Initial commit of files

2021-01-22 10:16:20 -05:00
parent 32d165ec8f
commit ed92211680
534 changed files with 68563 additions and 19 deletions
--- a/src/libPIC/delay.h
+++ b/src/libPIC/delay.h
@ -0,0 +1,225 @@
+/*****************************************************************************
+ * Copyright (C) 2008
+ * ProbeStar Telematics, LLC
+ * All Rights Reserved.  Proprietary and Confidential.
+ *============================================================================
+ * Delay functions for PIC-16/18 at 20/40 Mhz
+ *----------------------------------------------------------------------------
+ * Make sure this code is compiled with optimization -O -Zg4
+ *
+ * Note accuracy issues below XTAL=16 MHz.
+ * At or above this the loop is exactly 1 micro-second per iteration.
+ * The 20MHz version is correct down to 2 micro-seconds.
+ *
+ * Sample delay routines from HI-TECH were pretty sucky
+*****************************************************************************/
+
+/* prevent multiple inclusions */
+#ifndef _DELAY_H_
+#define _DELAY_H_
+
+/*****************************************************************************
+ * includes
+*****************************************************************************/
+
+#include "system.h"
+#ifdef __linux__
+#include <unistd.h>
+#endif
+
+/*****************************************************************************
+ * defines
+*****************************************************************************/
+
+#ifdef __linux__
+//-----------------------------------------------------------------------------
+// Delays mapped to sleep functions
+//-----------------------------------------------------------------------------
+#define	DelayInit()
+#define DelayUsec(C)	usleep(C)
+#define DelayMsec(C)	usleep((C)*1000)
+#define	DelaySec(C)	sleep(C)
+#else
+//-----------------------------------------------------------------------------
+// Microsecond delay routine
+//-----------------------------------------------------------------------------
+#if XTAL == 20
+// PIC-18 20Mhz
+#define DelayUs(x) { \
+	_dcnt = x; \
+	while(--_dcnt) { \
+		asm("nop"); \
+		asm("nop"); \
+		asm("nop"); \
+	} \
+}
+#elif XTAL == 40
+// PIC-18 40Mhz
+#define DelayUs(x) { \
+	_dcnt = x; \
+	while(--_dcnt) { \
+		asm("nop"); \
+		asm("nop"); \
+		asm("nop"); \
+		asm("nop"); \
+		asm("nop"); \
+		asm("nop"); \
+		asm("nop"); \
+		asm("nop"); \
+	} \
+}
+#endif
+#endif
+
+/*****************************************************************************
+ * macros
+*****************************************************************************/
+
+#ifndef __linux__
+//-----------------------------------------------------------------------------
+// Fixed Delays
+//-----------------------------------------------------------------------------
+#ifdef XTAL == 20
+// 20Mhz PIC-16 or PIC-18
+#define DelayNs0100() { \
+	asm("nop"); \
+}
+#define DelayNs0200() { \
+	asm("nop"); \
+}
+#define DelayNs0300() { \
+	asm("nop"); \
+	asm("nop"); \
+}
+#define DelayNs0400() { \
+	asm("nop"); \
+	asm("nop"); \
+}
+#define DelayNs0500() { \
+	asm("nop"); \
+	asm("nop"); \
+	asm("nop"); \
+}
+#define DelayNs1000() { \
+	asm("nop"); \
+	asm("nop"); \
+	asm("nop"); \
+	asm("nop"); \
+	asm("nop"); \
+}
+
+#elif XTAL == 40
+// PIC-18 40Mhz
+#define DelayNs0100() { \
+	asm("nop"); \
+}
+#define DelayNs0200() { \
+	asm("nop"); \
+	asm("nop"); \
+}
+#define DelayNs0300() { \
+	asm("nop"); \
+	asm("nop"); \
+	asm("nop"); \
+}
+#define DelayNs0400() { \
+	asm("nop"); \
+	asm("nop"); \
+	asm("nop"); \
+	asm("nop"); \
+}
+#define DelayNs0500() { \
+	asm("nop"); \
+	asm("nop"); \
+	asm("nop"); \
+	asm("nop"); \
+	asm("nop"); \
+}
+#define DelayNs1000() { \
+	asm("nop"); \
+	asm("nop"); \
+	asm("nop"); \
+	asm("nop"); \
+	asm("nop"); \
+	asm("nop"); \
+	asm("nop"); \
+	asm("nop"); \
+	asm("nop"); \
+	asm("nop"); \
+}
+#endif
+
+// Nanosecond delays
+#define DelayNs1500() { \
+	DelayNs0500(); \
+	DelayNs1000(); \
+}
+#define DelayNs2000() { \
+	DelayNs1000(); \
+	DelayNs1000(); \
+}
+#define DelayNs3000() { \
+	DelayNs2000(); \
+	DelayNs1000(); \
+}
+#define DelayNs4000() { \
+	DelayNs2000(); \
+	DelayNs2000(); \
+}
+#define DelayNs5000() { \
+	DelayNs2000(); \
+	DelayNs2000(); \
+	DelayNs1000(); \
+}
+
+// Microsecond delays
+#define DelayUs1()	DelayNs1000()
+#define DelayUs2()	DelayNs2000()
+#define DelayUs3()	DelayNs3000()
+#define DelayUs4()	DelayNs4000()
+#define DelayUs5()	DelayNs5000()
+
+#define DelayUs10() { \
+	DelayUs5(); \
+	DelayUs5(); \
+}
+#endif
+
+/*****************************************************************************
+ * structs & typedefs
+*****************************************************************************/
+
+/*****************************************************************************
+ * global constants
+*****************************************************************************/
+
+/*****************************************************************************
+ * global variables
+*****************************************************************************/
+
+#ifndef __linux__
+extern LIBBANK volatile BYTE _dcnt;
+#endif
+
+/*****************************************************************************
+ * C function prototypes
+*****************************************************************************/
+/* export C functions to C++ */
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef __linux__
+extern void DelayInit( void );		// Timer #0 init
+
+// library delay routines
+extern void DelayUsec( BYTE byCount );	// short delays up to 50usec
+extern void DelayUsecW( WORD wCount );	// longer delays over 5usec
+extern void DelayMsec( WORD wCount );
+extern void DelaySec( WORD wCount );
+#endif
+
+#ifdef __cpluscplus
+}
+#endif
+#endif