Revision 0:d09d48e54bdd, committed 2019-10-25

Comitter:

Antulius

Date:

Fri Oct 25 21:47:07 2019 +0000

Commit message:

i2c

Changed in this revision

diff -r 000000000000 -r d09d48e54bdd PinNames.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PinNames.h	Fri Oct 25 21:47:07 2019 +0000
@@ -0,0 +1,201 @@
+/* mbed Microcontroller Library
+ *******************************************************************************
+ * Copyright (c) 2014, STMicroelectronics
+ * 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 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 STMicroelectronics nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * 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.
+ *******************************************************************************
+ 
+ */
+#ifndef MBED_PINNAMES_H
+#define MBED_PINNAMES_H
+
+#include "cmsis.h"
+#include "PinNamesTypes.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+//UART to AMB8826
+#define TXD1      PA_9
+#define RXD1      PA_10
+#define CTS1      PA_11
+int baudRate = 115200;
+
+//UART to Silicon Labs CP210x
+#define TXD2      PA_2
+#define RXD2      PA_3
+
+//UART to FTDI
+#define TXD3      PB_10
+#define RXD3      PB_11
+
+//I2C
+#define I2C1_SCL  PB_6
+#define I2C1_SDA  PB_7
+
+#define I2C2_SCL  PB_10
+#define I2C2_SDA  PB_11
+
+//SPI
+#define SPI1_MOSI PA_7
+#define SPI1_MISO PA_6
+#define SPI1_SCLK PA_5
+#define SPI1_NSS1 PA_4
+#define SDsel     PA_4
+
+#define SPI2_MOSI PB_15
+#define SPI2_MISO PB_14
+#define SPI2_SCLK PB_13
+#define SPI2_NSS2 PB_12
+
+//CAN
+#define CAN1_RX   PA_11
+#define CAN1_TX   PA_12
+
+//USB   CDC
+#define USB_POS   PA_12
+#define USB_NEG   PA_11
+
+//ADC
+#define Uin       PA_1
+#define Ubatt     PA_0
+
+typedef enum {
+    // Not connected
+    NC = (int)0xFFFFFFFF,
+
+    // Ports
+    PA_0  = 0x00,
+    PA_1  = 0x01,
+    PA_2  = 0x02,
+    PA_3  = 0x03,
+    PA_4  = 0x04,
+    PA_5  = 0x05,
+    PA_6  = 0x06,
+    PA_7  = 0x07,
+    PA_8  = 0x08,
+    PA_9  = 0x09,
+    PA_10 = 0x0A,
+    PA_11 = 0x0B,
+    PA_12 = 0x0C,
+    PA_13 = NC,
+    PA_14 = NC,
+    PA_15 = 0x0F,
+
+    PB_0  = 0x10,
+    PB_1  = 0x11,
+    PB_2  = NC,
+    PB_3  = 0x13,
+    PB_4  = 0x14,
+    PB_5  = 0x15,
+    PB_6  = 0x16,
+    PB_7  = 0x17,
+    PB_8  = 0x18,
+    PB_9  = 0x19,
+    PB_10 = 0x1A,
+    PB_11 = 0x1B,
+    PB_12 = 0x1C,
+    PB_13 = 0x1D,
+    PB_14 = 0x1E,
+    PB_15 = 0x1F,
+
+    PC_0  = NC,
+    PC_1  = NC,
+    PC_2  = NC,
+    PC_3  = NC,
+    PC_4  = NC,
+    PC_5  = NC,
+    PC_6  = NC,
+    PC_7  = NC,
+    PC_8  = NC,
+    PC_9  = NC,
+    PC_10 = NC,
+    PC_11 = NC,
+    PC_12 = NC,
+    PC_13 = 0x2D,
+    PC_14 = 0x2E,
+    PC_15 = 0x2F,
+
+    PD_2  = NC,
+
+    // ADC internal channels
+    ADC_TEMP = 0xF0,
+    ADC_VREF = 0xF1,
+
+    // Arduino connector namings
+    A0          = PA_0,
+    A1          = PA_1,
+    A2          = PA_4,
+    A3          = PB_0,
+    A4          = NC,
+    A5          = NC,
+    D0          = PA_3,
+    D1          = PA_2,
+    D2          = PA_10,
+    D3          = PB_3,
+    D4          = PB_5,
+    D5          = PB_4,
+    D6          = PB_10,
+    D7          = PA_8,
+    D8          = PA_9,
+    D9          = NC,
+    D10         = PB_6,
+    D11         = PA_7,
+    D12         = PA_6,
+    D13         = PA_5,
+    D14         = PB_9,
+    D15         = PB_8,
+
+    // Generic signals namings
+    Red_Led     = NC,
+    Green_Led   = PC_13,
+    Blue_Led    = NC,
+    LED1        = PC_13,
+    LED2        = NC,
+    LED3        = NC,
+    LED4        = NC,
+    USER_BUTTON = NC,    
+    SERIAL_TX   = PA_2,
+    SERIAL_RX   = PA_3,
+    USBTX       = PA_12,
+    USBRX       = PA_11,
+    CANRX       = PB_8,    
+    CANTX       = PB_9,
+    I2C_SCL     = PB_6,
+    I2C_SDA     = PB_7,
+    SPI_MOSI    = PA_7,
+    SPI_MISO    = PA_6,
+    SPI_SCK     = PA_5,
+    SPI_CS      = PA_4,
+    TRACE_SWO   = PB_3,
+    SWO         = PB_3
+} PinName;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

diff -r 000000000000 -r d09d48e54bdd SysClockConf.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SysClockConf.cpp	Fri Oct 25 21:47:07 2019 +0000
@@ -0,0 +1,56 @@
+/*
+  ******************************************************************************
+  * @file    SysClockConf.c
+  * @version 
+  * @date    05-July-2016
+  * @brief   System Clock configuration for STM32F103C8T6
+  *****************************************************************************
+  *
+  * All rights reserved.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  */
+
+#include "SysClockConf.h"
+#include "mbed.h"
+
+void HSE_SystemClock_Config(void) {
+    RCC_OscInitTypeDef        RCC_OscInitStruct;
+    RCC_ClkInitTypeDef        RCC_ClkInitStruct;
+    RCC_PeriphCLKInitTypeDef  PeriphClkInit;
+
+    RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
+    RCC_OscInitStruct.HSEState = RCC_HSE_ON;
+    RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
+    RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
+    RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
+    RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
+    HAL_RCC_OscConfig(&RCC_OscInitStruct);
+    RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
+    RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
+    RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
+    RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
+    RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
+    HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2);
+    PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_ADC|RCC_PERIPHCLK_USB;
+    PeriphClkInit.AdcClockSelection = RCC_ADCPCLK2_DIV6;
+    PeriphClkInit.UsbClockSelection = RCC_USBCLKSOURCE_PLL_DIV1_5;
+    HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit);
+}
+
+void confSysClock(void) {
+    HAL_RCC_DeInit();
+    HSE_SystemClock_Config();
+    SystemCoreClockUpdate();
+}
\ No newline at end of file

diff -r 000000000000 -r d09d48e54bdd SysClockConf.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SysClockConf.h	Fri Oct 25 21:47:07 2019 +0000
@@ -0,0 +1,2 @@
+#pragma once
+void confSysClock(void);
\ No newline at end of file

diff -r 000000000000 -r d09d48e54bdd TextLCD.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TextLCD.lib	Fri Oct 25 21:47:07 2019 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/teams/IPN-ESIME-ZACATENCO/code/TextLCD/#844090a5557e

diff -r 000000000000 -r d09d48e54bdd main.cpp
--- /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

diff -r 000000000000 -r d09d48e54bdd mbed.bld
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Fri Oct 25 21:47:07 2019 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/mbed_official/code/mbed/builds/65be27845400
\ No newline at end of file

diff -r 000000000000 -r d09d48e54bdd stm32f103c8t6.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/stm32f103c8t6.h	Fri Oct 25 21:47:07 2019 +0000
@@ -0,0 +1,4 @@
+#pragma once
+#include "PinNames.h"
+#include "SysClockConf.h"
+