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Examples
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USART
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Synchronous
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readme.txt

readme.txt 2.4 KB
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  1. /*!
    2. 

  2.     \file    readme.txt
    3. 

  3.     \brief   USART synchronous
    4. 

  4. 

  5.     \version 2017-02-10, V1.0.0, firmware for GD32F30x
    6. 

  6.     \version 2018-10-10, V1.1.0, firmware for GD32F30x
    7. 

  7.     \version 2018-12-25, V2.0.0, firmware for GD32F30x
    8. 

  8.     \version 2020-09-30, V2.1.0, firmware for GD32F30x
    9. 

  9. */
    10. 

  10. 

  11. /*
    12. 

  12.     Copyright (c) 2020, GigaDevice Semiconductor Inc.
    13. 

  13. 

  14.     Redistribution and use in source and binary forms, with or without modification, 
    15. 

  15. are permitted provided that the following conditions are met:
    16. 

  16. 

  17.     1. Redistributions of source code must retain the above copyright notice, this 
    18. 

  18.        list of conditions and the following disclaimer.
    19. 

  19.     2. Redistributions in binary form must reproduce the above copyright notice, 
    20. 

  20.        this list of conditions and the following disclaimer in the documentation 
    21. 

  21.        and/or other materials provided with the distribution.
    22. 

  22.     3. Neither the name of the copyright holder nor the names of its contributors 
    23. 

  23.        may be used to endorse or promote products derived from this software without 
    24. 

  24.        specific prior written permission.
    25. 

  25. 

  26.     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
    27. 

  27. AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
    28. 

  28. WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
    29. 

  29. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
    30. 

  30. INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
    31. 

  31. NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
    32. 

  32. PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
    33. 

  33. WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
    34. 

  34. ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
    35. 

  35. OF SUCH DAMAGE.
    36. 

  36. */
    37. 

  37. 

  38.   This demo is based on the GD32307C-EVAL-V1.1, it provides a basic 
    39. 

  39. communication between USART0 (Synchronous mode) and SPI0. First, USART0
    40. 

  40. transmits a series of data to SPI0, then SPI0 transmits a series of data 
    41. 

  41. to USART0. Compare the transmitted data and the received data. If the 
    42. 

  42. data transmitted from USART0 and received by SPI0 are the same, LED2 and
    43. 

  43. LED4 will be on, otherwise off. If the data transmitted from SPI0 and 
    44. 

  44. received by USART0 are the same, LED3 and LED5 will be on, otherwise off.
    45. 

  45.  
    46. 

  46.   connect SPI0 SCK  pin(PA5) TO USART0_CK  pin(PA8)
    47. 

  47.   connect SPI0 MISO pin(PA6) TO USART0_RX  pin(PA10)
    48. 

  48.   connect SPI0 MOSI pin(PA7) TO USART0_TX  pin(PA9)
    49. 

  49.