Re: How to create a custom board project?
Posted: Thu Nov 03, 2016 9:35 pm
How to define EXTI pin in board.chcfg file?
Ciao,
Usually it is an input with or without pull resistor.
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How to create a custom board project?
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Re: How to create a custom board project?
Posted: Thu Nov 03, 2016 9:42 pm
Re: How to create a custom board project?
Posted: Thu Nov 03, 2016 9:52 pm
I.e. need define as input and assign it to EXTI in code, correct?
I'm trying manually translate all my settings I did in CubeMX reference project, and in that program you define that pin as external interrupt, not as input. Obviously it becomes an input, but not defined so when CubeMX generates the code.
I'm trying manually translate all my settings I did in CubeMX reference project, and in that program you define that pin as external interrupt, not as input. Obviously it becomes an input, but not defined so when CubeMX generates the code.
Re: How to create a custom board project?
Posted: Thu Nov 03, 2016 10:01 pm
EXTI driver is able to detect a logic level transition on a certain pin. Set a pin as input then start EXTI with a proper configuration.
In the configuration you have to choose the mode for each exti line and a callback which will be launched on the transition.
As example STM32F3
This configuration detects both high to low and low to high transition on EXTI line 0. Note that on exti line 0 there are PA0, PB0, PC0 connected through a multiplexer.
This configuration chooses PA0. Autostarted means that after extStart the driver is already "listening". extcb1 is the pointer to the function which is launched when an edge is detected.
You can found bunches of demos like this under testhal.
By the way, I heard that Giovanni has integrated ext in pal. I am currently out of date about this. Anyway, EXT APIs are still supported.
Ciao.
In the configuration you have to choose the mode for each exti line and a callback which will be launched on the transition.
As example STM32F3
Code: Select all
static const EXTConfig extcfg = {
{
{EXT_CH_MODE_BOTH_EDGES | EXT_CH_MODE_AUTOSTART | EXT_MODE_GPIOA, extcb1},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL}
}
};This configuration detects both high to low and low to high transition on EXTI line 0. Note that on exti line 0 there are PA0, PB0, PC0 connected through a multiplexer.
This configuration chooses PA0. Autostarted means that after extStart the driver is already "listening". extcb1 is the pointer to the function which is launched when an edge is detected.
You can found bunches of demos like this under testhal.
By the way, I heard that Giovanni has integrated ext in pal. I am currently out of date about this. Anyway, EXT APIs are still supported.
Ciao.
Re: How to create a custom board project?
Posted: Thu Nov 03, 2016 10:09 pm
Note that on exti line 0 there are PA0, PB0, PC0 connected through a multiplexer.
Yes, I know that
I'm going to use PD2 for EXTI2.
I heard that Giovanni has integrated ext in pal
Hmm, that would be interesting.
Thanks
Re: How to create a custom board project?
Posted: Wed Nov 16, 2016 3:50 am
Project compilation after creating the custom board gives errors
With Nucleo board I had no such problem.
What could it be? Which way to dig?
Code: Select all
Description Resource Path Location Type
Field 'p_newer' could not be resolved chsys.c /FW-0134_CHM3/os/os/rt/src line 276 Semantic Error
Field 'p_next' could not be resolved chsys.c /FW-0134_CHM3/os/os/rt/src line 223 Semantic Error
Field 'p_next' could not be resolved chsys.c /FW-0134_CHM3/os/os/rt/src line 226 Semantic Error
Field 'p_older' could not be resolved chsys.c /FW-0134_CHM3/os/os/rt/src line 283 Semantic Error
Field 'p_prev' could not be resolved chsys.c /FW-0134_CHM3/os/os/rt/src line 230 Semantic Error
Field 'p_prev' could not be resolved chsys.c /FW-0134_CHM3/os/os/rt/src line 233 Semantic Error
Field 'p_state' could not be resolved chsys.c /FW-0134_CHM3/os/os/rt/src line 125 Semantic ErrorWith Nucleo board I had no such problem.
What could it be? Which way to dig?
Re: How to create a custom board project?
Posted: Wed Nov 16, 2016 9:58 am
Probably you are mixing RT3 and RT4 stuff, in RT4 field names lost the p_ prefix.
Giovanni
Giovanni
Re: How to create a custom board project?
Posted: Wed Nov 16, 2016 2:15 pm
I don't know what is RT3 anŠ² RT4 
How to check it?
I just transfered my project from Nucleo to custom board keeping all environment as same as possible. Different pinout and set of interfaces, of course.
Eith Nucleo board RT + shell worked ok and I decided to transfer it to the custom board at this step, before adding all the other stuff.
How to check it?I just transfered my project from Nucleo to custom board keeping all environment as same as possible. Different pinout and set of interfaces, of course.
Eith Nucleo board RT + shell worked ok and I decided to transfer it to the custom board at this step, before adding all the other stuff.
Re: How to create a custom board project?
Posted: Wed Nov 16, 2016 5:04 pm
ChibiOS/RT 3.x and ChibiOS/RT 4.x.
3.x is in the stable 16.1.x version, RT4 is the version in trunk.
Giovanni
3.x is in the stable 16.1.x version, RT4 is the version in trunk.
Giovanni
Re: How to create a custom board project?
Posted: Wed Nov 16, 2016 7:00 pm
I did not download RT4.
I'm using the same set of files for chibios 1.61 located at the same place under Chiibistudio. I even had to create directory in the same place as all the other boards located (usually I try to not change "parent" set of files and directories), otherwise it lost some paths
I'm using the same set of files for chibios 1.61 located at the same place under Chiibistudio. I even had to create directory in the same place as all the other boards located (usually I try to not change "parent" set of files and directories), otherwise it lost some paths