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/*
* The MIT License (MIT)
*
* Copyright (c) 2020 Jerzy Kasenberg
*
* 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 <hal/hal_gpio.h>
#include <mcu/mcu.h>
//--------------------------------------------------------------------+
// Forward USB interrupt events to TinyUSB IRQ Handler
//--------------------------------------------------------------------+
void USB_IRQHandler(void)
{
tud_int_handler(0);
}
//--------------------------------------------------------------------+
// MACRO TYPEDEF CONSTANT ENUM
//--------------------------------------------------------------------+
#define LED_PIN 33 // P1.1
#define LED_STATE_ON 1
#define LED_STATE_OFF (1-LED_STATE_ON)
#define BUTTON_PIN 6
void UnhandledIRQ(void)
{
CRG_TOP->SYS_CTRL_REG = 0x80;
__BKPT(1);
while(1);
}
void board_init(void)
{
// LED
hal_gpio_init_out(LED_PIN, LED_STATE_ON);
hal_gpio_init_out(1, 0);
hal_gpio_init_out(2, 0);
hal_gpio_init_out(3, 0);
hal_gpio_init_out(4, 0);
hal_gpio_init_out(5, 0);
// Button
hal_gpio_init_in(BUTTON_PIN, HAL_GPIO_PULL_NONE);
// 1ms tick timer
SysTick_Config(SystemCoreClock / 1000);
NVIC_SetPriority(USB_IRQn, 2);
/* Setup USB IRQ */
NVIC_SetPriority(USB_IRQn, 2);
NVIC_EnableIRQ(USB_IRQn);
/* Use PLL96 / 2 clock not HCLK */
CRG_TOP->CLK_CTRL_REG &= ~CRG_TOP_CLK_CTRL_REG_USB_CLK_SRC_Msk;
mcu_gpio_set_pin_function(14, MCU_GPIO_MODE_INPUT, MCU_GPIO_FUNC_USB);
mcu_gpio_set_pin_function(15, MCU_GPIO_MODE_INPUT, MCU_GPIO_FUNC_USB);
}
//--------------------------------------------------------------------+
// Board porting API
//--------------------------------------------------------------------+
void board_led_write(bool state)
{
hal_gpio_write(LED_PIN, state ? LED_STATE_ON : LED_STATE_OFF);
}
uint32_t board_button_read(void)
{
// button is active LOW
return hal_gpio_read(BUTTON_PIN) ^ 1;
}
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;
}
#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
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