131 lines
3.8 KiB
C
131 lines
3.8 KiB
C
|
/*
|
||
|
|
* 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 "chip.h"
|
||
|
|
#include "bsp/board.h"
|
||
|
|
#include "board.h"
|
||
|
|
|
||
|
|
//--------------------------------------------------------------------+
|
||
|
|
// Forward USB interrupt events to TinyUSB IRQ Handler
|
||
|
|
//--------------------------------------------------------------------+
|
||
|
|
void USB_IRQHandler(void)
|
||
|
|
{
|
||
|
|
tud_int_handler(0);
|
||
|
|
}
|
||
|
|
|
||
|
|
//--------------------------------------------------------------------+
|
||
|
|
// MACRO TYPEDEF CONSTANT ENUM
|
||
|
|
//--------------------------------------------------------------------+
|
||
|
|
|
||
|
|
/* System oscillator rate and RTC oscillator rate */
|
||
|
|
const uint32_t OscRateIn = XTAL_OscRateIn;
|
||
|
|
const uint32_t RTCOscRateIn = XTAL_RTCOscRateIn;
|
||
|
|
|
||
|
|
// Invoked by startup code
|
||
|
|
void SystemInit(void)
|
||
|
|
{
|
||
|
|
Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_SRAM1);
|
||
|
|
Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_SRAM2);
|
||
|
|
Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_IOCON);
|
||
|
|
Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_SWM);
|
||
|
|
Chip_SYSCTL_PeriphReset(RESET_IOCON);
|
||
|
|
|
||
|
|
board_lpc15_pinmux_swm_init();
|
||
|
|
|
||
|
|
Chip_SetupXtalClocking();
|
||
|
|
}
|
||
|
|
|
||
|
|
void board_init(void)
|
||
|
|
{
|
||
|
|
SystemCoreClockUpdate();
|
||
|
|
|
||
|
|
// 1ms tick timer
|
||
|
|
SysTick_Config(SystemCoreClock / 1000);
|
||
|
|
|
||
|
|
#if CFG_TUSB_OS == OPT_OS_FREERTOS
|
||
|
|
// If freeRTOS is used, IRQ priority is limit by max syscall ( smaller is higher )
|
||
|
|
NVIC_SetPriority(USB0_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY );
|
||
|
|
#endif
|
||
|
|
|
||
|
|
Chip_GPIO_Init(LPC_GPIO);
|
||
|
|
|
||
|
|
// LED
|
||
|
|
Chip_GPIO_SetPinDIROutput(LPC_GPIO, LED_PORT, LED_PIN);
|
||
|
|
|
||
|
|
// Button
|
||
|
|
Chip_GPIO_SetPinDIRInput(LPC_GPIO, BUTTON_PORT, BUTTON_PIN);
|
||
|
|
|
||
|
|
// UART
|
||
|
|
Chip_Clock_SetUARTBaseClockRate(Chip_Clock_GetMainClockRate(), false);
|
||
|
|
Chip_UART_Init(UART_PORT);
|
||
|
|
Chip_UART_ConfigData(UART_PORT, UART_CFG_DATALEN_8 | UART_CFG_PARITY_NONE | UART_CFG_STOPLEN_1);
|
||
|
|
Chip_UART_SetBaud(UART_PORT, CFG_BOARD_UART_BAUDRATE);
|
||
|
|
Chip_UART_Enable(UART_PORT);
|
||
|
|
Chip_UART_TXEnable(UART_PORT);
|
||
|
|
|
||
|
|
// USB: Setup PLL clock, and power
|
||
|
|
Chip_USB_Init();
|
||
|
|
}
|
||
|
|
|
||
|
|
//--------------------------------------------------------------------+
|
||
|
|
// Board porting API
|
||
|
|
//--------------------------------------------------------------------+
|
||
|
|
|
||
|
|
void board_led_write(bool state)
|
||
|
|
{
|
||
|
|
Chip_GPIO_SetPinState(LPC_GPIO, LED_PORT, LED_PIN, state);
|
||
|
|
}
|
||
|
|
|
||
|
|
uint32_t board_button_read(void)
|
||
|
|
{
|
||
|
|
// active low
|
||
|
|
return Chip_GPIO_GetPinState(LPC_GPIO, BUTTON_PORT, BUTTON_PIN) ? 0 : 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)
|
||
|
|
{
|
||
|
|
return Chip_UART_SendBlocking(UART_PORT, buf, len);
|
||
|
|
}
|
||
|
|
|
||
|
|
#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
|