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CAN_BUF0_DBLBUFFER_EN); /* Load message ID , Data into transmit buffer and set transmit request bit */ datalen = 8; CAN1SendMessage((CAN_TX_SID(1920)) & CAN_TX_EID_EN & CAN_SUB_NOR_TX_REQ, (CAN_TX_EID(12344))& CAN_NOR_TX_REQ, Txdata,datalen,tx_rx_no); dsPIC ® Language Tools Libraries DS51456B-page 94 /* Set request for Loopback mode */ 2004 Microchip Technology Inc. CAN1SetOperationMode(CAN_IDLE_CON & CAN_CAPTURE_DIS & CAN_MASTERCLOCK_1 & CAN_REQ_OPERMODE_LOOPBK); while(C1CTRLbits.OPMODE !=2); /* Wait till messageis transmitted completely */ while(!CAN1IsTXReady(0)) /* Wait till receive buffer contain valid message */ while(!CAN1IsRXReady(0)); /* Read received data fromreceive buffer and store it into user defined dataarray */ CAN1ReceiveMessage(datareceived, datalen, tx_rx_no); while(1); return 0; } dsPIC Peripheral Libraries 2004 Microchip Technology Inc. DS51456B-page 95 3.5 ADC12 FUNCTIONS This section contains a list of individual functions for the 12 bit ADC and an example of use of the functions. Functions may be implemented as macros. 3.5.1 Individual Functions BusyADC12 Description: This function returns the ADC conversion status. Include: adc12.h Prototype: char BusyADC12(void); Arguments: None DS51456B trang 96 Ưu tiên ngắt ADC ADC_INT_PRI_0 ADC_INT_PRI_1 ADC_INT_PRI_2 ADC_INT_PRI_3 ADC_INT_PRI_4 ADC_INT_PRI_5 ADC_INT_PRI_6 ADC_INT_PRI_7 Trở lại giá trị: Không 2004 Microchip Technology Inc Bình luận: Chức năng này sẽ xóa sạch các (ADIF) bit Cờ ngắt và sau đó đặt gián đoạn ưu tiên và cho phép / vô hiệu hóa ngắt. Source File: ConfigIntADC12.c Mã số Ví dụ: ConfigIntADC12 (ADC_INT_PRI_6 & ADC_INT_ENABLE); ConvertADC12 Mô tả: Chức năng này bắt đầu chuyển đổi A / D. Bao gồm: adc12.h Prototype: void ConvertADC12 (void); Lập luận: Không Trở lại giá trị: Không Bình luận: Chức năng này sẽ xóa sạch các ADCON1 bit và do đó dừng lại lấy mẫu và bắt đầu chuyển đổi. Điều này chỉ xảy ra khi nguồn kích hoạt cho việc chuyển đổi A / D chọn làm bằng tay, bằng cách xóa ADCON1 bit. Source File: ConvertADC12.c Mã số Ví dụ: ConvertADC12 (); OpenADC12 Mô tả: Chức năng này cấu hình ADC. Bao gồm: adc12.h Prototype: void OpenADC12 (int config1, int config2, int config3, int configport, int configscan) Đối số: config1 này chứa các thông số phải được cấu hình trong ADCON1 đăng ký theo quy định dưới đây: Mô-đun On / Off
Return Value: If the value of DONE is ‘0’, then ‘1’ is returned, indicating that the ADC is busy in conversion. If the value of DONE is ‘1’, then ‘0’ is returned, indicating that the ADC has completed conversion. Remarks: This function returns the complement of the ADCON1 bit status which indicates whether the ADC is busy in conversion. Source File: BusyADC12.c Code Example: while(BusyADC12()); CloseADC12 Description: This function turns off the ADC module and disables the ADC interrupts. Include: adc12.h Prototype: void CloseADC12(void); Arguments: None Return Value: None Remarks: This function first disables the ADC interrupt and then turns off the ADC module.The Interrupt Flag bit (ADIF) is also cleared. Source File: CloseADC12.c Code Example: CloseADC12(); ConfigIntADC12 Description: This function configures the ADC interrupt. Include: adc12.h Prototype: void ConfigIntADC12(unsigned int config); Arguments: config ADC interrupt priority and enable/disable information as defined below: ADC Interrupt enable/disable ADC_INT_ENABLE ADC_INT_DISABLE dsPIC ® Language Tools Libraries DS51456B-page 96 ADC Interrupt priority ADC_INT_PRI_0 ADC_INT_PRI_1 ADC_INT_PRI_2 ADC_INT_PRI_3 ADC_INT_PRI_4 2004 Microchip Technology Inc. ADC_MODULE_ON ADC_MODULE_OFF Hoạt động chế độ nhàn rỗi ADC_IDLE_CONTINUE ADC_IDLE_STOP ConfigIntADC12 (Tiếp theo) dsPIC Thư viện ngoại vi 2004 Microchip Technology Inc DS51456B trang 97 Định dạng đầu ra kết quả ADC_FORMAT_SIGN_FRACT ADC_FORMAT_FRACT ADC_FORMAT_SIGN_INT ADC_FORMAT_INTG Chuyển đổi nguồn kích hoạt ADC_CLK_AUTO ADC_CLK_TMR ADC_CLK_INT0 ADC_CLK_MANUAL Tự động lấy mẫu chọn ADC_AUTO_SAMPLING_ON ADC_AUTO_SAMPLING_OFF Mẫu cho phép ADC_SAMP_ON ADC_SAMP_OFF config2 này chứa các thông số phải được cấu hình trong ADCON2 đăng ký theo quy định dưới đây: Điện áp tham khảo ADC_VREF_AVDD_AVSS ADC_VREF_EXT_AVSS ADC_VREF_AVDD_EXT ADC_VREF_EXT_EXT Lựa chọn quét ADC_SCAN_ON ADC_SCAN_OFF Số mẫu giữa ngắt ADC_SAMPLES_PER_INT_1 ADC_SAMPLES_PER_INT_2 ..... ADC_SAMPLES_PER_INT_15
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2004 Microchip Technology Inc. DS51
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dsPIC ®LANGUAGE TOOLS LIBRARIES 20
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215 4.11 variable argument lists .
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and macros for standard C operation
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This documentation is provided on t
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• Development Systems Information
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data section. The alternate startup
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specific libraries.) When compiling
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esults will occur when the function
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A batch file named makedsplib.batis
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-15 or smaller than -1.0. Analogous
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CORCON saved, used, restored DOand
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fractional* srcV ); Arguments: numE
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VectorCorrelateis 4 less than whate
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less than or equal to any previous
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Remarks: The negated value of 0x800
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Cycles (including C-function call a
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plus program words from VectorCopy
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Prototype: extern fractional* Black
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); Arguments: numElems number of el
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the base address of the matrix. Bec
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in default RAM memory space (X-Data
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0 ≤i < numRows1 0 ≤j < numCols2
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20 + 3(numRows*numCols) MatrixSubtr
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(of the same dimension) whose eleme
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history of the filter. After perfor
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Oppenheim and Ronald Schafer’s Di
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modulo buffer. Source samples, x[n]
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FIRDelayInit Description: FIRDelayI
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filter. Include: dsp.h Prototype: e
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FIRStruct* filter, fractional* refS
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energyEstimate estimated energy val
Page 65 and 66: fractional* delayBase ); Arguments:
Page 67 and 68: Source File: iircan.asm DSP Library
Page 69 and 70: srcSamps pointer to source samples
Page 71 and 72: } IIRTransposedStruct; extern fract
Page 73 and 74: no REPEATinstructions Program words
Page 75 and 76: Language Tools Libraries DS51456B-p
Page 77 and 78: for instance if: a = Op1 (b, c), wi
Page 79 and 80: and stores the results in the desti
Page 81 and 82: Description: DCTIPcomputes the Disc
Page 83 and 84: int log2N, fractcomplex* dstCV, fra
Page 85 and 86: fractcomplex* srcCV, fractcomplex*
Page 89 and 90: value can be calculated using the i
Page 91 and 92: A complex vector of size N/2 must h
Page 93 and 94: specific libraries. When compiling
Page 95 and 96: Control I/O pin definitions RW_PIN
Page 97 and 98: y calling the BusyXLCD()function. T
Page 99 and 100: COM1_COM16 COM16_COM1 Display On/Of
Page 101 and 102: Source File: CAN1AbortAll.c CAN2Abo
Page 103 and 104: char CAN2IsRXPassive(void); Argumen
Page 105 and 106: CAN2SendMessage Description: This f
Page 107 and 108: CAN2SetMask Description: This funct
Page 109 and 110: CAN_IDLE_CON_NO_WAITCAN On in Idle
Page 113 and 114: CAN_INDI_INVMESS_DIS CAN_INDI_WAK_D
Page 115: { /* Length of data tobe transmitte
Page 119 and 120: dsPIC Peripheral Libraries 2004 Mic
Page 121 and 122: ..... SKIP_SCAN_AN15 Return Value:
Page 123 and 124: DS51456B-page 100 3.5.2 Individual
Page 125 and 126: 3.6 ADC10 FUNCTIONS This section co
Page 127 and 128: Module On/Off ADC_MODULE_ON ADC_MOD
Page 129 and 130: ADPCFG register as defined below: E
Page 131 and 132: ADC_CHX_NEG_SAMPLEB_AN6AN7AN8 ADC_C
Page 133 and 134: Scanselect = SKIP_SCAN_AN2 & SKIP_S
Page 135 and 136: dsPIC ® Language Tools Libraries D
Page 137 and 138: void OpenTimer4(unsigned int config
Page 139 and 140: Tx_SOURCE_EXT Tx_SOURCE_INT period
Page 141 and 142: 3.7.2 Individual Macros WriteTimer2
Page 143 and 144: SetPriorityIntT4 SetPriorityIntT5 D
Page 145 and 146: Code Example: char reset_state; res
Page 147 and 148: Arguments: None Remarks: This macro
Page 149 and 150: stored into CNPU2 register. The upp
Page 151 and 152: SetPriorityInt2 SetPriorityInt3 Set
Page 153 and 154: IC_INT_PRIOR_3 IC_INT_PRIOR_4 IC_IN
Page 155 and 156: ReadCapture3 ReadCapture4 ReadCaptu
Page 157 and 158: dsPIC ® Language Tools Libraries D
Page 159 and 160: void CloseOC4(void); void CloseOC5(
Page 161 and 162: Include: outcompare.h Prototype: vo
Page 163 and 164: Include: outcompare.h Prototype: un
Page 165 and 166: SetDCOC3PWM SetDCOC4PWM SetDCOC5PWM
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Code Example: pulse_start = 0x40 ;
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T3CON = 0x8000; T1CON = 0X8000; /*
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Transmit Interrupt Priority UART_TX
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UART_1STOPBIT config2 This contains
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Source File: WriteUART1.c WriteUART
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Code Example: EnableIntU2TX; Disabl
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ConfigIntUART1(UART_RX_INT_EN & UAR
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DCI_INT_PRI_4 DCI_INT_PRI_5 DCI_INT
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DCI_FRAME_LEN_15 DCI_FRAME_LEN_14 .
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Prototype: unsigned int ReadDCI(uns
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contents are sent duringthe timeslo
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SPI_INT_PRI_4 SPI_INT_PRI_5 SPI_INT
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Prototype: void WriteSPI1(unsigned
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Remarks: This functions initializes
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2004 Microchip Technology Inc. DS51
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SEC_PRESCAL_7_1 & PRI_PRESCAL_64_1;
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enables/disables the interrupt. Sou
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QEI_QE_CLK_DIVIDE_1_32 QEI_QE_CLK_D
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} int main(void) { unsigned int max
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dsPIC ® Language Tools Libraries D
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PWM_PEN2H PWM_PDIS2H PWM_PEN1H PWM_
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PWM_POUT_1L Bit defines related to
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PWM_DTS3I_UA PWM_DTS3I_UB Dead Time
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PWM_OVA3H_INACTIVE PWM_OVA2H_INACTI
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Language Tools Libraries DS51456B-p
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#include #include void __attribute
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Prototype: void ConfigIntI2C(unsign
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Arguments: None Return Value None R
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a #definestatement in the i2c.h Sou
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I2C_IDLE_CON SCL Release Control bi
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i2c_data_wait This is the timeout c
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3.17.2 Individual Macros StartI2C D
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Arguments: None Remarks: This macro
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• src\libm- source code for math
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Remarks: The expression evaluates t
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if (isalpha(ch)) printf("# is alpha
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Remarks: A character is considered
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ch = '&'; if (isprint(ch)) printf("
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int ch; ch = 'B'; printf("B changes
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DBL_MIN_10_EXP Description: Minimum
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Include: Value: 1 Remarks: Rounds
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Description: Maximum value of a lon
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abort - terminating See the example
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} Output: Illegal instruction execu
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must be at least one named argument
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Include: Prototype: #define va_end
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to perform input and output operati
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_IOLBF Description: Indicates line
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Include: Prototype: void clearerr(
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Include: Prototype: int feof(FILE
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Error indicator reset Standard C Li
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fpos_t pos; char buf[25]; if ((myfi
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Description: Opens a file. Include:
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Explanation: afile1must exist befor
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Arguments: s string to be written s
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10.0/2 = 5.000000 10.0/3 = 3.333333
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Explanation: This program uses myfi
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SEEK_CUR- seeks from the current po
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*pos if successful; otherwise, fset
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if ((myfile = fopen("afile.out", "r
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10.0/2 = 5.000000 10.0/3 = 3.333333
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Return Value: Returns the character
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Standard C Libraries with Math Func
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e, E doublein scientific notation f
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putchar Description: Put a characte
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Output: File renamed dsPIC ® Langu
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® Language Tools Libraries DS51456
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setbuf(myfile1, NULL); printf("myfi
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int main(void) { char sbuf[100], s[
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Include: Prototype: char *tmpnam(c
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ungetc (Continued) Standard C Libra
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va_list ap; va_start(ap, fmt); prin
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with operands of type long. Include
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i = -2; printf("The absolute value
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(int) strtol(s,0,10)except it does
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eturn 0; else return 1; } Output: S
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printf("For div(%d, %d)\n", x, y);
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free Description: Frees memory. Inc
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printf("The absolute value of %7ld
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is undefined. malloc Description: A
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with the key Remarks: qsortoverwrit
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object. If reallocsucceeds in alloc
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optional whitespace, followed by an
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® Language Tools Libraries DS51456
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Prototype: size_t wcstombs(char *s,
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characters in s2and returns a value
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printf("\n"); memcpy(buf1, buf3, 5)
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printf("\n"); printf("memset(\"%s\"
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printf("buf1 : %s\n\n", buf1); ptr
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uf3 : Why? buf2 comes before buf1 b
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str1, str2, res); res = strcspn(str
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(string length = 11 characters) str
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s2 second string n number of charac
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printf("buf1 : %s\n", buf1); printf
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contained in s2. Example: #include
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else printf("%c not found\n", ch2);
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printf("\"%s\" found at position %d
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Output: str1 : Here, on top of the
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MMMis month of the year ddis day of
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printf("Local time = %s\n", asctime
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Example: #include /* for strftime,
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(in magnitude) to be represented in
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Argument: x value between -1 and 1
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y = atan (x); printf("The arctangen
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if (errno) perror("Error"); printf(
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for (i=0; i
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} Output: The cosine of -1.000000 i
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Error: range error The hyperbolic c
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errno = 0; x = -1E3; y = exp (x); i
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y = fabs (x); printf("The absolute
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-2.0F, -1.75F, -1.5F, -1.25F}; floa
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x, y, z); errno = 0; x = 7.0; y = 0
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perror("Error"); printf("For fmodf
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Return Value: Returns the fraction,
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printf("For a number = %fand an exp
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ldexpf(-0.625000, 2) = -2.500000 Fo
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x, y); errno = 0; x = 0.0; y = log1
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NaN is returned if xis a negative n
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Arguments: x single precision float
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The sine of -1.000000 is -0.841471
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The hyperbolic sine of 0.000000 is
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Error: domain error The square root
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Return Value: Returns the tangent o
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x, y); } Output: The hyperbolic tan
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the calling process's data segment.
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eginning of the file. A return valu
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through the simulator. The return v
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uffer points to the storage locatio
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div.sd __builtin_divud Description:
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mul.uu dsPIC ® Language Tools Libr
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Return Value: Returns the psv page
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__builtin_mulus ...................
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arcsine Double Floating Point......
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Set Priority Macro.................
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isxdigit...........................
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String to Unsigned LongInteger ....
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DCT................................
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EnableIntlCx.......................
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Single Floating Point .............
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DBL_MAX_10_EXP ....................
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Single Floating Point..............
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tanhf .............................
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Set Capture Interrupt Priority ....
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ldiv_t ............................
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long long unsigned int Maximum Valu
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MatrixInvert ......................
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Single Floating Point..............
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system.............................
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Quick Sort ........................
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SEEK_SET...........................
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Minimum Value .....................
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va_arg ............................
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atoi ..............................
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strncpy ...........................
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Write..............................
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unsigned short int Maximum Value ..
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Zero, divide by....................
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