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McBSP
Related Posts

  • Forum Post: Re: Interfacing TMS320F28335 to PCM1792A with PLL1705

    DaveB123
    Roman, can you put a link to the place where you read the McBSP is limited to 25MHz? Typically, it can run at 1/2 the system clock. What speed are you running the 28335?
    on Apr 22, 2009

  • Forum Post: Re: Interfacing TMS320F28335 to PCM1792A with PLL1705

    DaveB123
    Sorry for the delay....the 25 Mhz limit stated in the datasheet is correct and refers to the clock speed of the McBSP pin ability to transition at a maximum rate. However you can attain the McBSP pin speed, by dividing down internally. It's probably more accurate to say that we don't guarantee...
    on May 6, 2009

  • Forum Post: Interfacing TMS320F28335 to PCM1792A with PLL1705

    Roman10801
    Hi, my design is based on F28335 microcontroller, which provides PCM1792A DAC through McBSP serial port with serial PCM data. I wanted to use PLL1705 to clock both of those devices. However it is said in F28335 datasheet that maximum clock source for McBSP is 25MHz (page 158) and CLKG (bit shifting...
    on Apr 22, 2009

  • Forum Post: TMS320F2812 Communication with another TMS320F2812

    Sanjeevikumar Padmanaban
    on May 19, 2009

  • Forum Post: Error in receiving data on slave F2811 McBSP configured as SPI

    Prakash13354
    Hello. I am using two F2811 DSPs configured to transfer data via McBSP configured as SPI, one F2811 DSP is configured as McBSP as SPI master and the other F2811 DSP is configured as McBSP slave device. PROBLEM: The master McBSP set as SPI is configured to xmit known data pattern of 0xAA and the data...
    on Oct 15, 2009

  • Forum Post: 28335 Control Card - Test with different crystal (24MHz instead of 20MHz)

    Markus Hofinger
    Hi all! I'm currently building a basebord for the 28335 Control Card. I'm accessing an ADC, and a DAC throug the McBSP in SPI mode. As I need to get an exact 6kHz cyclic frequency, I need to change the crystal, because the 6kHz can't be realised with the 20MHz crystal. As even a 30MHz crystal...
    on Sep 10, 2009

  • Forum Post: McBSP in SPI mode suggestions needed

    Mark Takatz
    I'm using a 28335 McBSP channel to extract data from an ADC that is "SPI compatible." Unfortunately, the ADC supplies its own data ready signal that is brilliantly synchronized to the sample clock, not the SCLK input. This means I am forced to supply SCLK (from MCLKRB, to be precise) while...
    on Jun 30, 2010

  • Forum Post: McBSP SPI-mode Clock Output

    quark
    Hello fellow code gurus, I need a firmware solution to a hardware problem. We have a F28335 McBSP connected to a SPI device (ADC). Unfortunately, our board was layed-out with the MCLKR connected to our SPI clock (instead of with MCLKX). We found that the MCLKX works in stop-clock mode but the MCLKR...
    on Jan 11, 2011

  • Forum Post: McBSP in SPI mode clock problem

    Chris McDermott
    (Please visit the site to view this file) I am using CCS4.2.1 and a 28335 controlCard in a DockingStation baseboard. The 28335 is using a system clock of 60 MHz, and the hi-speed and lo-speed peripheral clocks are also configured to 60 MHz. I have a jumper hooking MISO to MOSI for an external loopback...
    on Jun 20, 2011

  • Forum Post: Re: 28235 McBSP in SPI Mode with FIFO

    Chrissy Chang
    Jon: You are correct - on the 2823x, there is no FIFO for the McBSP. There are some limitations with using McBSP in SPI mode - one of which is that you cannot use the frame length feature of the McBSP. Table 6-1 "Bits Used to Enable and Configure the Clock Stop Mode" indicateshow to set...
    on Aug 26, 2011

  • Forum Post: 28235 McBSP in SPI Mode with FIFO

    Jon Kelm
    I have a 25 kHz control loop kicked off by an A/D conversion. At the beginning of this loop I set a GPIO chip select line, and transmit six 16-bit words of data over SPI. With the 2809 processor, I configured the SPI to use the transmit FIFO. At the beginning of my control cycle I set the chip select...
    on Aug 26, 2011

  • Forum Post: Example project for ADS1601/02 EVM

    Dror Medini
    Hello, I have the ADS1601/02 EVM. In its user’s guide ( SLAU147 ), it says there is an example project running in the CCSv3.3 environment, by the name ‘ADS1601-XXXX.pjt' , where the XXXX in the project’s name, stands for one of the following platforms: 5510, 6711, 6713, 6416...
    on Aug 30, 2011

  • Forum Post: Re: Maximum CLK speed for McBSP module in the F28335

    Dror Medini
    Hello Noah, Is the CPU speed relevant? I would like to highlight that I wish to provide (if at all possible) the McBSP module, an external clock, that has nothing to do with non of the F28335’s clocks. So, my question is what is the maximum speed allowed for this external clock?? Thanks...
    on Sep 8, 2011

  • Forum Post: Maximum CLK speed for McBSP module in the F28335

    Dror Medini
    Hello, I am trying to configure the McBSP module in the F28335. I want to connect it to an external clock via MCLKR pin. What is the maximum clock rate (CPU speed is 150MHz) possible?? Is 20MHz ok? Thanks! Dror
    on Sep 6, 2011

  • Forum Post: SPI clock timing value

    TimmyJames
    Hello all. Forgive me, SPI seems to be a popular favourite at the moment. I've got a customer who is configuring a McBSP - SPI interface on a 2812, and I'm trying to work out his maximum communication frequency limitations, in part by investigating clock to valid data out timings. He's got...
    on Dec 2, 2008

  • Forum Post: Interfacing the eZdsp TMS320F28335 with a PCM4222EVM (and interrupt issues)

    Craig Easdale
    Lately I've been trying to interface the PCM4222 audio CODEC with the TMS320F28335 development kit. I have the 4222 working fine and functioning well as an ADC, however when it comes to having the TMS320 write the input from this to memory via the McBSP it doesn't work. My main problem is...
    on Sep 27, 2011

  • Forum Post: McBSP only receives data once..?

    Craig Easdale
    I'm using an eZdsp TMS320F28335 board connected to a PCM4222EVM, and I've finally been able to get the McBSP sort of working... However, the McBSP will only receive one frame of data. I wait for the RRDY flag to go high, which signifies new data in the DRR registers, at which point I read...
    on Sep 28, 2011

  • Forum Post: McBSP Interface issue

    vedant chendake
    Hi friends, I am facing issue in interfacing TMS320F2812 McBSP to TMS320F28335. I have connected TMS320F2812 McBSP-A channel to TMS320F28335 McBSP-A channel.Here after transmission of word i am getting proper interrupt but i am not getting proper data.Every time i am receiving 255 at receiver side...
    on Nov 11, 2011

  • Forum Post: McBSP in SPI mode - clocking problems?

    Bubbles
    Hello, I use TMS320F28069. My aim is to use mcBSP for getting data from an ADC. I have doubts about initialization, my current code looks as follows: void mcbsp_spi_init() { // McBSP-A register settings McbspaRegs.SPCR2.all =0x0000; // Reset FS generator, sample rate generator & transmitter...
    on Nov 5, 2011

  • Forum Post: DMA-McBSP Interface problem.

    vedant chendake
    Hi friends, I am using using TMS320F28335 controller DMA channels.McBSP channels are interfaced with the DMA channels.Here McBSP channels A is configured as receiver and mapped to the DMA channel A.In this case we have fixed the DMA data transfer size as 5 words and McBSP will generate interrupt for...
    on Nov 19, 2011

  • Forum Post: McBSP of the TMS320F28069PN

    IChung
    Hi, everyone, I would like to connect a TLV320AIC23 codec to the McBSP of the TMS320F28069PN which has 80 pins, not 100 pins. However, the TMS320F28069PN does not have the MCLKRA pin and the MFSRA pin among the McBSP pins. In case of the TMS320F28069PZ which has 100 pins, there is no problem, since...
    on Nov 23, 2011

  • Forum Post: McBSP Issue

    vedant chendake
    Hi, I am facing problem in intefacing McBSP of TMS320F2812 and TMS320F28335.From McBSP-A channel of TMS320F28335 i am sending data to the McBSP-A channel of TMS320F2812.In TMS320F2812 channel A DRR register i am receiving the data properly.At this moment RRDY flag is 1.We have configured McBSP communication...
    on Nov 28, 2011

  • Forum Post: 2834x/2833x McBSP as SPI slave...

    Patrick Philp
    I'm currently involved in a project that requires a SPI slave to take 16 bit data from an FPGA, process it and write it back out as a SPI master to some DACs. Anyone got some example code on how to set up the McBSP as a SPI slave? I've followed the steps in the Delfino MCBSP user guide, and...
    on Nov 30, 2009

  • Forum Post: Communicaton between two TMS320F28335 MCUs via McBSP and dma controller

    Roman Kirchner
    Hello, I have a little question regarding a communication problem between two TMS320F28335. The HW: - The two DSPs are connected via McBSP DSP1-MFSXB <--> DSP2-MFSRB DSP1-MCLKXB <--> DSP2-MCLKRB DSP1-MDXB <--> DSP2-MDRB - The two DSPs have separate clocks ...
    on Apr 20, 2012

  • Forum Post: Development kits to prototype comms between F28335 using TDM

    Nigel Davies
    I'm am looking for prototyping hardware to develop software to interconnect multiple F28335 using both TDM interfaces before our target hardware is ready. Can anyone suggest which of the possible kits from TI, Spectrum Digital or others might be most suitable? Thanks
    on May 25, 2012
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