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Hi, this is exactly what I needed to know. Thank you > Sollae Systems wrote: > ------------------------------------ > Hello, > > This is Sollae systems support team. > > I misunderstood your second question. > > As I mentioned in the previous answer, Serial Rx buffer size of CSE-M53N is 2048byte. > > The RTS Signal is Active(="0") until the buffer is filled 3/4 of 2048byte. > > In other words, when buffer remains below 512byte, RTS signal is inactive(="1") > > If you have any other question, please do not hesitate to contact us again. > > Thank you. > > > > > > Sollae Systems wrote: > > ------------------------------------ > > Hello, > > > > This is Sollae systems support team. > > > > > > 1. Serial Rx buffer size : 2048 > > Serial Tx buffer size : 4096 > > > > > > 2. When you use UART RTS, RTS is LOW("0") Active signal. > > It means that if CSE-M53N doesn'sst use RTS/CTS, RTS signal should keep HIGH("1"), on the other hands when CSE-M53N use RTS/CTS, it might be LOW("0") Please refer to attached file. > > > > > > 3. CTS is Input pin. "RTS" stands for Request to Send and "CTS" stand for Clear to Send. > > Before receiving data from user device, CSE-M53N sends LOW signal to user device(CTS). > > This process is to let the user device know that the module is ready to receive data. > > > > [cse-m53n] <----------------DATA-------------[user device] > > RTS(pin#8) ----------------LOW--------------> CTS > > > > > > > > In this case, Before sending data to user device, User device sends signal to CSE-M53N > > [cse-m53n] -----------------DATA------------> [user device] > > CTS(pin#7) <---------------serial----------- RTS > > > > > > If you have any other question, please do not hesitate to contact us again. > > > > Thank you. > > > > > > > > > > > PM wrote: > > > ------------------------------------ > > > Hi, i have some question about CSE-M53N, respect to CST/RTS > > > > > > 1-What is the size of the buffers TX and RX? > > > 2-The RTS signal, when is "1" and when is "0"? At determined amount of data on buffer? > > > 3-When i put CTS to "1", the module complete the transmission of the byte in progress and stop? Or how works it? > > > > > > Thanks
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