I'm using nrf52840 with nRF5_SDK_17.0.0_9d13099 and usbd_audio loopback example.
The example works fine with the given hex file
but when i compile it myself, the signal seems to have variable type issue.
but in debugging everthings works fine
I have suspect it's an issue with optimization which mess with the buffer or the signal input, but it seems that removing optimisation option has not resolved the problem.
Maybe someone could share with me their Makefile for the project?
You should find makefile in \nRF5_SDK_17.0.0_9d13099\examples\peripheral\usbd_audio\pca10056\blank\armgcc
The following toolchains/devices have been used for testing and verification:
- ARM: MDK-ARM version 5.25
- GCC: GCC ARM Embedded 9.2019q4.major
- IAR: IAR Workbench 7.80.4
- SES: SES 4.50
The issue looks very much like some sort of buffer issue yes, what is the frequency here? Just want to get an idea of the duration.
I have used
GCC: GCC ARM Embedded 9 2020-q2-update but this should not make any difference, no?
below is my Makefile, I'm using MinGW 6.3.0-1
PROJECT_NAME := usbd_audio_pca10056 TARGETS := nrf52840_xxaa OUTPUT_DIRECTORY := _build SDK_ROOT := ../../../../../.. PROJ_DIR := ../../.. $(OUTPUT_DIRECTORY)/nrf52840_xxaa.out: \ LINKER_SCRIPT := usbd_audio_gcc_nrf52.ld # Source files common to all targets SRC_FILES += \ $(SDK_ROOT)/modules/nrfx/mdk/gcc_startup_nrf52840.S \ $(SDK_ROOT)/components/libraries/log/src/nrf_log_backend_rtt.c \ $(SDK_ROOT)/components/libraries/log/src/nrf_log_backend_serial.c \ $(SDK_ROOT)/components/libraries/log/src/nrf_log_backend_uart.c \ $(SDK_ROOT)/components/libraries/log/src/nrf_log_default_backends.c \ $(SDK_ROOT)/components/libraries/log/src/nrf_log_frontend.c \ $(SDK_ROOT)/components/libraries/log/src/nrf_log_str_formatter.c \ $(SDK_ROOT)/components/boards/boards.c \ $(SDK_ROOT)/components/libraries/button/app_button.c \ $(SDK_ROOT)/components/libraries/util/app_error.c \ $(SDK_ROOT)/components/libraries/util/app_error_handler_gcc.c \ $(SDK_ROOT)/components/libraries/util/app_error_weak.c \ $(SDK_ROOT)/components/libraries/fifo/app_fifo.c \ $(SDK_ROOT)/components/libraries/scheduler/app_scheduler.c \ $(SDK_ROOT)/components/libraries/timer/app_timer2.c \ $(SDK_ROOT)/components/libraries/uart/app_uart_fifo.c \ $(SDK_ROOT)/components/libraries/usbd/app_usbd.c \ $(SDK_ROOT)/components/libraries/usbd/class/audio/app_usbd_audio.c \ $(SDK_ROOT)/components/libraries/usbd/app_usbd_core.c \ $(SDK_ROOT)/components/libraries/usbd/app_usbd_string_desc.c \ $(SDK_ROOT)/components/libraries/util/app_util_platform.c \ $(SDK_ROOT)/components/libraries/timer/drv_rtc.c \ $(SDK_ROOT)/components/libraries/hardfault/nrf52/handler/hardfault_handler_gcc.c \ $(SDK_ROOT)/components/libraries/hardfault/hardfault_implementation.c \ $(SDK_ROOT)/components/libraries/util/nrf_assert.c \ $(SDK_ROOT)/components/libraries/atomic_fifo/nrf_atfifo.c \ $(SDK_ROOT)/components/libraries/atomic/nrf_atomic.c \ $(SDK_ROOT)/components/libraries/balloc/nrf_balloc.c \ $(SDK_ROOT)/external/fprintf/nrf_fprintf.c \ $(SDK_ROOT)/external/fprintf/nrf_fprintf_format.c \ $(SDK_ROOT)/components/libraries/memobj/nrf_memobj.c \ $(SDK_ROOT)/components/libraries/ringbuf/nrf_ringbuf.c \ $(SDK_ROOT)/components/libraries/sortlist/nrf_sortlist.c \ $(SDK_ROOT)/components/libraries/strerror/nrf_strerror.c \ $(SDK_ROOT)/integration/nrfx/legacy/nrf_drv_clock.c \ $(SDK_ROOT)/integration/nrfx/legacy/nrf_drv_power.c \ $(SDK_ROOT)/integration/nrfx/legacy/nrf_drv_uart.c \ $(SDK_ROOT)/components/drivers_nrf/nrf_soc_nosd/nrf_nvic.c \ $(SDK_ROOT)/components/drivers_nrf/nrf_soc_nosd/nrf_soc.c \ $(SDK_ROOT)/modules/nrfx/soc/nrfx_atomic.c \ $(SDK_ROOT)/modules/nrfx/drivers/src/nrfx_clock.c \ $(SDK_ROOT)/modules/nrfx/drivers/src/nrfx_gpiote.c \ $(SDK_ROOT)/modules/nrfx/drivers/src/nrfx_power.c \ $(SDK_ROOT)/modules/nrfx/drivers/src/prs/nrfx_prs.c \ $(SDK_ROOT)/modules/nrfx/drivers/src/nrfx_systick.c \ $(SDK_ROOT)/modules/nrfx/drivers/src/nrfx_uart.c \ $(SDK_ROOT)/modules/nrfx/drivers/src/nrfx_uarte.c \ $(SDK_ROOT)/modules/nrfx/drivers/src/nrfx_usbd.c \ $(SDK_ROOT)/components/libraries/bsp/bsp.c \ $(PROJ_DIR)/main.c \ $(SDK_ROOT)/external/segger_rtt/SEGGER_RTT.c \ $(SDK_ROOT)/external/segger_rtt/SEGGER_RTT_Syscalls_GCC.c \ $(SDK_ROOT)/external/segger_rtt/SEGGER_RTT_printf.c \ $(SDK_ROOT)/modules/nrfx/mdk/system_nrf52840.c \ $(SDK_ROOT)/external/utf_converter/utf.c \ # Include folders common to all targets INC_FOLDERS += \ $(SDK_ROOT)/components \ $(SDK_ROOT)/modules/nrfx/mdk \ $(SDK_ROOT)/components/libraries/scheduler \ $(PROJ_DIR) \ $(SDK_ROOT)/components/libraries/timer \ $(SDK_ROOT)/components/libraries/fifo \ $(SDK_ROOT)/components/boards \ $(SDK_ROOT)/components/libraries/strerror \ $(SDK_ROOT)/components/toolchain/cmsis/include \ $(SDK_ROOT)/components/libraries/util \ $(SDK_ROOT)/components/libraries/bsp \ ../config \ $(SDK_ROOT)/components/libraries/usbd/class/audio \ $(SDK_ROOT)/components/libraries/balloc \ $(SDK_ROOT)/components/libraries/ringbuf \ $(SDK_ROOT)/components/libraries/hardfault/nrf52 \ $(SDK_ROOT)/modules/nrfx/hal \ $(SDK_ROOT)/components/libraries/hardfault \ $(SDK_ROOT)/components/libraries/uart \ $(SDK_ROOT)/components/libraries/log \ $(SDK_ROOT)/components/libraries/button \ $(SDK_ROOT)/modules/nrfx \ $(SDK_ROOT)/components/libraries/experimental_section_vars \ $(SDK_ROOT)/integration/nrfx/legacy \ $(SDK_ROOT)/components/libraries/usbd \ $(SDK_ROOT)/components/libraries/delay \ $(SDK_ROOT)/external/segger_rtt \ $(SDK_ROOT)/components/libraries/atomic_fifo \ $(SDK_ROOT)/components/drivers_nrf/nrf_soc_nosd \ $(SDK_ROOT)/components/libraries/atomic \ $(SDK_ROOT)/components/libraries/sortlist \ $(SDK_ROOT)/components/libraries/memobj \ $(SDK_ROOT)/integration/nrfx \ $(SDK_ROOT)/external/utf_converter \ $(SDK_ROOT)/modules/nrfx/drivers/include \ $(SDK_ROOT)/external/fprintf \ $(SDK_ROOT)/components/libraries/log/src \ # Libraries common to all targets LIB_FILES += \ # Optimization flags #OPT = -O3 -g3 # Uncomment the line below to enable link time optimization #OPT += -flto # C flags common to all targets CFLAGS += $(OPT) CFLAGS += -DAPP_TIMER_V2 CFLAGS += -DAPP_TIMER_V2_RTC1_ENABLED CFLAGS += -DBOARD_PCA10056 CFLAGS += -DCONFIG_GPIO_AS_PINRESET CFLAGS += -DFLOAT_ABI_HARD CFLAGS += -DNRF52840_XXAA CFLAGS += -mcpu=cortex-m4 CFLAGS += -mthumb -mabi=aapcs CFLAGS += -Wall -Werror CFLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16 # keep every function in a separate section, this allows linker to discard unused ones CFLAGS += -ffunction-sections -fdata-sections -fno-strict-aliasing CFLAGS += -fno-builtin -fshort-enums # C++ flags common to all targets CXXFLAGS += $(OPT) # Assembler flags common to all targets ASMFLAGS += -g3 ASMFLAGS += -mcpu=cortex-m4 ASMFLAGS += -mthumb -mabi=aapcs ASMFLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16 ASMFLAGS += -DAPP_TIMER_V2 ASMFLAGS += -DAPP_TIMER_V2_RTC1_ENABLED ASMFLAGS += -DBOARD_PCA10056 ASMFLAGS += -DCONFIG_GPIO_AS_PINRESET ASMFLAGS += -DFLOAT_ABI_HARD ASMFLAGS += -DNRF52840_XXAA # Linker flags LDFLAGS += $(OPT) LDFLAGS += -mthumb -mabi=aapcs -L$(SDK_ROOT)/modules/nrfx/mdk -T$(LINKER_SCRIPT) LDFLAGS += -mcpu=cortex-m4 LDFLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16 # let linker dump unused sections LDFLAGS += -Wl,--gc-sections # use newlib in nano version LDFLAGS += --specs=nano.specs nrf52840_xxaa: CFLAGS += -D__HEAP_SIZE=8192 nrf52840_xxaa: CFLAGS += -D__STACK_SIZE=8192 nrf52840_xxaa: ASMFLAGS += -D__HEAP_SIZE=8192 nrf52840_xxaa: ASMFLAGS += -D__STACK_SIZE=8192 # Add standard libraries at the very end of the linker input, after all objects # that may need symbols provided by these libraries. LIB_FILES += -lc -lnosys -lm .PHONY: default help # Default target - first one defined default: nrf52840_xxaa # Print all targets that can be built help: @echo following targets are available: @echo nrf52840_xxaa @echo sdk_config - starting external tool for editing sdk_config.h @echo flash - flashing binary TEMPLATE_PATH := $(SDK_ROOT)/components/toolchain/gcc include $(TEMPLATE_PATH)/Makefile.common $(foreach target, $(TARGETS), $(call define_target, $(target))) .PHONY: flash erase # Flash the program flash: default @echo Flashing: $(OUTPUT_DIRECTORY)/nrf52840_xxaa.hex nrfjprog -f nrf52 --program $(OUTPUT_DIRECTORY)/nrf52840_xxaa.hex --sectorerase nrfjprog -f nrf52 --reset erase: nrfjprog -f nrf52 --eraseall SDK_CONFIG_FILE := ../config/sdk_config.h CMSIS_CONFIG_TOOL := $(SDK_ROOT)/external_tools/cmsisconfig/CMSIS_Configuration_Wizard.jar sdk_config: java -jar $(CMSIS_CONFIG_TOOL) $(SDK_CONFIG_FILE)
Could you share details about the hardware you are using for test? E.g. the label on the nRF52840-DK and the chip markings on the nRF52840 IC?
nRF52840-Preview-DK
on the chip:
PCA10056
V0.9.0
2017.10
683442918
nRF52840-Preview-DK
on the chip:
PCA10056
V0.9.0
2017.10
683442918
I think I have found the problem.
You are using a preview kit of the nRF52840, these contain engineering samples before final silicon, and before the chip went to mass production. These chips have several USB issues. Please order a new nRF52840-DK.
I know this does not directly explain why precompiled works vs. your compiled, however these chips are not recommended for development in any case. So likely they are only marginally working here.
Best regards,
Kenneth
Thank you Kenneth.
Consider it closed.
We will order another board.
