U-BLOX NINA B112 ACESSANDO MODEM GSM VIA MBED STUDIO
U-BLOX NINA B112 ACESSANDO MODEM GSM VIA MBED STUDIO
O objetivo deste BLOG é mostrar como é possível utilizar o MBED STUDIO para programação do modem U-BLOX via comandos AT com a LIB da MBED. Testado no SARA G350, LISA U200 e SARA G450.
Não testada com NB-IoT mas a LIB faz referência.
Com o Mbed Studio, você pode importar programas do os.mbed.com, um serviço de hospedagem Git ou seu sistema de arquivos local. Você também pode importar um programa exportado do Mbed Online Compiler ou iniciar com um programa vazio. Você pode criar, executar e depurar programas do Mbed OS em placas de desenvolvimento suportadas pelo Mbed.
Veja aqui com importar um projeto MBED ou criar um novo!
Atenção:
Nota: O Mbed Studio usa pyOCD para se comunicar com a plataforma conectada. Se você tentar executar um programa em uma plataforma com uma versão DAPLink que não seja suportada pelo pyOCD, ele falhará com o código de saída 1. Ainda estamos adicionando suporte ao pyOCD e mais plataformas estarão disponíveis ao longo do tempo. Sugiro ST-LINK-V2.
Tenha certeza que pyocd esteja funcionando!
Atualize o firmware do seu ST-LINK V2
Apagando
Gravando
PREPARANDO U-BLOX NINA B112
No MBED STUDIO você deve importar a seguinte URL
Uma vez importado, selecionar NRF52_DK como Target. Foi tentado o Target u-blox-EVK-nina-B112, mas o mesmo não está na lista para uso da LIB MBED (Modem)
Altere mbed_app.json para
Nesta arquivo tem:
- Configuração do servidor que o U-BLOX NINA B112 vai acessar via MODEM (ECHO SERVER) ;
- Identificação dos pinos do U-BLOX NINA B112 ligados ao modem;
- Taxa de comunicação com o MODEM (Baud);
- Credenciais da operadora (APN);
- Identificação se utilizará comandos AT ou PPP para se comunicar com servidor;
- Taxa de comunicação do console.
{
"config": {
"sock-type": "TCP",
"echo-server-hostname": {
"help": "Echo server host name.",
"value": "\"echo.mbedcloudtesting.com\""
},
"echo-server-port": {
"help": "Echo server port number.",
"value": 7
},
"trace-level": {
"help": "Options are TRACE_LEVEL_ERROR,TRACE_LEVEL_WARN,TRACE_LEVEL_INFO,TRACE_LEVEL_DEBUG",
"macro_name": "MBED_TRACE_MAX_LEVEL",
"value": "TRACE_LEVEL_INFO"
},
"uart_0_fifo_size": {
"help": "UART0 FIFO buffer. FIFO buffer is filled from DMA buffer.",
"value": 1024
},
"uart_1_fifo_size": {
"help": "UART1 FIFO buffer. FIFO buffer is filled from DMA buffer.",
"value": 1024
}
},
"target_overrides": {
"*": {
"target.network-default-interface-type": "CELLULAR",
"mbed-trace.enable": false,
"lwip.ipv4-enabled": true,
"ppp.ipv4-enabled": false,
"lwip.ipv6-enabled": false,
"ppp.ipv6-enabled": false,
"lwip.ethernet-enabled": false,
"lwip.ppp-enabled": false,
"lwip.tcp-enabled": false,
"platform.stdio-convert-newlines": false,
"platform.stdio-baud-rate": 115200,
"platform.default-serial-baud-rate": 115200,
"platform.stdio-buffered-serial": true,
"cellular.debug-at": true,
"cellular.use-apn-lookup": true,
"nsapi.default-cellular-sim-pin": null,
"nsapi.default-cellular-plmn": null,
"nsapi.default-cellular-apn": "\"java.claro.com.br\"",
"nsapi.default-cellular-username": "\"claro\"",
"nsapi.default-cellular-password": "\"claro\"",
"UBLOX_AT.tx": "p8",
"UBLOX_AT.rx": "p11",
"UBLOX_AT.provide-default": true
},
"NRF52_DK": {
"target.macros_add": ["UBX_MDM_SARA_G3XX", "UBX_MDM_SARA_G350"]
}
},
"name": "UBLOX_AT",
"config": {
"tx": {
"help": "TX pin for serial connection. D1 assumed if Arduino Form Factor, needs to be set/overwritten otherwise.",
"value": "p8"
},
"rx": {
"help": "RX pin for serial connection. D0 assumed if Arduino Form Factor, needs to be set/overwritten otherwise.",
"value": "p11"
},
"rts": {
"help": "RTS pin for serial connection",
"value": "p31"
},
"cts": {
"help": "CTS pin for serial connection",
"value": "p7"
},
"baudrate" : {
"help": "Serial connection baud rate",
"value": 115200
},
"provide-default": {
"help": "Provide as default CellularDevice [true/false]",
"value": true
}
}
}
Alterar PinNames.h para termos acesso aos pinos do console do NINA B112.
/*
* Copyright (c) 2016 Nordic Semiconductor ASA
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
*
* 2. Redistributions in binary form, except as embedded into a Nordic Semiconductor ASA
* integrated circuit in a product or a software update for such product, must reproduce
* the above copyright notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of Nordic Semiconductor ASA nor the names of its contributors may be
* used to endorse or promote products derived from this software without specific prior
* written permission.
*
* 4. This software, with or without modification, must only be used with a
* Nordic Semiconductor ASA integrated circuit.
*
* 5. Any software provided in binary or object form under this license must not be reverse
* engineered, decompiled, modified and/or disassembled.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
/* MBED TARGET LIST: NRF52_DK */
#ifndef MBED_PINNAMES_H
#define MBED_PINNAMES_H
#include "cmsis.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef enum {
PIN_INPUT,
PIN_OUTPUT
} PinDirection;
typedef enum {
p0 = 0,
p1 = 1,
p2 = 2,
p3 = 3,
p4 = 4,
p5 = 5,
p6 = 6,
p7 = 7,
p8 = 8,
p9 = 9,
p10 = 10,
p11 = 11,
p12 = 12,
p13 = 13,
p14 = 14,
p15 = 15,
p16 = 16,
p17 = 17,
p18 = 18,
p19 = 19,
p20 = 20,
p21 = 21,
p22 = 22,
p23 = 23,
p24 = 24,
p25 = 25,
p26 = 26,
p27 = 27,
p28 = 28,
p29 = 29,
p30 = 30,
p31 = 31,
P0_0 = p0,
P0_1 = p1,
P0_2 = p2,
P0_3 = p3,
P0_4 = p4,
P0_5 = p5,
P0_6 = p6,
P0_7 = p7,
P0_8 = p8,
P0_9 = p9,
P0_10 = p10,
P0_11 = p11,
P0_12 = p12,
P0_13 = p13,
P0_14 = p14,
P0_15 = p15,
P0_16 = p16,
P0_17 = p17,
P0_18 = p18,
P0_19 = p19,
P0_20 = p20,
P0_21 = p21,
P0_22 = p22,
P0_23 = p23,
P0_24 = p24,
P0_25 = p25,
P0_26 = p26,
P0_27 = p27,
P0_28 = p28,
P0_29 = p29,
P0_30 = p30,
P0_31 = p31,
LED1 = p17,
LED2 = p18,
LED3 = p19,
LED4 = p20,
BUTTON1 = p13,
BUTTON2 = p14,
BUTTON3 = p15,
BUTTON4 = p16,
RX_PIN_NUMBER = p5,
TX_PIN_NUMBER = p6,
CTS_PIN_NUMBER = p3,
RTS_PIN_NUMBER = p2,
// mBed interface Pins
CONSOLE_TX = TX_PIN_NUMBER,
CONSOLE_RX = RX_PIN_NUMBER,
#if defined(MBED_CONF_TARGET_STDIO_UART_TX)
STDIO_UART_TX = MBED_CONF_TARGET_STDIO_UART_TX,
#else
STDIO_UART_TX = CONSOLE_TX,
#endif
#if defined(MBED_CONF_TARGET_STDIO_UART_RX)
STDIO_UART_RX = MBED_CONF_TARGET_STDIO_UART_RX,
#else
STDIO_UART_RX = CONSOLE_RX,
#endif
STDIO_UART_CTS = CTS_PIN_NUMBER,
STDIO_UART_RTS = RTS_PIN_NUMBER,
SPI_PSELMOSI0 = p23,
SPI_PSELMISO0 = p24,
SPI_PSELSS0 = p22,
SPI_PSELSCK0 = p25,
SPI_PSELMOSI1 = p12,
SPI_PSELMISO1 = p13,
SPI_PSELSS1 = p11,
SPI_PSELSCK1 = p14,
SPIS_PSELMOSI = p12,
SPIS_PSELMISO = p13,
SPIS_PSELSS = p11,
SPIS_PSELSCK = p14,
I2C_SDA0 = p26,
I2C_SCL0 = p27,
D0 = p11,
D1 = p12,
D2 = p13,
D3 = p14,
D4 = p15,
D5 = p16,
D6 = p17,
D7 = p18,
D8 = p19,
D9 = p20,
D10 = p22,
D11 = p23,
D12 = p24,
D13 = p25,
D14 = p26,
D15 = p27,
A0 = p3,
A1 = p4,
A2 = p28,
A3 = p29,
A4 = p30,
A5 = p31,
// Not connected
NC = (int)0xFFFFFFFF
} PinName;
typedef enum {
PullNone = 0,
PullDown = 1,
PullUp = 3,
PullDefault = PullUp
} PinMode;
#ifdef __cplusplus
}
#endif
#endif
Compile o Programa main.cpp (demorado). O mesmo acessará o servidor echo.mbedcloudtesting.com e então mandar um STRING e a mesma será mandada de volta.
Grave
Nestes testes utilizei o SEGGER J-LINK
Veja os comandos AT enviados pelo MBED ao MODEM
AT
ATE0
AT+CMEE=1
AT+CFUN=1
AT+CPIN?
AT+COPS?
AT+CGREG=2
AT+CREG=2
AT+CGACT?
AT+CGATT?
AT+CGEREP=1
AT+CSQ
AT+CSQ
AT+CGREG?
AT+CSQ
AT+CGATT?
AT+UPSND=0,8
AT+UPSD=0,1,"java.claro.com.br"
AT+UPSD=0,2,"claro"
AT+UPSD=0,3,"claro"
AT+UPSD=0,7,"0.0.0.0"
AT+UPSD=0,6,2
AT+UPSDA=0,3
AT+UPSND=0,8
AT+UPSND=0,0
AT+UDNSRN=0,"echo.mbedcloudtesting.com"
AT+USOCR=6
AT+USOCO=0,"52.215.34.155",7
AT+USOWR=0,49
TESTANDO ENVIO DE PACOTES!!!!!!!!!!!AT+USORD=0,1024
AT+USOCL=0
Veja as respostas do MODEM ao MBED
AT
OK
ATE0
OK
OK
OK
+CPIN: READY
OK
+COPS: 0
OK
OK
OK
OK
+CGATT: 0
OK
OK
+CREG: 1,"066F","4E56"
+CGREG: 1,"066F","4E56"
+CSQ: 24,0
OK
+CSQ: 24,0
OK
+CGREG: 2,1,"066F","4E56"
OK
+CSQ: 24,0
OK
+CGATT: 1
OK
+UPSND: 0,8,0
OK
OK
OK
OK
OK
OK
OK
+UPSND: 0,8,1
OK
+UPSND: 0,0,"10.182.201.74"
OK
+UDNSRN: "52.215.34.155"
OK
+USOCR: 0
OK
OK
@
+USOWR: 0,49
OK
+UUSORD: 0,49
+USORD: 0,49,"TESTANDO ENVIO DE PACOTES!!!!!!!!!!!"
OK
OK
List of supported ublox modems and their respective macros are as follow:
| Ublox mbed board | Modem Name | Family Macro | Modem Macro |
| ----------- | :-----------: | :-------------: | :-------------: |
| UBLOX_C027 | SARA-G350 | `UBX_MDM_SARA_G3XX` | `UBX_MDM_SARA_G350` |
| UBLOX_C030_N211 | SARA-N211 | `UBX_MDM_SARA_N2XX` | `UBX_MDM_SARA_N211` |
| UBLOX_C030_U201 | SARA-U201 | `UBX_MDM_SARA_U2XX` | `UBX_MDM_SARA_U201` |
| UBLOX_C030_R410M | SARA-R410M | `UBX_MDM_SARA_R41XM` | `UBX_MDM_SARA_R410M` |
| UBLOX_C030_R412M | SARA-R412M | `UBX_MDM_SARA_R41XM` | `UBX_MDM_SARA_R412M` |
Questões: suporte@smartcore.com.br
FONTES:
https://os.mbed.com/teams/mbed-os-examples/code/mbed-os-example-ble-LED//file/4c62b7c6081a/source/
https://www.u-blox.com/sites/default/files/NINA-B1_DataSheet_%28UBX-15019243%29.pdf
https://os.mbed.com/teams/mbed-os-examples/code/mbed-os-example-ble-LED//file/4c62b7c6081a/source/
https://www.u-blox.com/sites/default/files/NINA-B1_DataSheet_%28UBX-15019243%29.pdf
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