LP-AM243: MCU SDK questions

Koichiro Tashiro

Part Number: LP-AM243

Hi,

I have questions from my customer.
Board: LP-AM243 rev.E3
MCU SDK

Q1) The customer wants to configure Tick time to 10us.
It seems syscfg cannot configure it less than 100us.
Is it possible to configure tick period = 10us?
The customer wonders it can be manually configure by changing;
timerParams.periodInUsec = 10 in ClockP_freertos_r5.c/ClockP_init()
But it is not clear it may cause any side effects.

Software > Clock
　Instance　TIMER8
　Input Clock Frequency (Hz)　25000000
　Input Clock Source　MCU_HFOSC0
　Tick Period (usec)　100 <== Want to change it to 10.

Q2) The customer wants to evaluate https server and client.
But it seems no examples for https nor TLS.
Do you have such examples?

Thanks and regards,
Koichiro Tashiro

over 2 years ago

0 Ming Wei over 2 years ago

TI__Guru 55165 points

Hi Koichiro-san,

The TIMER8 is used for system clock, so it may affect the system performance if it is too small. You can create a TIMER instance which allows you to set the Tick Period to 10us:

I will forward your 2nd question to our LWIP expert for further help.

Best regards,

Ming

+1 Nilabh Anand over 2 years ago in reply to Ming Wei

TI__Mastermind 45214 points

Hi Koichiro-san

We have bare metal based Http example: https://software-dl.ti.com/mcu-plus-sdk/esd/AM243X/latest/exports/docs/api_guide_am243x/EXAMPLES_ENET_LWIP_CPSW_HTTPSERVER.html

Also we have MbedTLS based secure https example coming soon. We can provide an early drop for this by next week.

Also can you please let me know what is the use case here.

Nilabh A.

0 Shaunak Deshpande over 2 years ago

TI__Genius 16502 points

Hi Koichiro Tashiro,

HTTPS server example running mbedTLS over LwIP is now available:
AM243x MCU+ SDK: CPSW Lwip HTTPS Server Example (ti.com)

0 Shaunak Deshpande over 2 years ago in reply to Shaunak Deshpande

TI__Genius 16502 points

Hi Koichiro Tashiro, In case you are trying to use the HTTPS server example, we have discovered a bug within the same,

I am sharing the fix below, please follow the same:

1. In the file located at following path: mcu_plus_sdk\source\networking\lwip\lwip-config\am243x\lwipopts.h,

make the change as shown in the diff above.

2. Rebuild lwip libraries,

3. Rebuild the example.

Thanks and regards,

Shaunak

0 Koichiro Tashiro over 2 years ago in reply to Shaunak Deshpande

TI__Mastermind 22935 points

Hi,

The customer is checking your answers. Please wait for a while to close this thread.

Thanks and regards,
Koichiro Tashiro

0 Koichiro Tashiro over 2 years ago in reply to Koichiro Tashiro

TI__Mastermind 22935 points

Hi Ming,

Ming Wei said:
You can create a TIMER instance which allows you to set the Tick Period to 10us:

The customer confirmed 10usec period using CONFIG_TIMER0.
It is not possible to use the 10usec timer for OS(FreeRTOS) Tick?

Hi Shaunak,

The URL you provided is AM243x MCU+ SDK 08.06.00 document, so these examples will be added in that version, correct?
When SDK 08.06.00 will be released?

Thanks and regards,
Koichiro Tashiro

0 Nilabh Anand over 2 years ago in reply to Koichiro Tashiro

TI__Mastermind 45214 points

Koichiro Tashiro said:
The URL you provided is AM243x MCU+ SDK 08.06.00 document, so these examples will be added in that version, correct?
When SDK 08.06.00 will be released?

Hi Koichiro San,

The official sdk 8.6 release is planned for mid March 2023

0 Koichiro Tashiro over 2 years ago in reply to Nilabh Anand

TI__Mastermind 22935 points

Hi Nilabh,

Thanks for your reply.

Hi Ming,

Could you reply remaining question?

Thanks and regards,
Koichiro Tashiro

0 Nilabh Anand over 2 years ago in reply to Koichiro Tashiro

TI__Mastermind 45214 points

Hi Koichiro San,

Was customer able to evaluate the example? Let me know if they have any feedback on it.

0 Seungho Yu over 2 years ago in reply to Nilabh Anand

Prodigy 135 points

it's already gone mid March 2023, is there any news?

0 Nilabh Anand over 2 years ago in reply to Seungho Yu

TI__Mastermind 45214 points

Hi Seungho,

There is a delay in SDK release, Expected release it planned for April 2023.

Appreciate your patience. Were you able to try out the pre release sent out in previous message.

0 Koichiro Tashiro over 2 years ago in reply to Nilabh Anand

TI__Mastermind 22935 points

Hi Ming,

Could you answer below?

Koichiro Tashiro said:
Ming Wei said:
You can create a TIMER instance which allows you to set the Tick Period to 10us:

The customer confirmed 10usec period using CONFIG_TIMER0.
It is not possible to use the 10usec timer for OS(FreeRTOS) Tick?

Thanks and regards,
Koichiro Tashiro

+1 Ming Wei over 2 years ago in reply to Koichiro Tashiro

TI__Guru 55165 points

Hi Koichiro-san,

No, the FreeRTOS does not allow the system tick smaller than 100us, because it t may affect the system performance.

Best regards,

Ming

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LP-AM243: MCU SDK questions