Eveldee/WaveshareUARTFingerprintSensor
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Check amount of received data

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Fix a bug
This commit is contained in:
Eveldee
2020-12-14 22:00:38 +01:00
parent 7455000aae
commit 19b6225b25
1 changed files with 7 additions and 1 deletions
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8
WaveshareUARTFingerprintSensor/FingerprintSensor.cs
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@@ -110,7 +110,13 @@ namespace WaveshareUARTFingerprintSensor
_serialPort.Write(buffer, 0, buffer.Length);
// Response
_serialPort.Read(buffer, 0, buffer.Length);
int length = buffer.Length;
int offset = 0;
do
{
int toRead = length - offset;
offset += _serialPort.Read(buffer, offset, toRead);
} while (offset < length);
if (buffer[0] != PacketSeparator || buffer[7] != PacketSeparator || buffer[1] != (byte)commandType)
{