11/13/2022 0 Comments Arduino serial port datareceived![]() I have increased the Arduino serial buffer, and changed boards, but the problem persists. I have looked through with an oscilloscope and I can see the waveform coming out as 0x55AA, as it should be. Because of this, I question the validity of the data being transmitted.Ĭan someone explain to me why this is happening, and what solutions I can try to remedy this, please? It seems the second half of each byte is correct, but not the first, and I have some bits going high and some going low when they shouldn't. I am, however, getting 0xD56A most of the time, but sometimes I get values like 0xB5CA. The header I'm supposed to be getting is 0x55AA. When I try to read the data using the Arduino, I don't get what is expected. I have also confirmed that the device works, as when it is connected directly to the computer, it is read fine. In fact, I have successfully communicated between MatLab and Arduino at that baudrate without problems. I have read online that the Arduino serial can handle 460,800 bps without a problem. ![]() The device is set to transmit a 16-bit header, followed by 66 bytes of data, at a baudrate of 460,800 and at 200Hz. I have an RS422 interface set up between an Arduino and a custom-built device. ![]()
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