Re: RS232 communication problems with Samsung S3C2410

Hi

did you try lowe bit rates of flow control?

We had similar problems on other boards. Caused by an incorrect USB
implementation using to much CPU -> buffer overflow on the UART...

-- Martin


hansi67@xxxxxxxxx wrote in news:1123860423.082270.141560
@z14g2000cwz.googlegroups.com:

> I'm using PB4.2 with a BSP based on the SMDK2410 from Samsung.
>
> COM1 is reserved for our external device for serial communication
> 115200Baud 8,n,1,no handshake. I develop my application with eVC4.0 and
> debug with USB/ActiveSync.
> Generally I have problems to get correct data on COM1 if I use a
> ReadThread, recomended by MS/Onlinehelp. I syncronize my
> main-application and the ReadThread with a Semaphore-Release at the End
> of a Data-Packet.
>
> On the BSP I have tried following points:
>
> * increase the Priority of the serial driver Com1/Com2
> * remove the registry-record "TSP"="unimodem.dll" at Com1-Com2
> --> my assumption that 'ActiveSync' interacts..
>
> is there somebody witch has experiences in similar use?
>
> many thanks for some new ideas or help
> hansi
>
>

.