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ADC
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  • Forum Post: TMS470R1B1M, Questions about GIO and ADC

    Madje
    Hi everybody. My english is not very good. I'm working with pressure sensors, and i'm using a TMS470R1B1M board. First, i would like to do an analog-digital conversion of my sensors responses, and then control the analog input of the ADC with the program, and modifies the output of the...
    on Apr 15, 2010

  • Forum Post: ADC performance

    Adam10676
    Hi, 1. I need information about maximal useful ADC conversion time. I have to do 700ns sampling rate of 1 ms duration signal and then transmit stored data via UART. Is it possible using 160Mhz MCU? 2. Can TMS570 USB Dev. Stick work standalone after flashing via USB using CCS4.1? Best regards...
    on Aug 4, 2010

  • Forum Post: Re: TMS570: ADC + DMA

    A Arora
    Jason, this is being looked into and we plan to have a response shortly. Regards, Abhishek
    on Jun 28, 2011

  • Forum Post: TMS570: ADC + DMA

    Jason Bell
    Hello, I'm using a TMS570LS20216SPGE on the TMDX570LS20SUSB development stick. I am attempting to configure an A/DC and a DMA channel to work together to store a continuous A/D sample stream into a RAM circular buffer without core intervention. I have set up one A/DC group to run in continuous...
    on Jun 27, 2011

  • Forum Post: Technical Reference Manual for TMS470R1

    TomaszB
    Hi, Could you help me to find Technical Reference Manual for TMS470R1, please? I'm looking for ADC specification, could someone provide a link? Thanks in advance, Tomasz
    on Nov 2, 2011

  • Forum Post: TMS470MF0660x ADC problem

    ww song
    VCLK=80MHZ adcREG1->RSTCR = 1U; /*reset adc*/ adcREG1->RSTCR = 0U; /*exit reset state*/ adcREG1->OPMODECR = 0x00140001U; /*enable adc*/ adcREG1->CLOCKCR = 3U; //ADCLK prescale 1/4 adcREG1->GxMODECR[1] = 0x22; //G1 CH ID mode, single conversion, software trigger ...
    on Oct 12, 2011

  • Forum Post: ADC calibration problem

    Daniel Dueringer
    I'm trying to calibrate the ADC of the Hercules evaluation board for the TMS570LS3137. I have configured to ADC to use 12bit values, but I get 10bit values from the ADCALR register instead of 12bit values: - low: 0 - middle-low: 426 - middle-high: 597 - high: 1023 In the figure 18-10 from the technical...
    on Jan 17, 2012

  • Forum Post: Re: HALCoGen version 3.00.00

    Pratip Kumar
    Daniel, Let me answer the last question first. You should be choosing the HW trigger from the default trigger source .Refer the attachment. I need to check on your observation on #2. Do you see any issue with your observation on #1 at the moment , although I will check if there is an option...
    on Jan 31, 2012

  • Forum Post: Re: HALCoGen version 3.00.00

    Pratip Kumar
    Daniel, On Q3 : Can you send me the generated adc file , which trigger are you using for Group 1 ? On Q1 : Can you explain what you mean by app doesnt start-up without debugger connected ?Are you able to get upto main() without any issues ? Regards, Pratip
    on Jan 31, 2012

  • Forum Post: Re: TMS570 CAN message length and identifier

    Pratip Kumar
    Istvan , Yes , it is possible to dynamically change the length and ID . Although the Halcogen doesn't provide any independent API's to do the same. You can pick out the ID,DLC configuration routine from the can_init() routine and use it. You may have to stop the communication during...
    on Jan 31, 2012

  • Forum Post: Re: HALCoGen version 3.00.00

    Daniel Dueringer
    Pratip, On Q3: See attached file adc.c. I use RTI compare 0 as HW trigger for both ADCs. On Q1: The application doesn't start-up after a power on reset or power supply off - on cycle. Only when I debug the application or if I remove the interrupts enabling in the _coreInitRegisters_, it...
    on Jan 31, 2012

  • Forum Post: Re: HALCoGen version 3.00.00

    Daniel Dueringer
    Q1: Is ok, thanks! Q2: Channels 0-23 of the ADC1 are converted, but the time to convert all channels isn't correct in HALCoGen. Q3: Is still not working ...
    on Feb 7, 2012

  • Forum Post: Re: Parity check for ADC

    Vaclav Cechticky
    Hello Sunil, It's working now. Also the section 18.9.3 from SPNU499 helped me to get it running. Thank you Vaclav
    on Feb 10, 2012

  • Forum Post: Parity check for ADC

    Vaclav Cechticky
    Hello, I'm trying reproduce/re-run available tests which are creating and verifying parity errors for ADC1 and ADC2 on RM48 HDK. Whereas other provided parity tests are working in a predictable way, the parity checks for ADC1,2 are sometimes passed, one is failed or both failed. I guess...
    on Feb 8, 2012

  • Forum Post: Bugs when using HalCoGen 2.11 for TMS570

    Tarik Kurtovic
    When using HALCoGen to generate code for the TMS570LS3137ZWT I could observe some bugs: - the start-up code seems to be buggy, the debugger gets stuck in the systemInit() and cannot be stopped - when selectiog ADC channels in MIBADC1 Group 1/2 some are set properly while some not at all, e.g. enabling...
    on Jan 17, 2012

  • Forum Post: HALCoGen version 3.00.00

    Daniel Dueringer
    I encountered the following problems with HALCoGen version 3.00.00 for the TMS570LS3137: - The generated file sys_core.asm enables all interrupts, incl. the fast interrupts („cpsie if“), at the beginning of the start-up. Why? - The channels 16 to 23 of the ADC1 group 1 can be enabled...
    on Jan 30, 2012

  • Forum Post: Re: HALCoGen version 3.00.00

    Christian Herget
    Daniel, As discussed offline, the solution to use the ADC HW trigger is to run " adcStartConversion() " once for the conversion group. Thanks, Christian
    on Mar 5, 2012

  • Forum Post: 12-bit ADC Frozen, 10-bit ADC Operational

    Tony Morrell
    Hi, I am using the TMS570LS31x Hercules MDK. I have 10-bit ADCs operating well. I require 12-bit ADC operation. I have made the following changes to convert from 10-bit to 12-bit ADC: Set bit '10/12 BIT' in ADC register ADOPMODECR to '1' (from '0'). Modified the result...
    on Aug 28, 2012

  • Forum Post: ADC power up time td(PU-ADV)

    Peter Aberl
    Hi Hercules Champs, in the ADC section of the TMS570LS31x/21x TRM (spnu499) there is the chapter 18.8.3 regarding ADC power down modes. In this chapter a power up time t d(PU-ADV) is mentioned and refered to the datasheet for the actual value. However, searching the datasheet (spns162) I can't...
    on Oct 4, 2012

  • Forum Post: TMS570LS2125: MibADC: The initial voltage of the Cmux and the Csamp.

    Hideaki Nambu
    Sirs, On the page-120 of the TMS570LS2125 DS "SPNS164" we find the MibADC input equivalent circuit as Fig 5-1. In the figure we find Cmux and Csamp. Then, can I ask the initial voltage of the caps when they are connected to the ADC input pin? The replies would be ADREFHI, ADREFLO ,the...
    on Nov 22, 2012

  • Forum Post: Digital and analog Interface

    pajani CHANEMOUGA
    We are developing a safety control board; we are using microcontroller TMS570. To validate our algorithms of control, we would like to design a prototype from the Hercule Developement Kit TMDX570LS31HDK and some I/O interfaces. and we would like help from specialists on the following points: -...
    on Jan 5, 2013

  • Forum Post: RE: Digital and analog Interface

    pajani CHANEMOUGA
    Jean Marc, Thanks for your answers. I need some design examples for interfacing the MCU to the sensors ( the voltage and the bandwidth are respectively of 5V and 500Hz) Best regards Pajani
    on Jan 7, 2013

  • Forum Post: DMA and ADC Problem

    Brice Plavonil
    Hi all, I do not manage so far to have a functionnal ADC and DMA on the TMS570L or RM48x. My sequence is : After having initialised the adc module, with all the 64 buffers on the group1 of ADC1 (2 x 32), I start the continuous conversion on pin0 using : adcREG1-> G1DMACR |= 0x00400005 ; /...
    on Jan 17, 2013

  • Forum Post: TMS470R1B1M ADC problem

    Jian Chen
    Hi, I am using TMS470R1B1M. I have enabled ADIN[0] to ADIN[4], meaning I use the first 5 internal AD channels of group 1. And interrupt is enabled. The problem is if I enable all 5 channels, the ADC0, ADC1, ADC2 are invalid data. ADC3, ADC4 OK. If I enable first 3 channels, all 5 channels read...
    on Feb 11, 2013

  • Forum Post: 10-bit calibration result

    Yusuke Nomoto
    Hi, In page 696 of TRM (spnu499), "19.8.1.2 Calibration and Offset Error Correction Sequences" is described. I want to use this calibration function and get the 10-bit calibration result. In case that the ADC result is 12-bit, is the data conversion to 10-bit executed (by hardware) automatically...
    on Mar 12, 2013
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