diff options
Diffstat (limited to 'tinyusb/hw/bsp/lpcxpresso1347/lpcxpresso1347.c')
| -rwxr-xr-x | tinyusb/hw/bsp/lpcxpresso1347/lpcxpresso1347.c | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/tinyusb/hw/bsp/lpcxpresso1347/lpcxpresso1347.c b/tinyusb/hw/bsp/lpcxpresso1347/lpcxpresso1347.c new file mode 100755 index 00000000..a9a67ae3 --- /dev/null +++ b/tinyusb/hw/bsp/lpcxpresso1347/lpcxpresso1347.c @@ -0,0 +1,152 @@ +/* + * 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" + +//--------------------------------------------------------------------+ +// Forward USB interrupt events to TinyUSB IRQ Handler +//--------------------------------------------------------------------+ +void USB_IRQHandler(void) +{ + tud_int_handler(0); +} + +//--------------------------------------------------------------------+ +// MACRO TYPEDEF CONSTANT ENUM +//--------------------------------------------------------------------+ +#define LED_PORT 0 +#define LED_PIN 7 + +// Joytick Down if connected to LPCXpresso Base board +#define BUTTON_PORT 1 +#define BUTTON_PIN 20 + +//static const struct { +// uint8_t port; +// uint8_t pin; +//} buttons[] = +//{ +// {1, 22 }, // Joystick up +// {1, 20 }, // Joystick down +// {1, 23 }, // Joystick left +// {1, 21 }, // Joystick right +// {1, 19 }, // Joystick press +// {0, 1 }, // SW3 +//}; + +/* System oscillator rate and RTC oscillator rate */ +const uint32_t OscRateIn = 12000000; +const uint32_t ExtRateIn = 0; + +/* Pin muxing table, only items that need changing from their default pin + state are in this table. */ +static const PINMUX_GRP_T pinmuxing[] = +{ + {0, 1, (IOCON_FUNC1 | IOCON_RESERVED_BIT_7 | IOCON_MODE_INACT)}, /* PIO0_1 used for CLKOUT */ + {0, 2, (IOCON_FUNC1 | IOCON_RESERVED_BIT_7 | IOCON_MODE_PULLUP)}, /* PIO0_2 used for SSEL */ + {0, 3, (IOCON_FUNC1 | IOCON_RESERVED_BIT_7 | IOCON_MODE_INACT)}, /* PIO0_3 used for USB_VBUS */ + {0, 6, (IOCON_FUNC1 | IOCON_RESERVED_BIT_7 | IOCON_MODE_INACT)}, /* PIO0_6 used for USB_CONNECT */ + {0, 8, (IOCON_FUNC1 | IOCON_RESERVED_BIT_7 | IOCON_MODE_INACT)}, /* PIO0_8 used for MISO0 */ + {0, 9, (IOCON_FUNC1 | IOCON_RESERVED_BIT_7 | IOCON_MODE_INACT)}, /* PIO0_9 used for MOSI0 */ + {0, 11, (IOCON_FUNC2 | IOCON_ADMODE_EN | IOCON_FILT_DIS)}, /* PIO0_11 used for AD0 */ + {0, 18, (IOCON_FUNC1 | IOCON_RESERVED_BIT_7 | IOCON_MODE_INACT)}, /* PIO0_18 used for RXD */ + {0, 19, (IOCON_FUNC1 | IOCON_RESERVED_BIT_7 | IOCON_MODE_INACT)}, /* PIO0_19 used for TXD */ + {1, 29, (IOCON_FUNC1 | IOCON_RESERVED_BIT_7 | IOCON_MODE_INACT)}, /* PIO1_29 used for SCK0 */ +}; + +// Invoked by startup code +void SystemInit(void) +{ + /* Enable IOCON clock */ + Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_IOCON); + Chip_IOCON_SetPinMuxing(LPC_IOCON, pinmuxing, sizeof(pinmuxing) / sizeof(PINMUX_GRP_T)); + 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(USB0_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY ); +#endif + + Chip_GPIO_Init(LPC_GPIO_PORT); + + // LED + Chip_GPIO_SetPinDIROutput(LPC_GPIO_PORT, LED_PORT, LED_PIN); + + // Button + Chip_GPIO_SetPinDIRInput(LPC_GPIO_PORT, BUTTON_PORT, BUTTON_PIN); + + // USB: Setup PLL clock, and power + Chip_USB_Init(); +} + +//--------------------------------------------------------------------+ +// Board porting API +//--------------------------------------------------------------------+ + +#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 + +void board_led_write(bool state) +{ + Chip_GPIO_SetPinState(LPC_GPIO_PORT, LED_PORT, LED_PIN, state); +} + +uint32_t board_button_read(void) +{ + // active low + return Chip_GPIO_GetPinState(LPC_GPIO_PORT, 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) +{ + (void) buf; (void) len; + return 0; +} |