0xC7
FXOS8700Q magnetometer  = 0xC7
FXAS21002 gyroscope     = 0xB7

Connecting to the network using the default network interface...
Connected to the network successfully. IP address: 10.2.202.65
Initializing Pelion Device Management Client...
Initialized Pelion Device Management Client. Registering...
Press the user button to increment the LwM2M resource value...

FXOS8700Q mag:    0.312 x,   0.039 y,  -1.625 z [gauss]
FXOS8700Q acc:    0.139 x,  -0.123 y,   4.260 z [g]
FXAS21002 gryo:  13.089 x,  13.089 y,  13.089 z [dps]

mbed_app.json@5:f2123dc31d30, 2019-03-27 (annotated)

Committer:: screamer
Date:: Wed Mar 27 17:49:40 2019 +0000
Revision:: 5:f2123dc31d30
Parent:: 0:a9d53048f0b6

Improve inline documentation

Who changed what in which revision?

User	Revision	Line number	New contents of line
screamer	0:a9d53048f0b6	1	{
screamer	0:a9d53048f0b6	2	"target_overrides": {
screamer	0:a9d53048f0b6	3	"*": {
screamer	0:a9d53048f0b6	4	"target.components_remove" : ["FLASHIAP"],
screamer	0:a9d53048f0b6	5	"platform.stdio-baud-rate" : 115200,
screamer	0:a9d53048f0b6	6	"platform.stdio-convert-newlines" : true,
screamer	0:a9d53048f0b6	7	"mbed-trace.enable" : null,
screamer	0:a9d53048f0b6	8	"nsapi.default-wifi-security" : "WPA_WPA2",
screamer	0:a9d53048f0b6	9	"nsapi.default-wifi-ssid" : "\"SSID\"",
screamer	0:a9d53048f0b6	10	"nsapi.default-wifi-password" : "\"Password\""
screamer	0:a9d53048f0b6	11	},
screamer	0:a9d53048f0b6	12	"K64F": {
screamer	0:a9d53048f0b6	13	"target.components_add" : ["SD"],
screamer	0:a9d53048f0b6	14	"device-management.flash-start-address" : "0x0",
screamer	0:a9d53048f0b6	15	"device-management.flash-size" : "(1024*1024)",
screamer	0:a9d53048f0b6	16	"device-management.sotp-section-1-address" : "(MBED_CONF_APP_FLASH_START_ADDRESS + MBED_CONF_APP_FLASH_SIZE - 2(41024))",
screamer	0:a9d53048f0b6	17	"device-management.sotp-section-1-size" : "(4*1024)",
screamer	0:a9d53048f0b6	18	"device-management.sotp-section-2-address" : "(MBED_CONF_APP_FLASH_START_ADDRESS + MBED_CONF_APP_FLASH_SIZE - 1(41024))",
screamer	0:a9d53048f0b6	19	"device-management.sotp-section-2-size" : "(4*1024)",
screamer	0:a9d53048f0b6	20	"update-client.application-details" : "(MBED_CONF_APP_FLASH_START_ADDRESS + 64*1024)",
screamer	0:a9d53048f0b6	21	"update-client.storage-address" : "(6410241024)",
screamer	0:a9d53048f0b6	22	"update-client.storage-size" : "(210241024)",
screamer	0:a9d53048f0b6	23	"update-client.storage-locations" : "1",
screamer	0:a9d53048f0b6	24	"target.features_add" : ["BOOTLOADER"],
screamer	0:a9d53048f0b6	25	"target.bootloader_img" : "bootloader/mbed-bootloader-K64F.bin",
screamer	0:a9d53048f0b6	26	"target.header_offset" : "0x10000",
screamer	0:a9d53048f0b6	27	"target.app_offset" : "0x10400",
screamer	0:a9d53048f0b6	28	"button-pressed-state" : 0
screamer	0:a9d53048f0b6	29	},
screamer	0:a9d53048f0b6	30	"K66F": {
screamer	0:a9d53048f0b6	31	"target.components_add" : ["SD"],
screamer	0:a9d53048f0b6	32	"device-management.flash-start-address" : "0x0",
screamer	0:a9d53048f0b6	33	"device-management.flash-size" : "(2048*1024)",
screamer	0:a9d53048f0b6	34	"device-management.sotp-section-1-address" : "(MBED_CONF_APP_FLASH_START_ADDRESS + MBED_CONF_APP_FLASH_SIZE - 2(41024))",
screamer	0:a9d53048f0b6	35	"device-management.sotp-section-1-size" : "(4*1024)",
screamer	0:a9d53048f0b6	36	"device-management.sotp-section-2-address" : "(MBED_CONF_APP_FLASH_START_ADDRESS + MBED_CONF_APP_FLASH_SIZE - 1(41024))",
screamer	0:a9d53048f0b6	37	"device-management.sotp-section-2-size" : "(4*1024)",
screamer	0:a9d53048f0b6	38	"update-client.application-details" : "(MBED_CONF_APP_FLASH_START_ADDRESS + 64*1024)",
screamer	0:a9d53048f0b6	39	"update-client.storage-address" : "(6410241024)",
screamer	0:a9d53048f0b6	40	"update-client.storage-size" : "(210241024)",
screamer	0:a9d53048f0b6	41	"update-client.storage-locations" : "1",
screamer	0:a9d53048f0b6	42	"target.features_add" : ["BOOTLOADER"],
screamer	0:a9d53048f0b6	43	"target.bootloader_img" : "bootloader/mbed-bootloader-K66F.bin",
screamer	0:a9d53048f0b6	44	"target.header_offset" : "0x10000",
screamer	0:a9d53048f0b6	45	"target.app_offset" : "0x10400",
screamer	0:a9d53048f0b6	46	"button-pressed-state" : 0
screamer	0:a9d53048f0b6	47	}
screamer	0:a9d53048f0b6	48	},
screamer	0:a9d53048f0b6	49	"config": {
screamer	0:a9d53048f0b6	50	"format-storage-layer-on-error": {
screamer	0:a9d53048f0b6	51	"help": "Whether to format the storage layer when it cannot be read - always disable for production devices!",
screamer	0:a9d53048f0b6	52	"value": 1
screamer	0:a9d53048f0b6	53	},
screamer	0:a9d53048f0b6	54	"main-stack-size": {
screamer	0:a9d53048f0b6	55	"value": 6000
screamer	0:a9d53048f0b6	56	},
screamer	0:a9d53048f0b6	57	"use-button": {
screamer	0:a9d53048f0b6	58	"help": "Whether the target has a button",
screamer	0:a9d53048f0b6	59	"macro_name": "USE_BUTTON",
screamer	0:a9d53048f0b6	60	"value": true
screamer	0:a9d53048f0b6	61	},
screamer	0:a9d53048f0b6	62	"button-pressed-state": {
screamer	0:a9d53048f0b6	63	"help": "Value of the button when pressed",
screamer	0:a9d53048f0b6	64	"value": 1
screamer	0:a9d53048f0b6	65	},
screamer	0:a9d53048f0b6	66	"no_led": {
screamer	0:a9d53048f0b6	67	"help": "This flag disables the heartbeat thread in tests. This is useful for platforms that don't have an LED or the LED is used for other functionality like LED on the SPI clockline etc",
screamer	0:a9d53048f0b6	68	"value": null
screamer	0:a9d53048f0b6	69	},
screamer	0:a9d53048f0b6	70	"tests-fs-size": {
screamer	0:a9d53048f0b6	71	"help": "Maximum size of the file system used for tests",
screamer	0:a9d53048f0b6	72	"value": null
screamer	0:a9d53048f0b6	73	}
screamer	0:a9d53048f0b6	74	}
screamer	0:a9d53048f0b6	75	}