CURSO_MBED
FRDM-KL46Z_I2C-Scanner Es un programa para detectar los dispositivos conectados al Bus I2C
main.cpp
- Committer:
- Antulius
- Date:
- 2019-07-03
- Revision:
- 7:e8b0b94a5cdf
- Parent:
- 6:333a2763ad29
File content as of revision 7:e8b0b94a5cdf:
/* ###########################################################################
** Archivo : main.c
** Proyecto : FRDM-KL46Z_I2C_Scanner
** Procesador : MKL46Z256VLL4
** Herramienta : Mbed
** Version : Driver 01.01
** Compilador : GNU C Compiler
** Fecha/Hora : 14-07-2015, 11:48, # CodeGen: 0
** Descripción :
** Esta utileria inspecciona el bus I2C y enumera los dispositivos
** conectados. Proporciona su dirección base (en DEC y HEX).
** Componentes : I2C, Serial and Digital Output.
** Configuraciones : Includes, Stacks y Drivers externos
** Autores :
** ATEAM Development Group:
** - Antulio Morgado Valle
**
** Versión : Beta
** Revisión : A
** Release : 0
** Date : 20/10/2019
** Bugs & Fixes :
**
** Permission is hereby granted, free of charge, to any person obtaining a copy
** of this software and associated documentation files (the "Software"), to deal
** in the Software without restriction, including without limitation the rights
** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
** copies of the Software, and to permit persons to whom the Software is
** furnished to do so, subject to the following conditions:
**
** The above copyright notice and this permission notice shall be included in
** all copies or substantial portions of the Software.
**
** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
** THE SOFTWARE.
** ###########################################################################*/
/*
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
: Includes
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*/
#include "mbed.h"
#include "I2C.h"
#include "Serial.h"
//#include "stdio.h"
/*
:...............................................................................
: Definiciones
:...............................................................................
*/
#define on 0 // Estado para boton presionado
#define off 1 // Estado para boton sin presionar
#define Buzz_Off 0 // Estado del Buzzer Apagado
#define Buzz_On 1 // Estado del Buzzer Encendido
/*
+-------------------------------------------------------------------------------
| Configuración de Puertos
+-------------------------------------------------------------------------------
*/
DigitalOut led_monitor(LED1); // Inicializa el LED Monitor
DigitalOut buzzer (PTE31); // Inicializa el Buzzer Piezo Eléctrico
//Serial terminal(USBTX, USBRX); // Inicializa la Comunicación Serial a la PC
/*
** -------------------------------------------------------------------
** Inicialización de los Pines de Funciones Especiales.
** -------------------------------------------------------------------
*/
/*************************************************
* Initialize the library with the numbers of the interface pins
* Board FRDM-KL46Z
* IDE Mbed On Line Compiler
* LCD I2C PCF8574A
* Pin Board LCD
* I2C_SCL SCL (white) + resistance pull-up 4.7k
* I2C_SDA SDA (blue) + resistance pull-up 4.7k
* 5V 5V (red)
* GND GND (black)
***************************************************/
//LiquidCrystal_I2C lcd(0x7E, LCDCOLUMNAS, LCDFILAS);
//i2c_LCD lcd(0x7E, LCDCOLUMNAS, LCDFILAS);
/**************************************************/
// Host PC Communication channels
Serial terminal(USBTX, USBRX); // Tx, Rx (SDA USB terminal)
//Serial terminal(PTE0, PTE1); // Tx, Rx Using MAX3232 or BlueTooth
//Serial terminal(PTA2,PTA1); // Terminal Serial (TTL Level)
// Bluetooth Communication support
//Serial bluetooth(PTE0, PTE1); // Tx, Rx
// I2C Communication
I2C i2c_wire(PTC2,PTC1); // SDA, SCL
//I2C i2c_wire(PTC9,PTC8); // SDA, SCL
//I2C i2c_wire(I2C_SDA,I2C_SCL); // SDA, SCL
//I2C i2c_wire(PTE0,PTE1); // SDA, SCL (Alternativo)
/*
+-------------------------------------------------------------------------------
| Variables Globales de Usuario
+-------------------------------------------------------------------------------
*/
// Las variables globales del usuario van aquí !
/*
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
| Definición de Funciones Prototipo y Rutinas de los Vectores de Interrupción
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
*/
void I2C_Scanner(void);
/* END definitions */
/*
#===============================================================================
|
| P R O G R A M A P R I N C I P A L
|
#===============================================================================
*/
int main()
{ // Inicialización de variables, puertos e interrupciones
terminal.baud(115200); // Se configura la velocidad de transmisión e inicia la comunicación serial.
terminal.printf(" System is Wake Up!.\n\r");
/* Prueba del Buzzer */
terminal.printf("Testing Buzzer... \n\r");
buzzer = Buzz_On;
wait_ms(750);
buzzer = Buzz_Off;
wait_ms(125);
buzzer = Buzz_On;
wait_ms(250);
buzzer = Buzz_Off;
wait_ms(125);
buzzer = Buzz_On;
wait_ms(500);
buzzer = Buzz_Off;
while (true) // El Lazo del Programa principal está aquí !!!
{
I2C_Scanner();
terminal.printf ("\n\rVolver a Diagnosticar?\n\r");
getchar();
}
}
/* END main */
/*
................................................................................
: Rutinas de los Vectores de Interrupción
................................................................................
*/
// Los Servicios a Interrupciones van aquí !
/* END events */
/*
________________________________________________________________________________
|
| Funciones Prototipo
|_______________________________________________________________________________
*/
// Las Funciones Prototipo van aquí !
void I2C_Scanner()
{
terminal.printf ("I2C scanner. Scanning ...");
uint8_t count = 0;
// char test[] = {0x55,0xAA,0x0F,0xF0,0xFF,0x00};// Patrón de Prueba
char test[] = { 0b00000000, 0b00000000, // Datos en DB7=DB6=DB5=DB4=0, LED+=0, EN=0,RW=0,RS=0 // Patrón de Prueba LCD (MSN first)
0b00111110, 0b00111010, // Datos en DB5=DB4=1, LED+=1, EN=1,0,RW=1,RS=0
0b00111110, 0b00111010, // Datos en DB5=DB4=1, LED+=1, EN=1,0,RW=1,RS=0
0b00111110, 0b00111010, // Datos en DB5=DB4=1, LED+=1, EN=1,0,RW=1,RS=0
0b00101110, 0b00100010, // Datos en DB5=1, LED+=1, EN=1,0,RW=1,RS=0
0b00101110, 0b00100010, // => Function Set Control: DB5=1, LED+=1, EN=1,0,RW=1,RS=0
0b10001110, 0b10001110, // => Function Set Control: DB7=N=1 2 líneas, DB6=F=0 5x7puntos, LED+=1, EN=1,0,RW=1,RS=0
0b00001110, 0b00000010, // => Display ON/OFF Control: DB7=DB6=DB5=DB4=0, LED+=1, EN=1,0,RW=1,RS=0
0b00101110, 0b00100010, // => Display ON/OFF Control: DB7=1 (Display off, cursor off, blink off),LED+=1, EN=1,0,RW=1,RS=0
0b00001110, 0b00000010, // => Display Clear: DB7=DB6=DB5=DB4=0, LED+=1, EN=1,0,RW=1,RS=0
0b00011110, 0b00010010, // => Display Clear: D4=1, LED+=1, EN=1,0,RW=1,RS=0
0b00001110, 0b00000010, // => Cursor Home: DB7=DB6=DB5=DB4=0, LED+=1, EN=1,0,RW=1,RS=0
0b00101110, 0b00100010, // => Cursor Home: DB5=1, LED+=1, EN=1,0,RW=1,RS=0 , (Cursor Home};
0b01001111, 0b00001011, // => Text 0x48: DB5=1, LED+=1, EN=1,0,RW=1,RS=1
0b10001111, 0b00101011, // => Text "H" : DB7=1, LED+=1, EN=1,0,RW=1,RS=1 , (ASCII "H"}
0b01101111, 0b01101011, // => Text 0x6F: DB5=1, LED+=1, EN=1,0,RW=1,RS=1
0b11111111, 0b11111011, // => Text "o" : DB7=DB6=DB5=DB4=1, LED+=1, EN=1,0,RW=1,RS=1 , (ASCII "o"}
0b01101111, 0b01101011, // => Text 0x6C: DB6=DB5=1, LED+=1, EN=1,0,RW=1,RS=1
0b11001111, 0b11001011, // => Text "l" : DB7=DB6=1, LED+=1, EN=1,0,RW=1,RS=1 , (ASCII "l"}
0b01101111, 0b01101011, // => Text 0x61: DB6=DB5=1, LED+=1, EN=1,0,RW=1,RS=1
0b00011111, 0b00011011, // => Text "a" : DB4=1, LED+=1, EN=1,0,RW=1,RS=1 , (ASCII "a"}
0b00101111, 0b00101011, // => Text 0x21: DB5=1, LED+=1, EN=1,0,RW=1,RS=1
0b00011111, 0b00011011};// => Text "!" : DB4=1, LED+=1, EN=1,0,RW=1,RS=1 , (ASCII "!"}
/*
char test[] = { 0b00000000, 0b00000000, // RS=0,RW=1, EN=0, LED+=1, DB4=DB5=DB6=DB7=0 // Patrón de Prueba para LCD (LSN first)
0b01111100, 0b01011100, // RS=0,RW=1, EN=1,0, LED+=1, DB5=DB4=1 en datos,
0b01111100, 0b01011100, // RS=0,RW=1, EN=1,0, LED+=1, DB5=DB4=1 en datos,
0b01111100, 0b01011100, // RS=0,RW=1, EN=1,0, LED+=1, DB5=DB4=1 en datos,
0b01110100, 0b01010100, // RS=0,RW=1, EN=1,0, LED+=1, DB5=1 en datos,
0b01100100, 0b00100100, // => Function Set Control: RS=0, RW=1, EN=1,0, LED+=1, DB5=1 en datos,
0b01100110, 0b00100001, // => Function Set Control: RS=0, RW=1, EN=1,0, LED+=1, DB7=N=1 2 líneas, DB6=F=0 5x7puntos,
0b01100000, 0b00100000, // => Display ON/OFF Control: RS=0, RW=1, EN=1,0, LED+=1, DB4=DB5=DB6=DB7=0 en datos,
0b01100001, 0b00100001, // => Display ON/OFF Control: RS=0, RW=1, EN=1,0, LED+=1, DB7=1 (Display off, cursor off, blink off)
0b01100000, 0b00100000, // => Display Clear: RS=0, RW=1, EN=1,0, LED+=1, DB4=DB5=DB6=DB7=0 en datos
0b01101000, 0b00101000, // => Display Clear: RS=0, RW=1, EN=1,0, LED+=1, DB4=1 en datos, (Clear Diplay)
0b01100000, 0b00100000, // => Cursor Home: RS=0, RW=1, EN=1,0, LED+=1, DB4=DB5=DB6=DB7=0 en datos
0b01101000, 0b00101000, // => Cursor Home: RS=0, RW=1, EN=1,0, LED+=1, DB5=1 en datos, (Cursor Home)
0b11110100, 0b11010100, // => Text 0x48: RS=1, RW=1, EN=1,0, LED+=1, DB5=1, (ASCII "H")
0b11110001, 0b11010001, // => Text "H" : RS=1, RW=1, EN=1,0, LED+=1, DB7=1
0b11110110, 0b11010110, // => Text 0x6F: RS=1, RW=1, EN=1,0, LED+=1, DB5=DB6=1, (ASCII "o")
0b11111111, 0b11011111, // => Text "o" : RS=1, RW=1, EN=1,0, LED+=1, DB4=DB5=DB6=DB7=1
0b11110110, 0b11010110, // => Text 0x6C: RS=1, RW=1, EN=1,0, LED+=1, DB5=DB6=1, (ASCII "l")
0b11110011, 0b11010011, // => Text "l" : RS=1, RW=1, EN=1,0, LED+=1, DB6=DB7=1
0b11110110, 0b11010110, // => Text 0x61: RS=1, RW=1, EN=1,0, LED+=1, DB5=DB6=1, (ASCII "a")
0b11111000, 0b11011000, // => Text "a" : RS=1, RW=1, EN=1,0, LED+=1, DB4=1
0b11110100, 0b11010100, // => Text 0x21: RS=1, RW=1, EN=1,0, LED+=1, DB5=1, (ASCII "!")
0b11111000, 0b11011000};// => Text "!" : RS=1, RW=1, EN=1,0, LED+=1, DB4=1
*/
i2c_wire.frequency(100000); // Frecuencia de operación para el I2C (100KHz)
i2c_wire.start(); // Inicio de operación para el I2C
for (int i = 8; i < 128; i++)
{
uint8_t acknoledge = i2c_wire.write (i,test,46,1); //(dirección, ap_datos, N°_datos, repetición de stop)
if (acknoledge == 0)
{
terminal.printf ("\n\rFound address: ");
terminal.printf ("%u DEC",i); // Valor de la dirección en Decimal
terminal.printf (" (0x%x HEX)\n\r",i); // Valor de la dirección en Hexadecimal
// terminal.printf (" (0x%hd HEX)\n\r",i); // Valor de la dirección en Hexadecimal
count++;
wait (1); // tal vez innecesario?
} // end of good response
led_monitor = !led_monitor; // Parapadeo del LED
} // end of for loop
led_monitor = 1; // Apaga el LED
i2c_wire.stop(); // Fin de operación para el I2C
terminal.printf ("\n\rDone.\n\r");
terminal.printf ("Found %d Device(s)\n\r",count);
} // end of setup
/* END functions */
/* END program */
/* END Mbed */