|
|
@@ -0,0 +1,152 @@
|
|
|
+/*
|
|
|
+ * The MIT License (MIT)
|
|
|
+ *
|
|
|
+ * Copyright (c) 2020 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.
|
|
|
+ */
|
|
|
+
|
|
|
+#include "bsp/board.h"
|
|
|
+
|
|
|
+#include "sam.h"
|
|
|
+#include "hal/include/hal_gpio.h"
|
|
|
+#include "hal/include/hal_init.h"
|
|
|
+#include "hri/hri_nvmctrl_d11.h"
|
|
|
+
|
|
|
+#include "hpl/gclk/hpl_gclk_base.h"
|
|
|
+#include "hpl_pm_config.h"
|
|
|
+#include "hpl/pm/hpl_pm_base.h"
|
|
|
+
|
|
|
+//--------------------------------------------------------------------+
|
|
|
+// Forward USB interrupt events to TinyUSB IRQ Handler
|
|
|
+//--------------------------------------------------------------------+
|
|
|
+void USB_Handler(void)
|
|
|
+{
|
|
|
+ tud_int_handler(0);
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+//--------------------------------------------------------------------+
|
|
|
+// MACRO TYPEDEF CONSTANT ENUM DECLARATION
|
|
|
+//--------------------------------------------------------------------+
|
|
|
+#define LED_PIN PIN_PA16 // pin PA22
|
|
|
+#define BUTTON_PIN PIN_PA14 // pin PB22
|
|
|
+
|
|
|
+/* Referenced GCLKs, should be initialized firstly */
|
|
|
+#define _GCLK_INIT_1ST (1 << 0 | 1 << 1)
|
|
|
+
|
|
|
+/* Not referenced GCLKs, initialized last */
|
|
|
+#define _GCLK_INIT_LAST (~_GCLK_INIT_1ST)
|
|
|
+
|
|
|
+void board_init(void)
|
|
|
+{
|
|
|
+ // Clock init ( follow hpl_init.c )
|
|
|
+ hri_nvmctrl_set_CTRLB_RWS_bf(NVMCTRL, 2);
|
|
|
+
|
|
|
+ _pm_init();
|
|
|
+ _sysctrl_init_sources();
|
|
|
+#if _GCLK_INIT_1ST
|
|
|
+ _gclk_init_generators_by_fref(_GCLK_INIT_1ST);
|
|
|
+#endif
|
|
|
+ _sysctrl_init_referenced_generators();
|
|
|
+ _gclk_init_generators_by_fref(_GCLK_INIT_LAST);
|
|
|
+
|
|
|
+ // 1ms tick timer (samd SystemCoreClock may not correct)
|
|
|
+ SystemCoreClock = CONF_CPU_FREQUENCY;
|
|
|
+ SysTick_Config(CONF_CPU_FREQUENCY / 1000);
|
|
|
+
|
|
|
+ // Led init
|
|
|
+ gpio_set_pin_direction(LED_PIN, GPIO_DIRECTION_OUT);
|
|
|
+ gpio_set_pin_level(LED_PIN, 0);
|
|
|
+
|
|
|
+ // Button init
|
|
|
+ gpio_set_pin_direction(BUTTON_PIN, GPIO_DIRECTION_IN);
|
|
|
+ gpio_set_pin_pull_mode(BUTTON_PIN, GPIO_PULL_UP);
|
|
|
+
|
|
|
+ /* USB Clock init
|
|
|
+ * The USB module requires a GCLK_USB of 48 MHz ~ 0.25% clock
|
|
|
+ * for low speed and full speed operation. */
|
|
|
+ _pm_enable_bus_clock(PM_BUS_APBB, USB);
|
|
|
+ _pm_enable_bus_clock(PM_BUS_AHB, USB);
|
|
|
+ _gclk_enable_channel(USB_GCLK_ID, GCLK_CLKCTRL_GEN_GCLK0_Val);
|
|
|
+
|
|
|
+ // USB Pin Init
|
|
|
+ gpio_set_pin_direction(PIN_PA24, GPIO_DIRECTION_OUT);
|
|
|
+ gpio_set_pin_level(PIN_PA24, false);
|
|
|
+ gpio_set_pin_pull_mode(PIN_PA24, GPIO_PULL_OFF);
|
|
|
+ gpio_set_pin_direction(PIN_PA25, GPIO_DIRECTION_OUT);
|
|
|
+ gpio_set_pin_level(PIN_PA25, false);
|
|
|
+ gpio_set_pin_pull_mode(PIN_PA25, GPIO_PULL_OFF);
|
|
|
+
|
|
|
+ gpio_set_pin_function(PIN_PA24, PINMUX_PA24G_USB_DM);
|
|
|
+ gpio_set_pin_function(PIN_PA25, PINMUX_PA25G_USB_DP);
|
|
|
+}
|
|
|
+
|
|
|
+//--------------------------------------------------------------------+
|
|
|
+// Board porting API
|
|
|
+//--------------------------------------------------------------------+
|
|
|
+
|
|
|
+void board_led_write(bool state)
|
|
|
+{
|
|
|
+ gpio_set_pin_level(LED_PIN, state);
|
|
|
+}
|
|
|
+
|
|
|
+uint32_t board_button_read(void)
|
|
|
+{
|
|
|
+ // button is active low
|
|
|
+ return gpio_get_pin_level(BUTTON_PIN) ? 0 : 1;
|
|
|
+}
|
|
|
+
|
|
|
+int board_uart_read(uint8_t* buf, int len)
|
|
|
+{
|
|
|
+ (void) buf; (void) len;
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+int board_uart_write(void const * buf, int len)
|
|
|
+{
|
|
|
+ (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;
|
|
|
+}
|
|
|
+
|
|
|
+void _init(void)
|
|
|
+{
|
|
|
+ // This _init() standin makes certain GCC environments happier.
|
|
|
+ // They expect the main binary to have a constructor called _init; but don't provide a weak default.
|
|
|
+ // Providing an empty constructor satisfies this odd case, and doesn't harm anything.
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+#endif
|
Katherine Temkin