MCU-PLUS-SDK-AM243X: Consult about Profinet API in our SDK.

Shaoxing Ke

Part Number: MCU-PLUS-SDK-AM243X
Other Parts Discussed in Thread: LP-AM243

Hi Experts，
My customer is using PN_RT_MII Example for product software development, and we has the following questions:

PN_RT_MII Example could be found in the C:\ti\mcu_plus_sdk_am243x_08_01_00_36\examples\industrial_comms\profinet_device_demo\rt_mii\am243x-lp

1.The Acyclic data exchange between the Controller and Device, Could it be implemented on Sitara-AM243x products/Current SDK?

If yes, Can you provide an example for customers to develop?

2. As shown in the figure below, whether the device receives the parameterized configuration of the controller can support dynamic configuration？

And I did not see any data frames received from the controller in the PN_RT_MII Example, can you point out that "write frames" related API?

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3.In the PN_RT_MII Example, We did not see any read-write request and response operation functions in the RealIdentification.c, and if we want to implement the acyclic data communication as below, how to modify the code in the current SDK? Thanks!

over 3 years ago

0 Shaoxing Ke over 3 years ago

TI__Expert 3540 points

Hi Experts,

Is there any progress on this issue? Thanks!

0 Shaoxing Ke over 3 years ago

TI__Expert 3540 points

Hi BU Team,

Do we have any updates? This question is important for the customer.

0 Dhaval Khandla over 3 years ago in reply to Shaoxing Ke

TI__Mastermind 26944 points

Hi
Sorry for the delay in response. We will provide answers by end of this week.

Regards
Dhaval Khandla

0 Shaoxing Ke over 3 years ago in reply to Dhaval Khandla

TI__Expert 3540 points

Dear Dhaval,

If you have an S7-1211 controller on your side, can you have a try to add this module(Like the WRREC and RDREC ) as below:

Can we have a try and study this function? Thanks!

0 Dhaval Khandla over 3 years ago in reply to Shaoxing Ke

TI__Mastermind 26944 points

Shaoxing Ke said:
1.The Acyclic data exchange between the Controller and Device, Could it be implemented on Sitara-AM243x products/Current SDK?

If yes, Can you provide an example for customers to develop?

Acyclic Data for example I&M Data is registered in APP_configureImData within so called I&M Carrier

See Below the I&M Carrier Descriptor:

/*
* Example of how different flavors of I&M carriers can be added to the array.
* A real submodule must be plugged prior adding an I&M carrier.
* Submodule must be able to be an I&M carrier (consistency with GSD).
* By adding a new I&M set, don't forget to adjust APP_IM_CARRIER_NUM.
*
*   {.api = 0x00000000, .slotNumber = 0x0001, .subslotNumber = 0x0001,
*   .supportedIm = PN_API_IM_eSUPPORT_IM1 | PN_API_IM_eSUPPORT_IM2 | PN_API_IM_eSUPPORT_IM3,
*   .deviceRepresentative = false, .moduleRepresentative = true, .memoryIndex = 1},
*
*   {.api = 0x12344567, .slotNumber = 0x00aa, .subslotNumber = 0x00fe,
*   .supportedIm = PN_API_IM_eSUPPORT_IM2,
*   .deviceRepresentative = false, .moduleRepresentative = false, .memoryIndex = 2},
*/
static const APP_SImCarrierDescriptor_t imCarrierDescriptors_s[APP_IM_CARRIER_NUM] =
{
    {.api = 0x00000000, .slotNumber = 0x0000, .subslotNumber = 0x0001,
    .supportedIm = PN_API_IM_eSUPPORT_IM1 | PN_API_IM_eSUPPORT_IM2 | PN_API_IM_eSUPPORT_IM3 | PN_API_IM_eSUPPORT_IM4,
    .deviceRepresentative = true, .moduleRepresentative = true, .memoryIndex = 0}
};

The I&M Carrier is filled in APP_createImDataCarrier.

It is processed by the PROFINET Stack when given to PN_API_IM_addImCarrier.

Shaoxing Ke said:
2. As shown in the figure below, whether the device receives the parameterized configuration of the controller can support dynamic configuration？

And I did not see any data frames received from the controller in the PN_RT_MII Example, can you point out that "write frames" related API?

We will provide some additional APIs to provide more flexibility in MCU+ SDK 8.2 release.

We are planning to provide getExpectedSubmodules(). With this, application can read back the expected Identification.
Additionally we are improving the module substitutes feature to support substitutes of different I/O Size as well

Shaoxing Ke said:
3.In the PN_RT_MII Example, We did not see any read-write request and response operation functions in the RealIdentification.c, and if we want to implement the acyclic data communication as below, how to modify the code in the current SDK? Tha

We will provide answer to this by end of the week.

Shaoxing Ke said:
If you have an S7-1211 controller on your side, can you have a try to add this module(Like the WRREC and RDREC ) as below:

I will not be able to try this out. Do you see any problems with this?

Regards
Dhaval Khandla

0 Shaoxing Ke over 3 years ago in reply to Dhaval Khandla

TI__Expert 3540 points

Dear Dhaval,

The WRREC and RDREC module cannot be implemented on LP-AM243 device. In fact, the settings of the two modules are for the acyclic data communication. When customer use this module, it reports response timed out from the TIA Portal V16.