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/*
* The MIT License (MIT)
*
* Copyright (c) 2019 Ha Thach (tinyusb.org)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* This file is part of the TinyUSB stack.
*/
#include "bsp/board.h"
#include "NUC505Series.h"
//--------------------------------------------------------------------+
// Forward USB interrupt events to TinyUSB IRQ Handler
//--------------------------------------------------------------------+
void USBD_IRQHandler(void)
{
tud_int_handler(0);
}
//--------------------------------------------------------------------+
// MACRO TYPEDEF CONSTANT ENUM
//--------------------------------------------------------------------+
#define LED_PORT PC
#define LED_PIN 3
#define LED_STATE_ON 0
void board_init(void)
{
/* Enable XTAL */
CLK->PWRCTL |= CLK_PWRCTL_HXTEN_Msk;
CLK_SetCoreClock(96000000);
/* Set PCLK divider */
CLK_SetModuleClock(PCLK_MODULE, 0, 1);
/* Update System Core Clock */
SystemCoreClockUpdate();
/* Enable USB IP clock */
CLK_EnableModuleClock(USBD_MODULE);
/* Select USB IP clock source */
CLK_SetModuleClock(USBD_MODULE, CLK_USBD_SRC_EXT, 0);
CLK_SetModuleClock(PCLK_MODULE, 0, 1);
/* Enable PHY */
USBD_ENABLE_PHY();
/* wait PHY clock ready */
while (1) {
USBD->EP[EPA].EPMPS = 0x20;
if (USBD->EP[EPA].EPMPS == 0x20)
break;
}
/* Force SE0, and then clear it to connect*/
USBD_SET_SE0();
#if CFG_TUSB_OS == OPT_OS_NONE
// 1ms tick timer
SysTick_Config(96000000 / 1000);
#endif
GPIO_SetMode(LED_PORT, 1UL << LED_PIN, GPIO_MODE_OUTPUT);
}
#if CFG_TUSB_OS == OPT_OS_NONE
volatile uint32_t system_ticks = 0;
void SysTick_Handler (void)
{
system_ticks++;
}
uint32_t board_millis(void)
{
return system_ticks;
}
#endif
//--------------------------------------------------------------------+
// Board porting API
//--------------------------------------------------------------------+
void board_led_write(bool state)
{
uint32_t current = (state) ? LED_STATE_ON : (1-LED_STATE_ON);
current <<= LED_PIN;
uint32_t irq_state = __get_PRIMASK();
__disable_irq();
current |= LED_PORT->DOUT & ~(1UL << LED_PIN);
LED_PORT->DOUT = current;
__set_PRIMASK(irq_state);
}
uint32_t board_button_read(void)
{
return 0;
}
int board_uart_read(uint8_t* buf, int len)
{
(void) buf; (void) len;
return 0;
}
int board_uart_write(void const * buf, int len)
{
(void) buf; (void) len;
return 0;
}
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