arm - How to connect multiple usart to stm32 board -


i want know how connect multiple usart (each usart connected terminal) devices single stm32l152rb 1 usart can communicate another. requirement b - usart board. clincher (if u it). connect b1->b2. b2->b3, b3->b4 via uart.

 b1 terra  term user tells      mrc  -b=3

this stands "make remote call" on board3. b1 via uart communicate b2, b2 board 3. board 3 make switch on led indicate making call. 

 src -b=3

will stop remote call.


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