libs/RFID.MFRC522
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deadline is ultimately a const value

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This commit is contained in:
Jared Hancock
2021-08-23 09:55:35 -05:00
committed by Rotzbua
parent 3b760c359a
commit 1ff0b14d2e
1 changed files with 3 additions and 3 deletions
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6
src/MFRC522.cpp
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@@ -167,7 +167,7 @@ MFRC522::StatusCode MFRC522::PCD_CalculateCRC( byte *data, ///< In: Pointer to
// indicate that the CRC calculation is complete in a loop. If the // indicate that the CRC calculation is complete in a loop. If the
// calculation is not indicated as complete in ~90ms, then time out // calculation is not indicated as complete in ~90ms, then time out
// the operation. // the operation.
uint32_t deadline = millis() + 89; const uint32_t deadline = millis() + 89;
do { do {
// DivIrqReg[7..0] bits are: Set2 reserved reserved MfinActIRq reserved CRCIRq reserved reserved // DivIrqReg[7..0] bits are: Set2 reserved reserved MfinActIRq reserved CRCIRq reserved reserved
@@ -491,7 +491,7 @@ MFRC522::StatusCode MFRC522::PCD_CommunicateWithPICC( byte command, ///< The co
// When they are set in the ComIrqReg register, then the command is // When they are set in the ComIrqReg register, then the command is
// considered complete. If the command is not indicated as complete in // considered complete. If the command is not indicated as complete in
// ~36ms, then consider the command as timed out. // ~36ms, then consider the command as timed out.
uint32_t deadline = millis() + 36; const uint32_t deadline = millis() + 36;
bool completed = false; bool completed = false;
do { do {
@@ -507,7 +507,7 @@ MFRC522::StatusCode MFRC522::PCD_CommunicateWithPICC( byte command, ///< The co
} }
while (static_cast<uint32_t> (millis()) < deadline); while (static_cast<uint32_t> (millis()) < deadline);
// 36ms and nothing happend. Communication with the MFRC522 might be down. // 36ms and nothing happened. Communication with the MFRC522 might be down.
if (!completed) { if (!completed) {
return STATUS_TIMEOUT; return STATUS_TIMEOUT;
} }