Initial project setup

managed_components/espressif__tinyusb/hw/bsp/lpc40/family.c

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+/*
+ * 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.
+ */
+
+/* metadata:
+   manufacturer: NXP
+*/
+
+#include "chip.h"
+#include "bsp/board_api.h"
+#include "board.h"
+
+//--------------------------------------------------------------------+
+// USB Interrupt Handler
+//--------------------------------------------------------------------+
+void USB_IRQHandler(void) {
+  #if CFG_TUD_ENABLED
+  tud_int_handler(0);
+  #endif
+
+  #if CFG_TUH_ENABLED
+  tuh_int_handler(0, true);
+  #endif
+}
+
+//--------------------------------------------------------------------+
+// MACRO TYPEDEF CONSTANT ENUM DECLARATION
+//--------------------------------------------------------------------+
+
+// Invoked by startup code
+void SystemInit(void) {
+#ifdef __USE_LPCOPEN
+  extern void (*const g_pfnVectors[])(void);
+  unsigned int *pSCB_VTOR = (unsigned int *) 0xE000ED08;
+  *pSCB_VTOR = (unsigned int) g_pfnVectors;
+
+  #if __FPU_USED == 1
+  fpuInit();
+  #endif
+#endif // __USE_LPCOPEN
+
+  Chip_IOCON_Init(LPC_IOCON);
+  Chip_IOCON_SetPinMuxing(LPC_IOCON, pinmuxing, sizeof(pinmuxing) / sizeof(PINMUX_GRP_T));
+
+#ifdef TRACE_ETM
+  const PINMUX_GRP_T trace_pinmux[] = {
+      {2, 2, IOCON_FUNC5 | IOCON_FASTSLEW_EN },
+      {2, 3, IOCON_FUNC5 | IOCON_FASTSLEW_EN },
+      {2, 4, IOCON_FUNC5 | IOCON_FASTSLEW_EN },
+      {2, 5, IOCON_FUNC5 | IOCON_FASTSLEW_EN },
+      {2, 6, IOCON_FUNC5 | IOCON_FASTSLEW_EN },
+  };
+  Chip_IOCON_SetPinMuxing(LPC_IOCON, trace_pinmux, sizeof(trace_pinmux) / sizeof(PINMUX_GRP_T));
+#endif
+
+  /* CPU clock source starts with IRC */
+  /* Enable PBOOST for CPU clock over 100MHz */
+  Chip_SYSCTL_EnableBoost();
+
+  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(USB_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY);
+#endif
+
+  Chip_GPIO_Init(LPC_GPIO);
+
+  // LED
+  Chip_GPIO_SetPinDIROutput(LPC_GPIO, LED_PORT, LED_PIN);
+
+  // Button
+  Chip_GPIO_SetPinDIRInput(LPC_GPIO, BUTTON_PORT, BUTTON_PIN);
+
+  // UART
+
+  //------------- USB -------------//
+
+  // Port1 as Host, Port2: Device
+  Chip_USB_Init();
+
+  enum {
+    USBCLK_DEVCIE = 0x12, // AHB + Device
+    USBCLK_HOST = 0x19,  // AHB + OTG + Host
+    USBCLK_ALL = 0x1B    // Host + Device + OTG + AHB
+  };
+
+  LPC_USB->OTGClkCtrl = USBCLK_ALL;
+  while ( (LPC_USB->OTGClkSt & USBCLK_ALL) != USBCLK_ALL ) {}
+
+  // set portfunc: USB1 = host, USB2 = device
+  LPC_USB->StCtrl = 0x3;
+}
+
+//--------------------------------------------------------------------+
+// Board porting API
+//--------------------------------------------------------------------+
+
+void board_led_write(bool state) {
+  Chip_GPIO_SetPinState(LPC_GPIO, LED_PORT, LED_PIN, state);
+}
+
+uint32_t board_button_read(void) {
+  return BUTTON_ACTIV_STATE == Chip_GPIO_GetPinState(LPC_GPIO, BUTTON_PORT, BUTTON_PIN);
+}
+
+int board_uart_read(uint8_t *buf, int len) {
+  //return UART_ReceiveByte(BOARD_UART_PORT);
+  (void) buf;
+  (void) len;
+  return 0;
+}
+
+int board_uart_write(void const *buf, int len) {
+  //UART_Send(BOARD_UART_PORT, &c, 1, BLOCKING);
+  (void) buf;
+  (void) len;
+  return 0;
+}
+
+#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