Set the LED of AS7262 on while reading data

Author: lilrabbits

src/boot/ksdk1.1.0/warp-kl03-ksdk1.1-boot.c

@@ -936,7 +936,10 @@ readSensorRegisterAS7262(uint8_t deviceRegister)
 	/*
 	 *	The sensor has only 3 real registers: STATUS Register 0x00, WRITE Register 0x01 and READ register 0x02.
 	 */
-	uint8_t 	cmdBuf_write[2]	= {kWarpI2C_AS726x_SLAVE_WRITE_REG,0xFF}; 
+	uint8_t 	cmdBuf_write[2]	= {kWarpI2C_AS726x_SLAVE_WRITE_REG, 0xFF};
+	uint8_t 	cmdBuf_LEDCTRL[2] = {kWarpI2C_AS726x_SLAVE_WRITE_REG, 0x87};
+	uint8_t 	cmdBuf_LEDON[2] = {kWarpI2C_AS726x_SLAVE_WRITE_REG, 0x1B};
+	uint8_t 	cmdBuf_LEDOFF[2] = {kWarpI2C_AS726x_SLAVE_WRITE_REG, 0x00};
 	uint8_t 	cmdBuf_read[1]	= {kWarpI2C_AS726x_SLAVE_READ_REG};
 	i2c_status_t	returnValue;
 
@@ -955,6 +958,27 @@ readSensorRegisterAS7262(uint8_t deviceRegister)
 
 	cmdBuf_write[1] = deviceRegister;
 
+	returnValue = I2C_DRV_MasterSendDataBlocking(
+							0 /* I2C peripheral instance */,
+							&slave /* The pointer to the I2C device information structure */,
+							cmdBuf_LEDCTRL /* The pointer to the commands to be transferred */,
+							2 /* The length in bytes of the commands to be transferred */,
+							NULL /* The pointer to the data to be transferred */,
+							0 /* The length in bytes of the data to be transferred */,
+							500 /* timeout in milliseconds */);
+
+	/*
+	 *	The LED control register details can be found in Figure 26 of AS7262 detailed descriptions on page 26.
+	 */
+	returnValue = I2C_DRV_MasterSendDataBlocking(
+							0 /* I2C peripheral instance */,
+							&slave /* The pointer to the I2C device information structure */,
+							cmdBuf_LEDON /* The pointer to the commands to be transferred */,
+							2 /* The length in bytes of the commands to be transferred */,
+							NULL /* The pointer to the data to be transferred */,
+							0 /* The length in bytes of the data to be transferred */,
+							500 /* timeout in milliseconds */);
+
 	/*
 	 *	See Page 8 to Page 11 of AS726X Design Considerations for writing to and reading from virtual registers.
 	 *	Write transaction writes the value of the virtual register one wants to read from to the WRITE register 0x01.
@@ -966,7 +990,7 @@ readSensorRegisterAS7262(uint8_t deviceRegister)
 							2 /* The length in bytes of the commands to be transferred */,
 							NULL /* The pointer to the data to be transferred */,
 							0 /* The length in bytes of the data to be transferred */,
-							500 /* timeout in milliseconds */);		
+							500 /* timeout in milliseconds */);
 
 	/*
 	 *	Read transaction which reads from the READ register 0x02.
@@ -979,7 +1003,7 @@ readSensorRegisterAS7262(uint8_t deviceRegister)
 							1 /* The length in bytes of the commands to be transferred */,
 							NULL /* The pointer to the data to be transferred */,
 							0 /* The length in bytes of the data to be transferred */,
-							500 /* timeout in milliseconds */);			
+							500 /* timeout in milliseconds */);
 
 	returnValue = I2C_DRV_MasterReceiveDataBlocking(
 							0 /* I2C peripheral instance */,
@@ -990,6 +1014,28 @@ readSensorRegisterAS7262(uint8_t deviceRegister)
 							1 /* The length in bytes of the data to be transferred and data is transferred from the sensor to master via bus */,
 							500 /* timeout in milliseconds */);
 
+	returnValue = I2C_DRV_MasterSendDataBlocking(
+							0 /* I2C peripheral instance */,
+							&slave /* The pointer to the I2C device information structure */,
+							cmdBuf_LEDCTRL /* The pointer to the commands to be transferred */,
+							2 /* The length in bytes of the commands to be transferred */,
+							NULL /* The pointer to the data to be transferred */,
+							0 /* The length in bytes of the data to be transferred */,
+							500 /* timeout in milliseconds */);
+
+	/*
+	 *	The LED control register details can be found in Figure 26 of AS7262 detailed descriptions on page 26.
+	*/
+	returnValue = I2C_DRV_MasterSendDataBlocking(
+							0 /* I2C peripheral instance */,
+							&slave /* The pointer to the I2C device information structure */,
+							cmdBuf_LEDOFF /* The pointer to the commands to be transferred */,
+							2 /* The length in bytes of the commands to be transferred */,
+							NULL /* The pointer to the data to be transferred */,
+							0 /* The length in bytes of the data to be transferred */,
+							500 /* timeout in milliseconds */);
+
+
 	if (returnValue == kStatus_I2C_Success)
 	{
 		//...
@@ -1016,6 +1062,7 @@ initAS7263(const uint8_t i2cAddress, WarpI2CDeviceState volatile *  deviceStateP
 	return;
 }
 
+
 WarpStatus
 readSensorRegisterAS7263(uint8_t deviceRegister)
 {