351 lines
10 KiB
C
351 lines
10 KiB
C
//****************************************************************************
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// @Module UART (Serial Interface)
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// @Filename UART.C
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// @Project CL2.0.dav
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//----------------------------------------------------------------------------
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// @Controller Infineon XC886CLM-8FF
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//
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// @Compiler Keil
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//
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// @Codegenerator 1.3
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//
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// @Description: This file contains functions that use the UART module.
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//
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//----------------------------------------------------------------------------
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// @Date 2024/12/12 19:56:03
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//
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//****************************************************************************
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// USER CODE BEGIN (UART_General,1)
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// USER CODE END
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//****************************************************************************
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// @Project Includes
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//****************************************************************************
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#include "MAIN.H"
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// USER CODE BEGIN (UART_General,2)
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// USER CODE END
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//****************************************************************************
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// @Macros
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//****************************************************************************
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// USER CODE BEGIN (UART_General,3)
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// USER CODE END
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//****************************************************************************
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// @Defines
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//****************************************************************************
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// USER CODE BEGIN (UART_General,4)
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// USER CODE END
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//****************************************************************************
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// @Typedefs
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//****************************************************************************
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// USER CODE BEGIN (UART_General,5)
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// USER CODE END
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//****************************************************************************
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// @Imported Global Variables
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//****************************************************************************
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// USER CODE BEGIN (UART_General,6)
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// USER CODE END
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//****************************************************************************
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// @Global Variables
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//****************************************************************************
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// USER CODE BEGIN (UART_General,7)
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// USER CODE END
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//****************************************************************************
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// @External Prototypes
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//****************************************************************************
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// USER CODE BEGIN (UART_General,8)
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// USER CODE END
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//****************************************************************************
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// @Prototypes Of Local Functions
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//****************************************************************************
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// USER CODE BEGIN (UART_General,9)
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// USER CODE END
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//****************************************************************************
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// @Function void UART_vInit(void)
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//
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//----------------------------------------------------------------------------
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// @Description This is the initialization function of the UART function
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// library. It is assumed that the SFRs used by this library
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// are in their reset state.
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//
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// The following SFR fields will be initialized:
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// - register SCON
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// - bits SMOD and ES
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//
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//----------------------------------------------------------------------------
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// @Returnvalue None
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//
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//----------------------------------------------------------------------------
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// @Parameters None
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//
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//----------------------------------------------------------------------------
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// @Date 2024/12/12
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//
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//****************************************************************************
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// USER CODE BEGIN (UART_Init,1)
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// USER CODE END
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void UART_vInit(void)
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{
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// USER CODE BEGIN (UART_Init,2)
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// USER CODE END
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/// -----------------------------------------------------------------------
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/// UART settings
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/// -----------------------------------------------------------------------
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/// Pin TXD_1 (P0.2) is selected for transmission
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/// Pin RXD_1 (P0.1) is selected for reception
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/// Receiver enabled
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/// Mode 1: 8-bit data, 1 start bit, 1 stop bit, variable baud rate
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/// BRG is selected for baudrate generation
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SFR_PAGE(_pp2, noSST); // switch to page 2 without saving
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P0_ALTSEL0 &= ~(ubyte)0x04; // configure alternate function register 0
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P0_ALTSEL1 |= (ubyte)0x04; // configure alternate function register 1
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SFR_PAGE(_pp0, noSST); // switch to page 0 without saving
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P0_DIR |= (ubyte)0x04; // set output direction
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MODPISEL |= (ubyte)0x01; // configure peripheral input select register
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BCON = 0x00; // reset baudrate timer/reload register
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SCON = 0x50; // load serial channel control register
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/// -----------------------------------------------------------------------
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/// Baudrate generator settings
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/// -----------------------------------------------------------------------
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/// input clock = fPCLK
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/// Fractional divider is disabled
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/// baudrate = 100.0000 kbaud
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BG = 0x0E; // load baudrate timer/reload register
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BCON |= 0x01; // load baud rate control register
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// USER CODE BEGIN (UART_Init,3)
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// USER CODE END
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/// UART interrupt enabled
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ES = 1;
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} // End of function UART_vInit
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//****************************************************************************
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// @Function void UART_viIsr(void)
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//
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//----------------------------------------------------------------------------
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// @Description This is the service routine for the UART interrupt. It is
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// called after each transmission (flag TI set) or reception
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// (flag RI set) of a data unit.
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// Please note that you have to add application specific code
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// to this function.
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//
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//----------------------------------------------------------------------------
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// @Returnvalue None
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//
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//----------------------------------------------------------------------------
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// @Parameters None
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//
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//----------------------------------------------------------------------------
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// @Date 2024/12/12
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//
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//****************************************************************************
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// You have two choices for interrupt type select in Project Settings Page
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// under Global Settings Section.
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// If you select CHOICE 1 then ISR will be generated with push and pop.
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// If you select CHOICE 2 then ISR will be generated without push and pop.
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// Default choice is CHOICE 2.
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// Current selection is CHOICE 2
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// USER CODE BEGIN (UART_Isr,1)
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uint16_t char_data[25] = {0};
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// USER CODE END
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void UART_viIsr(void) interrupt UARTINT
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{
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// USER CODE BEGIN (UART_Isr,2)
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// static uint8_t i = 0;
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static uint8_t cnt_sbus = 0;
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static uint8_t state = 0;
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static uint8_t receive = 0;
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static uint8_t sbus_buff[25];
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SBusData *tmp_sbus_data;
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// USER CODE END
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SFR_PAGE(_su0, SST0); // switch to page 0
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if (TI)
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{
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// USER CODE BEGIN (UART_Isr,3)
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TI = 0;
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// USER CODE END
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}
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if (RI)
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{
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// USER CODE BEGIN (UART_Isr,4)
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RI = 0;
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char_data[0] = (ubyte)SBUF;
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// UART_vSendData8(char_data[0]);
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switch(state)
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{
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case 0:
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if(0x0f == char_data[0])
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{
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receive = 0;
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cnt_sbus = 0;
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sbus_buff[cnt_sbus] = char_data[0];
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cnt_sbus++;
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state = 1;
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}
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else
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{
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state = 0;
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}
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break;
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case 1:
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if(cnt_sbus >= 24)
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{
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if(0x0 == char_data[0])
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{
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cnt_sbus = 0;
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receive = 0;
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sbus_buff[cnt_sbus] = char_data[0];
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state = 0;
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tmp_sbus_data = parseSBusData(sbus_buff);
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}
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}
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else if( (0x0f == char_data[0]) && (10 != cnt_sbus) )//<2F><>Ϊ<EFBFBD><CEAA>10<31><30><EFBFBD>ֽ<EFBFBD>Ϊ0x0F<30><46><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD>Բ<EFBFBD><D4B2><EFBFBD><EFBFBD><EFBFBD>0
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{
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receive = 0;
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cnt_sbus = 0;
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sbus_buff[cnt_sbus] = char_data[0];
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cnt_sbus++;
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state = 1;
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}
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else
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{
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sbus_buff[cnt_sbus] = char_data[0];
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cnt_sbus ++;
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state = 1;
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}
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break;
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default:break;
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}
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// USER CODE END
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}
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// USER CODE BEGIN (UART_Isr,5)
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// USER CODE END
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SFR_PAGE(_su0, RST0); // restore the old page
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} // End of function UART_viIsr
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//****************************************************************************
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// @Function ubyte UART_ubGetData8(void)
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//
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//----------------------------------------------------------------------------
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// @Description This function returns the last received 8-bit data unit.
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// Interrupt flag RI will be cleared.
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//
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//----------------------------------------------------------------------------
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// @Returnvalue received data unit
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//
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//----------------------------------------------------------------------------
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// @Parameters None
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//
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//----------------------------------------------------------------------------
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// @Date 2024/12/12
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//
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//****************************************************************************
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//ubyte UART_ubGetData8(void)
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//{
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// // Clear the receiver interrupt flag
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// RI = 0;
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// // Return the received data byte
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// return(SBUF);
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//} // End of function UART_ubGetData8
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//****************************************************************************
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// @Function void UART_vSendData8(ubyte ubData)
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//
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//----------------------------------------------------------------------------
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// @Description This function transmits an 8-bit data unit. At first
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// interrupt flag TI is cleared, then buffer SBUF is written.
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//
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//----------------------------------------------------------------------------
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// @Returnvalue None
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//
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//----------------------------------------------------------------------------
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// @Parameters ubData:
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// data to be transmitted
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//
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//----------------------------------------------------------------------------
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// @Date 2024/12/12
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//
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//****************************************************************************
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//void UART_vSendData8(ubyte ubData)
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//{
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// // Clear the transmitter interrupt flag
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// TI = 0;
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// // Write the transmit data byte, this initiates the transmission.
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// SBUF = ubData;
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//} // End of function UART_vSendData8
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// USER CODE BEGIN (UART_General,10)
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// USER CODE END
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