seniordesign-firmware Changeset - dc6296adf348

Changeset - dc6296adf348

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kripperger@CL-SEC241-09.cedarville.edu - 12 years ago 2012-11-28 11:49:58
kripperger@CL-SEC241-09.cedarville.edu

External Temperature Sensor Output Config.

1 file changed with 8 insertions and 7 deletions:

slave/slave/lib/sensors.c

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slave/slave/lib/sensors.c

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@@ @@ -11,36 +11,37 @@ @@
 #include <avr/interrupt.h>
 #include "../config.h"
 #include <util/delay.h>
 #include "sensors.h"
 #include "spi.h"
-#include "serial.h"	//Debug
+#include "serial.h"	//DEBUG////////////////////////////////////////////////////////////////////////////
 int16_t readSpiTemp()
+{
 	char buff[32];//DEBUG
+	char buff[32];		//DEBUG////////////////////////////////////////////////////////////////////////
-	// select TEMP wait 100 microseconds then read four bytes
+	// Select TEMP wait 100 microseconds then read four bytes
 	SELECT_TEMP;
 	_delay_us(100);
 	uint8_t one = send_spi(0xFF);
 	_delay_us(100);
 	uint8_t two = send_spi(0xFF);
 	_delay_us(100);
 	uint8_t three = send_spi(0xFF);
 	_delay_us(100);
 	uint8_t four = send_spi(0xFF);
 	DESELECT_TEMP;
 	uint8_t error = (two & 0x01);
 	int16_t temperature = ((one<<4)|(two>>4));
 	temperature = (temperature & (0x0800)) ? (temperature & 0xF000) : temperature;	// Sign extend
 	int16_t temperature = ((one<<6)&(two>>2));
 	temperature = (temperature & (0x2000)) ? (temperature & 0xC000) : temperature;	// Sign extend
 	temperature = error ? 0x00DE : temperature;	// Error Condition. If error is detected output is set to 222 degrees (0x00DE)
 			sprintf(buff, "log: %u,%u,%u,%u\r\n", one,two,three,four);
 			serial0_sendString(buff);
 			sprintf(buff, "Temperature: %d     Error: %u\r\n", temperature,error);		//DEBUG/////////////////////////////
 			serial0_sendString(buff);													//DEBUG/////////////////////////////
 	return temperature;
+}
@@ \ No newline at end of file @@

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