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  1. /* Teensyduino Core Library
  2. * http://www.pjrc.com/teensy/
  3. * Copyright (c) 2019 PJRC.COM, LLC.
  4. *
  5. * Permission is hereby granted, free of charge, to any person obtaining
  6. * a copy of this software and associated documentation files (the
  7. * "Software"), to deal in the Software without restriction, including
  8. * without limitation the rights to use, copy, modify, merge, publish,
  9. * distribute, sublicense, and/or sell copies of the Software, and to
  10. * permit persons to whom the Software is furnished to do so, subject to
  11. * the following conditions:
  12. *
  13. * 1. The above copyright notice and this permission notice shall be
  14. * included in all copies or substantial portions of the Software.
  15. *
  16. * 2. If the Software is incorporated into a build system that allows
  17. * selection among a list of target devices, then similar target
  18. * devices manufactured by PJRC.COM must be included in the list of
  19. * target devices and selectable in the same manner.
  20. *
  21. * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22. * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23. * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24. * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  25. * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  26. * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  27. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  28. * SOFTWARE.
  29. */
  30. #include <Arduino.h>
  31. #include "HardwareSerial.h"
  32. #ifndef SERIAL1_TX_BUFFER_SIZE
  33. #define SERIAL1_TX_BUFFER_SIZE 64 // number of outgoing bytes to buffer
  34. #endif
  35. #ifndef SERIAL1_RX_BUFFER_SIZE
  36. #define SERIAL1_RX_BUFFER_SIZE 64 // number of incoming bytes to buffer
  37. #endif
  38. #define IRQ_PRIORITY 64 // 0 = highest priority, 255 = lowest
  39. void IRQHandler_Serial1()
  40. {
  41. Serial1.IRQHandler();
  42. }
  43. // Serial1
  44. static BUFTYPE tx_buffer1[SERIAL1_TX_BUFFER_SIZE];
  45. static BUFTYPE rx_buffer1[SERIAL1_RX_BUFFER_SIZE];
  46. uint8_t _serialEvent1_default __attribute__((weak)) PROGMEM = 0 ;
  47. const HardwareSerial::hardware_t UART6_Hardware = {
  48. 0, IRQ_LPUART6, &IRQHandler_Serial1,
  49. &serialEvent1, &_serialEvent1_default,
  50. CCM_CCGR3, CCM_CCGR3_LPUART6(CCM_CCGR_ON),
  51. #if defined(ARDUINO_TEENSY41)
  52. {{0,2, &IOMUXC_LPUART6_RX_SELECT_INPUT, 1}, {52, 2, &IOMUXC_LPUART6_RX_SELECT_INPUT, 0}},
  53. {{1,2, &IOMUXC_LPUART6_TX_SELECT_INPUT, 0}, {53, 2, nullptr, 0}},
  54. #else
  55. {{0,2, &IOMUXC_LPUART6_RX_SELECT_INPUT, 1}, {0xff, 0xff, nullptr, 0}},
  56. {{1,2, &IOMUXC_LPUART6_TX_SELECT_INPUT, 1}, {0xff, 0xff, nullptr, 0}},
  57. #endif
  58. 0xff, // No CTS pin
  59. 0, // No CTS
  60. IRQ_PRIORITY, 38, 24, // IRQ, rts_low_watermark, rts_high_watermark
  61. XBARA1_OUT_LPUART6_TRG_INPUT // XBar Tigger
  62. };
  63. HardwareSerial Serial1(&IMXRT_LPUART6, &UART6_Hardware, tx_buffer1, SERIAL1_TX_BUFFER_SIZE,
  64. rx_buffer1, SERIAL1_RX_BUFFER_SIZE);
  65. //void serialEvent1() __attribute__((weak));
  66. //void serialEvent1() {Serial1.disableSerialEvents(); } // No use calling this so disable if called...
  67. // C wrapper functions to help take care of places that used to call these from standard C
  68. void serial_print(const char *p)
  69. {
  70. Serial1.write(p);
  71. }
  72. static void serial_phex1(uint32_t n)
  73. {
  74. n &= 15;
  75. if (n < 10) {
  76. Serial1.write('0' + n);
  77. } else {
  78. Serial1.write('A' - 10 + n);
  79. }
  80. }
  81. void serial_phex(uint32_t n)
  82. {
  83. serial_phex1(n >> 4);
  84. serial_phex1(n);
  85. }
  86. void serial_phex16(uint32_t n)
  87. {
  88. serial_phex(n >> 8);
  89. serial_phex(n);
  90. }
  91. void serial_phex32(uint32_t n)
  92. {
  93. serial_phex(n >> 24);
  94. serial_phex(n >> 16);
  95. serial_phex(n >> 8);
  96. serial_phex(n);
  97. }