uart delay using LABVIEW

[Jack_DB]

Good morning, 

I need to send data using UART to a board with a specific delay between single elements, which I obtain as I'm using LABVIEW, but on the board said specific delay is not obtained, and worst of all the delay between datas is not constant. I figured there would have been some additional delay, but is there a way to decrease it or at least make it constant? or is it intrinsic to the UART technology? 

Thx all

[Andrew Neil]

Some more detail would help:

How to write your question to maximize your chances to find a solution

 

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@Jack_DB wrote:

a specific delay between single elements

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What delay, specifically?

How do you implement that delay?

What do you mean by "elements" here?

• between each byte?
• between groups of bytes?
• other?

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@Jack_DB wrote:

I'm using LABVIEW,

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LabVIEW is an independent 3rd-party product from NI - nothing to do with ST.

You need to go to NI for support with their product:

https://www.ni.com/en/support.html 

https://forums.ni.com/ 

 

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@Jack_DB wrote:

on the board

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What board?

 

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@Jack_DB wrote:

is it intrinsic to the UART technology? 

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No - it must be something in your setup.

As we know nothing about your setup, hard to guess what it might be.

 

Try simple something like:

HAL_UART_Transmit( ... );
HAL_Delay ( ... );
HAL_UART_Transmit( ... );

 

PS:

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@Jack_DB wrote:

the delay between datas is not constant.

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How do you measure this?

What delay values do you see?

 

#LabViewSupport

[Jack_DB]

turned out to be a labview problem... 

thx anyway