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C674x
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  • Forum Post: Does C6748 be supported "C674x Megamodule Sleep Mode"?

    RY9983
    (Please visit the site to view this file) Hello. I am using Logic PD Experimenter Kit. I have tried to C674x Megamodule Sleep Mode which is described in spruh79a(P197). When I use OMAPL138 SOM, I was able to sleep DSP. But, I have not been able to accomplish it on C6748 SOM. Could you advise...
    on Sep 27, 2012

  • Forum Post: Re: Reconfiguring Audio and McASP drivers for custom hardware

    David Anderson11625
    Hi there, thank you all for the detailed and informative replies. By the end of Friday I had figured out that the parameter "bios.UDEV.instance("mcasp0").deviceId" referred to the number of the physical McASP to be used in that driver. I put a big old comment in the code to that...
    on May 18, 2009

  • Forum Post: Secondary bootloader generation tool for 674x?

    David Anderson11625
    Is there a tool available for the C674x to generate a secondary bootloader, such as genBootCfg does for the 672x? Specifically we need to boot from parallel NOR flash and use GPIO pins for the higher addresses. thanks, Dave
    on May 5, 2009

  • Forum Post: BIOSUSB

    Ana Leticia
    Hi, Could anyone used BIOSUSB? I´m trying to use it with my board (without SDRAM). So the examples can not be used because the code is too large and not can be allocated on the internal RAM. I need to make a simple USB PC / board communication (HID is ok for me). Does anyone be successfull writing...
    on Aug 26, 2009

  • Forum Post: about C6748 interrupt

    rookie16157
    Hi It's my first application on OMAP L-138 so please any help will be greatly appreciated. I am trying to generate an interrupt using the user buttons(s1-s8) on UI board but I can't find info on how to realize it. Is there any source code example in C? thanks!
    on Oct 27, 2009

  • Forum Post: C6748 power consumption

    Krzysztof Czyz
    I have been looking for detailed information on static and dynamic power consumption of OMAP-L138 and C6748 DSPs. Is there any document (as for example for Blackfin DSPs) on dynamic power consumption as a function of power supply voltage and frequency? Thanks, Krzysztof
    on Feb 4, 2010

  • Forum Post: McASP frame sync and clock divider

    Szymon Kuklinski
    Hello I have two questions regarding how McASP treats the frame sync signal and how it divides the incoming clock. 1) Can a longer FS signal be used? My OMAP-L138 device is clocked and synced form a device that cannot provide a FS lasting 1 bit or 1 word. The only option is a 50/50 signal. As far...
    on Apr 12, 2010

  • Forum Post: exception triggered in _DSPF_sp_ifftSPxSP - Bug?

    Yan8622
    Hi, My program seems to crash inside the _DSPF_sp_ifftSPxSP from the newly released C674x dsplib. Here are the logs from Execution Graph Details 38095 EXC_exceptionHandler: EFR=0x2 38096 NRP= 0xc0044bec 38097 mode=supervisor 38098 Internal exception: IERR=0x180 38099 Loop buffer exception...
    on Jun 12, 2009

  • Forum Post: DSPlib function DSPF_sp_biquad not working with non-whole number coefficients

    Arvid Tomayko-Peters
    Hi I'm trying to use the DSPlib's single precision biquad function on a C6747 EVM. The problem is that when I give it coefficients that are not whole numbers, I get awful noise out, even with no audio input (though the noise changes when there is audio input). But when I use coefs that...
    on Jun 10, 2010

  • Forum Post: expn() function for C67xx

    Brent Rauscher
    We are porting some of our code from the 5509 to the C6748 and are having troubles with the expn() library function. It is implemented in ASM on the 5509 and I cannot find an equivalent on the 6748 DSP. I need to either locate the same library source (or lib) for the new DSP with this function OR translate...
    on Jun 25, 2010

  • Forum Post: uPP (loopback) failure

    Uri Shkolnik
    Hi, I'm trying to deploy the uPP BIOS driver which is supplied with PSP 1.30.1 for C6748. My first step was to try and run the example given with the same PSP (simple loop-back between the two channels), it fails. The loop-back transmit/receive sequential pattern. If I try the loop...
    on Jun 30, 2010

  • Forum Post: C6748 RTC

    369114
    I have a need for two different applications, one that uses the RTC and one that does not use the RTC on the TMS320C6748 device . In both applications (RTC on and RTC off), we wish to decrease power consumption as much as possible. In the application that uses the RTC, we plan on powering...
    on Jul 19, 2010

  • Forum Post: Re: edma3 AXEVT signal not being generated from MCASP module

    caleb crome
    I fixed the problem, but I'm not 100% sure of the exact fix. One problem is that I used the McBSP example code for the DMA. That was a problem because it only takes 1 word per DMA event, so A count was wrong. I send 32, 32-bit words at a time, so A count must be the same as the FIFO RNUMEVT and WNUMEVT...
    on Jul 22, 2010

  • Forum Post: ndk project output "no phy connected"

    huichao zhou
    I use the ndk on C6747, my net drive chip is dm9161.But when i run my project ,it output "no phy connected". I have checked my net chip, there are no signal on the port of MDIO and MDC. Is the layout of MAC broken or some errors else? Thank you!
    on Apr 10, 2011

  • Forum Post: Re: asm code modification help

    Kee Yong Ting
    Hi, the filter in the library is only supported for short format, which is 2 bytes. Is there any library that support 32bit fixed point? And where can I get the asm code for c64x+ library functions so that I can look into. Thank you.
    on Apr 15, 2011

  • Forum Post: uPP Transmission Problems (UOR Error on DMA Channel I)

    Gregory Gluszek
    Hello, I’m having trouble with uPP Transmit. I have Channel A configured for 16-bit transmits using DMA I and I'm using an OMAPL138 running at 300 MHz. I have my test code stripped down to a loop in which I perform a single transmit, wait for the interrupt indicating that the transmit...
    on Apr 27, 2011

  • Forum Post: Re: C6748 UPP receive problem

    Conrad Ramsey68316
    Hi Joe, Thanks for getting back to me quickly. I have an ADC that we can for the moment assume is outputting constant data at a fixed frequency. It outputs 2546 elements at 750Khz. The data resolution is 8 bits. It looks something like the figure below: If the ADC is outputting constant data...
    on May 4, 2011

  • Forum Post: C6748 UPP receive problem

    Conrad Ramsey68316
    Hi, I have a project that sets up a PSP UPP driver for the C6748 DSP to capture 8 bit data from an ADC. I modeled the code from the PSP UPP example found in PSP driver 01.30.01. I set the peripheral up for channel A receive mode, create the input channel using (SIO_create), set up the DMA using...
    on May 4, 2011

  • Forum Post: C6746BZWT4 OrCAD Symbol Data Different from Datasheet!

    j-breeze
    Hi, My customer downloaded the C6746ZWT4 OrCAD symbol data from the product page, and then found that some terminal names were different b/w the symbol data and the datasheet as follows. o Pin No. F4 - Orcad : RSVD / RTC_ALARM / UART2_CTS# / GP0[8] / DEEPSLEEP# - Datasheet : / RTC_ALARM / UART2_CTS#...
    on Jun 8, 2011

  • Forum Post: DDR2 on custom board with C6748

    Admar Schoonen
    Hi We are developing a new product based on the C6748 (d800k006, so silicon revision 2). So far, we used the Logic EVM to develop the software, but now it is time to port this to our custom board. The custom board has a C6748 with an ISSI IS43DR16160A DDR2 chip. I'm trying to get this device...
    on Jun 29, 2011

  • Forum Post: Re: Best choice for multichannel WAV audio player project

    Lester Longley
    Hi Christophe, I believe that the OMAP-L138 could be more suitable for the application you've described. It incorporates both a C674x DSP core, as well as an ARM core which can run Linux. OMAP-L138 includes two SD/MMC ports, LCD controller, and USB interface. The datasheet for this device...
    on Jul 24, 2011

  • Forum Post: Reducing hardware interrupts by using DMA?

    Admar Schoonen
    Hi all I'm looking for ways to reduce the number of hardware interrupts that the DSP (C6742) in our application. In our current application, the C6742 is connected to a ADS1158 ADC. The ADC !DRDY pin causes a hardware interrupt on the DSP, which then kicks a small interrupt routine that reads...
    on Aug 5, 2011

  • Forum Post: SPI0 Boot Issue

    mirco bazzani
    We have made our own C6748 Board Booting from SPI0 flash M25P64. Our DSP is TMS320C6748BZWT. After several second to power up all is working fine. Sometimes the Boot Fails if we power down and up the board fast. If we see some strange issues ,we think, in ROM Bootloader D800K006. We have flashed a simple...
    on Aug 23, 2011

  • Forum Post: Usage of "Gpio_clearInterruptStatus" function

    Jayesh Patel63136
    I am using C6748 and have configured 4 interrupts (INT0, INT1, INT2 and INT3) using different GPIO banks (Bank0_Pin12, Bank2_Pin03, Bank4_Pin01 and Bank3_Pin13). I have configured GPIO ints from falling edge trigger only (I have set for falling edge and clear for rising edge on my interrupt setup routine...
    on Sep 13, 2011

  • Forum Post: C6747 benchmark not correct for some dsp functions

    amit agrawal84916
    I am using a C6747 Starter Kit with CCS 3.3. I re-complied the c674x-dsplib_1_03_00_01 and I am using its DSP functions. Project is set to Release mode with -mv6740, -mf5 and -03 options. I am using DSP/bios for c6747. The 64P L1PCFG and L1DCFG are set to 32K and L2CFG is set to 0. I tried benchmarking...
    on Sep 27, 2011
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