initial commit

lib/README

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+
+This directory is intended for project specific (private) libraries.
+PlatformIO will compile them to static libraries and link into executable file.
+
+The source code of each library should be placed in an own separate directory
+("lib/your_library_name/[here are source files]").
+
+For example, see a structure of the following two libraries `Foo` and `Bar`:
+
+|--lib
+|  |
+|  |--Bar
+|  |  |--docs
+|  |  |--examples
+|  |  |--src
+|  |     |- Bar.c
+|  |     |- Bar.h
+|  |  |- library.json (optional, custom build options, etc) https://docs.platformio.org/page/librarymanager/config.html
+|  |
+|  |--Foo
+|  |  |- Foo.c
+|  |  |- Foo.h
+|  |
+|  |- README --> THIS FILE
+|
+|- platformio.ini
+|--src
+   |- main.c
+
+and a contents of `src/main.c`:
+```
+#include <Foo.h>
+#include <Bar.h>
+
+int main (void)
+{
+  ...
+}
+
+```
+
+PlatformIO Library Dependency Finder will find automatically dependent
+libraries scanning project source files.
+
+More information about PlatformIO Library Dependency Finder
+- https://docs.platformio.org/page/librarymanager/ldf.html

lib/peripheral/temp.c

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+#include "temp.h"
+
+void Delay1ms(uint y) {
+	uint x;
+	for(; y > 0; y--) {
+		for(x = 110; x > 0; x--);
+	}
+}
+
+uchar Ds18b20Init(void) {
+	uchar i;
+	DSPORT = 0;		// Pull down bus
+	i = 70;
+	while(i--);
+	DSPORT = 1;		// Pull up bus
+	i = 0;
+	while(DSPORT) {
+		Delay1ms(1);
+		i++;
+		if(i > 5) return 0;
+	}
+	return 1;
+}
+
+void Ds18b20WriteByte(uchar payload) {
+	uint i, j;
+	for(j = 0; j < 8; j++) {
+		DSPORT = 0;
+		i++;
+		DSPORT = payload & 0x01;
+		i = 6;
+		while(i--);
+		DSPORT = 1;
+		payload >>= 1;
+	}
+}
+
+uchar Ds18b20ReadByte(void) {
+	uchar byte, bi;
+	uint i, j;
+	for(j = 8; j > 0; j--) {
+		DSPORT = 0;
+		i++;
+		DSPORT = 1;
+		i++;
+		i++;
+		bi = DSPORT;
+		byte = (byte >> 1) | (bi << 7);
+		i = 4;
+		while(i--);
+	}
+	return byte;
+}
+
+void Ds18b20ChangTemp(void) {
+	Ds18b20Init();
+	Delay1ms(1);
+	Ds18b20WriteByte(0xCC);
+	Ds18b20WriteByte(0x44);
+}
+
+void Ds18b20ReadTempCom() {
+	Ds18b20Init();
+	Delay1ms(1);
+	Ds18b20WriteByte(0xCC);
+	Ds18b20WriteByte(0xBE);
+}
+
+int Ds18b20ReadTemp() {
+	int temp = 0;
+	uchar th, tl;
+	Ds18b20ChangTemp();
+	Ds18b20ReadTempCom();
+	temp = th;
+	temp <<= 8;
+	temp |= tl;
+	return temp;
+}

lib/peripheral/temp.h

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+#ifndef __TEMP_H
+#define __TEMP_H
+
+#include <8052.h>
+
+#ifndef uchar
+#define uchar unsigned char
+#endif
+
+#ifndef uint
+#define uint unsigned int
+#endif
+
+#define DSPORT P3_7
+
+void 	Delay1ms(uint y);
+uchar 	Ds18b20Init(void);
+void 	Ds18b20WriteByte(uchar com);
+uchar 	Ds18b20ReadByte(void);
+void 	Ds18b20ChangTemp(void);
+void 	Ds18b20ReadTempCom(void);
+int 	Ds18b20ReadTemp(void);
+
+#endif