Hercules™ Safety Microcontrollers Forum - Recent Threads

RTP and DMM demonstration

Yehonatn Spiegel — Sun, 13 May 2012 10:20:32 GMT

as part of my project I have to use DMM and RTP in direct mode (the Hercules connect to fpga in this connection)

any one have a simple demo how to use this peripheral in CCS and HALCOGEN

Yehonatan

Starting up a new project with lwIP and TMS570

matteo lucarelli — Wed, 22 May 2013 16:12:54 GMT

Hi,

I'm working with a TMDX570LS31HDK and trying to startup a new project with lwIP support based on your example (HALCoGen Ethernet Driver and lwIP Integration Demonstration)

I've follow your starting point to setup the drivers in halcogen:

disabled all drivers exept EMAC ans SCII (for terminal messages)
enable the PINMUX for MII,MDIO(G3) & MDCLK(V5) - NOTE: the MII autosetup generates two conflictcts. I've disabled the two AVCLK4 to solve them)
Enable EMAC interrupts 77 and 79 in VIM Channel configuration tab
Added two ISR in the VIM ram tab. The two function will call lwIPRxHandler and lwIPTxHandler (I've copied the code from your EMACCore0RxIsr and EMACCore0TxIsr)
one MAC address is set in the EMAC tab
the rest of the code is imported from your example with no modification except the ones required for correct compilation (for example some undefined unitXX_t types probably due to previous version of HalCoGen.)
as you can see from attached code my sysmain is basically extracted from your example and manly calls lwIPInit to startup ethernet and get DHCP

The code compiles flawless but does not work. The microcontroller cannot get the DHCP address. Note that on the same platform your example works well and reach the DHCP bound. I've dig as much as I can with no results. Can someone have a lokk to my code to find the bug?

Once working I'll be happy to share this with all the forum users. It will be a clear starting point for ethernet support.

grazie,

Matteo

Does FUL_CPU_MODE of MCRC exists in TMS570LS0432 Cantina device?

Pashan None — Wed, 22 May 2013 15:34:21 GMT

Hello Support,

Can you please confirm exactly which modes exists in Cantina TMS570LS0432 device for MCRC peripheral? spnu517.pdf is confusing as shown below.

Any detailed information will help me a lot.
Thank you.
Regards
Pashan

HALCoGen with TMS570LS21xx

Francesco Bursi — Thu, 30 Aug 2012 12:30:19 GMT

Hello,

I'm evaluating the use of TMS570LS5125-PGE on a new project and I'd like to use the HALCoGen to make the initializations, but I didn't find it in the HALCoGen supported device list.

Is it possible to use HALCoGen also with this device (maybe selecting another device from supported list)?

Is it possible also to create code for FreeRTOS support?

Thanks in advance.

Regards.

- Francesco

Medical devices certification - life critical applications

YILMAZ KIRÇİÇEK — Sat, 08 Sep 2012 22:07:34 GMT

Hi all,

Does any one know that can we use AM3874 for medical application like patient monitoring. (with appropriate OS)

Is AM3874 appropriate for life critical application and certification. (FDA Class III or similar) ?

This device familiy is listed on patient monitor block diagram on processor list as shown at link below.

http://www.ti.com/solution/patient_monitoring#Design Considerations

And Hercules RM4x Safety MCU family is recommended for medical application but not listed on patient monitor block diagram.

Is Hercules family mondatory and sole alternative for safety applications or this familiy offered for ease of certification and other families like sitara can be certified ?

Best regards.

What is the Flash API Function call for Flash Compaction within F021 Flash API?

Pashan None — Wed, 22 May 2013 14:30:57 GMT

Hello Support,

In the Flash API document for F021 based device, I couldn't find anything related to Flash Compaction function.

In the F035 or F05 Flash API, there was Flash_Compact_B() API.

Please help.

Thank you.
Regards
Pashan

How to sync ePWM1 using N2HET1_LOOP_Sync in champion

Keyur — Wed, 22 May 2013 14:15:42 GMT

Currently I am refering champion Technical manual and in the section 4.5.12, Description mention that N2HET1_LOOP_SYNC signal synchronize the ePWM1 using SYNCI signal. would anyone help me to understand what setting required on N2HET1 & ePWM to do this synchronization.

Is that possible to sync ePWM when certain counter value met in N2HET1 ? what setting do I need ? which out pin of N2HET1 would drive this sync ?

If any example exist, Pl. send me detail as well.

DMA interrupts

Jack Andrews — Wed, 22 May 2013 12:31:33 GMT

Hi, I'm trying to get DMA interrupts to work. Here's my code:

main()
{
_enable_interrupt_();

....

dmaEnableInterrupt(SPI1_DMA,FTC);

}

void dmaNotification(dmaBASE_t *DMA, uint32 flags)
{
while(1);
}

I've also enabled VIM channel 33 (DMA FTC) in HalCoGen. Unfortunately, my ISR is never reached. The DMA is definitely working, so it would seem to be my interrupt configuration which is wrong. Any ideas?

Thanks,

Jack

QADD, IQmpy error IQmath.h

Vytautas Bau��a — Wed, 22 May 2013 11:08:42 GMT

Hello,

I was trying to run this library "spnc042" for PID controller (on TMS570ls0432). And everytime I run it, this or similar error pops up (unresolved symbol __IQmpy, first referenced in ./source/pid.obj). The problem is that none of functions from (IQmathLib.h) header file can be executed. Later on I came up with idea that corresponding *.lib file from (C:\ti\Hercules\Cortex-R4 CMSIS DSP Library\1.0.0\Lib) should be included to CCS (ARM Linker>File Search Path>Add..). But that didn't work as well.. And yes I inserted these defines (User needs to configure "MATH_TYPE" and "GLOBAL_Q" values) in this header file.

I don't know maybe I am missing something, or the tutorials of older versions are not compatible with my CCS 5.3.

So maybe you could create a blank project for this microcontroller and include necessary files and configuration for IQmath (24). And do some few lines of multiplication and addition of floating point type variables (just to make sure, how I should be using those maths)?

TMDXRM48USB low power mode

Mindaugas Kurmauskas — Tue, 21 May 2013 22:54:47 GMT

Hello,

I am using TMDXRM48USB kit with xRM48L950AZWTT microprocessor. I would like to know how to enter lowest possible power consumption mode and still be able to wake the processor up at some point (to erase it) or at least how to properly use pmmInit() in pmm.c of halcogen generated file. Now when i try to initialize it it looks that it keeps waiting in one of the while loops. Is there a special place where to initialize it?

HET Interrupt

Chafik Egho81089 — Wed, 22 May 2013 08:03:58 GMT

We are working on interfacing the SM470R1B1M-HT Microcontroller with a motor resolver, so we are employing the HET for this.

We need the HET to generate a 50% duty-cycle PWM at 8 Khz, and to trigger an interrupt at certain point of each clock cycle. I have got the PWM generating the expected square wave; however, I still can not get the HET interrupt working at all.

I have copied the HET and the C code below, would you please advise me if you have any suggestions

Thanks in advance

HET CODE

L00: CNT {next=L01, reg=T, irq=On, max=0x750, data=0}

; PWM (50% duty cycle)

L01: ECMP {next=L02, reg=T, hr_lr=HIGH, en_pin_action=ON, pin=CC6, action=PULSELO, irq=On, data=0x3A8}

L02: BR {next=L00, cond_addr=L00, event=NOCOND}

C Code

int main(void)

{

// Set up peripheral registers.

// First disable interrupts.

__disable_interrupt();

PCR = 0x1E;

PCR = 0x1F; // enable peripherals

/* copy HET instructions to HET ram*/

MemCopy32((void *) &e_HETPROGRAM0_UN, (void *) HET_INIT0_PST, sizeof(HET_INIT0_PST));

HETPFR = HRPRES_FACTOR_1 | LRPRES_FACTOR_4;// 0x0000052b; /* Set PFR register */

HETDIR |= Het6+Het2; /* Set pin directions */

HETPRY = 0x03;

HETGCR |= 0x00010003; /* Start HET */

__enable_interrupt();

for (;;)

{

}

__irq __arm void IRQ_Handler(void)

{

switch ((0xff & IRQIVEC) - 1)

{

case CIM_HET1: HETDOUT ^= 0x04; break;

}

Trouble with TMS570LS31 HDK SDRAM

Tom Major — Wed, 24 Apr 2013 16:05:51 GMT

Hi,

I enabled SDRAM with EMIF on a TMS570LS31x Hercules Development Kit, with the help of this post

http://e2e.ti.com/support/microcontrollers/hercules/f/312/t/237341.aspx

But I seem to have trouble with accessing the data. I believe it has something to do with the fact that this SDRAM is connected over a 16 bit bus.

My litlle test program:

    volatile uint16 *p = (volatile uint16*)0x80000000;
    for (int i = 0; i < 16; i++) {
      *p++ = 0xABC0 + i;
    }

But in the debugger I see this data in the memory window:

80000000 abc0 abc0 abc2 abc2 abc4 abc4 abc6 abc6
80000010 abc8 abc8 abca abca abcc abcc abce abce

Every second write seems to go wrong somehow. Changing to 32bit pointer access does not help.

Any help is appreciated. Thanks.

MibSPI rx DMA

Jack Andrews — Tue, 14 May 2013 15:50:02 GMT

Hi,

I'm having trouble using DMA to read MibSPI rx buffers. Attached is my current code:(Please visit the site to view this file)

Here is a screenshot after transfer is complete:

Esentially, two 16 bit bytes have been received: 0x0FFF and 0x0D4A. Note that the memory view on the right shows the mibSPI1 RX buffer. RX_DATA, which uses DMA to transfer from mibSPI RAM to RAM, (see value in watch) is missing the second byte, whilst RX_DATA2 (which uses mibspiGetData() as in the mibSPI example code) contains the correct two bytes as confirmed with a scope. So, the SPI is working, but DMA copy to RAM is not.

Please take a look at my code and see if anything is wrong. Also, I have a question - what is the function of R(T)XDMA_MAPx? I thought MIBSPI[1] request source is hardwired to DMAREQ[0]?

ESM Group 3 error

Alan Thieman — Thu, 16 May 2013 13:16:06 GMT

I have an application that uses the TMS570LS3137 processor. The HET 1 module is used to produce several PWMs The HET2 module also produces a PWM at a different frequency. The ADCs are triggered by RTI 0 interrupt. I recently changed the main timing loop interrupt. It used to be triggered by RTI 1. Now I am having the HET module trigger the main CPU timing loop by having the HET "CNT" instruction trigger the interrupt; I am no longer using (RTI 1).

This all seems to work, but now I am getting ESM group3 errors during power-up.

Can you give a suggestion what I should look for to fix this error?

The maximum error of MibADC on TMS570LS2125

Yusuke Nomoto — Mon, 06 May 2013 14:28:05 GMT

Hello,

I have a question for "Table 5-10. MibADC Operating Characteristics Over Full Ranges of Recommended Operating Conditions" described in page 121 of data sheet of TMS570LS2125 (spns164).
Is ETOT (Total unadjusted error) equal to the maximum error?
I think that 10-bit mode maximum error is plus or minus 2% and 12-bit mode maximum error is plus or minus 4% (after calibration).
Also, in case of not after calibration, error becomes larger.

If not so, could you teach me the maximum error for both of 10-bit mode and 12-bit mode?

Best Regards.

Nomoto

how .if compiler directive works in HET programming code

Keyur — Tue, 21 May 2013 13:59:15 GMT

Currently I am using HET 1.7 assembler. As per the Assembler user guide -SPNU490 , I am trying to use compiler directive ".if" for certain line only if condition met. Here is the example, I am continuously getting .if syntax error, so would anyone help me understanding this ?

Here is my code snippet :

Test .equ 1

Instruction1: CNT {reg=A, irq=OFF, max=10, data=0}

.if Test

Instruction 2: BR {next=START, cond_addr=START, event=NOCOND}

.endif

ESM Error on TMDXRM48HDK

Jamie Wardlaw — Fri, 17 May 2013 17:39:22 GMT

Hello,

I recently received a new TMDXRM48HDK for continued prototype development (our previous HDK was broken during testing).

The application that was previously working on our other HDK throws ESM errors on the new board. The new board has never been tested with external IO (source of previous failure). I am seeing intermittent success with running the board with the application we developed, also with the demo applications that come with the HDK.

To try and debug the problem I have tried to generate from HALcogen empty applications with only the GIO enabled and toggle the NHET pins in the main loop. This has had intermittent success, with ESM errors occurring frequently. If I do anything more advanced such as enabling a HET driver and trying to both PWM a HET pin and, say, use another as GIO I end up with ESM errors.

Can anyone help me debug the source of the ESM error in the event there is a chance it could be an initialization issue with the micro? I think it is unlikely and we may have been shipped a defective board.

Thanks

Jamie

Accessing DMA working registers - Current Transfer Count Register (CTCOUNT)

J Joson — Mon, 20 May 2013 21:26:39 GMT

Hello,

I am trying to acquire a 'lot' of data with 570LS1227. DMA is triggered in hw to transfer a 16 element burst every 3 us. I want to avoid any interrupts and I allocated a 1K deep buffer for the data. Instead of waiting for a periodic interrupt (HBC/BTC) I would like to poll DMA's working register to process any new data collected in the background loop. But none of the working registers are updated during/after the transfer! There is only one active DMA channel in the system during this test.

Is there any trick to update the active working registers?

Thanks,

Joe.

TPS65381 Wake Up

Rustin Schroeder — Mon, 20 May 2013 19:34:54 GMT

Is there any method on the TPS65381-Q1 for controlling whether or not the PMIC can be woken up by the CANWU pin (e.g. register setting, etc.)? From what I’ve seen in the datasheet, it looks like it is always going to wake up from either source. We have CAN transceivers on our design and intend to have the option of waking the system via CAN wake-up, but would like the option of whether or not it is enforced. Can this be done in the TPS65381-Q1 or must there be some external mechanism for controlling it? If external, any ideas on how to implement?

Clean lwIP HalCoGen starting point

matteo lucarelli — Tue, 14 May 2013 16:21:19 GMT

Hi,

I'm trying to build a clean HalCoGen project for TMS570 including the lwIP stack. When will work this example would be useful to all the users asking some easy startup on using the ethernet.

In attachment there's my second try (the first used the last version of lwIP with no success).

This where the main steps:

- Started the project in halcogen as illustrated in your video tutorial (mainly enabling EMAC and SCI2 and enabling MUX for EMAC)

- open the HalCoGen project in CCS5

- imported your lwIP-1.3.2 sources from the "Halcogen emac driver and lwIP demonstration"

- excluded from direct compilation all the sources inside the lwIP folder (they are compiled indirectly with the lwiplib.c file)

- imported a couple of required file again from the example

- added the minimum code in the sys_main to setup the lwIP

With a little work the project compiles and load flawless in the device but is not able to gain the network functionality (no ping) both with DHCP or static address. I've dig a lot in the sources but with no success.

Can you please give it a try?

Thank you.

ciao,

Matteo

What should be the value of ATCMRW Bit in Secondary Auxiliary Control Register of Cortex-R4 Core?

Pashan None — Mon, 20 May 2013 14:27:27 GMT

Hello Support,

I find that BTCMRW Bit of Secondary Auxiliary Control register is mentioned in TRM for ECC Check within BTCM Port [RAM] as shown below in the Picture.

I couldn't find anything similar about ATCMRW Bit, even though it is also 64-Bit ECC.

Does this mean ATCMRW Bit is DONT'CARE for all the use cases, especially during Flash Programming?

We need to enable run-time ECC Check for ATCM Port also.

Any infor related to ATCMRW Bit setting will help us understanding it better.

Either TMS570LS3137 or TMS570LS0432 is fine.

Thank You.
Regards
Pashan

FLASH Memory Write/Erase Cycles

David Rodriguez Rodriguez — Mon, 20 May 2013 21:29:46 GMT

I am using the microcontroller TMS570LS3137 and F021 API (version -> 1.51) to perform read and write operations on flash memory.

I need to know what would happen if I try to write in Flash memory (program or data Flash) when their write cycles are over.

What would be the return value of the function Fapi_checkFsmForReady () or what would happen if Fapi_issueProgrammingCommand(…) function is called when write cycles are over during writing process?

I would appreciate so much if someone can help me, please.

Regards…

FreeRTOS + RM48 HDK

Jay Khandhar — Thu, 16 May 2013 05:37:25 GMT

I am trying to run FreeRTOS on the RM48HDK. I am following the help file named example_freertosblinky.c . But the LED does not seem to blink.

First I create a empty project in Code Composer Studio. I select the variant to be RM48L950, and connection as Texas Instruments XDS100v2 USB Emulator. I leave the other settings to their default fields.

Then in HALCOGEN, I select the device as RM48L950ZWT_FREERTOS. I follow the exact same steps as mentioned in the help file, but just a small change in VIM RAM column, instead of of vPreemptiveTick , I have used vPortPreemptiveTick. The former gave me linking errors.

Also, I was getting a error for all the header files included. The error stated that the source files cannot be found. I just added this in all the #include statements to remove this error.

#include "../include/file_name.h" instead of just #include "file_name.h".

That got rid of the compile and linking errors and I was able to generate the executable.

I load the .out file on the board using nowFlashWin.

I am attaching my workspace here. If somebody can tell me where am I going wrong. Are there any project properties to be changed in Code Composer Studio?

It would be great if anybody could share their working FreeRTOS working directory for the RM48 HDK it would be great.

Here is my FreeRTOS workspace

(Please visit the site to view this file)

problems using TMS570LS3117 with Keil with RTX kernel

Somnus Wang — Mon, 20 May 2013 07:00:48 GMT

Hello, I'm using TMS570LS3117 demo board with Keil with RTX kernel. I created a simple project in which I created two tasks.

Then I downloaded this programand and run it. Keil MDK shows that the os_idle_demon task has an error of stack overflow and the program runs out of control.

My MDK version is 4.23 and I used startup_TMS570LS.s provided by Keil. I'm on line waiting for someone help me solving this problem. Hoping for your help.

how received all dcan message identifier number from one message box or whitout message boxs.

Halil Ibrahim — Fri, 17 May 2013 06:51:36 GMT

Hi,

I want to receieved 43 can message with tms570LS31xhdk. I dont want to using all message box. how received all dcan message identifier number from one message box or whitout message boxs.

Thanks.