printing complete status infos

module06/ex01/uart.c

@@ -27,27 +27,36 @@ void uart_tx(char c) {
 	UDR0 = (unsigned char) c;														// 20.11.1 : Put data into buffer, UDRn – USART I/O Data Register (read and write)
 }
 
-void uart_printstr(const char* str) {
+uint16_t uart_printstr(const char* str) {
+	uint16_t size = 0;
 	while (*str) {
 		uart_tx(*str);
 		str++;
+		size++;
 	}
+	return size;
 }
 
-void uart_printstr_endl(const char* str) {
-	uart_printstr(str);
-	uart_printstr("\r\n");
+uint16_t uart_printstr_endl(const char* str) {
+	uint16_t size = 0;
+	size += uart_printstr(str);
+	size += uart_printstr("\r\n");
+	return size;
 }
 
-void uart_printstr_itoa_base(uint64_t value, uint8_t base) {
+uint16_t uart_printstr_itoa_base(uint64_t value, uint8_t base) {
 	char buffer[100] = {0};
+	uint16_t size = 0;
 	int_to_string_base((uint16_t)value, buffer, base);
-	uart_printstr(buffer);
+	size += uart_printstr(buffer);
+	return size;
 }
 
-void uart_printstr_itoa_base_endl(uint64_t value, uint8_t base) {
-	uart_printstr_itoa_base(value, base);
-	uart_printstr("\r\n");
+uint16_t uart_printstr_itoa_base_endl(uint64_t value, uint8_t base) {
+	uint16_t size = 0;
+	size += uart_printstr_itoa_base(value, base);
+	size += uart_printstr("\r\n");
+	return size;
 }
 
 // ISR(USART_RX_vect) {																// Table 12-6 : we select the code for USART Receive