ESP8266 Developer Zone

Re: Request for the new command - change baudrate

2014-10-31T22:36:18+08:00

actually name of command is not important for me
i have shared this code for the Espressif developers as an example only
i want to help them to make their AT-firmware more usable for the real projects

Statistics: Posted by AlOdin — Fri Oct 31, 2014 10:36 pm

Re: Request for the new command - change baudrate

2014-10-31T16:32:59+08:00

The standard command for setting baud rate is +IPR. There's really no need inventing custom names for standard features of AT protocol.
Also you may want to save the baud rate into the user settings region of the flash, otherwise it's a bit pointless.

Statistics: Posted by igrr — Fri Oct 31, 2014 4:32 pm

Re: Request for the new command - change baudrate

2014-10-31T15:23:30+08:00

have added the +BAUD command
please include this mod to official release

AT_addBAUD.zip

Statistics: Posted by AlOdin — Fri Oct 31, 2014 3:23 pm

Re: Request for the new command - change baudrate

2014-10-30T02:10:11+08:00

Maybe you can try to add your own CMD in the AT SDK,

and change the baudrate via

Code:

 uart_div_modify(uart_no, UART_CLK_FREQ / (Your_baut_rate));

maybe there should be some sync steps .

and reset uart tx rx fifo :

Code:

    SET_PERI_REG_MASK(UART_CONF0(uart_no), UART_RXFIFO_RST | UART_TXFIFO_RST);
    CLEAR_PERI_REG_MASK(UART_CONF0(uart_no), UART_RXFIFO_RST | UART_TXFIFO_RST);

By the way , there would be a sdk patch for a potential uart bug these days.

I have tested the uart , it can support a high speed up to 115200*40 bps

Statistics: Posted by costaud — Thu Oct 30, 2014 2:10 am

Request for the new command - change baudrate

2014-10-28T14:13:23+08:00

Change baudrate command would be useful imho

It is desirable to support non-standard baudrates
250k
500k
1000k
1500k
2000k
3000k

Statistics: Posted by AlOdin — Tue Oct 28, 2014 2:13 pm