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F28335
Related Posts

  • Forum Post: F28335: GPIOB MUX1 gets set to 0XFFFFFFC0 when loading code

    ndsayam
    Hi Champs, A customer has observed that the GPIOB MUX1 register gets correctly to 0x00000000 after reset, but when loading code it is set to 0XFFFFFFC0. " Load any example project for 28335 in CCS. Watch memory at address 0x6F96 (GpioCtrlRegs.GPBMUX1). Observe that this memory location is correctly...
    on Jul 18, 2008

  • Forum Post: Re: Interrupt priority

    Frank Bormann
    Allessandro, by default all other interrupts, including higher prioritzed interrupts, are disabled when the 28x enters an ISR. This is done in hardware and based on INTM. With the return from the ISR the INTM switch is closed again. This principle is called "non nested". Now, if you like...
    on Jul 21, 2008

  • Forum Post: eZdsp F28335 and enclosed Code Composer

    malacis
    I am currently using eZdsp F28335 and enclosed Code Composer v3.3. Everything is working OK. Now I need debug the same code to my own prototyping board, using XDS510USB emulator from SpectrumDigital. Question is - need I purchase new Code Composer v3.3, or my current CC (which was enclosed together with...
    on Aug 15, 2008

  • Forum Post: Can contiguous Flash blocks be combined (linker command file, F28335)?

    Johannes L.
    In the linker command file I'm using I found the comment: Contiguous SARAM memory blocks can be combined if required to create a larger memory block. Can I do the same with FLASH blocks? I.e., can I put the following line in the linker command file: FLASHHG : origin = 0x300000, length = 0x010000...
    on Aug 27, 2008

  • Forum Post: Not enough memory

    HTrudel
    I'm currently writing my first application for the TMS320F28335 DSC for a voltage booster application. If this project goes well, we plan to add more responsibilities to this DSC (motor control, etc.). I began development on the eZdsp board provided by Spectrum Digital. Now after only 1-2 weeks...
    on Oct 7, 2008

  • Forum Post: Re: Not enough memory

    Raffaele Tegas
    Hi Hugo, do you really need to allocate everything of your program in RAM? You could store your program on flash and then copy only what you really need to RAM instead of loading everything. You should not add ext memory if the program is composed of the 3 items you described. Regards, Raffaele
    on Oct 7, 2008

  • Forum Post: Re: Interface

    Raffaele Tegas
    Hi, generally I2C is a good and simple choice. Regards, Raffaele
    on Oct 14, 2008

  • Forum Post: Re: Interface

    Tim Love
    There are several communications ports you could use: I2C, SPI, SCI. There are examples for all of these communication ports for both C2000 and MSP430 at the following links: http://focus.ti.com/mcu/docs/mcuflashtools.tsp?sectionId=95&tabId=1538&familyId=342 http://focus.ti.com/mcu/docs/mcuflashtools...
    on Oct 14, 2008

  • Forum Post: Re: F28XX On-Chip Flash Programmer Error Message

    Tim Love
    Eric, It looks like you have an older version of the Flash Programmer. You will need to update to the latest Service Release in order to support the device. Regards, Tim Love
    on Oct 16, 2008

  • Forum Post: Re: TMS320F28335 availability

    Pradeep Shinde
    TMS silicon version may not be the issue. Have you installed the latest CCS3.3 SR (Service Release)? What error message you get? Pradeep Shinde
    on Oct 19, 2008

  • Forum Post: Flash API error #-1

    xliao
    Hi, I was trying to familiarize myself with the Flash programmer tool in CCS. I simply tried to do the frequency test (as it is recommended in the flash programming tool help file) and obtained the following error message: Flash API error #-1: Failure reading Flash API error return value from target...
    on Oct 23, 2008

  • Forum Post: TMS320F28335 ePWM outputs channels

    dino80
    Hello, I don's see in Data Sheet from TMS320F28335 the specifications for all 18 PWM outputs, it's only for 16 PWM outputs (TMS320F28332). Anyone know for what are used another 2 PWM outputs???. What is the PWM difference between TMS320F28335 and TMS320F28332??? Thx, Dino
    on Oct 30, 2008

  • Forum Post: Beginner Question

    VisualCue
    Hi Everyone, This is the first time I have developed an application for a TI DSP so please bear with me if I ask really stupid questions. I am using the eZdsp 28335 Evaluation kit. I am running a sample application and have run into a few things that don't make sense related to the following...
    on Nov 9, 2008

  • Forum Post: Re: FXN_F_selfLoop() crash

    Davor
    FYI: R esolved in DSP/BIOS 5.33.03 (SDOCM00050676) *Davor slaps DSP/BIOS team around a bit with a large trout* :P
    on Nov 24, 2008

  • Forum Post: Re: GPIO

    BrandonAzbell
    Gaston: Would you be able to describe your setup that you are testing? I know that the F28335 eZdsp kit has been used, when connected to a PC directory via the USB interface to develop on. This is the basis of the platform for our TTO Workshops. Hooking up an oscilloscope should not have the effect...
    on Dec 7, 2008

  • Forum Post: F28335ZHH IBIS file - TDO Model (OC3325CF)

    Magnus Wohlfart
    Hi all, a customer reports the following: "The IBIS file for TMS320F38335ZHH has model for TDO pin named OC3325CF. Signal integrity simulations in Altium Designer show that this pin never goes high. Is this the proper IBIS model? Is OC for Open Collector, while the pin is marked Output in datasheet...
    on Dec 15, 2008

  • Forum Post: Re: help! TMS320F28335: question about the ePWM configuration for three phase full bridge IGBTs drive

    yqmeng
    Hi Tim It seems that I have found a bug about the ePWM module of the F28335 DSP, I am not sure if it is really a bug, could you please help me solve this problem? the problem is: the test program is the example code epwm_updown_aq in DSP2833x_v120 from the C/C++ Header Files and Peripheral Examples...
    on Dec 16, 2008

  • Forum Post: Re: ADC examples

    Tim Love
    Gaston, All of the examples included in the Header Files package are configured for boot to RAM option (with the exception of the flash example). This allows for quick and efficient evaluation for each peripheral. The flash example can be used as a template to convert the rest of the projects. There...
    on Dec 17, 2008

  • Forum Post: Re: help! TMS320F28335: question about the ePWM configuration for three phase full bridge IGBTs drive

    yqmeng
    Hi Tim the test program used by us is the example code epwm_updown_aq in DSP2833x_v120 from the C/C++ Header Files and Peripheral Examples sprc530, the prescalers of the TIMER0 and TBCLK has been configured and is running at the same frequency 150MHz, EPwm1Regs.TBCTL.bit.HSPCLKDIV = TB_DIV1; // Clock...
    on Dec 18, 2008

  • Forum Post: Console Application

    VisualCue
    Hi Everyone, I am building a basic platform upon which I can create my 28335 application. I'd like to start with a console application that allows input/output to a serial port (via SCI). I will need this since I will not always have CCS connected. I started with Example_2833xSci_EchoBack.c....
    on Dec 29, 2008

  • Forum Post: TIMER0 Interrupt on F28335

    Enea Bianda
    Hi, I have an eZdspF28335 board and I need to sample a signal with a rate of 5 MHz in order to calculate his derivative. To perform this task I set TIMER0 to have an interrupt every 30 cycles (200 ns). The interrupt function sample the signal and do the necessary computations. The problem is that to...
    on Jan 2, 2009

  • Forum Post: Re: ADC examples

    Pradeep Shinde
    One more reason is - flash technology does not allow unlimited erase/program operations. This number is limited by Flash Endurance value specified. Also, erasing and reprogramming takes much longer time than transferring code (from CCS) to the system memory. The designers will always like to debug the...
    on Jan 3, 2009

  • Forum Post: Re: sizeof() method used on struct

    BrandonAzbell
    HTrudel What will happen if I use a char* to compute the CRC of a table of n elements of type sVarsStorage? To add to Aarti's post, the TMS320C28x Optimizing C/C++ Compiler Users Guide ( SPRU514 ) provides information regarding data types of the C2000 architecture. I would suggest reviewing...
    on Jan 7, 2009

  • Forum Post: Re: RS-232

    Pradeep Shinde
    Gaston, Find a few SCI example projects in SW folder SPRC530 at; http://focus.ti.com/docs/toolsw/folders/print/sprc530.html They run on eZdsp out-of-box. Pradeep
    on Jan 26, 2009

  • Forum Post: Re: RS-232!

    BrandonAzbell
    You could utilize one of the Isolator family of devices. You can hone in on the device that would work for you by using the Parametric Table search . Perhaps the ISO7221A would work.
    on Jan 31, 2009
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