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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
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É possível baixar o código-fonte no site GitHub em https://github.com/FreeRTOS/FreeRTOS
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Para criar o aplicativo de demonstração de atualização OTA
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Siga as instruções em Comece com o Free RTOS para importar o projeto
aws_demospara 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
pyOpenSSLexecutandopip 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
freertos/vendors/vendor/boards/board/aws_demos/config_files/aws_demo_config.h#define CONFIG_CORE_MQTT_MUTUAL_AUTH_DEMO_ENABLEDe definaCONFIG_OTA_MQTT_UPDATE_DEMO_ENABLEDouCONFIG_OTA_HTTP_UPDATE_DEMO_ENABLED. -
Crie a solução e verifique se ela foi criada sem erros.
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Inicie um emulador de terminal e use as seguintes configurações para se conectar à placa:
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Taxa de baud: 115200
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Bits de dados: 8
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Paridade: nenhum
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Bits de parada: 1
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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.
