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5 years, 1 month ago.
Configure a Project in a Newer mbed-dev (f392fc9709a3) and Compiling with GCC in Eclipse 2019-03
Hi there,
I recently took a project three-years-vintage and attempted to make it compile on a new system with a fairly recent installation of Eclipse CDT with the GNU MCU Eclipse 4.6.1. I had a significant struggle doing this, so I exported the STM32F429ZI LCD/TS project from mbed online - to Eclipse and eventually succeeded with a build and with OpenOCD.
Now I have to migrate my existing code into this project and I simultaneously wanted to migrate to the latest mbed-dev.
I stripped all mbed and cmsis folders and sources/headers from the existing LCD/TS project and I took all files matching the following blobs in mbed-dev project checked out at f392fc9709a3. I also added these as include paths to the toolchain obviously.
list of mbed-dev files/folders
./*.h
./cmsis/*.h
./cmsis/TARGET_CORTEX_M/*.h
./cmsis/TARGET_CORTEX_M/TOOLCHAIN_GCC/*.S
./drivers/*.{h,cpp}
./hal/*.{h,c,cpp}
./hal/mpu/*.c
./hal/storage_abstraction/*.h
./hal/TARGET_FLASH_CMSIS_ALGO/*.{h,c}
./platform/*.{h,c,cpp}
./targets/TARGET_STM/*.{h,c}
./targets/TARGET_STM/TARGET_STM32F4/*.{h,c}
./targets/TARGET_STM/TARGET_STM32F4/device/*.{h,c}
./targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F429xI/*.h
./targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F429xI/device/*.{h,c}
./targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F429xI/device/TOOLCHAIN_GCC_ARM/*.{S,ld}
./targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F429xI/TARGET_DISCO_F429ZI/*.{h,c}
Now this compilation originally tripped up at some missing defines which I assume the mbed compiler provides as command-line-arguments (in the same way you supply preprocessor symbols with -D in GCC, to the translator).
I struggled to identify anything that identified how exactly you configure the code-base besides the otherwise-magic project symbols that the online mbed exporter can yield to an Eclipse project. Worth noting is that the LCD/TS project contained a large number of these symbols and I left them in the Eclipse project.
I stumbled across the mbed-os 5.1.4 reference and found a section on configuring it, and consequently added every single macro that the reference has a default value for. Except for MBED_CONF_RTOS_PRESENT which was removed (as I do not have a need for the os, just the HAL).
Now the compilation trips up because it is missing MBED_CONF_PLATFORM_ERROR_DECODE_HTTP_URL_STR which is a char pointer like a printf-format-string inside mbed_error.c's unit. Of course I could provide one, but I'd rather find out where it comes from. Googling the symbol returns an eclectic set of snippets from the exact same implementation in f392fc9709a3.
$ find . -type f \( -not -name \*.o \) -exec grep -Pn 'MBED_CONF_PLATFORM_ERROR_DECODE_HTTP_URL_STR' {} /dev/null --color=always \;
./f392fc9709a3/platform/mbed_error.c:542: mbed_error_printf(MBED_CONF_PLATFORM_ERROR_DECODE_HTTP_URL_STR, ctx->error_status);
So how should I go about configuring this project correctly?
1 Answer
5 years, 1 month ago.
Hello Matthew,
One option is to let mbed-cli generate the configuration file for your Eclipse project:
- Create a simple "Blinky" Mbed OS-2 project for your target using mbed-cli. Add a
mbed_app.jsonfile if needed and compile. - Copy & paste the
mbed_config.hfile generated by mbed-cli in the "Blinky" project to your Eclipse project.
Below is the mbed_config.h file generated by mbed-cli for the DISCO_F429ZI target when no mbed_app.json was used:
mbed_config.h
/* * mbed SDK * Copyright (c) 2017 ARM Limited * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ // Automatically generated configuration file. // DO NOT EDIT, content will be overwritten. #ifndef __MBED_CONFIG_DATA__ #define __MBED_CONFIG_DATA__ // Configuration parameters #define CLOCK_SOURCE USE_PLL_HSE_XTAL|USE_PLL_HSI // set by target:DISCO_F429ZI #define CLOCK_SOURCE_USB 1 // set by target:DISCO_F429ZI #define LPTICKER_DELAY_TICKS 1 // set by target:FAMILY_STM32 #define MBED_CONF_DRIVERS_UART_SERIAL_RXBUF_SIZE 256 // set by library:drivers #define MBED_CONF_DRIVERS_UART_SERIAL_TXBUF_SIZE 256 // set by library:drivers #define MBED_CONF_PLATFORM_CRASH_CAPTURE_ENABLED 0 // set by library:platform #define MBED_CONF_PLATFORM_CTHUNK_COUNT_MAX 8 // set by library:platform #define MBED_CONF_PLATFORM_DEFAULT_SERIAL_BAUD_RATE 9600 // set by library:platform #define MBED_CONF_PLATFORM_ERROR_ALL_THREADS_INFO 0 // set by library:platform #define MBED_CONF_PLATFORM_ERROR_DECODE_HTTP_URL_STR "\nFor more info, visit: https://armmbed.github.io/mbedos-error/?error=0x%08X" // set by library:platform #define MBED_CONF_PLATFORM_ERROR_FILENAME_CAPTURE_ENABLED 0 // set by library:platform #define MBED_CONF_PLATFORM_ERROR_HIST_ENABLED 0 // set by library:platform #define MBED_CONF_PLATFORM_ERROR_HIST_SIZE 4 // set by library:platform #define MBED_CONF_PLATFORM_ERROR_REBOOT_MAX 1 // set by library:platform #define MBED_CONF_PLATFORM_FATAL_ERROR_AUTO_REBOOT_ENABLED 0 // set by library:platform #define MBED_CONF_PLATFORM_FORCE_NON_COPYABLE_ERROR 0 // set by library:platform #define MBED_CONF_PLATFORM_MAX_ERROR_FILENAME_LEN 16 // set by library:platform #define MBED_CONF_PLATFORM_POLL_USE_LOWPOWER_TIMER 0 // set by library:platform #define MBED_CONF_PLATFORM_STDIO_BAUD_RATE 9600 // set by library:platform #define MBED_CONF_PLATFORM_STDIO_BUFFERED_SERIAL 0 // set by library:platform #define MBED_CONF_PLATFORM_STDIO_CONVERT_NEWLINES 0 // set by library:platform #define MBED_CONF_PLATFORM_STDIO_CONVERT_TTY_NEWLINES 0 // set by library:platform #define MBED_CONF_PLATFORM_STDIO_FLUSH_AT_EXIT 1 // set by library:platform #define MBED_CONF_PLATFORM_USE_MPU 1 // set by library:platform #define MBED_CONF_TARGET_BOOT_STACK_SIZE 0x1000 // set by target:Target #define MBED_CONF_TARGET_DEEP_SLEEP_LATENCY 3 // set by target:FAMILY_STM32 #define MBED_CONF_TARGET_LPTICKER_LPTIM_CLOCK 1 // set by target:FAMILY_STM32 #define MBED_CONF_TARGET_LPUART_CLOCK_SOURCE USE_LPUART_CLK_LSE|USE_LPUART_CLK_PCLK1 // set by target:FAMILY_STM32 #define MBED_CONF_TARGET_LSE_AVAILABLE 0 // set by target:DISCO_F429ZI #define MBED_CONF_TARGET_MPU_ROM_END 0x0fffffff // set by target:Target #endif
Thank you for attaching that! I'll investigate if that solves it. The mbed-os configuration reference refers specifically to versions of the rtos and not the mbed library that it implements. For this reason, it's a little ambiguous how to implement a library by itself. I couldn't find documentation regarding this.
posted by 17 Oct 2019