ESP8266 Developer Zone

Re: Uart driver with transmit buffer & interrupt

2015-04-18T13:48:00+08:00

Nice, thanks!

Statistics: Posted by tve — Sat Apr 18, 2015 1:48 pm

Re: Uart driver with transmit buffer & interrupt

2015-04-18T01:08:01+08:00

tve wrote:
Does anyone have some code to buffer uart output (TX) and send characters to the uart using an interrupt? The driver in the AT demo only uses interrupt for RX. Thanks!

BTW: does anyone know how deep the uart TX fifo is?

Demo here:
viewtopic.php?f=7&t=48&p=173#p173

Statistics: Posted by costaud — Sat Apr 18, 2015 1:08 am

Re: Uart driver with transmit buffer & interrupt

2015-02-25T23:50:00+08:00

Cool, thanks, looking forward to it! I fixed-up the uart.c that comes with the FreeRTOS SDK (https://github.com/jeelabs/esp8266-brid ... ver/uart.c if anyone cares) but stopped short of adding TX interrupt support. I'm using 115200baud and I realized that with a 128 char buffer I can simply delay for a tick (~10ms) if the HW buffer is full 'cause the buffer holds ~11ms worth of data.

Statistics: Posted by tve — Wed Feb 25, 2015 11:50 pm

Re: Uart driver with transmit buffer & interrupt

2015-02-25T22:04:57+08:00

tve wrote:
Does anyone have some code to buffer uart output (TX) and send characters to the uart using an interrupt? The driver in the AT demo only uses interrupt for RX. Thanks!

BTW: does anyone know how deep the uart TX fifo is?

I will update a uart buffer and interrupt instruction.
The UART tx/rx FIFO depth is 128 bytes.

Statistics: Posted by costaud — Wed Feb 25, 2015 10:04 pm

Uart driver with transmit buffer & interrupt

2015-02-17T16:25:47+08:00

Does anyone have some code to buffer uart output (TX) and send characters to the uart using an interrupt? The driver in the AT demo only uses interrupt for RX. Thanks!

BTW: does anyone know how deep the uart TX fifo is?

Statistics: Posted by tve — Tue Feb 17, 2015 4:25 pm