Reincarnate the sensinode/cc2430 port

cpu/cc2430/dev/uart0.c

@@ -0,0 +1,69 @@
+/**
+ * \file
+ *
+ *   uart0 write routines
+ *
+ * \author
+ *
+ *   Anthony "Asterisk" Ambuehl
+ *
+ */
+#include <stdlib.h>
+#include <string.h>
+
+#include "cc2430_sfr.h"
+#include "dev/uart0.h"
+
+#if UART_ZERO_ENABLE
+/*---------------------------------------------------------------------------*/
+void
+uart0_init()
+{
+  UART_SET_SPEED(0, UART_115_M, UART_115_E);
+
+#ifdef UART0_ALTERNATIVE_2
+  PERCFG |= U0CFG;  /*alternative port 2 = P1.5-2*/
+#ifdef UART0_RTSCTS
+  P1SEL |= 0x3C;    /*peripheral select for TX and RX, RTS, CTS*/
+#else
+  P1SEL |= 0x30;    /*peripheral select for TX and RX*/
+  P1 &= ~0x08;    /*RTS down*/
+#endif
+  P1DIR |= 0x28;    /*RTS, TX out*/
+  P1DIR &= ~0x14;   /*CTS & RX in*/
+#else
+  PERCFG &= ~U0CFG; /*alternative port 1 = P0.5-2*/
+#ifdef UART0_RTSCTS
+  P0SEL |= 0x3C;    /*peripheral select for TX and RX, RTS, CTS*/
+#else
+  P0SEL |= 0x0C;    /*peripheral select for TX and RX*/
+  P0 &= ~0x20;    /*RTS down*/
+#endif
+  P0DIR |= 0x28;    /*RTS & TX out*/
+  P0DIR &= ~0x14;   /*CTS & RX in*/
+#endif
+
+
+#ifdef UART0_RTSCTS
+  U0UCR = 0x42;   /*defaults: 8N1, RTS/CTS, high stop bit*/
+#else
+  U0UCR = 0x02;   /*defaults: 8N1, no flow control, high stop bit*/
+#endif
+
+  U0CSR = U_MODE | U_RE | U_TXB;  /*UART mode, receiver enable, TX done*/
+
+  /*set priority group of group 3 to highest, so the UART won't miss bytes*/
+  IP1 |= IP1_3;
+  IP0 |= IP0_3;
+}
+/*---------------------------------------------------------------------------*/
+/* Write one byte over the UART. */
+void
+uart0_writeb(uint8_t byte)
+{
+  IRCON2_UTX0IF = 0;
+  U0BUF = byte;
+  while(!IRCON2_UTX0IF); /* Wait until byte has been transmitted. */
+  IRCON2_UTX0IF = 0;
+}
+#endif