93 lines
3.3 KiB
C
93 lines
3.3 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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#ifndef BOARD_H_
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#define BOARD_H_
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#include "fsl_device_registers.h"
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#define USB_CLOCK_SOURCE kCLOCK_IpSrcFircAsync
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// LED
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// The Red LED is on PTE29.
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// The Green LED is on PTC4.
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// The Blue LED is on PTE31.
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#define LED_PIN_CLOCK kCLOCK_PortC
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#define LED_GPIO GPIOC
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#define LED_PORT PORTC
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#define LED_PIN 4
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#define LED_STATE_ON 0
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// SW3 button1
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#define BUTTON_PIN_CLOCK kCLOCK_PortE
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#define BUTTON_GPIO GPIOE
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#define BUTTON_PORT PORTE
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#define BUTTON_PIN 4
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#define BUTTON_STATE_ACTIVE 0
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// UART
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#define UART_PORT LPUART0
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#define UART_PIN_CLOCK kCLOCK_PortB
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#define UART_PIN_GPIO GPIOB
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#define UART_PIN_PORT PORTB
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#define UART_PIN_RX 16u
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#define UART_PIN_TX 17u
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#define UART_CLOCK_SOURCE_HZ CLOCK_GetFreq(kCLOCK_ScgFircClk)
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static inline void BOARD_InitBootPins(void) {
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/*
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Enable LPUART0 clock and configure port pins.
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FIR clock is being used so the USB examples work.
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*/
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PCC_LPUART0 = 0U; /* Clock must be off to set PCS */
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PCC_LPUART0 = PCC_CLKCFG_PCS(
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3U); /* Select the clock. 1:OSCCLK/Bus Clock, 2:Slow IRC, 3: Fast IRC, 6: System PLL */
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PCC_LPUART0 |= PCC_CLKCFG_CGC(1U); /* Enable LPUART */
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/* PORTB16 (pin 62) is configured as LPUART0_RX */
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gpio_pin_config_t const lpuart_config_rx = {kGPIO_DigitalInput, 0};
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GPIO_PinInit(UART_PIN_GPIO, UART_PIN_RX, &lpuart_config_rx);
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const port_pin_config_t UART_CFG = {
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kPORT_PullUp,
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kPORT_FastSlewRate,
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kPORT_PassiveFilterDisable,
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kPORT_OpenDrainDisable,
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kPORT_LowDriveStrength,
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kPORT_MuxAsGpio,
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kPORT_UnlockRegister
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};
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PORT_SetPinConfig(UART_PIN_PORT, UART_PIN_RX, &UART_CFG);
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PORT_SetPinMux(UART_PIN_PORT, UART_PIN_RX, kPORT_MuxAlt3);
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/* PORTB17 (pin 63) is configured as LPUART0_TX */
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gpio_pin_config_t const lpuart_config_tx = {kGPIO_DigitalOutput, 0};
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GPIO_PinInit(UART_PIN_GPIO, UART_PIN_TX, &lpuart_config_tx);
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PORT_SetPinMux(UART_PIN_PORT, UART_PIN_TX, kPORT_MuxAlt3);
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}
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#endif /* BOARD_H_ */
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