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Convert the clock_flag variable into 3 separate varables. 

This costs 2 bytes of ram, but saves 60 bytes of flash. Doing so
also eliminates the need to disable interrupts while clearing flags
in the ifclock macro.

Conflicts:

	clock.c
	timer.c
	timer.h
This commit is contained in:
Jim McGee 2011-05-08 22:13:20 -07:00 committed by Michael Moon
parent 1e198e16ea
commit f22e691fee
6 changed files with 18 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
clock.c
View File

@ -35,7 +35,7 @@ void clock_250ms() {
SREG = save_reg;
}
ifclock(CLOCK_FLAG_1S) {
ifclock(clock_flag_1s) {
if (debug_flags & DEBUG_POSITION) {
// current position
sersendf_P(PSTR("Pos: %ld,%ld,%ld,%ld,%lu\n"), current_position.X, current_position.Y, current_position.Z, current_position.E, current_position.F);
@ -68,7 +68,7 @@ void clock_10ms() {
temp_tick();
ifclock(CLOCK_FLAG_250MS) {
ifclock(clock_flag_250ms) {
clock_250ms();
}

2
dda_queue.c
View File

@ -168,7 +168,7 @@ void queue_flush() {
/// waits for a space in the queue to become available
void queue_wait() {
for (;queue_empty() == 0;) {
ifclock(CLOCK_FLAG_10MS) {
ifclock(clock_flag_10ms) {
clock_10ms();
}
}

2
gcode_process.c
View File

@ -158,7 +158,7 @@ void process_gcode_command() {
queue_wait();
// delay
for (;next_target.P > 0;next_target.P--) {
ifclock(CLOCK_FLAG_10MS) {
ifclock(clock_flag_10ms) {
clock_10ms();
}
delay_ms(1);

2
mendel.c
View File

@ -262,7 +262,7 @@ int main (void)
gcode_parse_char(c);
}
ifclock(CLOCK_FLAG_10MS) {
ifclock(clock_flag_10ms) {
clock_10ms();
}
}

11
timer.c
View File

@ -33,8 +33,11 @@ uint8_t clock_counter_10ms = 0;
uint8_t clock_counter_250ms = 0;
/// keep track of when 1s has elapsed
uint8_t clock_counter_1s = 0;
/// flags to tell main loop when above have elapsed
volatile uint8_t clock_flag = 0;
volatile uint8_t clock_flag_10ms = 0;
volatile uint8_t clock_flag_250ms = 0;
volatile uint8_t clock_flag_1s = 0;
/// comparator B is the system clock, happens every TICK_TIME
ISR(TIMER1_COMPB_vect) {
@ -47,17 +50,17 @@ ISR(TIMER1_COMPB_vect) {
clock_counter_10ms += TICK_TIME_MS;
if (clock_counter_10ms >= 10) {
clock_counter_10ms -= 10;
clock_flag |= CLOCK_FLAG_10MS;
clock_flag_10ms = 1;
clock_counter_250ms += 1;
if (clock_counter_250ms >= 25) {
clock_counter_250ms -= 25;
clock_flag |= CLOCK_FLAG_250MS;
clock_flag_250ms = 1;
clock_counter_1s += 1;
if (clock_counter_1s >= 4) {
clock_counter_1s -= 4;
clock_flag |= CLOCK_FLAG_1S;
clock_flag_1s = 1;
}
}
}

11
timer.h
View File

@ -11,12 +11,13 @@
/*
clock stuff
*/
extern volatile uint8_t clock_flag;
extern volatile uint8_t clock_flag_10ms;
extern volatile uint8_t clock_flag_250ms;
extern volatile uint8_t clock_flag_1s;
#define CLOCK_FLAG_10MS 1
#define CLOCK_FLAG_250MS 2
#define CLOCK_FLAG_1S 4
#define ifclock(F) for (;clock_flag & (F);clock_flag &= ~(F))
// If the specific bit is set, execute the following block exactly once
// and then clear the flag.
#define ifclock(F) for (;F;F=0 )
/*
timer stuff