Initial project setup

managed_components/espressif__tinyusb/hw/bsp/lpc51/boards/lpcxpresso51u68/board.cmake

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+set(MCU_VARIANT LPC51U68)
+
+set(JLINK_DEVICE LPC51U68)
+set(PYOCD_TARGET LPC51U68)
+
+function(update_board TARGET)
+  target_compile_definitions(${TARGET} PUBLIC
+    CPU_LPC51U68JBD64
+    )
+  target_link_libraries(${TARGET} PUBLIC
+    ${SDK_DIR}/devices/${MCU_VARIANT}/gcc/libpower.a
+    )
+endfunction()

managed_components/espressif__tinyusb/hw/bsp/lpc51/boards/lpcxpresso51u68/board.h

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+/* metadata:
+   name: LPCXpresso51u68
+   url: https://www.nxp.com/products/processors-and-microcontrollers/arm-microcontrollers/general-purpose-mcus/lpcxpresso51u68-for-the-lpc51u68-mcus:OM40005
+*/
+
+#ifndef BOARD_H
+#define BOARD_H
+
+//--------------------------------------------------------------------+
+// MACRO TYPEDEF CONSTANT ENUM
+//--------------------------------------------------------------------+
+#define LED_PORT      0
+#define LED_PIN       29
+#define LED_STATE_ON  0
+
+// WAKE button
+#define BUTTON_PORT   0
+#define BUTTON_PIN    24
+
+// IOCON pin mux
+#define IOCON_PIO_DIGITAL_EN          0x80u   /*!< Enables digital function */
+#define IOCON_PIO_FUNC1               0x01u   /*!< Selects pin function 1 */
+#define IOCON_PIO_FUNC7               0x07u   /*!< Selects pin function 7 */
+#define IOCON_PIO_INPFILT_OFF       0x0100u   /*!< Input filter disabled */
+#define IOCON_PIO_INV_DI              0x00u   /*!< Input function is not inverted */
+#define IOCON_PIO_MODE_INACT          0x00u   /*!< No addition pin function */
+#define IOCON_PIO_OPENDRAIN_DI        0x00u   /*!< Open drain is disabled */
+#define IOCON_PIO_SLEW_STANDARD       0x00u   /*!< Standard mode, output slew rate control is enabled */
+
+/****************************************************************
+name: BOARD_BootClockFROHF96M
+outputs:
+- {id: SYSTICK_clock.outFreq, value: 96 MHz}
+- {id: System_clock.outFreq, value: 96 MHz}
+settings:
+- {id: SYSCON.MAINCLKSELA.sel, value: SYSCON.fro_hf}
+sources:
+- {id: SYSCON.fro_hf.outFreq, value: 96 MHz}
+******************************************************************/
+static inline void BootClockFROHF96M(void) {
+  /*!< Set up the clock sources */
+  /*!< Set up FRO */
+  POWER_DisablePD(kPDRUNCFG_PD_FRO_EN); /*!< Ensure FRO is on  */
+  CLOCK_AttachClk(kFRO12M_to_MAIN_CLK); /*!< Switch to FRO 12MHz first to ensure we can change voltage without
+                                             accidentally being below the voltage for current speed */
+  POWER_SetVoltageForFreq(96000000U); /*!< Set voltage for the one of the fastest clock outputs: System clock output */
+  CLOCK_SetFLASHAccessCyclesForFreq(96000000U); /*!< Set FLASH wait states for core */
+
+  CLOCK_SetupFROClocking(96000000U); /*!< Set up high frequency FRO output to selected frequency */
+
+  /*!< Set up dividers */
+  CLOCK_SetClkDiv(kCLOCK_DivAhbClk, 1U, false);     /*!< Set AHBCLKDIV divider to value 1 */
+  CLOCK_SetClkDiv(kCLOCK_DivSystickClk, 0U, true);  /*!< Reset SYSTICKCLKDIV divider counter and halt it */
+  CLOCK_SetClkDiv(kCLOCK_DivSystickClk, 1U, false); /*!< Set SYSTICKCLKDIV divider to value 1 */
+
+  /*!< Set up clock selectors - Attach clocks to the peripheries */
+  CLOCK_AttachClk(kFRO_HF_to_MAIN_CLK); /*!< Switch MAIN_CLK to FRO_HF */
+  /*!< Set SystemCoreClock variable. */
+  SystemCoreClock = 96000000U;
+}
+
+#endif

managed_components/espressif__tinyusb/hw/bsp/lpc51/boards/lpcxpresso51u68/board.mk

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+MCU = LPC51U68
+
+CFLAGS += \
+  -DCPU_LPC51U68JBD64 \
+  -DCFG_TUSB_MEM_SECTION='__attribute__((section(".data")))'
+
+JLINK_DEVICE = LPC51U68
+PYOCD_TARGET = LPC51U68
+
+# flash using pyocd (51u68 is not supported yet)
+flash: flash-pyocd