- working SREC

git-svn-id: http://moon:8086/svn/projects/HendiControl@51 fda53097-d464-4ada-af97-ba876c37ca34
2019-03-03 12:34:46 +00:00
parent 9776a64598
commit 2c6927ff43
7 changed files with 457 additions and 15 deletions
@@ -0,0 +1,53 @@
+/*
+ * uart.h
+ *
+ * Created: 20.02.2019 20:50:01
+ *  Author: jens
+ */ 
+
+
+#ifndef UART_H_
+#define UART_H_
+
+#include "machine.h"
+
+#define UART_PRESCALE(baudrate, smpPerBit) ((5+ 10*F_CPU / (baudrate*smpPerBit) - 1)/10)
+
+void uart_init(uint32_t baudrate);
+void uart_putc(char c);
+char uart_getc(void);
+void uart_puts(char const *str);
+
+inline void print_byte(char byte)
+{
+	int i;
+	unsigned char c, nibble;
+
+	for (i=0; i < 2; i++)
+	{
+		nibble = (char)((byte >> 4) & 0xF);
+		byte <<= 4;
+
+		if (nibble < 10)
+			c = nibble + '0';
+		else
+			c = nibble + 'A' - 10;
+
+		uart_putc(c);
+	}
+}
+
+inline void print_word(uint16_t word)
+{
+	int i;
+	unsigned char c;
+
+	for (i=0; i < 2; i++)
+	{
+		c = (char) (word >> 8);
+		print_byte(c);
+		word <<= 8;
+	}
+}
+
+#endif /* UART_H_ */