160 lines
5.1 KiB
C
160 lines
5.1 KiB
C
/**************************************************************************/
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/*!
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@file board_lpcxpresso1769.c
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@author hathach (tinyusb.org)
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@section LICENSE
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Software License Agreement (BSD License)
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Copyright (c) 2013, hathach (tinyusb.org)
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. Neither the name of the copyright holders nor the
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
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EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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This file is part of the tinyusb stack.
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*/
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/**************************************************************************/
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#include "../board.h"
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#if BOARD == BOARD_LPCXPRESSO1769
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#define BOARD_LED_PORT (0)
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#define BOARD_LED_PIN (22)
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const static struct {
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uint8_t port;
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uint8_t pin;
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} buttons[] =
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{
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{2, 3 }, // Joystick up
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{0, 15 }, // Joystick down
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{2, 4 }, // Joystick left
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{0, 16 }, // Joystick right
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{0, 17 }, // Joystick press
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{0, 4 }, // SW3
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// {1, 31 }, // SW4 (require to remove J28)
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};
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enum {
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BOARD_BUTTON_COUNT = sizeof(buttons) / sizeof(buttons[0])
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};
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#define BOARD_UART_PORT LPC_UART3
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void board_init(void)
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{
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SystemInit();
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#if TUSB_CFG_OS == TUSB_OS_NONE // TODO may move to main.c
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SysTick_Config(SystemCoreClock / TUSB_CFG_TICKS_HZ); // 1 msec tick timer
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#endif
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//------------- LED -------------//
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GPIO_SetDir(BOARD_LED_PORT, BIT_(BOARD_LED_PIN), 1);
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//------------- BUTTON -------------//
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for(uint8_t i=0; i<BOARD_BUTTON_COUNT; i++) GPIO_SetDir(buttons[i].port, BIT_(buttons[i].pin), 0);
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#if MODE_DEVICE_SUPPORTED
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//------------- USB Device -------------//
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// VBUS sense is wrongly connected to P0_5 (instead of P1_30). So we need to always pull P1_30 to high
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// so that USB device block can work. However, Device Controller (thus tinyusb) cannot able to determine
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// if device is disconnected or not
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PINSEL_ConfigPin( &(PINSEL_CFG_Type) {
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.Portnum = 1, .Pinnum = 30,
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.Funcnum = 2, .Pinmode = PINSEL_PINMODE_PULLUP} );
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//P0_21 instead of P2_9 as USB connect
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#endif
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//------------- UART -------------//
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PINSEL_CFG_Type PinCfg =
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{
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.Portnum = 0,
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.Pinnum = 0, // TXD is P0.0
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.Funcnum = 2,
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.OpenDrain = 0,
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.Pinmode = 0
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};
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PINSEL_ConfigPin(&PinCfg);
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PinCfg.Portnum = 0;
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PinCfg.Pinnum = 1; // RXD is P0.1
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PINSEL_ConfigPin(&PinCfg);
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UART_CFG_Type UARTConfigStruct;
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UART_ConfigStructInit(&UARTConfigStruct);
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UARTConfigStruct.Baud_rate = CFG_UART_BAUDRATE;
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UART_Init(BOARD_UART_PORT, &UARTConfigStruct);
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UART_TxCmd(BOARD_UART_PORT, ENABLE); // Enable UART Transmit
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}
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//--------------------------------------------------------------------+
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// LEDS
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//--------------------------------------------------------------------+
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void board_leds(uint32_t on_mask, uint32_t off_mask)
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{
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if (on_mask & BIT_(0))
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{
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GPIO_SetValue(BOARD_LED_PORT, BIT_(BOARD_LED_PIN));
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}else if (off_mask & BIT_(0))
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{
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GPIO_ClearValue(BOARD_LED_PORT, BIT_(BOARD_LED_PIN));
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}
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}
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//--------------------------------------------------------------------+
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// BUTTONS
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//--------------------------------------------------------------------+
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static bool button_read(uint8_t id)
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{
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return !BIT_TEST_( GPIO_ReadValue(buttons[id].port), buttons[id].pin ); // button is active low
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}
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uint32_t board_buttons(void)
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{
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uint32_t result = 0;
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for(uint8_t i=0; i<BOARD_BUTTON_COUNT; i++) result |= (button_read(i) ? BIT_(i) : 0);
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return result;
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}
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//--------------------------------------------------------------------+
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// UART
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//--------------------------------------------------------------------+
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void board_uart_putchar(uint8_t c)
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{
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UART_Send(BOARD_UART_PORT, &c, 1, BLOCKING);
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}
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uint8_t board_uart_getchar(void)
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{
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return UART_ReceiveByte(BOARD_UART_PORT);
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}
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#endif
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