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config1 = (PWM_EN & PWM_PTSIDL_DIS & PWM_OP_SCALE16 & PWM_IPCLK_SCALE16 & PWM_MOD_UPDN); config2 = (PWM_MOD1_COMP & PWM_PDIS4H & PWM_PDIS3H & PWM_PDIS2H & PWM_PEN1H& PWM_PDIS4L & PWM_PDIS3L & PWM_PDIS2L & PWM_PEN1L); config3 = (PWM_SEVOPS1& PWM_OSYNC_PWM & PWM_UEN); OpenMCPWM(period,sptime,config1,config2,config3); while(1); } dsPIC Peripheral Libraries 2004 Microchip Technology Inc. DS51456B-page 183 3.17 I 2 C FUNCTIONS This section contains a list of individual functions for I 2 C module and an example of use of the functions. Functions may be implemented as macros. 3.17.1 Individual Functions CloseI2C Description: This function turns off theI 2 Cmodule Include: i2c.h Prototype: void CloseI2C(void); Arguments: None Return Value None Remarks: This function disables the I 2 Cmodule and clears the Master and Slave Interrupt Enable and Flag bits. Source File: CloseI2C.c Code Example: CloseI2C(); ConfigIntI2C Description: This function Configure the I 2 CInterrupt. Include: i2c.h Trở lại giá trị Không Ghi chú: Chức năng này sẽ ở trong trạng thái chờ đợi cho đến khi bắt đầu Điều kiện Kích hoạt bit, Stop Điều kiện Enable bit, Nhận Kích hoạt bit, Thừa nhận trình tự Bit cho phép của tôi 2 CControl đăng ký và Truyền Tình trạng bit tôi 2 CStatus đăng ký rõ ràng. Chức năng IdleI2C được yêu cầu kể từ khi phần cứng Tôi 2 Cperipheral không cho phép spooling của dãy xe buýt. I 2 C thiết bị ngoại vi phải ở trạng thái nhàn rỗi trước khi tôi 2 Coperation có thể được bắt đầu hoặc viết va chạm sẽ được tạo ra. Source File: IdleI2C.c Mã số Ví dụ: IdleI2C (); ConfigIntI2C (Tiếp theo) dsPIC Thư viện ngoại vi 2004 Microchip Technology Inc DS51456B trang 185 MastergetsI2C Mô tả: Chức năng này lần đọc dữ liệu định trước chuỗi dài từ tôi 2 Cbus. Bao gồm: i2c.h Prototype: unsigned int MastergetsI2C (unsigned int dài, unsigned char * rdptr, int i2c_data_wait); Đối số: chiều dài Số byte để đọc từ tôi 2 Cdevice. rdptr loại nhân vật con trỏ tới dsPIC ram cho lưu trữ dữ liệu đọc từ tôi 2 Cdevice i2c_data_wait Đây là số thời gian chờ cho các mô-đun có chờ đợi trước khi trở về.
Prototype: void ConfigIntI2C(unsigned int config); Arguments: config I 2 Cinterrupt priority and enable/disable information as defined below: I 2 Cmaster Interrupt enable/disable MI2C_INT_ON MI2C_INT_OFF I2C slave Interrupt enable/disable SI2C_INT_ON SI2C_INT_OFF I 2 Cmaster Interrupt priority MI2C_INT_PRI_7 MI2C_INT_PRI_6 MI2C_INT_PRI_5 MI2C_INT_PRI_4 MI2C_INT_PRI_3 MI2C_INT_PRI_2 MI2C_INT_PRI_1 MI2C_INT_PRI_0 I 2 Cslave Interrupt priority SI2C_INT_PRI_7 SI2C_INT_PRI_6 SI2C_INT_PRI_5 SI2C_INT_PRI_4 SI2C_INT_PRI_3 SI2C_INT_PRI_2 SI2C_INT_PRI_1 SI2C_INT_PRI_0 Return Value None dsPIC ® Language Tools Libraries Nếu tính thời gian chờ là 'N', thời gian chờ thực tế sẽ khoảng (20 * N - 1) chu kỳ hướng dẫn. Giá trị trả lại chức năng này trả về "0" nếu tất cả các byte đã được gửi hoặc số byte đọc từ tôi 2 Cbus nếu nó không thể đọc được dữ liệu có trong các quy định i2c_data_waittime ra giá trị Bình luận: thói quen này đọc một chuỗi dữ liệu được xác định trước từ I 2 Cbus. Source File: MastergetsI2C.c Mã số Ví dụ: unsigned char string [10]; unsigned char * rdptr; chiều dài int unsigned, i2c_data_wait; chiều dài = 9; rdptr = chuỗi; i2c_data_wait = 152; MastergetsI2C (chiều dài, rdptr, i2c_data_wait); MasterputsI2C Mô tả: Chức năng này được sử dụng để viết ra một chuỗi dữ liệu cho tôi 2 Cbus. Bao gồm: i2c.h Nguyên mẫu: int MasterputsI2C (unsigned char * wrptr); Đối số: wrptr loại nhân vật con trỏ đến các đối tượng dữ liệu trong dsPIC Ram. Các đối tượng dữ liệu được ghi vào tôi 2 Cdevice. Trở lại giá trị chức năng này trả về -3 nếu viết va chạm occurred.This trở về chức năng "0" nếu các ký tự null đã đạt được trong chuỗi dữ liệu. Bình luận: Chức năng này ghi một chuỗi các tôi 2 Cbus cho đến khi một nhân vật null đạt được. Mỗi byte được viết thông qua một cuộc gọi đến MasterputcI2C chức năng. Cơ thể calledfunction thực tế được gọi là MasterWriteI2C. MasterWriteI2Cand MasterputcI2Crefer để cùng chức năng thông qua một #definestatement trong i2c.h Source File: MasterputsI2C.c
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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
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fractional* delayBase ); Arguments:
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Source File: iircan.asm DSP Library
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srcSamps pointer to source samples
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} IIRTransposedStruct; extern fract
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no REPEATinstructions Program words
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Language Tools Libraries DS51456B-p
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for instance if: a = Op1 (b, c), wi
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and stores the results in the desti
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Description: DCTIPcomputes the Disc
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int log2N, fractcomplex* dstCV, fra
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fractcomplex* srcCV, fractcomplex*
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value can be calculated using the i
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A complex vector of size N/2 must h
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specific libraries. When compiling
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Control I/O pin definitions RW_PIN
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y calling the BusyXLCD()function. T
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COM1_COM16 COM16_COM1 Display On/Of
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Source File: CAN1AbortAll.c CAN2Abo
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char CAN2IsRXPassive(void); Argumen
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CAN2SendMessage Description: This f
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CAN2SetMask Description: This funct
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CAN_IDLE_CON_NO_WAITCAN On in Idle
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CAN_INDI_INVMESS_DIS CAN_INDI_WAK_D
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{ /* Length of data tobe transmitte
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Return Value: If the value of DONE
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dsPIC Peripheral Libraries 2004 Mic
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..... SKIP_SCAN_AN15 Return Value:
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DS51456B-page 100 3.5.2 Individual
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3.6 ADC10 FUNCTIONS This section co
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Module On/Off ADC_MODULE_ON ADC_MOD
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ADPCFG register as defined below: E
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ADC_CHX_NEG_SAMPLEB_AN6AN7AN8 ADC_C
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Scanselect = SKIP_SCAN_AN2 & SKIP_S
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dsPIC ® Language Tools Libraries D
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void OpenTimer4(unsigned int config
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Tx_SOURCE_EXT Tx_SOURCE_INT period
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3.7.2 Individual Macros WriteTimer2
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SetPriorityIntT4 SetPriorityIntT5 D
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Code Example: char reset_state; res
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Arguments: None Remarks: This macro
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stored into CNPU2 register. The upp
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SetPriorityInt2 SetPriorityInt3 Set
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IC_INT_PRIOR_3 IC_INT_PRIOR_4 IC_IN
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ReadCapture3 ReadCapture4 ReadCaptu
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void CloseOC4(void); void CloseOC5(
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Include: outcompare.h Prototype: vo
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Include: outcompare.h Prototype: un
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SetDCOC3PWM SetDCOC4PWM SetDCOC5PWM
Page 167 and 168: Code Example: pulse_start = 0x40 ;
Page 169 and 170: T3CON = 0x8000; T1CON = 0X8000; /*
Page 171 and 172: Transmit Interrupt Priority UART_TX
Page 173 and 174: UART_1STOPBIT config2 This contains
Page 175 and 176: Source File: WriteUART1.c WriteUART
Page 177 and 178: Code Example: EnableIntU2TX; Disabl
Page 179 and 180: ConfigIntUART1(UART_RX_INT_EN & UAR
Page 181 and 182: DCI_INT_PRI_4 DCI_INT_PRI_5 DCI_INT
Page 183 and 184: DCI_FRAME_LEN_15 DCI_FRAME_LEN_14 .
Page 185 and 186: Prototype: unsigned int ReadDCI(uns
Page 187 and 188: contents are sent duringthe timeslo
Page 189 and 190: SPI_INT_PRI_4 SPI_INT_PRI_5 SPI_INT
Page 191 and 192: Prototype: void WriteSPI1(unsigned
Page 193 and 194: Remarks: This functions initializes
Page 195 and 196: 2004 Microchip Technology Inc. DS51
Page 197 and 198: SEC_PRESCAL_7_1 & PRI_PRESCAL_64_1;
Page 199 and 200: enables/disables the interrupt. Sou
Page 201 and 202: QEI_QE_CLK_DIVIDE_1_32 QEI_QE_CLK_D
Page 203 and 204: } int main(void) { unsigned int max
Page 205 and 206: dsPIC ® Language Tools Libraries D
Page 207 and 208: PWM_PEN2H PWM_PDIS2H PWM_PEN1H PWM_
Page 209 and 210: PWM_POUT_1L Bit defines related to
Page 211 and 212: PWM_DTS3I_UA PWM_DTS3I_UB Dead Time
Page 213 and 214: PWM_OVA3H_INACTIVE PWM_OVA2H_INACTI
Page 215 and 216: Language Tools Libraries DS51456B-p
Page 217: #include #include void __attribute
Page 221 and 222: Arguments: None Return Value None R
Page 223 and 224: a #definestatement in the i2c.h Sou
Page 225 and 226: I2C_IDLE_CON SCL Release Control bi
Page 227 and 228: i2c_data_wait This is the timeout c
Page 229 and 230: 3.17.2 Individual Macros StartI2C D
Page 231 and 232: Arguments: None Remarks: This macro
Page 233 and 234: • src\libm- source code for math
Page 235 and 236: Remarks: The expression evaluates t
Page 237 and 238: if (isalpha(ch)) printf("# is alpha
Page 239 and 240: Remarks: A character is considered
Page 241 and 242: ch = '&'; if (isprint(ch)) printf("
Page 245 and 246: int ch; ch = 'B'; printf("B changes
Page 249 and 250: DBL_MIN_10_EXP Description: Minimum
Page 251 and 252: Include: Value: 1 Remarks: Rounds
Page 253 and 254: Description: Maximum value of a lon
Page 257 and 258: abort - terminating See the example
Page 261 and 262: } Output: Illegal instruction execu
Page 263 and 264: must be at least one named argument
Page 265 and 266: Include: Prototype: #define va_end
Page 267 and 268: 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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