Questions tagged [tm4c123g]

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31 views

help identify the SMD AK1629

Failed DVR Suspect that burned down this detail:prozvanivatsya short circuit in both sides can't understand which part to replace?
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1answer
76 views

Unable to Read BME280 using TM4C123 LaunchPAD

I'm new to the Tiva Platform for the past two days I'm trying to read data from bme280's data registers. However, it always returns a 0(I2C bus not working). So far I've tried using this sensor with ...
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2answers
82 views

Problem I2C reading RA8875 using TM4C123

I have been working with I2C protocol to create some code for the RA8875 (see for I2C from page 67) using a Tiva board (TM4C123, I2C chapter from page 997), and I was able to paint in the display or ...
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138 views

How to use Logic Analyzer and Event Viewer in Keil uVision with TM4C123GXL launchpad

I am using Keil uVision5 for programming TI launchpad TM4C123GXL with TIVA WARE Library. How to use Logic Analyzer and Event Viewer in Keil uVision ? While in a debug mode; I tried to set up ...
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153 views

TI TM4C1294 UART on Port C problem renders the board un-programmable

In the aforementioned board, port C is 8 pins in which 0-3 are used for JTAG (So 4-7 should be GPIO available right?). I am using the following code: ...
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2answers
551 views

shift by 1 bit error in SPI

I am trying to implement the SPI communication on TM4C123. I have 1 board and try to send data from SSI1(master) to SSI0(slave) but i observe that the received value is always shifted to left by 1 ...
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1answer
493 views

Interfacing three UART devices to Microcontroller without loss of data

I have a microcontroller TM4C123GXL Launchpad, that has 8 serial UART ports. I am using Keil uVision5 with Tiva Ware for programming. I wanted to interface 3 UART devices with the microcontroller ...
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2answers
484 views

Isochronous and interrupt transfers for USB, where to learn about it? [closed]

I have been working with the TM4C129 uC from texas instruments, using the bulk example code that the company provides I was able to desing an osciloscope using the analog to digital converters, it was ...
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1answer
278 views

Kiel debugger exits automatically

I am using Keil uVision5 for programming TI launchpad TM4C123GXL. The Keil work perfectly fine for Building and flashing the programs (examples projects of Tiva Ware). But when I start the Debug ...
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1answer
435 views

Quadrature encoder interface loses count

I am trying to read the encoder signal of a drive amplifier using an ARM (TM4C). The amplifier has differential outputs (+- 5V), the MCU has 2 QEIs (Quadrature Encoder Interfaces). First I have ...
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2answers
124 views

Confusion on ARM-Tiva PORTS and Registers

So im learning the Edx Embedded course "Shape the World", it's very good so far and im really learning a lot. Im in the section (6) learning about Ports and Registers. And maybe im a bit confused at ...
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153 views

Tiva C PWM pin connected to counter and XOR gate changes pulse width

I want a slow enough programmable clock for my circuit which I am generating using Tiva C PWM pins. Its a Tiva C 123GXL. The current frequency I have set is 200kHz and 50% high pulse (duty cycle). ...
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1answer
746 views

Timers in TM4C123G not working

I wanted to use timers in TM4C123GH6PM (in TIVA C series TM4C123G Launchpad evaluation kit). So I decided to use GPTM TimerA0 in periodic timer mode. I defined the address of the registers of GPTM and ...
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6answers
2k views

“Could not find Cortex-M device in the JTAG chain!” (TM4C123g)

The board was working fine but all of the sudden I can't download any code on it from Keil. Whenever I try to download code on the board, I get "Could not find Cortex-M device in the JTAG chain! ...
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2answers
754 views

Process and store GPS data on MCU

I am currently working on a GPS module from Quectel (L70). I try to interface it with MCU TM4C via UART1 to query some position then store it in the memory of the MCU and then to push those ...