RS232 Limited string length when sending / receiving dat

[tiny]

Is it possible to send or receive a string with 400 byte or more via the RS232 (Wlan) interface?
I need this function to parameterize my circuit without having to split these strings.
Perhaps there is a simple way to realize this?

Christina

[LeighM]

Hi
Could you give more details?
Such as the target device and component you are using.
Your Flowcode program, or part of it demonstrating the issue.

[tiny]

Hi
I am using FC 7.2, dsPIC33 ECIO. What I intend is that I send between 200 and 400 characters long strings over Wlan (ESP8266) from the PC to the MCU (and vice versa), which are then stored in the serial EEprom (parameters and texts).
Attached is a transmission protocol and a short testroutine, which sends me to my PC program a string. 253 characters and CrLF are possible. This limitation should not actually exist with a 16Bit MCU, but maybe I have programmed something wrong!

Christina

Test_Send_LongString.fcfx

(26.75 KiB) Downloaded 346 times

SendString.txt

(330 Bytes) Downloaded 309 times

[LeighM]

Thanks for the information.
Wow, it's a bug, or a limitation at least, in our UART(RS232) component, which is limiting the SendString to 255 characters.
I guess that has been enough for most applications over the years, but we will get this extended and get back to you.

[Benj]

Hello,

I think this updated component should solve the problem for both transmit and receive, download and simulation.

Simply drop the file into your "Flowcode 7/components" folder and restart Flowcode to load in the changes.

RS232.fcpx

(15.41 KiB) Downloaded 386 times

Let us know how you get on.

[tiny]

Hi
Many thanks to LeighM and Benj for the quick solution! It works wonderfully!

Christina