EspSoftwareSerial 6.4.0: Non-parity modes save 56 bytes of heap memory (loopback example) #6882
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Hardened code in non-parity mode against setting parity case by case. Waveform generator is back after one release without.
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The saved heap is offset by 8 bytes more used IRAM, but buffer sizes can vary widely, depending on use case, therefore this change is given preference.
Hardened code in non-parity mode against setting parity case by case.
Waveform generator is back after one release without it.