Hello Duc,
just one remark.
On 6/27/22 05:34, Duc Doan wrote:
rtems_gpio_ctrl_t *ctrl0 = bsp_gpio_get_ctrl(60); //corresponds to
GPIOD pin 12 on F4
^ if your ctrl structure knows you are working with pin 60
rtems_gpio_write(ctrl, 60, RTEMS_GPIO_PIN_SET);
then you do not need to use it for write.
In fact I guess ctrl structure would contain some BSP specific data and
since bsp_gpio_get_ctrl is BSP specific function for f4 that means in
ctrl you will save your GPIOx and pin number -- e.g. hardware specific
pin representation.
This means on write/read you do not need to map virtual pin -> physical
pin again, but in fact use physical pin from ctrl and be as fast as
possible.
Christian described everything else already so no need to add anything here.
I'm glad you are making this steady progress on this project.
Thanks,
Karel
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