MCUXpresso_LPC55S69/boards/lpcxpresso55s69/demo_apps/hello_world_virtual_com/cm33_core0/hello_world.c

95 lines
2.9 KiB
C

/*
* Copyright (c) 2013 - 2015, Freescale Semiconductor, Inc.
* Copyright 2016-2017 NXP
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include "fsl_device_registers.h"
#include "fsl_debug_console.h"
#include "pin_mux.h"
#include "board.h"
#include "usb.h"
#include "usb_device.h"
#include "usb_device_config.h"
#include <stdbool.h>
#include "fsl_power.h"
#include "fsl_component_serial_port_usb.h"
/*******************************************************************************
* Definitions
******************************************************************************/
/*******************************************************************************
* Prototypes
******************************************************************************/
void USB_DeviceClockInit(void);
/*******************************************************************************
* Code
******************************************************************************/
void USB_DeviceClockInit(void)
{
#if defined(USB_DEVICE_CONFIG_LPCIP3511FS) && (USB_DEVICE_CONFIG_LPCIP3511FS > 0U)
/* enable USB IP clock */
CLOCK_EnableUsbfs0DeviceClock(kCLOCK_UsbfsSrcFro, CLOCK_GetFroHfFreq());
#if (((defined(USB_DEVICE_CONFIG_LPCIP3511FS)) && (USB_DEVICE_CONFIG_LPCIP3511FS > 0U)) || \
((defined(USB_DEVICE_CONFIG_LPCIP3511HS)) && (USB_DEVICE_CONFIG_LPCIP3511HS > 0U)))
#if defined(FSL_FEATURE_USBHSD_USB_RAM) && (FSL_FEATURE_USBHSD_USB_RAM)
for (int i = 0; i < FSL_FEATURE_USBHSD_USB_RAM; i++)
{
((uint8_t *)FSL_FEATURE_USBHSD_USB_RAM_BASE_ADDRESS)[i] = 0x00U;
}
#endif
#endif
#endif
}
/*!
* @brief Main function
*/
int main(void)
{
char ch;
/* Init board hardware. */
/* set BOD VBAT level to 1.65V */
POWER_SetBodVbatLevel(kPOWER_BodVbatLevel1650mv, kPOWER_BodHystLevel50mv, false);
/* attach 12 MHz clock to FLEXCOMM0 (debug console) */
CLOCK_AttachClk(BOARD_DEBUG_UART_CLK_ATTACH);
BOARD_InitBootPins();
BOARD_InitBootClocks();
BOARD_InitDebugConsole();
#if !defined(DONT_ENABLE_FLASH_PREFETCH)
/* enable flash prefetch for better performance */
SYSCON->FMCCR |= SYSCON_FMCCR_PREFEN_MASK;
#endif
POWER_DisablePD(kPDRUNCFG_PD_USB0_PHY); /*< Turn on USB Phy */
CLOCK_SetClkDiv(kCLOCK_DivUsb0Clk, 1, false);
CLOCK_AttachClk(kFRO_HF_to_USB0_CLK);
/* enable usb0 host clock */
CLOCK_EnableClock(kCLOCK_Usbhsl0);
/*According to reference mannual, device mode setting has to be set by access usb host register */
*((uint32_t *)(USBFSH_BASE + 0x5C)) |= USBFSH_PORTMODE_DEV_ENABLE_MASK;
/* disable usb0 host clock */
CLOCK_DisableClock(kCLOCK_Usbhsl0);
/* Initialize the debug console as CDC virtual com. */
USB_DeviceClockInit();
DbgConsole_Init((uint8_t)kSerialManager_UsbControllerLpcIp3511Fs0, (uint32_t)NULL, kSerialPort_UsbCdc,
(uint32_t)NULL);
PRINTF("hello world.\r\n");
while (1)
{
ch = GETCHAR();
PUTCHAR(ch);
}
}