Please some one send the example code of soft_uart for stm32f407vg

[RANGASWAMY HB]

try to understand the softuart but i couldn't get any example so please send me the sample code of that

thank you in advance

[Imen.D]

Hello @RANGASWAMY HB​ ,

You can have a look to any UART example available in STM32CubeF4 firmware package, as:

STM32Cube_FW_F4_V1.21.0\Projects\STM32F401-Discovery\Examples\UART

You may re-use sections available in the example or get inspired from them.

With Regards,

Imen

[Tesla DeLorean]

The OP is looking for a software (bit-bang, timer) USART implementation not a hardware (peripheral) USART.

[AvaTar]

There is no soft uart example for the F407.

And it doesn't make sense, if you have 6 real uarts available.

TI used to have soft driver variants for their TM4C series, for UART, I2C, and SPI AFAIK.

[waclawek.jan]

https://www.st.com/en/embedded-software/stsw-stm32156.html

> And it doesn't make sense, if you have 6 real uarts available.

You'd be surprised how much sense it may make, at times... :)

JW

[RANGASWAMY HB]

hello JW

please some one provide me any example of softuart for stm32 series board.

thank you

[AvaTar]

> You'd be surprised how much sense it may make, at times... =)

I know, there is a pin mux problem sometimes. I would resort to tricks like external switches, instead of re-implementing an uart peripheral. Had to do "soft" versions for PICs with 2 uarts, and don't miss it.

@ RANGASWAMY:

Get the TI soft-uart code for their M4 and port it to the STM32.

Or write it yourself, which is not really difficult.