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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 "chip.h"
#include "../board.h"
//--------------------------------------------------------------------+
// USB Interrupt Handler
//--------------------------------------------------------------------+
void USB_IRQHandler(void)
{
#if CFG_TUSB_RHPORT0_MODE & OPT_MODE_HOST
tuh_int_handler(0);
#endif
#if CFG_TUSB_RHPORT0_MODE & OPT_MODE_DEVICE
tud_int_handler(0);
#endif
}
//--------------------------------------------------------------------+
// MACRO TYPEDEF CONSTANT ENUM DECLARATION
//--------------------------------------------------------------------+
#define LED_PORT 2
#define LED_PIN 19
#define BUTTON_PORT 2
#define BUTTON_PIN 10
/* System oscillator rate and RTC oscillator rate */
const uint32_t OscRateIn = 12000000;
const uint32_t RTCOscRateIn = 32768;
/* Pin muxing configuration */
static const PINMUX_GRP_T pinmuxing[] =
{
// LED
{2, 19, (IOCON_FUNC0 | IOCON_MODE_INACT)},
// Button
{2, 10, (IOCON_FUNC0 | IOCON_MODE_INACT | IOCON_MODE_PULLUP)},
};
static const PINMUX_GRP_T pin_usb_mux[] =
{
// USB1 as Host
{0, 29, (IOCON_FUNC1 | IOCON_MODE_INACT)}, // D+1
{0, 30, (IOCON_FUNC1 | IOCON_MODE_INACT)}, // D-1
{1, 18, (IOCON_FUNC1 | IOCON_MODE_INACT)}, // UP LED1
{1, 19, (IOCON_FUNC2 | IOCON_MODE_INACT)}, // PPWR1
// {2, 14, (IOCON_FUNC2 | IOCON_MODE_INACT)}, // VBUS1
// {2, 15, (IOCON_FUNC2 | IOCON_MODE_INACT)}, // OVRCR1
// USB2 as Device
{0, 31, (IOCON_FUNC1 | IOCON_MODE_INACT)}, // D+2
{0, 13, (IOCON_FUNC1 | IOCON_MODE_INACT)}, // UP LED
{0, 14, (IOCON_FUNC3 | IOCON_MODE_INACT)}, // CONNECT2
/* VBUS is not connected on this board, so leave the pin at default setting. */
/*Chip_IOCON_PinMux(LPC_IOCON, 1, 30, IOCON_MODE_INACT, IOCON_FUNC2);*/ /* USB VBUS */
};
// Invoked by startup code
void SystemInit(void)
{
#ifdef __USE_LPCOPEN
extern void (* const g_pfnVectors[])(void);
unsigned int *pSCB_VTOR = (unsigned int *) 0xE000ED08;
*pSCB_VTOR = (unsigned int) g_pfnVectors;
#if __FPU_USED == 1
fpuInit();
#endif
#endif // __USE_LPCOPEN
Chip_IOCON_Init(LPC_IOCON);
Chip_IOCON_SetPinMuxing(LPC_IOCON, pinmuxing, sizeof(pinmuxing) / sizeof(PINMUX_GRP_T));
/* CPU clock source starts with IRC */
/* Enable PBOOST for CPU clock over 100MHz */
Chip_SYSCTL_EnableBoost();
Chip_SetupXtalClocking();
}
void board_init(void)
{
SystemCoreClockUpdate();
#if CFG_TUSB_OS == OPT_OS_NONE
// 1ms tick timer
SysTick_Config(SystemCoreClock / 1000);
#elif CFG_TUSB_OS == OPT_OS_FREERTOS
// If freeRTOS is used, IRQ priority is limit by max syscall ( smaller is higher )
NVIC_SetPriority(USB_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
//------------- USB -------------//
Chip_IOCON_SetPinMuxing(LPC_IOCON, pin_usb_mux, sizeof(pin_usb_mux) / sizeof(PINMUX_GRP_T));
// Port1 as Host, Port2: Device
Chip_USB_Init();
enum {
USBCLK_DEVCIE = 0x12, // AHB + Device
USBCLK_HOST = 0x19 , // AHB + OTG + Host
USBCLK_ALL = 0x1B // Host + Device + OTG + AHB
};
LPC_USB->OTGClkCtrl = USBCLK_ALL;
while ( (LPC_USB->OTGClkSt & USBCLK_ALL) != USBCLK_ALL ) {}
// set portfunc: USB1 = host, USB2 = device
LPC_USB->StCtrl = 0x3;
}
//--------------------------------------------------------------------+
// 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)
{
//return UART_ReceiveByte(BOARD_UART_PORT);
(void) buf; (void) len;
return 0;
}
int board_uart_write(void const * buf, int len)
{
//UART_Send(BOARD_UART_PORT, &c, 1, BLOCKING);
(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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