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CC2540 have no response.... CC2540EM MASTER code...

I use CC2540EM Master,Slave code...

I'm using 3devices...

2devices slave... (advertising... interval is 160ms, data size is 20byte..)

1device master... scan devices...

master device is collecting advertising data in 350~500ms

after 5~10minites, master device have no response...

master device is just scan devices...

there's no way to operate...

 

I tried same code with CC2540USB Master...

it works well...

 

what's different???

the only one I modified is disabled flow control function...

i tried to change ISR type to DMA...but stack is not support now...

 

is there any flush command??? osal?? uart rx? uart tx??