merge cdc-acm support and BLE service

[Sergio Bezz]

I has successfully built the following demos and run them on a nrf52840 dongle (board: nrf52840dongle_nrf52840) :

• cdc-acm-console demo            from Samples and Demos » Various Subsystems Samples » USB device support samples
• bluetooth-st_ble_sensor demo from Samples and Demos » Bluetooth Samples

Based on these demos I am trying to introduce cdc-acm-console support to the bluetooth-st_ble_sensor demo.

Could you please help me to produce the right project configuration (and eventual overlay) to merge both functions (cdc-acm-console and ble GATT services) on a single demo ?

thanks in advance

[Sergio Bezz]

I have included the following within the #includes of the main.c :

#include <usb/usb_device.h>
#include <drivers/uart.h>
BUILD_ASSERT(DT_NODE_HAS_COMPAT(DT_CHOSEN(zephyr_console), zephyr_cdc_acm_uart),
"Console device is not ACM CDC UART device");

and here is the main() including calls to printk :

void main(void)
{
int err, n=0;

err = button_init(button_callback);
if (err) {
     return;
}

err = led_init();
if (err) {
     return;
}

// exemple console (SB)
const struct device *dev = DEVICE_DT_GET(DT_CHOSEN(zephyr_console));
uint32_t dtr = 0;

if (usb_enable(NULL)) {
     return;
}

/* Poll if the DTR flag was set */
while (!dtr) {
     uart_line_ctrl_get(dev, UART_LINE_CTRL_DTR, &dtr);
     /* Give CPU resources to low priority threads. */
     k_sleep(K_MSEC(100));
}

printk("Hello World! %s\n", CONFIG_ARCH);
// fin exemple console (SB)

/* Initialize the Bluetooth Subsystem */
err = bt_enable(bt_ready);
if (err) {
L     OG_ERR("Bluetooth init failed (err %d)", err);
}

/* do not exit but print forever */

while (1) {
     printk("Hello running ! %d\n", n++);
     k_sleep(K_SECONDS(1));
}

}

[Sigurd]

Sergio Bezz said:

but I cannot see any BLE advertising.

I tested with nRF Connect SDK v1.8.0, and it works fine here.

What version are you using? Can you try v1.8.0? (use &zephyr_udc if you are on v1.8.0)