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GPS - handle data loss occurs in the start of a UBLOX frame

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This commit is contained in:
Dominic Clifton 2014-12-13 01:42:35 +00:00
parent 20f32d632c
commit 1c8416db2c
2 changed files with 7 additions and 1 deletions
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3
Makefile
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@ -266,7 +266,7 @@ EUSTM32F103RC_SRC = startup_stm32f10x_hd_gcc.S \
drivers/bus_i2c_stm32f10x.c \ drivers/bus_i2c_stm32f10x.c \
drivers/bus_spi.c \ drivers/bus_spi.c \
drivers/compass_hmc5883l.c \ drivers/compass_hmc5883l.c \
drivers/display_ug2864hsweg01.h \ drivers/display_ug2864hsweg01.c \
drivers/gpio_stm32f10x.c \ drivers/gpio_stm32f10x.c \
drivers/inverter.c \ drivers/inverter.c \
drivers/light_led_stm32f10x.c \ drivers/light_led_stm32f10x.c \
@ -424,6 +424,7 @@ MASSIVEF3_SRC = $(STM32F3DISCOVERY_SRC) \
$(COMMON_SRC) $(COMMON_SRC)
SPARKY_SRC = $(STM32F30x_COMMON_SRC) \ SPARKY_SRC = $(STM32F30x_COMMON_SRC) \
drivers/display_ug2864hsweg01.c \
drivers/accgyro_mpu9150.c \ drivers/accgyro_mpu9150.c \
drivers/barometer_ms5611.c \ drivers/barometer_ms5611.c \
$(HIGHEND_SRC) \ $(HIGHEND_SRC) \

5
src/main/io/gps.c
View file

@ -24,6 +24,8 @@
#include "platform.h" #include "platform.h"
#include "build_config.h"
#include "common/maths.h" #include "common/maths.h"
#include "drivers/system.h" #include "drivers/system.h"
@ -908,6 +910,9 @@ static bool gpsNewFrameUBLOX(uint8_t data)
_skip_packet = true; _skip_packet = true;
} }
_payload_counter = 0; // prepare to receive payload _payload_counter = 0; // prepare to receive payload
if (_payload_length == 0) {
_step = 7;
}
break; break;
case 6: case 6:
_ck_b += (_ck_a += data); // checksum byte _ck_b += (_ck_a += data); // checksum byte