158 lines
4.4 KiB
C
158 lines
4.4 KiB
C
/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2019 Ha Thach (tinyusb.org)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* This file is part of the TinyUSB stack.
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*/
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#include "chip.h"
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#include "bsp/board_api.h"
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#include "board.h"
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//--------------------------------------------------------------------+
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// USB Interrupt Handler
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//--------------------------------------------------------------------+
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void USB_IRQHandler(void) {
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#if CFG_TUD_ENABLED
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tud_int_handler(0);
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#endif
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#if CFG_TUH_ENABLED
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tuh_int_handler(0, true);
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#endif
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}
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//--------------------------------------------------------------------+
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// MACRO TYPEDEF CONSTANT ENUM DECLARATION
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//--------------------------------------------------------------------+
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// Invoked by startup code
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void SystemInit(void) {
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#ifdef __USE_LPCOPEN
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extern void (*const g_pfnVectors[])(void);
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unsigned int *pSCB_VTOR = (unsigned int *) 0xE000ED08;
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*pSCB_VTOR = (unsigned int) g_pfnVectors;
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#if __FPU_USED == 1
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fpuInit();
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#endif
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#endif // __USE_LPCOPEN
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Chip_IOCON_Init(LPC_IOCON);
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Chip_IOCON_SetPinMuxing(LPC_IOCON, pinmuxing, sizeof(pinmuxing) / sizeof(PINMUX_GRP_T));
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#ifdef TRACE_ETM
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const PINMUX_GRP_T trace_pinmux[] = {
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{2, 2, IOCON_FUNC5 | IOCON_FASTSLEW_EN },
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{2, 3, IOCON_FUNC5 | IOCON_FASTSLEW_EN },
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{2, 4, IOCON_FUNC5 | IOCON_FASTSLEW_EN },
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{2, 5, IOCON_FUNC5 | IOCON_FASTSLEW_EN },
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{2, 6, IOCON_FUNC5 | IOCON_FASTSLEW_EN },
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};
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Chip_IOCON_SetPinMuxing(LPC_IOCON, trace_pinmux, sizeof(trace_pinmux) / sizeof(PINMUX_GRP_T));
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#endif
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/* CPU clock source starts with IRC */
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/* Enable PBOOST for CPU clock over 100MHz */
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Chip_SYSCTL_EnableBoost();
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Chip_SetupXtalClocking();
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}
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void board_init(void) {
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SystemCoreClockUpdate();
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#if CFG_TUSB_OS == OPT_OS_NONE
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// 1ms tick timer
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SysTick_Config(SystemCoreClock / 1000);
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#elif CFG_TUSB_OS == OPT_OS_FREERTOS
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// If freeRTOS is used, IRQ priority is limit by max syscall ( smaller is higher )
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NVIC_SetPriority(USB_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY);
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#endif
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Chip_GPIO_Init(LPC_GPIO);
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// LED
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Chip_GPIO_SetPinDIROutput(LPC_GPIO, LED_PORT, LED_PIN);
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// Button
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Chip_GPIO_SetPinDIRInput(LPC_GPIO, BUTTON_PORT, BUTTON_PIN);
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// UART
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//------------- USB -------------//
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// Port1 as Host, Port2: Device
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Chip_USB_Init();
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enum {
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USBCLK_DEVCIE = 0x12, // AHB + Device
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USBCLK_HOST = 0x19, // AHB + OTG + Host
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USBCLK_ALL = 0x1B // Host + Device + OTG + AHB
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};
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LPC_USB->OTGClkCtrl = USBCLK_ALL;
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while ( (LPC_USB->OTGClkSt & USBCLK_ALL) != USBCLK_ALL ) {}
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// set portfunc: USB1 = host, USB2 = device
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LPC_USB->StCtrl = 0x3;
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}
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//--------------------------------------------------------------------+
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// Board porting API
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//--------------------------------------------------------------------+
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void board_led_write(bool state) {
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Chip_GPIO_SetPinState(LPC_GPIO, LED_PORT, LED_PIN, state);
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}
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uint32_t board_button_read(void) {
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return BUTTON_ACTIV_STATE == Chip_GPIO_GetPinState(LPC_GPIO, BUTTON_PORT, BUTTON_PIN);
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}
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int board_uart_read(uint8_t *buf, int len) {
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//return UART_ReceiveByte(BOARD_UART_PORT);
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(void) buf;
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(void) len;
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return 0;
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}
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int board_uart_write(void const *buf, int len) {
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//UART_Send(BOARD_UART_PORT, &c, 1, BLOCKING);
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(void) buf;
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(void) len;
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return 0;
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}
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#if CFG_TUSB_OS == OPT_OS_NONE
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volatile uint32_t system_ticks = 0;
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void SysTick_Handler(void) {
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system_ticks++;
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}
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uint32_t board_millis(void) {
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return system_ticks;
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}
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#endif
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