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hathachhathach
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tinyusb submodule work well
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‎cores/arduino/TinyUSB/Adafruit_TinyUSB_ArduinoCore

‎cores/arduino/TinyUSB/Adafruit_TinyUSB_Core.cpp

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/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2018, hathach for Adafruit
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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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#ifdef USE_TINYUSB
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#include "Arduino.h"
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#include "Adafruit_TinyUSB_Core.h"
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#include <Reset.h> // Needed for auto-reset with 1200bps port touch
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//--------------------------------------------------------------------+
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// MACRO TYPEDEF CONSTANT ENUM DECLARATION
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//--------------------------------------------------------------------+
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// Init usb hardware when starting up. Softdevice is not enabled yet
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static void usb_hardware_init(void)
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{
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#ifdef PIN_LED_TXL
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// txLEDPulse = 0;
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pinMode(PIN_LED_TXL, OUTPUT);
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digitalWrite(PIN_LED_TXL, HIGH);
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#endif
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#ifdef PIN_LED_RXL
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// rxLEDPulse = 0;
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pinMode(PIN_LED_RXL, OUTPUT);
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digitalWrite(PIN_LED_RXL, HIGH);
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#endif
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/* Enable USB clock */
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#if defined(__SAMD51__)
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MCLK->APBBMASK.reg |= MCLK_APBBMASK_USB;
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MCLK->AHBMASK.reg |= MCLK_AHBMASK_USB;
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// Set up the USB DP/DN pins
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PORT->Group[0].PINCFG[PIN_PA24H_USB_DM].bit.PMUXEN = 1;
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PORT->Group[0].PMUX[PIN_PA24H_USB_DM/2].reg &= ~(0xF << (4 * (PIN_PA24H_USB_DM & 0x01u)));
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PORT->Group[0].PMUX[PIN_PA24H_USB_DM/2].reg |= MUX_PA24H_USB_DM << (4 * (PIN_PA24H_USB_DM & 0x01u));
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PORT->Group[0].PINCFG[PIN_PA25H_USB_DP].bit.PMUXEN = 1;
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PORT->Group[0].PMUX[PIN_PA25H_USB_DP/2].reg &= ~(0xF << (4 * (PIN_PA25H_USB_DP & 0x01u)));
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PORT->Group[0].PMUX[PIN_PA25H_USB_DP/2].reg |= MUX_PA25H_USB_DP << (4 * (PIN_PA25H_USB_DP & 0x01u));
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GCLK->PCHCTRL[USB_GCLK_ID].reg = GCLK_PCHCTRL_GEN_GCLK1_Val | (1 << GCLK_PCHCTRL_CHEN_Pos);
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#else
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PM->APBBMASK.reg |= PM_APBBMASK_USB;
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// Set up the USB DP/DN pins
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PORT->Group[0].PINCFG[PIN_PA24G_USB_DM].bit.PMUXEN = 1;
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PORT->Group[0].PMUX[PIN_PA24G_USB_DM/2].reg &= ~(0xF << (4 * (PIN_PA24G_USB_DM & 0x01u)));
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PORT->Group[0].PMUX[PIN_PA24G_USB_DM/2].reg |= MUX_PA24G_USB_DM << (4 * (PIN_PA24G_USB_DM & 0x01u));
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PORT->Group[0].PINCFG[PIN_PA25G_USB_DP].bit.PMUXEN = 1;
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PORT->Group[0].PMUX[PIN_PA25G_USB_DP/2].reg &= ~(0xF << (4 * (PIN_PA25G_USB_DP & 0x01u)));
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PORT->Group[0].PMUX[PIN_PA25G_USB_DP/2].reg |= MUX_PA25G_USB_DP << (4 * (PIN_PA25G_USB_DP & 0x01u));
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// Put Generic Clock Generator 0 as source for Generic Clock Multiplexer 6 (USB reference)
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GCLK->CLKCTRL.reg = GCLK_CLKCTRL_ID(6) | // Generic Clock Multiplexer 6
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GCLK_CLKCTRL_GEN_GCLK0 | // Generic Clock Generator 0 is source
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GCLK_CLKCTRL_CLKEN;
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while (GCLK->STATUS.bit.SYNCBUSY)
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;
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#endif
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}
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uint8_t load_serial_number(uint16_t* serial_str)
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{
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enum { SERIAL_BYTE_LEN = 16 };
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#ifdef __SAMD51__
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uint32_t* id_addresses[4] = {(uint32_t *) 0x008061FC, (uint32_t *) 0x00806010,
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(uint32_t *) 0x00806014, (uint32_t *) 0x00806018};
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#else // samd21
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uint32_t* id_addresses[4] = {(uint32_t *) 0x0080A00C, (uint32_t *) 0x0080A040,
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(uint32_t *) 0x0080A044, (uint32_t *) 0x0080A048};
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#endif
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uint8_t raw_id[SERIAL_BYTE_LEN];
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for (int i=0; i<4; i++) {
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for (int k=0; k<4; k++) {
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raw_id[4 * i + (3 - k)] = (*(id_addresses[i]) >> k * 8) & 0xff;
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}
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}
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static const char nibble_to_hex[16] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
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for (unsigned int i = 0; i < sizeof(raw_id); i++) {
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for (int j = 0; j < 2; j++) {
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uint8_t nibble = (raw_id[i] >> (j * 4)) & 0xf;
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// Strings are UTF-16-LE encoded.
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serial_str[i * 2 + (1 - j)] = nibble_to_hex[nibble];
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}
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}
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return sizeof(raw_id)*2;
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}
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void Adafruit_TinyUSB_Core_init(void)
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{
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USBDevice.addInterface( (Adafruit_USBD_Interface&) Serial);
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USBDevice.setID(USB_VID, USB_PID);
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USBDevice.begin();
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usb_hardware_init();
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// Init tinyusb stack
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tusb_init();
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}
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void Adafruit_TinyUSB_Core_touch1200(void)
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{
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initiateReset(250);
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}
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extern "C"
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{
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void yield(void)
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{
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tud_task();
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tud_cdc_write_flush();
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}
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}
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#endif // USE_TINYUSB

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