TDA4VM: Cannot display output for UART testapp on UART console

Shravan Manerikar

Part Number: TDA4VM

HI,

I'm curently running the csl_uart_test_app given in the examples of uart from csl folder on the TDA4VM board using NO BOOT mode. I'm using cutecom and I have placed the breakpoints at each UARTConfigPuts statement given below from the app.

UARTConfigPuts(uartBaseAddr, "\nUART Test", -1);

output :

[17:36:49:814] <0x01><0x04><0xa4><0xf4>

UARTConfigPuts(uartBaseAddr, "\nEnter some data to transmit:", -1);

output :

[17:36:49:814] <0x01><0x04><0xa4><0xf4>b<0xe0><0x84><0x85><0xe5><0x86><0x84><0x84><0x84><0xe4><0x84><0x85><0xa7><0xc6><0xe4>

UART configuration is as follows:

baud rate - 115200

Data bits - 8

Parity - None

Stop Bits - 1

Flow Control - None

I have also tried minicom, But I am getting different results there, with some ASCII characters as output for the above statements.

over 5 years ago

0 Prasad Konnur over 5 years ago

TI__Expert 6065 points

Hi,

from which core are you running the example? and which terminal port are you checking?

Regards,

Prasad

0 Shravan Manerikar over 5 years ago in reply to Prasad Konnur

Prodigy 150 points

Hi Prasad,

I'm running this example on mcu2_1 core, and using port 1 (among the 2xMCU UART ports) to monitor UART output.

I've even tried using other ports, but only on this port do I get some output.

Thanks and regards,

Shravan Manerikar

0 Prasad Konnur over 5 years ago in reply to Shravan Manerikar

TI__Expert 6065 points

Hi,

You need to run the csl_uart_testapp from mcu1_0 or the mpu1_0 (a72) cores.
However there is an issue with this example.
refer below post.
e2e.ti.com/.../3288210

Regards,
Prasad

0 Shravan Manerikar over 5 years ago in reply to Prasad Konnur

Prodigy 150 points

Hi Prasad,

I tried running it on the cores you specified, i don't get any outputs, as in the output is blank, atleast I can trigger the breakpoints for a72 but not in the case of mcu1_0.

I just gave it a try with mcu2_1 core, I'm getting the following output:

b<break>
[13:57:18:920] <0x01><0x04><0xa4>D<0x03><0x87><0xa4><0xa4><0xc7><0x8d><0x84><0x84><0x84><0x87><0xa4><0xe4><0xc5><0x86><0xf7>b<break>

which resembles the previous output.

Thanks and regards,

Shravan

0 Prasad Konnur over 5 years ago in reply to Shravan Manerikar

TI__Expert 6065 points

Hi,

Can you check the Uart driver testcases?
like UART_TestApp or UART_Baremetal_TestApp and check of you are able to get the prints?

Regards,
Prasad

0 Shravan Manerikar over 5 years ago in reply to Prasad Konnur

Prodigy 150 points

Hi,

No I'm still not able to get the prints for either of the apps.

Thanks and regards,

Shravan

0 Prasad Konnur over 5 years ago in reply to Shravan Manerikar

TI__Expert 6065 points

Hi,

With the UART_TestApp or UART_Baremetal_TestApp you should be able to get the prints without any modifications.

Have you opened the proper UART terminal?
There are 2 USB ports which for connecting the UART terminals.
There will be multiple UART terminals which are emulated at PC.
Can you open the all the terminals and run the test?

Regards,
Prasad

0 Shravan Manerikar over 5 years ago in reply to Prasad Konnur

Prodigy 150 points

Hi,

As I said, the ouput which I get is as mentioned in the question. I do not get proper inputs.

Also I tried connecting to all the 6 ports, but i receive the mentioned output at port 1 (among 2 mcu ports).

Thanks and regards,

Shravan

0 Karan Saxena over 5 years ago in reply to Shravan Manerikar

TI__Guru* 77754 points

Hi Shravan,

There are 2 PHY for UART on the board - J43 and J44.

J43* (2 instances) - UART for MCU domain (mcu1_0, mcu1_1)

J44** (4 instances) - UART for MAIN domain (mpu1_0, mpu1_1, mcu2_0, mcu2_1)

* mcu1_0 prints will come on 2nd instance of J43

** mcu2_1 will come on 1st instance of J44

[attached config for teraterm]

I was able to run the UART_TestApp on mcu1_0 and mcu2_1, use the following to build

>> make -C build/ UART_TestApp -sj --> this build for mcu1_0 and prints will come on J43, 2nd instance

>> make -C build/ UART_TestApp -sj CORE=mcu2_1 --> this build for mcu1_0 and prints will come on J44, 1st instance

Can you please try the above an verify? (I'm assuming you are running the latest 6.02 SDK release and CCS boot mode - I've validated the above on that)

Regards,

Karan

0 Shravan Manerikar over 5 years ago in reply to Karan Saxena

Prodigy 150 points

Hi,

that has successfully resolved my issue with the UART. Thanks for all the clasrificatons

Regards,

Shravan

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TDA4VM: Cannot display output for UART testapp on UART console