134 lines
4.9 KiB
C
134 lines
4.9 KiB
C
/**************************************************************************/
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/*!
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@file board_lpc4357usb.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_LPC4357USB
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#define BOARD_UART_PORT (LPC_USART0)
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#define BOARD_UART_PIN_PORT (0x0F)
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#define BOARD_UART_PIN_TX (10) // PF.10 : UART0_TXD
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#define BOARD_UART_PIN_RX (11) // PF.11 : UART0_RXD
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#define BOARD_LED0_PORT (0x0C)
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#define BOARD_LED0_PIN (2) // PC.2 = User LED
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#define BOARD_LED0_FUNCTION (4) // GPIO multiplexed as function 4 on PC.2
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#define BOARD_LED0_GPIO_PORT (6)
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#define BOARD_LED0_GPIO_PIN (1) // PC.2 = GPIO 6[1]
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void board_init(void)
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{
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CGU_Init();
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/* Setup the systick time for 1ms ticks */
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SysTick_Config(CGU_GetPCLKFrequency(CGU_PERIPHERAL_M4CORE) / CFG_TICKS_PER_SECOND);
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/* Configure LED0 as GPIO */
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scu_pinmux(BOARD_LED0_PORT, BOARD_LED0_PIN, MD_PDN, BOARD_LED0_FUNCTION);
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GPIO_SetDir(BOARD_LED0_GPIO_PORT, (1 << BOARD_LED0_GPIO_PIN), 1);
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/* Configure TRACE pins */
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scu_pinmux(0xF, 4, MD_PDN, 0x2); /* PF_4 = TRACECLK */
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scu_pinmux(0x7, 4, MD_PDN, 0x5); /* P7_4 = TRACEDATA[0] */
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scu_pinmux(0x7, 5, MD_PDN, 0x5); /* P7_5 = TRACEDATA[1] */
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scu_pinmux(0x7, 6, MD_PDN, 0x5); /* P7_6 = TRACEDATA[2] */
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scu_pinmux(0x7, 7, MD_PDN, 0x5); /* P7_7 = TRACEDATA[3] */
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// USB0 Power: EA4357 channel B U20 GPIO26 active low (base board), P2_3 on LPC4357
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scu_pinmux(0x2, 3, MD_PUP | MD_EZI, FUNC7); // USB0 VBus Power
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// 1.5Kohm pull-up resistor is needed on the USB DP data signal. GPIO28 (base), P9_5 (LPC4357) controls
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//scu_pinmux(0x9, 5, MD_PUP|MD_EZI|MD_ZI, FUNC4); // GPIO5[18]
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//GPIO_SetDir(5, BIT_(18), 1); // output
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//GPIO_ClearValue(5, BIT_(18));
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/* Init I2C @ 400kHz */
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I2C_Init(LPC_I2C0, 400000);
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I2C_Cmd(LPC_I2C0, ENABLE);
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#if CFG_UART_ENABLE
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//------------- UART init -------------//
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scu_pinmux(BOARD_UART_PIN_PORT, BOARD_UART_PIN_TX, MD_PDN , FUNC1);
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scu_pinmux(BOARD_UART_PIN_PORT, BOARD_UART_PIN_RX, MD_PLN|MD_EZI|MD_ZI, FUNC1);
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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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UARTConfigStruct.Clock_Speed = 0;
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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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#endif
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#if CFG_PRINTF_TARGET == PRINTF_TARGET_SWO
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#endif
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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 & 0x01)
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{
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LPC_GPIO_PORT->SET[BOARD_LED0_GPIO_PORT] = (1 << BOARD_LED0_GPIO_PIN);
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}
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if (off_mask & 0x01)
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{
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LPC_GPIO_PORT->CLR[BOARD_LED0_GPIO_PORT] = (1 << BOARD_LED0_GPIO_PIN);
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}
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}
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//--------------------------------------------------------------------+
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// UART
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//--------------------------------------------------------------------+
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#if CFG_UART_ENABLE
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uint32_t board_uart_send(uint8_t *buffer, uint32_t length)
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{
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return UART_Send(BOARD_UART_PORT, buffer, length, BLOCKING);
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}
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uint32_t board_uart_recv(uint8_t *buffer, uint32_t length)
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{
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return UART_Receive(BOARD_UART_PORT, buffer, length, BLOCKING);
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}
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#endif
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#endif
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