v2.9

lib/EspSoftwareSerial/examples/bitpattern/bitpattern.ino

@@ -0,0 +1,71 @@
+#include "SoftwareSerial.h"
+
+#ifndef D5
+#if defined(ESP8266)
+#define D8 (15)
+#define D5 (14)
+#define D7 (13)
+#define D6 (12)
+#define RX (3)
+#define TX (1)
+#elif defined(ESP32)
+#define D8 (5)
+#define D5 (18)
+#define D7 (23)
+#define D6 (19)
+#define RX (3)
+#define TX (1)
+#endif
+#endif
+
+SoftwareSerial swSer;
+#ifdef ESP8266
+auto logSer = SoftwareSerial(-1, TX);
+auto hwSer = Serial;
+#else
+auto logSer = Serial;
+auto hwSer = Serial1;
+#endif
+
+constexpr uint32_t TESTBPS = 115200;
+
+void setup() {
+	delay(2000);
+#ifdef ESP8266
+	hwSer.begin(TESTBPS, SERIAL_8N1);
+	hwSer.swap();
+#else
+	hwSer.begin(TESTBPS, SERIAL_8N1, D6, D5);
+#endif
+	logSer.begin(115200);
+	logSer.println(PSTR("\nOne Wire Half Duplex Bitpattern and Datarate Test"));
+	swSer.begin(TESTBPS, SWSERIAL_8N1, D6, D5);
+	swSer.enableIntTx(true);
+	logSer.println(PSTR("Tx on swSer"));
+}
+
+uint8_t val = 0xff;
+
+void loop() {
+	swSer.write((uint8_t)0x00);
+	swSer.write(val);
+	swSer.write(val);
+	auto start = ESP.getCycleCount();
+	int rxCnt = 0;
+	while (ESP.getCycleCount() - start < ESP.getCpuFreqMHz() * 1000000 / 10) {
+		if (hwSer.available()) {
+			auto rxVal = hwSer.read();
+			if ((!rxCnt && rxVal) || (rxCnt && rxVal != val)) {
+				logSer.printf(PSTR("Rx bit error: tx = 0x%02x, rx = 0x%02x\n"), val, rxVal);
+			}
+			++rxCnt;
+		}
+	}
+	if (rxCnt != 3) {
+		logSer.printf(PSTR("Rx cnt error, tx = 0x%02x\n"), val);
+	}
+	++val;
+	if (!val) {
+		logSer.println("Starting over");
+	}
+}