6CM8
prueba para el funcionamiento de la tarjeta de comunicacion I2C
Diff: main.cpp
- Revision:
- 0:d09d48e54bdd
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Fri Oct 25 21:47:07 2019 +0000
@@ -0,0 +1,247 @@
+/* #############################################################################
+** Archivo : main.c
+** Proyecto : STM32-F103C8_I2C_Scanner
+** Procesador : STM32F103C8T6
+** Plataforma : Blue Pill
+** Herramienta : Mbed Compiler
+** 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 "stm32f103c8t6.h"
+#include "mbed.h"
+#include "I2C.h"
+#include "Serial.h"
+
+/*
+:...............................................................................
+: Definiciones
+:...............................................................................
+*/
+#define Buzz_Off 0 // Estado del Buzzer Apagado
+#define Buzz_On 1 // Estado del Buzzer Encendido
+/*
++-------------------------------------------------------------------------------
+| Configuración de Puertos
++-------------------------------------------------------------------------------
+*/
+DigitalOut led_monitor(Green_Led); // Inicializa el LED Monitor
+DigitalOut buzzer (PB_1); // Inicializa el Buzzer Piezo Eléctrico
+//Serial terminal(PA_2, PA_3); // 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 STM32F103C8
+* 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
+//Serial terminal(PA_9, PA_10); // Tx, Rx Using MAX3232 or BlueTooth
+Serial terminal(PA_2,PA_3); // Tx, Rx Terminal Serial (TTL Level)
+
+// Bluetooth Communication support
+//Serial bluetooth(PA_2, PA_3); // Tx, Rx
+
+// I2C Communication
+I2C i2c_wire(PB_7,PB_6); // SDA, SCL
+//I2C i2c_wire(PB_9,PB_8); // SDA, SCL
+//I2C i2c_wire(I2C_SDA,I2C_SCL); // SDA, SCL
+//I2C i2c_wire(PB_11,PB_10); // 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
+ confSysClock(); // Inicialización del Sistema, Configure system clock (72MHz HSE clock, 48MHz USB clock)
+ 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 (LSN 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 (MSN 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)
+ 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 */
\ No newline at end of file