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Questions tagged [texas-instruments]

Texas Instruments Inc. (TI) is an American company that designs and makes semiconductors, which it sells to electronics designers and manufacturers globally.

Texas Instruments Inc. (TI) is an American company that designs and makes semiconductors, which it sells to electronics designers and manufacturers globally.
Headquartered at Dallas, Texas, United States, TI is the third largest manufacturer of semiconductors worldwide after Intel and Samsung, the second largest supplier of chips for cellular handsets after Qualcomm, and the largest producer of digital signal processors (DSPs) and analog semiconductors, among a wide range of other semiconductor products, including calculators, microcontrollers and multi-core processors.
Texas Instruments is among the Top 20 Semiconductor producing companies in the world.
Texas Instruments was founded in 1951.

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TI OMAPL137 U-Boot Error: "No ethernet found."

I am trying to boot a DA830 REV A board that was shipped to me with U-Boot loaded without Linux. I was able to build DaVinci Linux and a root file system, and now I want to load Linux using tftp. I booted the board but am getting an error that "No…
Samuel
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CC2540 USB - make discoverable: Not ready to perform task

I am using the TI CC2540 USB dongle in peripheral mode and want to enable advertising, using BTool, but the device is answering: Not Ready To Perform Task I know that it's possible to set initial advertising enable in the application code, but I…
Till Riemer
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Error while trying to call a class method: attempt to index local 'self' (a nil value) - Lua

I'm creating a lua script that should run on the TI-Nspire calculator. The problem is that while running my script I get the error Attempt to index local 'self' (a nil value) when the button:activate() method is called. The parser says the error is…
Frog
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SysTick interrupt doesnt trigger (Arm Cortex M0)

I'm using a PGA970 with a ARM Cortex M0 and I'm struggling with the basic function of its SysTick interrupt. Neither Texas Instruments nor Arm could help me as they each ask me to consult the other. My current state is this: void main(void) { …
PaulR
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Improving speed of bit copying in a lossless audio encoding algorithm (written in C)

I'm trying to implement a lossless audio codec that will be able to process data coming in at roughly 190 kHz to then be stored to an SD card using SPI DMA. I've found that the algorithm basically works, but has certain bottlenecks that I can't seem…
murreletinnovation
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Controlling MSP430 with computer (USB?)

I'm looking to control a bunch of LEDs from my computer, with a TI MSP430 or similar. My computer is a Macbook Air, and so it looks like the only port I can communicate with is USB. The MSP430 has a USB port, but I can't find any information about…
amindfv
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Lightweight encrypting for BLE advertising packets

I'm fairly new to BLE and am exploring the security of advertising packets. I was hoping to find some recommendations for resources/general advice on how should learn/implement lightweight encryptions for advertising packets. The data I would work…
nbafanatic
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davinci OSD issues

I am working on a project using TI 365 DSP. There is an annoying issue of OSD transparency working in YUV422 mode. YUV422 is a packed format and the OSD transparency implementation knocks out only Y field by the provided transparency value, so if…
Ulterior
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TI-Basic: Nspire Basic Function will show Too many arguments

I am currently struggling with TI-Basic. I am using a TI-Nspire CX II-T CAS and I want to write my own library and add some functions for statistics. But at the moment I can not get to work any funcitons at all. Even the most basic code will not…
Stevie
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Can I transfer sign between integers faster (on the C5515)?

I have implemented 32-bit fixed point division on the TI C5515 DSP using an iterative method detailed in TI's DSPLIB. It's a 16-bit DSP, and this function is a bit of a bottleneck with some repeated 32-bit calculations, so every instruction…
detly
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Wrong values are displayed on LCD

I'm using Tiva c to drive an LCD but some characters and numbers are wrong displayed, for example, N is displayed as L, 2 and 3 are displayed as 0 but other characters and letters are displayed correctly. Here is the function that displays…
Andy
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How to display the value of the a register in ti assembly for ti 83+/ti 84/ti 84+

All right, I shall cut down to the chase. I am looking for a way (bcall() or some other method) to display the value that is currently held in the a register using the assembly for the ti 83 plus graphing calculator. I do not care how complex the…
Caleb Evans
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Setting an interrupt on the TI-84 Plus CE

I'm trying to set an interrupt to catch presses of the ON button. This is my code so far: SetInterrupt: di ; copy the 4 bytes from InterruptVectorTable to cursorImage ; (I chose cursorImage because it's on a 512-byte boundary, 0E30800h) ld …
Benjy Wiener
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External assembler function for digital signal processor

I need to create external function on TMS320C5515 Fixed-Point Digital Signal Processor around BFXTR command. I need to write some value directly into memory. I tried something like this: .def _bfxtr _bfxtr: PSH mmap(ST0_55) PSHBOTH XCDP …
Zhurik
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Android with two displays(LCD and HDMI)

I am working with TI board, currently flashed with Android Marshmallow. I have enabled LCD and HDMI. current scenario, screen mirror is happening i,e both LCD and HDMI showing same contents. I want to have video playback on LCD and other…
dasariarun
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