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Fazer download, compilação, instalação e execução de demonstração OTA do FreeRTOS no Microchip Curiosity PIC32MZEF
Importante
Essa integração de referência está hospedada no repositório Amazon-FreeRTOS, que está preterido. Recomendamos começar aqui ao criar um novo projeto. Se você já tem um projeto FreeRTOS existente baseado no repositório Amazon-FreeRTOS que está preterido, consulte o Guia de migração do RTOS repositório Github gratuito da Amazon.
nota
De acordo com a Microchip, estamos removendo o Curiosity PIC32MZEF (DM320104) da ramificação principal do repositório de Integração de Referência do FreeRTOS e não o carregaremos mais em novas versões. A Microchip emitiu um aviso oficial
Como fazer download do código de demonstração OTA do FreeRTOS
-
É possível baixar o código-fonte no site GitHub em https://github.com/FreeRTOS/FreeRTOS
.
Para criar o aplicativo de demonstração de atualização OTA
-
Siga as instruções em Comece com o Free RTOS para importar o projeto
aws_demos
para o MPLAB X IDE, configurar o endpoint da AWS IoT, o SSID e a senha do Wi-Fi, uma chave privada e um certificado para a placa. -
Abra o arquivo
vendors/
e insira seu certificado.vendor
/boards/board
/aws_demos/config_files/ota_demo_config.h[] = "
your-certificate-key
"; -
Cole o conteúdo do certificado de assinatura de código aqui:
#define otapalconfigCODE_SIGNING_CERTIFICATE [] = "
your-certificate-key
";Siga o mesmo formato que
aws_clientcredential_keys.h
, cada linha deve terminar com o novo caractere de linha ('\n') e estar entre aspas.Por exemplo, o certificado deve ser semelhante ao seguinte:
"-----BEGIN CERTIFICATE-----\n" "MIIBXTCCAQOgAwIBAgIJAM4DeybZcTwKMAoGCCqGSM49BAMCMCExHzAdBgNVBAMM\n" "FnRlc3Rf62lnbmVyQGFtYXpvbi5jb20wHhcNMTcxMTAzMTkxODM1WhcNMTgxMTAz\n" "MTkxODM2WjAhMR8wHQYDVQBBZZZ0ZXN0X3NpZ25lckBhbWF6b24uY29tMFkwEwYH\n" "KoZIzj0CAQYIKoZIzj0DAQcDQgAERavZfvwL1X+E4dIF7dbkVMUn4IrJ1CAsFkc8\n" "gZxPzn683H40XMKltDZPEwr9ng78w9+QYQg7ygnr2stz8yhh06MkMCIwCwYDVR0P\n" "BAQDAgeAMBMGA1UdJQQMMAoGCCsGAQUFBwMDMAoGCCqGSM49BAMCA0gAMEUCIF0R\n" "r5cb7rEUNtWOvGd05MacrgOABfSoVYvBOK9fP63WAqt5h3BaS123coKSGg84twlq\n" "TkO/pV/xEmyZmZdV+HxV/OM=\n" "-----END CERTIFICATE-----\n";
-
Instale o Python 3
ou posterior. -
Instale
pyOpenSSL
executandopip install pyopenssl
. -
Copie o certificado de assinatura de código no formato .pem no caminho
demos/ota/bootloader/utility/codesigner_cert_utility/
. Renomeie o arquivo de certificadoaws_ota_codesigner_certificate.pem
. -
Abra
, comentefreertos
/vendors/vendor
/boards/board
/aws_demos/config_files/aws_demo_config.h#define CONFIG_CORE_MQTT_MUTUAL_AUTH_DEMO_ENABLED
e definaCONFIG_OTA_MQTT_UPDATE_DEMO_ENABLED
ouCONFIG_OTA_HTTP_UPDATE_DEMO_ENABLED
. -
Crie a solução e verifique se ela foi criada sem erros.
-
Inicie um emulador de terminal e use as seguintes configurações para se conectar à placa:
-
Taxa de baud: 115200
-
Bits de dados: 8
-
Paridade: nenhum
-
Bits de parada: 1
-
-
Desconecte o depurador da placa e execute o projeto na placa para confirmar se ele pode se conectar ao Wi-Fi e ao agente de mensagens MQTT da AWS IoT.
Quando você executa o projeto, o MPLAB X IDE deve abrir uma janela de saída. Certifique-se de que a guia ICD4 esteja selecionada. Você deve ver a saída a seguir.
Bootloader version 00.09.00
[prvBOOT_Init] Watchdog timer initialized.
[prvBOOT_Init] Crypto initialized.
[prvValidateImage] Validating image at Bank : 0
[prvValidateImage] No application image or magic code present at: 0xbd000000
[prvBOOT_ValidateImages] Validation failed for image at 0xbd000000
[prvValidateImage] Validating image at Bank : 1
[prvValidateImage] No application image or magic code present at: 0xbd100000
[prvBOOT_ValidateImages] Validation failed for image at 0xbd100000
[prvBOOT_ValidateImages] Booting default image.
>0 36246 [IP-task] vDHCPProcess: offer ac140a0eip
1 36297 [IP-task] vDHCPProcess: offer ac140a0eip
2 36297 [IP-task]
IP Address: 172.20.10.14
3 36297 [IP-task] Subnet Mask: 255.255.255.240
4 36297 [IP-task] Gateway Address: 172.20.10.1
5 36297 [IP-task] DNS Server Address: 172.20.10.1
6 36299 [OTA] OTA demo version 0.9.2
7 36299 [OTA] Creating MQTT Client...
8 36299 [OTA] Connecting to broker...
9 38673 [OTA] Connected to broker.
10 38793 [OTA Task] [prvSubscribeToJobNotificationTopics] OK: $aws/things/devthingota/jobs/$next/get/accepted
11 38863 [OTA Task] [prvSubscribeToJobNotificationTopics] OK: $aws/things/devthingota/jobs/notify-next
12 38863 [OTA Task] [OTA_CheckForUpdate] Request #0
13 38964 [OTA] [OTA_AgentInit] Ready.
14 38973 [OTA Task] [prvParseJSONbyModel] Extracted parameter [ clientToken: 0:devthingota ]
15 38973 [OTA Task] [prvParseJSONbyModel] parameter not present: execution
16 38973 [OTA Task] [prvParseJSONbyModel] parameter not present: jobId
17 38973 [OTA Task] [prvParseJSONbyModel] parameter not present: jobDocument
18 38973 [OTA Task] [prvParseJSONbyModel] parameter not present: streamname
19 38973 [OTA Task] [prvParseJSONbyModel] parameter not present: files
20 38975 [OTA Task] [prvParseJSONbyModel] parameter not present: filepath
21 38975 [OTA Task] [prvParseJSONbyModel] parameter not present: filesize
22 38975 [OTA Task] [prvParseJSONbyModel] parameter not present: fileid
23 38975 [OTA Task] [prvParseJSONbyModel] parameter not present: certfile
24 38975 [OTA Task] [prvParseJSONbyModel] parameter not present: sig-sha256-ecdsa
25 38975 [OTA Task] [prvParseJobDoc] Ignoring job without ID.
26 38975 [OTA Task] [prvOTA_Close] Context->0x8003b620
27 38975 [OTA Task] [prvPAL_Abort] Abort - OK
28 39964 [OTA] State: Ready Received: 1 Queued: 1 Processed: 1 Dropped: 0
29 40964 [OTA] State: Ready Received: 1 Queued: 1 Processed: 1 Dropped: 0
30 41964 [OTA] State: Ready Received: 1 Queued: 1 Processed: 1 Dropped: 0
31 42964 [OTA] State: Ready Received: 1 Queued: 1 Processed: 1 Dropped: 0
32 43964 [OTA] State: Ready Received: 1 Queued: 1 Processed: 1 Dropped: 0
33 44964 [OTA] State: Ready Received: 1 Queued: 1 Processed: 1 Dropped: 0
34 45964 [OTA] State: Ready Received: 1 Queued: 1 Processed: 1 Dropped: 0
35 46964 [OTA] State: Ready Received: 1 Queued: 1 Processed: 1 Dropped: 0
36 47964 [OTA] State: Ready Received: 1 Queued: 1 Processed: 1 Dropped: 0
O emulador de terminal deve exibir um texto como o seguinte:
AWS Validate: no valid signature in descr: 0xbd000000
AWS Validate: no valid signature in descr: 0xbd100000
>AWS Launch: No Map performed. Running directly from address: 0x9d000020?
AWS Launch: wait for app at: 0x9d000020
WILC1000: Initializing...
0 0
>[None] Seed for randomizer: 1172751941
1 0 [None] Random numbers: 00004272 00003B34 00000602 00002DE3
Chip ID 1503a0
[spi_cmd_rsp][356][nmi spi]: Failed cmd response read, bus error...
[spi_read_reg][1086][nmi spi]: Failed cmd response, read reg (0000108c)...
[spi_read_reg][1116]Reset and retry 10 108c
Firmware ver. : 4.2.1
Min driver ver : 4.2.1
Curr driver ver: 4.2.1
WILC1000: Initialization successful!
Start Wi-Fi Connection...
Wi-Fi Connected
2 7219 [IP-task] vDHCPProcess: offer c0a804beip
3 7230 [IP-task] vDHCPProcess: offer c0a804beip
4 7230 [IP-task]
IP Address: 192.168.4.190
5 7230 [IP-task] Subnet Mask: 255.255.240.0
6 7230 [IP-task] Gateway Address: 192.168.0.1
7 7230 [IP-task] DNS Server Address: 208.67.222.222
8 7232 [OTA] OTA demo version 0.9.0
9 7232 [OTA] Creating MQTT Client...
10 7232 [OTA] Connecting to broker...
11 7232 [OTA] Sending command to MQTT task.
12 7232 [MQTT] Received message 10000 from queue.
13 8501 [IP-task] Socket sending wakeup to MQTT task.
14 10207 [MQTT] Received message 0 from queue.
15 10256 [IP-task] Socket sending wakeup to MQTT task.
16 10256 [MQTT] Received message 0 from queue.
17 10256 [MQTT] MQTT Connect was accepted. Connection established.
18 10256 [MQTT] Notifying task.
19 10257 [OTA] Command sent to MQTT task passed.
20 10257 [OTA] Connected to broker.
21 10258 [OTA Task] Sending command to MQTT task.
22 10258 [MQTT] Received message 20000 from queue.
23 10306 [IP-task] Socket sending wakeup to MQTT task.
24 10306 [MQTT] Received message 0 from queue.
25 10306 [MQTT] MQTT Subscribe was accepted. Subscribed.
26 10306 [MQTT] Notifying task.
27 10307 [OTA Task] Command sent to MQTT task passed.
28 10307 [OTA Task] [OTA] Subscribed to topic: $aws/things/Microchip/jobs/$next/get/accepted
29 10307 [OTA Task] Sending command to MQTT task.
30 10307 [MQTT] Received message 30000 from queue.
31 10336 [IP-task] Socket sending wakeup to MQTT task.
32 10336 [MQTT] Received message 0 from queue.
33 10336 [MQTT] MQTT Subscribe was accepted. Subscribed.
34 10336 [MQTT] Notifying task.
35 10336 [OTA Task] Command sent to MQTT task passed.
36 10336 [OTA Task] [OTA] Subscribed to topic: $aws/things/Microchip/jobs/notify-next
37 10336 [OTA Task] [OTA] Check For Update #0
38 10336 [OTA Task] Sending command to MQTT task.
39 10336 [MQTT] Received message 40000 from queue.
40 10366 [IP-task] Socket sending wakeup to MQTT task.
41 10366 [MQTT] Received message 0 from queue.
42 10366 [MQTT] MQTT Publish was successful.
43 10366 [MQTT] Notifying task.
44 10366 [OTA Task] Command sent to MQTT task passed.
45 10376 [IP-task] Socket sending wakeup to MQTT task.
46 10376 [MQTT] Received message 0 from queue.
47 10376 [OTA Task] [OTA] Set job doc parameter [ clientToken: 0:Microchip ]
48 10376 [OTA Task] [OTA] Missing job parameter: execution
49 10376 [OTA Task] [OTA] Missing job parameter: jobId
50 10376 [OTA Task] [OTA] Missing job parameter: jobDocument
51 10378 [OTA Task] [OTA] Missing job parameter: ts_ota
52 10378 [OTA Task] [OTA] Missing job parameter: files
53 10378 [OTA Task] [OTA] Missing job parameter: streamname
54 10378 [OTA Task] [OTA] Missing job parameter: certfile
55 10378 [OTA Task] [OTA] Missing job parameter: filepath
56 10378 [OTA Task] [OTA] Missing job parameter: filesize
57 10378 [OTA Task] [OTA] Missing job parameter: sig-sha256-ecdsa
58 10378 [OTA Task] [OTA] Missing job parameter: fileid
59 10378 [OTA Task] [OTA] Missing job parameter: attr
60 10378 [OTA Task] [OTA] Returned buffer to MQTT Client.
61 11367 [OTA] [OTA] Queued: 1 Processed: 1 Dropped: 0
62 12367 [OTA] [OTA] Queued: 1 Processed: 1 Dropped: 0
63 13367 [OTA] [OTA] Queued: 1 Processed: 1 Dropped: 0
64 14367 [OTA] [OTA] Queued: 1 Processed: 1 Dropped: 0
65 15367 [OTA] [OTA] Queued: 1 Processed: 1 Dropped: 0
66 16367 [OTA] [OTA] Queued: 1 Processed: 1 Dropped: 0
Essa saída mostra que o Microchip Curiosity PIC32MZEF pode se conectar à AWS IoT e assinar os tópicos MQTT necessários para as atualizações OTA. As mensagens Missing job parameter
são esperadas porque não há tarefas de atualização OTA pendentes.