Hi.
Could you please tell me how to trigger an interrupt when changing the USBREGSTATUS register?
I can monitor the state of this register in polling mode, but I don't know how to trigger an interrupt when it changes. Could you please provide a code example how to do it rationally with minimal memory usage of the microcontroller?
Thanks.
Hi Hakon. Thank you for your response with an example.
But I am not yet able to implement this function in my application. I'm getting errors that I can't fix.
Here's my code -->
#include <stdio.h>
#include <zephyr/kernel.h>
#include <zephyr/drivers/gpio.h>
#include <zephyr/usb/usb_device.h>
#include <zephyr/logging/log.h>
LOG_MODULE_REGISTER(v52820, LOG_LEVEL_DBG);
static void usbd_status(enum usb_dc_status_code cb_status, const uint8_t *param)
{
switch (cb_status) {
case USB_DC_CONNECTED:
LOG_DBG("USB_DC_CONNECTED");
break;
case USB_DC_DISCONNECTED:
LOG_DBG("USB_DC_DISCONNECTED");
break;
default:
break;
}
}
int main(void)
{
int err;
err = usb_enable(usbd_status);
if (err) {
LOG_ERR("usb_enable: %d", err);
return false;
}
while (1){
k_msleep(1000);
}
return 0;
}
prj.conf file -->
CONFIG_GPIO=y CONFIG_LOG=y CONFIG_USB_DEVICE_STACK=y
Here are the errors I see while building the project -->
...
Can you please tell me where I'm making a mistake?
Does the prj.conf file need to include anything else besides CONFIG_USB_DEVICE_STACK?
Thanks.
Hi.
I am using a custom board based on the nRF52820.
SDK v.2.7.0
Toolchain v.2.7.0
When building the HID project, I also see errors -->
