Got a Teensy 3.5. - Can I ad memory to the TX buffer?

Projects Programming
1

I'm sending a pretty long string on the TX4, blocking the run of the other processes.

I tried
uint8_t Serial5_buffer[128];

In the setup

Serial4.begin(115200); // Bluetooth HC05 to Win 10 Tablet
Serial4.addMemoryForWrite(Serial5_buffer, sizeof(Serial5_buffer));

This method worked wonders on my Teensy 4.1 but it won't compile for the 3.5.
I get 'class HardwareSerial4' has no member named 'addMemoryForWrite'
Is there still a way?
If not, should I move this communication on another UART?
Thanks a lot

Mitch
no one answered this on the teensy forum.... please help.

2

Write a function that you repeatedly call at loop() time that checks your outgoing buffer and feeds the UART as necessary. You could even use a circular buffer to make life even easier.

-jim lee

3

I would love to see an example of that. Circular buffer? above me....