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Adjusted the minimum Turnaround time for ARM and AVR ports to give a minimum since there are errors induced from the clock and from rounding.

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This commit is contained in:
skarg
2007-08-20 19:39:36 +00:00
parent 1d46e28189
commit 03dfa101c9
3 changed files with 9 additions and 11 deletions
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bacnet-stack/ports/at91sam7s/makefile
+3 -1
View File
@@ -8,6 +8,7 @@ CC=arm-elf-gcc
OBJCOPY=arm-elf-objcopy OBJCOPY=arm-elf-objcopy
OBJDUMP=arm-elf-objdump OBJDUMP=arm-elf-objdump
AR=arm-elf-ar AR=arm-elf-ar
SIZE = arm-elf-size
LDSCRIPT=at91sam7s256.ld LDSCRIPT=at91sam7s256.ld
@@ -79,8 +80,9 @@ AOBJ = $(ASRC:.s=.o)
COBJ = $(CSRC:.c=.o) COBJ = $(CSRC:.c=.o)
COREOBJ = $(CORESRC:.c=.o) COREOBJ = $(CORESRC:.c=.o)
all: $(TARGET).bin all: $(TARGET).bin $(TARGET).elf
$(OBJDUMP) $(ODFLAGS) $(TARGET).elf > $(TARGET).dmp $(OBJDUMP) $(ODFLAGS) $(TARGET).elf > $(TARGET).dmp
$(SIZE) $(TARGET).elf
$(TARGET).bin: $(TARGET).elf $(TARGET).bin: $(TARGET).elf
$(OBJCOPY) $(TARGET).elf $(CPFLAGS) $(TARGET).bin $(OBJCOPY) $(TARGET).elf $(CPFLAGS) $(TARGET).bin
bacnet-stack/ports/at91sam7s/rs485.c
+3 -5
View File
@@ -162,11 +162,9 @@ void RS485_Send_Frame(
/* delay after reception - per MS/TP spec */ /* delay after reception - per MS/TP spec */
if (mstp_port) { if (mstp_port) {
/* wait about 40 bit times since reception */ /* wait a minimum 40 bit times since reception */
turnaround_time = (40*1000)/RS485_Baud; /* at least 1 ms for errors: rounding, clock tick */
if (!turnaround_time) { turnaround_time = 1 + ((Tturnaround*1000)/RS485_Baud);
turnaround_time = 1;
}
while (mstp_port->SilenceTimer() < turnaround_time) { while (mstp_port->SilenceTimer() < turnaround_time) {
/* do nothing - wait for timer to increment */ /* do nothing - wait for timer to increment */
}; };
bacnet-stack/ports/atmega168/rs485.c
+3 -5
View File
@@ -123,11 +123,9 @@ void RS485_Send_Frame(
/* delay after reception - per MS/TP spec */ /* delay after reception - per MS/TP spec */
if (mstp_port) { if (mstp_port) {
/* wait about 40 bit times since reception */ /* wait a minimum 40 bit times since reception */
turnaround_time = (Tturnaround*1000UL)/RS485_Baud; /* at least 1 ms for errors: rounding, clock tick */
if (!turnaround_time) { turnaround_time = 1 + ((Tturnaround*1000UL)/RS485_Baud);
turnaround_time = 1;
}
while (mstp_port->SilenceTimer() < turnaround_time) { while (mstp_port->SilenceTimer() < turnaround_time) {
/* do nothing - wait for timer to increment */ /* do nothing - wait for timer to increment */
}; };