Intial code push

Telem_Debug/Debug3/LTCspi.c

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+/*
+ *  LTCspi.c
+ *  
+ *  Created by Byron Izenbaard on 6/8/11.
+ *  Modified by Kenwood Hoben on 5/26/12
+ *  
+ *  Modified for BPS_V2 by Scott Haver on 11/03/15
+ *
+ *  Copyright 2015 Western Michigan University Sunseeker. All rights reserved.
+ *
+ */
+#include<msp430x54xa.h>
+ 
+void LTC1SPI_init(void) 
+{
+	UCA2CTL1 |= UCSWRST;	//software reset
+	UCA2CTL0 = UCSYNC | UCMODE_0 | UCMST | UCMSB | UCCKPL; //data-capt then change; MSB first; Master; 3-pin SPI
+	UCA2CTL1 |= UCSSEL_2;	// SMCLK - 8 MHz
+	UCA2BR1 = 0x00;
+	UCA2BR0 = 0x08;			// BR = 1 MHz (max for LTC)
+	UCA2STAT &= ~UCLISTEN;	// not in loopback mode
+	UCA2CTL1 &= ~UCSWRST;	//clear software reset
+}
+
+void LTC1_transmit(unsigned char data)
+{
+  UCA2TXBUF = data;
+  while((UCA2STAT & UCBUSY) != 0);	// Wait for Rx completion (implies Tx is also complete)
+  UCA2RXBUF;
+}
+
+unsigned char LTC1_exchange(unsigned char data)
+{
+  UCA2TXBUF = data;
+  while((UCA2STAT & UCBUSY) != 0);	// Wait for Rx completion (implies Tx is also complete)
+  return(UCA2RXBUF);
+}
+
+void LTC2SPI_init(void) 
+{
+	UCB2CTL1 |= UCSWRST;	//software reset
+	UCB2CTL0 = UCSYNC | UCMODE_0 | UCMST | UCMSB | UCCKPL; //data-capt then change; MSB first; Master; 3-pin SPI
+	UCB2CTL1 |= UCSSEL_2;	// SMCLK - 8 MHz
+	UCB2BR1 = 0x00;
+	UCB2BR0 = 0x08;			// BR = 1 MHz (max for LTC)
+	UCB2STAT &= ~UCLISTEN;	// not in loopback mode
+	UCB2CTL1 &= ~UCSWRST;	//clear software reset
+}
+
+void LTC2_transmit(unsigned char data)
+{
+  UCB2TXBUF = data;
+  while((UCB2STAT & UCBUSY) != 0);	// Wait for Rx completion (implies Tx is also complete)
+  UCB2RXBUF;
+}
+
+unsigned char LTC2_exchange(unsigned char data)
+{
+  UCB2TXBUF = data;
+  while((UCB2STAT & UCBUSY) != 0);	// Wait for Rx completion (implies Tx is also complete)
+  return(UCB2RXBUF);
+}
+
+void LTC3SPI_init(void) 
+{
+	UCB3CTL1 |= UCSWRST;	//software reset
+	UCB3CTL0 = UCSYNC | UCMODE_0 | UCMST | UCMSB | UCCKPL; //data-capt then change; MSB first; Master; 3-pin SPI
+	UCB3CTL1 |= UCSSEL_2;	// SMCLK - 8 MHz
+	UCB3BR1 = 0x00;
+	UCB3BR0 = 0x08;			// BR = 1 MHz (max for LTC)
+	UCB3STAT &= ~UCLISTEN;	// not in loopback mode
+	UCB3CTL1 &= ~UCSWRST;	//clear software reset
+}
+
+void LTC3_transmit(unsigned char data)
+{
+  UCB3TXBUF = data;
+  while((UCB3STAT & UCBUSY) != 0);	// Wait for Rx completion (implies Tx is also complete)
+  UCB3RXBUF;
+}
+
+unsigned char LTC3_exchange(unsigned char data)
+{
+  UCB3TXBUF = data;
+  while((UCB3STAT & UCBUSY) != 0);	// Wait for Rx completion (implies Tx is also complete)
+  return(UCB3RXBUF);
+}