Hi all,
I’m working with PlatformIO to program a nucleo with Mbed 5.
I need to configure the mbed framework, I’m trying to do that with the mbed_app.json file.
To do that I need to obtain the actual configuration of the mbed environment, with mbed CLI program I could do it with the command mbed compile --config
.
How can I obtain the same result with PlatformIO?
Could you show an example what does return mbed compile --config
for your project?
No, I can’t because my project is a platformio based one (I have initialized it with the command pio init
).
This is the problem I cannot run the mbed
command in this directory.
@valeros what is the best way to list mbed OS configuration options?
@NoeMurr a temporary solution is to take a look at Project/.pioenvs/***/mbed_config.h
file and manually override configuration data. For example,
mbed_config.h
#ifndef __MBED_CONFIG_DATA__
#define __MBED_CONFIG_DATA__
// Configuration parameters
#define CLOCK_SOURCE USE_PLL_HSE_XTAL|USE_PLL_HSI // set by target:DISCO_F407VG
#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_EVENTS_PRESENT 1 // set by library:events
#define MBED_CONF_EVENTS_SHARED_DISPATCH_FROM_APPLICATION 0 // set by library:events
#define MBED_CONF_EVENTS_SHARED_EVENTSIZE 256 // set by library:platform
#define MBED_CONF_PLATFORM_DEFAULT_SERIAL_BAUD_RATE 9600 // set by application[*]
...
#endif
So, let’s override MBED_CONF_PLATFORM_DEFAULT_SERIAL_BAUD_RATE
to 115200
. We need to create mbed_app.json
in the root of PlatformIO project:
mbed_app.json
{
"target_overrides": {
"*": {
"platform.default-serial-baud-rate": 115200
}
}
}
The formula is very simple. Just remove MBED_CONF_
prefix, then convert macro to GROUP.some-option-name
.
P.S: Don’t forget about docs Mbed — PlatformIO latest documentation
At the moment, the only way to observe configuration info is to open the mbed_config.h
file.