Hello,
I'm using Zephyr 2.6.1 and nRF5340.
Tried to include in my project the NRFX driver for USB and I'm currently not able to find an enabling option for that.
In the prj.conf seems that is not recognized (available) any entry for that (i.e. following the naming rule CONFIG_NRFX_USBD and looking into Kconfig file in C:\ncs\v2.6.1\zephyr\modules\hal_nordic\nrfx), and obviously the code in the nrfx_usbd.c is not enabled causing errors:
How can I enable the nRFX driver?
Thank you
Hello,
Can't upload a .zip file, so here are the instruction to setup your project in 1minute:
1. Create anew application from sample
2. this is the main.c content, replace the one created in the example
/*
* Copyright (c) 2020 Nordic Semiconductor ASA
*
* SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
*/
#include <zephyr/kernel.h>
#include <zephyr/drivers/gpio.h>
#include <zephyr/init.h>
#include <nrf.h>
#include <nrfx.h>
/*START************************************************** */
/******************************************************** */
#include <stdint.h>
#include <stddef.h>
#include <nrfx_usbd.h>
#include <zephyr/logging/log.h>
LOG_MODULE_REGISTER(USB);
typedef enum {
USB_SUCCESS = 0,
USB_ERROR_INIT_FAILED,
USB_ERROR_WRITE_FAILED,
USB_ERROR_READ_FAILED
} USB_Error_t;
typedef void (*usb_event_handler_t)(nrfx_usbd_evt_t const * p_event);
void USB_Init(usb_event_handler_t event_handler);
void USB_Transfer(uint8_t ep, const void *p_data, size_t size);
#define USB_EP_IN 0x81 // Endpoint IN (da dispositivo a host)
#define USB_EP_OUT 0x01 // Endpoint OUT (da host a dispositivo)
#define DATA_SIZE 64 // Dimensione dei dati da trasferire
static uint8_t tx_data[DATA_SIZE] = "Hello from nRF5340!";
static uint8_t rx_data[DATA_SIZE];
void usb_event_handler2(nrfx_usbd_evt_t const * p_event) {
if (p_event->type == NRFX_USBD_EVT_EPTRANSFER) {
LOG_INF("Data transfer on endpoint %d completed", p_event->data.eptransfer.ep);
}
}
int main(void)
{
LOG_INF("USB CDC example started");
USB_Init(usb_event_handler2);
USB_Transfer(USB_EP_IN, tx_data, sizeof(tx_data));
}
void USB_Init(usb_event_handler_t event_handler) {
nrfx_err_t res = nrfx_usbd_init(event_handler);
if (res != NRFX_SUCCESS) {
LOG_ERR("Failed to initialize USB: %d", res);
}
nrfx_usbd_enable();
nrfx_usbd_start(1);
}
void USB_Transfer(uint8_t ep, const void *p_data, size_t size) {
nrfx_usbd_transfer_t transfer = {
.p_data = p_data,
.size = size
};
nrfx_err_t res = nrfx_usbd_ep_transfer(ep, &transfer);
if (res != NRFX_SUCCESS) {
LOG_ERR("USB transfer failed: %d", res);
}
}
/** @brief Allow access to specific GPIOs for the network core.
*
* Function is executed very early during system initialization to make sure
* that the network core is not started yet. More pins can be added if the
* network core needs them.
*/
static int network_gpio_allow(void)
{
/* When the use of the low frequency crystal oscillator (LFXO) is
* enabled, do not modify the configuration of the pins P0.00 (XL1)
* and P0.01 (XL2), as they need to stay configured with the value
* Peripheral.
*/
uint32_t start_pin = (IS_ENABLED(CONFIG_SOC_ENABLE_LFXO) ? 2 : 0);
/* Allow the network core to use all GPIOs. */
for (uint32_t i = start_pin; i < P0_PIN_NUM; i++) {
NRF_P0_S->PIN_CNF[i] = (GPIO_PIN_CNF_MCUSEL_NetworkMCU <<
GPIO_PIN_CNF_MCUSEL_Pos);
}
for (uint32_t i = 0; i < P1_PIN_NUM; i++) {
NRF_P1_S->PIN_CNF[i] = (GPIO_PIN_CNF_MCUSEL_NetworkMCU <<
GPIO_PIN_CNF_MCUSEL_Pos);
}
return 0;
}
SYS_INIT(network_gpio_allow, PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_OBJECTS);
3. This is the prj.conf, replace the one created by the example
# # Copyright (c) 2020 Nordic Semiconductor ASA # # SPDX-License-Identifier: LicenseRef-Nordic-5-Clause # CONFIG_MULTITHREADING=y CONFIG_KERNEL_MEM_POOL=y CONFIG_NUM_PREEMPT_PRIORITIES=0 CONFIG_SYS_CLOCK_EXISTS=y CONFIG_ARM_MPU=y CONFIG_SIZE_OPTIMIZATIONS=y CONFIG_I2C=n CONFIG_WATCHDOG=n CONFIG_GPIO=n CONFIG_SPI=n CONFIG_SERIAL=n CONFIG_FLASH=n CONFIG_DYNAMIC_INTERRUPTS=n CONFIG_IRQ_OFFLOAD=n CONFIG_THREAD_STACK_INFO=n CONFIG_THREAD_CUSTOM_DATA=n CONFIG_BOOT_BANNER=n CONFIG_BOOT_DELAY=0 CONFIG_CONSOLE=n CONFIG_UART_CONSOLE=n CONFIG_STDOUT_CONSOLE=n CONFIG_PRINTK=n CONFIG_EARLY_CONSOLE=n CONFIG_BOARD_ENABLE_CPUNET=y #enable the NRFX USB CONFIG_USB_DEVICE_DRIVER=y CONFIG_USB_NRFX=y #CONFIG_USB_DEVICE_STACK=y #CONFIG_USB_CDC_ACM=y
4. create a build configuration
then build and get the linker error
