TMS570LS3137: serial communication issue

Hi Premsai,

Is it possible to quickly attach your project for debugging? I can debug it at my end and can guide you on this.

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Thanks & regards,
Jagadish.

Hi Premsai,

And also, i am suggesting you to refer the below tested examples once:

(23) [FAQ] TMS570LC4357: Examples and Demos available for Hercules Controllers (E.g. TMS570x, RM57x and RM46x etc) - Arm-based microcontrollers forum - Arm-based microcontrollers - TI E2E support forums

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Thanks & regards,
Jagadish.

sorry i cant do that as it is office project, but i am trying to transfer the data random data through dma to scitx and expecting to see the data in terminal

Please refer existing examples once, those will helpful you to find out the root cause for your issue.

Jagadish can i transfer 16bytes at a time from DMA to LINTD0 and LINTD1 using software trigger, if yes which should use block transfer or frame transfer

premsai k said:

Jagadish can i transfer 16bytes at a time from DMA to LINTD0 and LINTD1 using software trigger, if yes which should use block transfer or frame transfer

Yes, you can!

Use block transfer and configure number of frames as 16 and elements as 1.

SS_DMA_HW_TRIGGER_DISABLE, /*HWTriggerEnable */
SS_DMA_CH_HIGH_PRIORITY, /*ChannelPriority */
DMA_RQST_NONE, /*DMA_RequestSource */
(UINT32)&APP_FPGA_TX_RawBuffer[0], /*InitialSourceAddress */
(UINT32)0xFFF7E574U, /*InitialDestinationAddress*/
16U, /*InitialFrameCount */
1U, /*InitialElementCount */
NO_DMA_CHANNEL_SELECTED, /*ChannelChaining */
ELEMENT_SIZE_32_BIT, /*ReadElementSize */
ELEMENT_SIZE_32_BIT, /*WriteElementSize */
DMA_ONE_BLOCK_TRANSFER, /*TransferType */
DMA_INDEXED_ADDRESSING_MODE, /*ReadAddressingMode */
DMA_INDEXED_ADDRESSING_MODE, /*WriteAddressingMode */
TRUE, /*AutoInitiationMode */
4U, /*ElementDestinationIndex */
4U, /*ElementSourceIndex */
0U, /*FrameDestinationIndex */
8U /*FrameSourceIndex */

check this if it is right

Yeah, this looks fine to me!

Hi jagadish, i used this module "0815.SCI_Multibuffer_DMA_LS3137" can i use ccs terminal to see the serial communication data or i have to use putty or something.

Hi Premsai,

You can do it from CCS as well,

In CCS and in debug mode, we have a window called Terminal:

If you can't find this window after entering in debug, then use this search option:

After opening terminal window here, you can configure the serial baudrate and other settings like COM port as per your board.

Once you configure then it will be ready to print your serial data in this window

Even you can give the input to the controller from this terminal by just typing from keyboard;

For example, as you can see the buffer is empty right

Now i am entering 8 keys from 1 to 8 in my keyboard in terminal window:

As a result, you can see my data is moved to the controller buffer by DMA.

In this way you can print or send the data using this terminal.

Remember here i changed the example baudrate to 115200:

--
Thanks & regards,
Jagadish.

HI jagadish, 

void sciSetupAndTransfer(void)
{
// Initialize the SCI module
sciInit();
// Define the data to be sent
uint8 data[] = "Hello, SCI!";
uint32 dataLength = sizeof(data) - 1; // Exclude the null terminator

// Wait until the SCI is ready to transmit
while (!sciIsTxReady(scilinREG))
{
// Wait for the transmit buffer to be ready
}

// Send the data
sciSend(scilinREG, dataLength, data);
}

I prepared this code from the same module this should print the data on the ccs terminal right?

Hi Premsai,

Yes this should print.

First i am suggesting you try this example code once:

SCI_AND_LED_Blink_TEST_LS3137 (2).zip

In this code i am toggling LED's for every one second and also in the same timeout i am printing the data on terminal "HERCULES" like as shown below.

This worked without any issues on my TMS570LS3137 board:

And make sure the terminal settings as below:

--
Thanks & regards,
Jagadish.

Hi jagadish i tried this still i am not able to see any data, LINTX is open in our schematic is that the problem? if that is the problem where it should be connected.

Hi Jagadish i tried in development board it is working, thanks for your time and help through out the issue.