v0.2: first commit

examples/ci2c_master_write/ci2c_master_write.ino

@@ -0,0 +1,45 @@
+/*
+	Master i2c write
+	Write some bytes to FRAM and compare them
+	with what's read afterwards
+
+	This example code is in the public domain.
+
+	created Jan 12 2017
+	latest mod Jan 16 2017
+	by SMFSW
+*/
+
+#include <ci2c.h>
+
+I2C_SLAVE FRAM;
+
+void setup() {
+	Serial.begin(115200);	// start serial for output
+	I2C_init(I2C_LOW);		// init with low speed (400KHz)
+	I2C_slave_init(&FRAM, 0x50, I2C_16B_REG);
+}
+
+void loop() {
+	const uint16_t reg_addr = 0xF000;
+	uint8_t str[7] = { 0x55, 20, 30, 40, 50, 60, 0xAA };
+	bool match = true;
+	uint8_t str_out[7];
+	memset(&str_out, 0xEE, sizeof(str));
+
+	I2C_write(&FRAM, reg_addr, &str[0], sizeof(str));	// Addr 0, 2bytes Addr size, str, read chars for size of str
+
+	Serial.println();
+
+	I2C_read(&FRAM, reg_addr, &str_out[0], sizeof(str));
+	for (uint8_t i = 0; i < sizeof(str_out); i++)
+	{
+		if (str[i] != str_out[i])	{ match = false; }
+		Serial.print(str_out[i], HEX); // receive a byte as character
+		Serial.print(" ");
+	}
+	Serial.print("WRITE ");
+	Serial.print(match ? "OK" : "NOK");
+
+	while(1);
+}