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Style fixes and added some comments

This commit is contained in:
Arti Zirk 2016-11-20 00:51:04 +02:00
parent f3676e9408
commit 04031523d4
4 changed files with 21 additions and 13 deletions
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14
src/hmi_msg.h
View File

@ -2,18 +2,18 @@
#ifndef _HMI_MSG_H_
#define _HMI_MSG_H_
#define PROG_VERSION "Version: %S built on: %S %S\n"
#define LIBC_VERSION "avr-libc version: %S\n"
#define PROG_VERSION "Version: %S built on: %S %S"
#define LIBC_VERSION "avr-libc version: %S"
#define STUD_NAME "Arti Zirk"
#define GET_MONTH_MSG "Enter Month name first letter >"
#define UPTIME_MSG "Uptime: %lu s"
const char m1[] PROGMEM = "January";
const char m1[] PROGMEM = "January";
const char m2[] PROGMEM = "February";
const char m3[] PROGMEM = "March";
const char m4[] PROGMEM = "April";
const char m5[] PROGMEM = "May";
const char m6[] PROGMEM = "June";
const char m3[] PROGMEM = "March";
const char m4[] PROGMEM = "April";
const char m5[] PROGMEM = "May";
const char m6[] PROGMEM = "June";
PGM_P const months[] PROGMEM = {m1,m2,m3,m4,m5,m6};
#endif /* _HMI_MSG_H_ */

10
src/main.c
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@ -52,9 +52,9 @@ static inline void init_hw (void)
static inline void start_ui (void)
{
// Print program and libc versions
fprintf_P(stderr, PSTR(PROG_VERSION),
fprintf_P(stderr, PSTR(PROG_VERSION "\n"),
PSTR(GIT_DESCR), PSTR(__DATE__), PSTR(__TIME__));
fprintf_P(stderr, PSTR(LIBC_VERSION), PSTR(__AVR_LIBC_VERSION_STRING__));
fprintf_P(stderr, PSTR(LIBC_VERSION "\n"), PSTR(__AVR_LIBC_VERSION_STRING__));
// print student name
fprintf_P(stdout, PSTR(STUD_NAME));
@ -89,11 +89,15 @@ static inline void search_month (void)
}
}
// this is fine because even when the hd44780 address counter goes over 0xf4
// we still have quite a few addresses left until address counter overflow
// and we also dont care about the data that is at the end of the ddram
lcd_puts_P(PSTR(" ")); // Clear the end of the line
fprintf_P(stdout, PSTR(GET_MONTH_MSG));
}
static inline void heartbeat (void) {
static inline void heartbeat (void)
{
static time_t time_prev;
time_t time_cur = time(NULL);
if (time_cur <= time_prev) {

4
src/uart_wrap.c
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@ -17,6 +17,10 @@ int uart0_putc_wrap(char c, FILE *stream)
int uart0_getc_wrap(FILE *stream)
{
(void) stream;
// Probabbly should add some error checking in here but because
// this function is only called out when there is at least one character
// available in the input buffer (see main.c line 114) then error checking
// is not currently necessary.
return (char)uart0_getc();
}

6
src/uart_wrap.h
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@ -1,5 +1,5 @@
#ifndef _UART_H_
#define _UART_H_
#ifndef _UART_WRAP_H_
#define _UART_WRAP_H_
int uart0_putc_wrap(char c, FILE *stream);
int uart0_getc_wrap(FILE *stream);
@ -12,4 +12,4 @@ int uart3_putc_wrap(char c, FILE *stream);
FILE uart0_io = FDEV_SETUP_STREAM(uart0_putc_wrap, uart0_getc_wrap, _FDEV_SETUP_RW);
FILE uart3_out = FDEV_SETUP_STREAM(uart3_putc_wrap, NULL, _FDEV_SETUP_WRITE);
#endif /* _UART_H_ */
#endif /* _UART_WRAP_H_ */