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Found 20 results

  1. I'm trying to read two encoders to know the angular position using interrupts but something is wrong, the code compiles but in serial just prints "0", what can i change? volatile long Left_Encoder_Ticks = 0; volatile bool LeftEncoderBSet; #define Right_Encoder_PinA PC_5 #define Right_Encoder_PinB PC_6 volatile long Right_Encoder_Ticks = 0; volatile bool RightEncoderBSet; void setup() { Serial.begin(9600); SetupEncoders(); } void SetupEncoders() { pinMode(Left_Encoder_PinA, INPUT_PULLUP); pinMode(Left_Encoder_PinB, INPUT_PULLUP); a
  2. Hi, I have TM4C123GXL launchpad and want to interface a TFT LCD (2.0 inch TFT ILI9225) with it. I am using energia platform but I am not able to find any compatible libraries for the same. Kindly suggest me a way out or suggest a new 2.0/2.2 inch LCD compatible with the board. Below is the link of the LCD https://robu.in/product/2-0-inch-spi-tft-lcd-color-screen-module-ili9225-serial-interface-176-x-220/?gclid=EAIaIQobChMIoMPU--ip4gIVwYiPCh0WkwyHEAYYASABEgLECvD_BwE
  3. Hello everyone! I am using the SIM800L module to send SMS through a TivaC TM4C123GXL board, but its clock is 80MHz, and the library only accepts 20, 16 or 8 MHz. In Arduino it worked perfectly, this code found on a website. How do I reduce the TM4C123 clock in Power software? Is there another solution? Thanks in advance! The code: #include <SoftwareSerial.h> SoftwareSerial sim(3, 4); int _timeout; String _buffer; String number = ""; //here I inserted my number phone void setup() { delay(4000); //delay for 7 seconds to make sure the modules get the signal Serial.begin(960
  4. Hi all! We are using Tiva C series MCUs (TM4C1294XL and TM4C123GXL) for a project in IICDC 2019 but we are facing problems while implementing Controller Area Network protocol (CAN Protocol) using them. I've attached the basic code for sending messages via CAN protocol form one MCU to other but the problem is, it is not doing so as a message sent from one MCU is received by itself and not by other MCU in the network. We've tried using the filters as well but no progress. Any help would be really appreciated. P.S. - Do we require an extra CAN transceiver boosterpack for these modules
  5. I am using TM4C123GXL and for some reason I am getting garbage values when I try to read the values from PB1 pin. I flashed this simple code to test the UART: void setup() { // initialize ports: Serial.begin(115200); //connected with USB } void loop() { Serial.print("E"); delay(200); } But instead of 'E' I see these garbage values: ;����������� I am reading using the same 115200 baud rate. What am I doing wrong? May be I do not flash the code correctly? I simply put the device into DEBUG mode and connect to my Ubuntu PC using the top micro USB port (red LE
  6. Hello. I have been trying to create a serial link between the Launchpad (based on tm4c123gh6pm) and my cellphone. The code is very simple for testing purpose. Here is it: /* This is a demo code for testing Bluetooth functionality ->The peripheral used here was a smartphone; and to obtain the values of 'i' on the terminal of the device, the "display mode" setting must be changed to ' HEX' ->The code doesn't work properly on when the pin 10 and 11 are used as RX and TX ->It has been successfully tested to sen
  7. i'm designing an embedded control system that i've prototyped with the TM4C123GXL Launchpad. i like the processor (TM4C123GH6PM) and need the speed. i'm experienced with code, hardware, board layout, etc. my question seems to be somewhat between a TI/hardware issue and an Energia software issue. for various reasons (including a desire to let eventual end-users write code for it) i want to use the Energia IDE with boards of my own design, that use only native USB, and not the secondary debug processor. the bootstrap process remains fairly opaque; i've read the datasheet and ROM app no
  8. Hello! I m trying to run the code for the coin acceptor mechanism. its getting compiled properly on but on updation it is showing no output on serial monitor i.e serial monitor is completely blank. Since i m using Energia IDE for TM4C123gxl so i have tried the same code on Arduino IDE as well and over there it is giving the exact output as i want. and all the things are correctly selected ie the port, board and everything. What could be the problem? Code.txt
  9. hi, I am new here, I purchased launchpad tm4c123gxl for learning purpose,can anyone help me from where i can start? I have good internet access and laptop. Thanks for help
  10. Hi , I had a problem blinking a Led in a simulink model using Embedded Coder For Energia package(having a pulse generator and digital output on pin 39) , it gives me that error and am irritated about it : 'C:/Program' is not recognized as an internal or external command, operable program or batch file. gmake: * [Tawfiks.o] Error 1### Creating HTML report file Tawfiks_codegen_rpt.html### Build procedure for model: 'Tawfiks' aborted due to an error.Error(s) encountered while building "Tawfiks":### Failed to generate all binary outputs. Any idea how to solve this problem?
  11. Hello I have problems with the two NRF24L01 and two tm4c123gxl. I can not get it running. Pins 1. Tm4c123gxl (RX): PC_6 (CE), PD_2 (MISO), PD_3 (MOSI), PD_1 (CS), PD_0 (SCK), PE_1 (IRQ) Pins 2. Tm4c123gxl (TX): PC_7 (CE), PD_2 (MISO), PD_3 (MOSI), PD_1 (CS), PD_0 (SCK), PE_1 (IRQ) I will use a simply Sketch. I have found this in the Forum [Energia Library] Nordic nRF24L01+ library I have download this Enrf24_v1_8.zip from the Forum. Enerf24_RXdemo #include <Enrf24.h> #include <nRF24L01.h> #include <string.h> #include <
  12. Hello I hope you can understand my english I have a texas instruments tm4c123gxl with a SainSmart IIC/I2C/TWI Serial 2004 20x4 LCD Module. I will connect this Display over I²C. For the 5V Supply voltage i have use the VBus on the tm4c... For the SDA/SCL i have use the pin PA6 and PA7. Does it work like this? or need a Logic Level Converter - Bi-Directional for the SDA/SCL Line? from 3,3V to 5V. I have use a Pullup resistor for the Line SDA/SCL, how in the datasheet from the tm4c. And i have use this Code: #include <Wire.h> #include <LiquidCrystal
  13. Does Energia support Anaren A2530E24A-LPZ ZigBee module? Specifically for TM4C123GXL Launchpad (or TM4C129 Launchpad)? If so, how can I get some code samples? Anaren site only has example for CCS. If not, does Energia support any other ZigBee module to work with TivaC?
  14. Using a tm4c123gxl, on a mac (10.11.6) the online documentation says no drivers are required, but when I plug the board in, there is no recognition and no LEDs come on. I checked the mac ports and it also doesn't show there. Is there a driver that must be installed to start using my board?
  15. Hi!, I'm try to connect tm4c123gxl with esp8266: esp8266 tm4c GND GND VCC +3.3V CH_PD +3.3V Rx PD7 (Tx 2) Tx PD6 (Rx 2) I tested with "AT" command, if it's success, it will return "OK". Here is my code: void setup() { Serial2.begin(115200); Serial.begin(9600); Serial2.write("AT"); } //------------------------------------------------------------ void loop() { while (Serial2.available()){ char result = Serial2.read(); Serial.print("Serial2 result:\t"); Serial.print(result); Serial.print
  16. Hello ! I'm a student, I wonder if tm4c123gxl can write firmware to esp8266, because I see tm4c has Tx and Rx pins, or I have to buy a USB to TTL ? Here is my firmware I want to flash to esp8266 https://github.com/tuanpmt/esp_mqtt Thank you very much
  17. Hello! I am using Energia to program TM4C123GXL board. The program performs a primitive data acquisition with low frequency and stores it (together with timestamps) as an array in RAM. I would like to store data in EEPROM or, preferebly in FLASH. Micro-controller has 256kB flash. How can I save data there? There is flash API (flash.h and flash.c) in lm4f/driverlib/ though I am not sure even at which address range I can write/erase data? Can anybody point out to a working example? thanks for help!
  18. I am developing data acquisition using TM4C123GXL with Energia. I able to acquire signal of 20hz even my ADC has sampling rate of 1M/s. I need suggestion regarding how to increase acqusition bandwidth(higher range frequency)....
  19. Hi All, I am using Energia 0101E0012 / TIVA TM4C123GXL / CC3000BOOST trio and trying to develop an application that will use SmartConfig feature. I have tried the released WiFi examples of SmartLinkWiFi library and they are working perfectly. I have tried to debug Energia code using Code Composer Studio V6 but it also did not help me much. After searcing for a solution I have seen some firmware update entries in different forums. Then I have updated my firmware from 1.24 to 1.26. But this update did not helped me. After FirmwareUpdate I have followed the suggestion of http://forum.43oh.
  20. TM4C123GXL LaunchPad Workshop Lab7 (bulk transfer-mode USB) requires a client program to exchange text data with the LaunchPad loaded with the project code. TI has provided a client working on WINDOWS. Those working on Linux platforms require an implementation. I have written a "first-cut" version, source attached. It uses libusb. It does not implement the speed statistics calculations, though the required counters are there.usb_bulk_example.c
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