收藏本站
Common Questions & Answers
For example:
#INCLUDE <16F877.h>
#DEVICE
ICD=TRUE
How do I wait only a specified time for a button press?
The following is an example of how to wait only a specific time for a button press.
#define PUSH_BUTTON PIN_A4
int1 timeout_error;
int1 timed_get_button_press(void){
int16 timeout;
timeout_error=FALSE;
timeout=0;
while(input(PUSH_BUTTON) && (++timeout<50000)) // 1/2 second
delay_us(10);
if(!input(PUSH_BUTTON))
return(TRUE); //button pressed
else{
timeout_error=TRUE;
return(FALSE); //button not pressed timeout occurred
}
}
How do I write variables to EEPROM that are not a byte?
The following is an example of how to read and write a floating point number from/to EEPROM.
The same concept may be used for structures, arrays or any other type.
?
?
?
n is an offset into the EEPROM.
For floats you must increment it by 4.
For example, if the first float is at 0, the second one should be at 4, and the third
at 8.
WRITE_FLOAT_EXT_EEPROM( long int n, float data) {
int i;
for (i = 0; i < 4 ; i++)
write_ ext_ eeprom(i + n, *(((int 8 *)&data + i) ) ;
}
float READ_FLOAT_EXT_EEPROM( long int n) {
int i;
float data;
for (i = 0; i < 4; i++)
*(((int 8 *)&data) + i) = read_ ext_ eeprom(i + n);
return(data);
}
How does one map a variable to an I/O port?
Two methods are as follows:
331
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
PCI-EXP-T42G5-N1 IP CORE PCI EXPRESS ORCA 4
PCM18XH2 PROCESSOR MODULE MPLAB-ICE 2000
PCM18XN0 PROCESSOR MODULE FOR ICE2000
PDA-B-24-615-E-2B1-1-C CIRCUIT BREAKER MAG 1P 15A
PFMF.260.2 PFMF PTC FUSE SMT 2.6A 1812
PFNF.200.2 PFNF PTC FUSE SMT 2A 1206
PFRY.375 PTC-FUSE RADIAL 72 VDC
PFSM.150.33.2 FUSE PTC 8A 15V FST-TRIP SMD
相关代理商/技术参数
PCD_09 制造商:MACOM 制造商全称:Tyco Electronics 功能描述:Low Profile PCB Relay PCD
PCD-00173-0C 制造商:Molex 功能描述:ETHERNET CABLE ASSEMBLY
PCD-00173-0E 制造商:Molex 功能描述:Ethernet Cable Assembly
PCD-00173-0H 制造商:Molex 功能描述:ETHERNET CABLE ASSEMBLY
PCD-00173-0K 制造商:Molex 功能描述:ETHERNET CABLE ASSEMBLY
PCD-00174-0C 制造商:Molex 功能描述:ETHERNET CABLE ASSEMBLY 制造商:Molex 功能描述:ETHERNET CABLE ASSEMBLY; Cable Length - Imperial:3ft; Cable Length - Metric:914.4mm; Connector Type A:RJ45 Plug; Connector Type B:RJ45 Plug; Jacket Color:Red; Approval Bodies:CSA / UL; Body Material:PVC; Cable Assembly Type:Ethernet ;RoHS Compliant: NA
PCD-00174-0E 制造商:Molex 功能描述:ETHERNET CABLE ASSEMBLY 制造商:Molex 功能描述:ETHERNET CABLE ASSEMBLY; Cable Length - Imperial:3ft; Cable Length - Metric:914.4mm; Connector Type A:RJ45 Plug; Connector Type B:RJ45 Plug; Jacket Color:Grey; Approval Bodies:CSA / UL; Body Material:PVC; Cable Assembly Type:Ethernet;RoHS Compliant: NA
PCD-00174-0H 制造商:Molex 功能描述:ETHERNET CABLE ASSEMBLY