怎么用PIC16F877A实现TSOP1738

什么样的适配器？它是线性电源还是开关模式？开关模式的电源通常不接负输出引脚，所以您的整个板都是浮动的。您的笔记本电脑是否永久连接到充电器？笔记本充电器可能有同样的问题，没有接地，所以整个笔记本电脑都在大约一半的电源电压下浮动。如果笔记本电脑的充电器断开，你也有同样的问题吗？从你的板卡到笔记本电脑上的接地点的分立接地有什么区别吗？（VGA端口的螺钉端子应该是合适的）。



以下为原文


What sort of an adaptor?
Is it a linear power supply, or a switch mode?
Switch mode supplies often do not ground the negative output pin, so your whole board is floating.

Also, is your laptop permanently connected to a charger?
Laptop chargers can have the same problem, no connection to ground, so the whole laptop is floating at about half the mains voltage.
Do you have the same problem if the laptop's charger is disconnected?

Does making a seperate ground connection from your board to a ground point on your laptop make any difference?
(A screw terminal for a VGA port should be suitable).

用于我的电路连接，并将我的代码发送到下面，包括：& lt；HTC.H.& Gt；Il.I.H.G.T；定义xTalthFlq 1200 000μA配置文件（0x3f3a）；空主（空）{TrISB0＝0；/RC2＝1；RB0＝0；IrIn（）；IrnEnable（）；而（1）{（IrlFlask.解码）{//重新启用IR接收IrEnEnable（）；}}}无效形象{IrimTimeOutOver（）；TMR1IF＝0；RBF（CCP1IF）{Cp1IF＝0；Irl中断（）；RB0^＝1；}空格IrIIn（空隙）{/*配置定时器1 *//OpenTimeR1（TimeReMeTimon and &；T1Y16BITYRW＆TAMP；T1SoSURCEION/AMP//T1PSPS1LY1和T1SoSuxCyCCP）；TrISC2＝1；GIE＝1；T1CON=中断ccp（）{if（tMR1IF）0x01；TMR1IF＝0；TMR1H＝T1yReLoad h；TMR1L＝T1yReLoad L；/*配置捕获单元*/CCP1CON= 0x04；CCP1IE＝1；CCP1IF＝0；/*配置中断*/TMR1IE＝1；PEI= 1；/*init数据*/IrSeReTeTo（）；



以下为原文

the image is for my circuit connection and send my code below
#include
#include
#define _XTAL_FREQ 12000000
__CONFIG(0x3F3A);

void main(void)
{
TRISB0 = 0;
//RC2=1;
RB0=0;

ir_init();
ir_enable();
while(1)
{
if (ir_flags.decoded)
{
// re-enable IR reception
ir_enable();
}
}
}

void interrupt ccp()
{
if(TMR1IF)
{
ir_timeout();
TMR1IF = 0;
RB0 ^=1;
}
if(CCP1IF)
{
CCP1IF = 0;
ir_interrupt();
RB0 ^=1;
}
}




void ir_init(void)
{
/* configure timer 1 */
//OpenTimer1(TIMER_INT_ON & T1_16BIT_RW & T1_SOURCE_INT &
//T1_PS_1_1 & T1_SOURCE_CCP);

TRISC2 = 1;
GIE = 1;

T1CON = 0x01;
TMR1IF = 0;
TMR1H = T1_RELOAD_H;
TMR1L = T1_RELOAD_L;
/* configure capture unit */
CCP1CON = 0x04;
CCP1IE = 1;
CCP1IF = 0;
/* configure interrupts */
TMR1IE = 1;
PEIE = 1;
/* init data */
ir_reset();
}
Attached Image(s)

所以你忽略了我所有关于接地的问题…



以下为原文

So you ignored all my questions about grounding...

HyalAlnor，感谢张贴代码；但是，代码不完整。我看不到代码中定义了一些例程，头文件不包括在内，最后，您显示的图像是微芯片图像，上面有水印，所以我发现很难成为您的确切电路。是问题吗？当其他论坛成员试图帮助你时，回答他们的问题总是很有品位，即使你不确定。当我们请求信息时，你给予的帮助越多，你得到的帮助就越好。您的代码在任何地方都没有注释，那么应该如何让任何人知道您想要完成什么呢？评论你的代码是很好的做法，这样别人就可以跟上。我要求在开发板上提供信息，但我只得到一些带有另一个板的开发板的图像。这真的没多大用处。了解开发板的零件编号以及所附的任何相关板将有助于跟踪可能与该板相关的任何潜在问题。我还要求一个示意图，没有包括在内。同样，知道电路在做什么和知道代码在做什么一样重要。通常，常见的错误很容易被忽略，这就是为什么让别人看一看可能是有益的。你说你使用的是PictI2，这是微芯片不再支持的。你试过皮卡3，或者其他程序员/调试器吗？我将再次请求完整的源代码，可以作为附件添加。我还要求您的电路原理图，请不要发送一个开发板的股票图像。也请将注释添加到代码中，或者包含一个读取ME类型的文件来解释代码所期望的内容。最后，请看海报QHB的问题，并尽可能地回答它们。谢谢，克里斯。



以下为原文

Hi al_noor,

Thanks for posting code; however, the code is not complete. There are routines defined in the code that I don't see, header files that are not included, and finally, the image you show is a Microchip image - it has the watermark on it - so I find that hard to be your exact circuit.

Another poster asked a question about your power supply; have you addressed his questions? When other forum members are trying to assist you, it is always in good taste to answer their questions, even if you are not sure. When we are requesting information, the more you give the better assistance you receive. Your code has no comments anywhere, so how is anyone supposed to know what you are trying to accomplish? It is good practice to comment your code so that others can follow along. I asked for information on the development board, but I only got an image of some development board with another board attached. This really isn't helping much. Knowing the development board part number, and any associated boards attached, will help track down any potential issues that may be associated with the board. I also asked for a schematic, and none was included. Again, knowing what the circuit is doing is just as important as knowing what the code is doing. Often, common mistakes can easily be overlooked, which is why having someone else take a look can be beneficial.

You stated you are using the PICkit2, which Microchip no longer supports. Have you tried the PICkit 3, or any other programmer/debugger?

I will kindly ask again for FULL SOURCE CODE, which can be added as an attachment. I also ask for a schematic of your circuit, please don't send a stock image of a development board. Please also either add comments to your code, or include a read-me type of file that explains what you expect your code to do. Finally, please take a look at poster qhb's questions, and answer them as best as you can.

Thanks,
Chris

这个论坛对上传到论坛的所有图片都是这样做的。



以下为原文


This forum does that to all images uploaded onto the forum.

对不起@ cBEST…根据你的建议，我已经从电源上拔出了我的笔记本电脑充电器。



以下为原文

sorry @cbest... as your suggestion i have unpluged my laptop charger from power supply..

还有？我不会屏息以待任何进一步的帮助，你没有回答任何问题或提供示意图和图片。



以下为原文

and?

I wouldnt hold your breath for any further assistance, you havent answered any questions or provided schematics and pictures.

上面的ZIP是我开发板的原理图！我的完整代码是Belovi.C Hy.H.＆G.A.I.H.＆Gt；定义NixTimeOUT 150 /*FoC/ 4＝＝12/4＝3MH**/*定义NexFixSt*Max 110 /*t＝1 /f=＝1 /3MHZ＝0.33μ*/*定义NECYFILSTSTYMIN 102 /*1000 /0.33 US＝3030.3030303030 */*定义9NMS＝（9×3030.3030）的NoxIdixMax 51／*时间303030）/ 256＝106.53 */*定义n+2×43 /*时间集合，精度为+-25% */*定义NexExthixMax 16 /*，使得FixSTyMax＝116 */*定义NexExthumin min 10 /*和FixStMIN＝110 */*定义NexLangyMax 29定义NICHYLULYMIN 23 IrA FrassIt IrFLAG；NECUT NEC；Irt t IR；空隙NECUD译码（{ if（irlFlask.1）{NEC.Frase.WRAW＝0；NEC.FLAWS第一个＝1；NEC.BITCOUNT＝0；NEC.DATA＝0；返回；}（NEC。FLAG。无效）返回；if（NEC。旗标。最后）{if（irlFlas.TimeOut.CcPR1h & gt；NECUTIMEOUT）{//有效NEC！{ Ir.FraveScRead＝1；} { NEC.FLAGESTATION＝1；}返回（{NEC.FLAG。第一）{if（CCPR1H & lt；NECUA First Sth & Gt；NECURFirSTYMAX）{NEC.FLAGESTATION＝1；}否则{NEC.FLAG.First＝0；NEC.FLAGER。第二＝1；}返回；}（NEC，FLAG，第二）{if（CPR1H & lt；NECUTIXAXMIN）CPR1{NEC.Plasulax MAX）{NEC.FLAGESTATION＝1；} {NEC.FLAG。第二＝0；NEC.FLAG。脉冲＝1；}返回；}（CCPR1H & lt；NECH StullMIN）{NEC.FLAGER无效＝1；返回；}（NEC。Fig.Pulk）{if（CCPR1H & Gt；NECUTHORYMAX MAX）{NEC.FLAGER无效= 1；返回；} .Fr.Frase= 0；如果（NEC.BITCO）In＝32（{No.16.0t）（NE.DATA和0xFFFF）；IF（（地址和放大器；0xFF）＝=（~r.Addio.Gt；；8））{I.Type＝IrnNEC；Ir地址和AMP＝0xFF；} {I.Type＝IrnEngRelax；} .IrrCube＝（Unt8It）（NE.DATA & G.＆G.；24）；Ir额外＝0；NE.FLAG。最后＝1；}返回；} .N旗。S.脉冲＝1；如果（CCPR1H & Gt；NECH LangyMax）{Ne.Fig.Fase= NEC.DATA和GT；1；如果（CCPR1H & Gt；= NECH Lang-Mymin）{NEC.DATA＝0x8000；} NEC。BITCOUNT ++；}无效IrTimeOutOutt（空隙）{IrFlas.TimeOut= 1；/*停止定时器1 */T1CON＝0；/*解码我们得到的！（Ir.FLAG，解码）{ /*等待调用方重新启用接收*/ILI DISABLE（）；}*//*重置捕获边*/CCP1CON= 0x04；CCP1IE＝1；CIP1IF＝0；IrFLAG.EDGE＝0；ILYRESETE（）；}无效IL禁用（空隙）{CCP1IE＝0；T1CON＝0；}/** Irl中断：此函数必须当捕获中断*发生时调用。* /空格Irl中断（空隙）{/*重载定时器1 */TMR1H＝T1ReLoad Load H；TMR1L＝T1yReLoad Load；/*改变边*/IF（IrFLAG.EDGE）{CCP1CON= 0x04；/ /捕获每一个下降沿CCP1IE＝1；CCP1IF＝0；IrFLAFEST.EDGE＝0；} {CCP1Con＝0x05；/ /对每一个上升沿CCP1IE＝1捕获；CCP1IF＝1；0；IrFLAFESS.EDGE＝1；}（IrFLAG。第一）{/*这是第一个边。T1CON＝1；NixCuffDE（；）；IrFLAG；第一个＝0；返回；} Irl InIt（空隙）{/*配置计时器1 *///OpenTime1（TimeReTim-In on and &；T1Y16BITYLRW；和T1SoReSkyIn and //T1OPSPS1L1和& T1源代码CCP）；TrISC2＝1；GIE＝1；T1CONN＝0x01；TMR1IF＝0；TMR1H＝T1YReLoad启动计时器1*/H；TMR1L= T1YReLoad Load；/*配置捕获单元*/CCP1CON= 0x04；CCP1IF＝0；/*配置中断*/TMR1IE＝1；PEI=数据1；/*init数据*/ILRESRET（）；} IrError Read（空隙）{IrFraveSt=＝0；IrFras.TimeOUT＝0；IrFraveStase= 1；}/** IrLabel:启用IR接收/空隙IrEnENAILL Fr.ScRead（）；Ir.FraveScRead＝0；} H.H文件.TyDIF.EnUM {IrnNEC，IrnEngRelax } IryType t；TyBuffFStult{Union {Stult{un签署无效：1；无符号第一：1；无符号第二：1；无符号脉冲：1；}；UTI88T原始；}标志；UTI88T BITCNoTyt；UntInt3t数据；TyPulfEngult{Stult{无符号第一：1；无符号超时：1；未签名的解码：1；}；UTI88T原始；} IyrFrassSt；TyPulfFrase{IryType Type类型；UIT88T命令；UTIN 16t T地址；UIT88T额外；；外部无效IRE重置（空缺）；外部无效ILT超时（无效）；外部无效（无效）；外部无效Irl中断（无效）；外部定义IlFLAG（ILL）标志；*定义T1yRead Load H 0定义定义T1yReLoad Lo.0Mc.c文件包含和lt；HTC.H＆Gt；（空）{TrISB0＝0；/r0＝0；iReNeNable（）；而（1）{if（IrFLAG，译码）{{//重新启用IR接收IrEnEnable（）；}}}空隙中断ccp（）{if（tMR1IF）{IyTimeOutOUTE（））；TMR1IF＝0；RB0^＝1；}（CCP1IF）{CCP1IF＝0；Irl中断（）；RB0^＝1；}空-主配置（0x3f3a）；



以下为原文

the above zip is my development board schematic! and my complete code is below


ir.c fiile

#include
#include
#define NEC_TIMEOUT 150 /* fosc/4=== 12/4=3Mhz */
#define NEC_FIRST_MAX 110 /* T=1/f=== 1/3Mhz= 0.33us*/
#define NEC_FIRST_MIN 102 /* 1000/0.33us =3030.3030303030*/
#define NEC_SECOND_MAX 51 /* time for 9ms=(9*3030.3030303030)/256=106.53*/
#define NEC_SECOND_MIN 43 /* time set with the accuracy of +-25%*/
#define NEC_SHORT_MAX 16 /* so that the value of FIRST_MAX=116*/
#define NEC_SHORT_MIN 10 /* and FIRST_MIN = 110*/
#define NEC_LONG_MAX 29
#define NEC_LONG_MIN 23
ir_flags_t ir_flags;
nec_t nec;
ir_t ir;
void nec_decode(void)
{
if (ir_flags.first) {
nec.flags.raw = 0;
nec.flags.first = 1;
nec.bitcount = 0;
nec.data = 0;
return;
}
if (nec.flags.invalid)
return;
if (nec.flags.last) {
if (ir_flags.timeout || CCPR1H > NEC_TIMEOUT) {
// valid NEC !
ir_flags.decoded = 1;
} else {
nec.flags.invalid = 1;
}
return;
}
if (nec.flags.first) {
if (CCPR1H < NEC_FIRST_MIN || CCPR1H > NEC_FIRST_MAX) {
nec.flags.invalid = 1;
} else {
nec.flags.first = 0;
nec.flags.second = 1;
}
return;
}
if (nec.flags.second) {
if (CCPR1H < NEC_SECOND_MIN || CCPR1H > NEC_SECOND_MAX) {
nec.flags.invalid = 1;
} else {
nec.flags.second = 0;
nec.flags.pulse = 1;
}
return;
}
if (CCPR1H < NEC_SHORT_MIN) {
nec.flags.invalid = 1;
return;
}
if (nec.flags.pulse) {
if (CCPR1H > NEC_SHORT_MAX) {
nec.flags.invalid = 1;
return;
}
nec.flags.pulse = 0;
if (nec.bitcount == 32) {
ir.address = (uint16_t)(nec.data & 0xffff);
if ((ir.address & 0xff) == (~ir.address >> 8)) {
ir.type = IR_NEC;
ir.address &= 0xff;
} else {
ir.type = IR_NEC_EXTENDED;
}
ir.command = (uint8_t)(nec.data >> 24);
ir.extra = 0;
nec.flags.last = 1;
}
return;
}
nec.flags.pulse = 1;
if (CCPR1H > NEC_LONG_MAX) {
nec.flags.invalid = 1;
return;
}
nec.data = nec.data >> 1;
if (CCPR1H >= NEC_LONG_MIN) {
nec.data |= 0x80000000;
}
nec.bitcount++;
}
void ir_timeout(void)
{
ir_flags.timeout = 1;
/* stop timer 1 */
T1CON = 0;
/* decode what we got ! */
nec_decode();
if (ir_flags.decoded)
{
/* wait for the caller to re-enable reception */
ir_disable();
} /*else {
nop();
}*/
/* reset capture edge */
CCP1CON=0x04;
CCP1IE=1;
CCP1IF=0;
ir_flags.edge = 0;
ir_reset();
}
void ir_disable(void)
{
CCP1IE = 0;
T1CON = 0;
}
/*
* ir_interrupt : this function must be called when the capture interrupt
* occurs.
*/
void ir_interrupt(void)
{
/* reload timer 1 */
TMR1H = T1_RELOAD_H;
TMR1L = T1_RELOAD_L;
/* change edge */
if (ir_flags.edge)
{
CCP1CON = 0x04; // capture for every falling edge
CCP1IE =1;
CCP1IF = 0;
ir_flags.edge = 0;
} else
{
CCP1CON = 0x05; // capture for every rising edge
CCP1IE =1;
CCP1IF = 0;
ir_flags.edge = 1;
}
if (ir_flags.first)
{
/* This is the first edge. Start timer1 */
T1CON = 1;
nec_decode();
ir_flags.first = 0;
return;
}
nec_decode();
}

void ir_init(void)
{
/* configure timer 1 */
//OpenTimer1(TIMER_INT_ON & T1_16BIT_RW & T1_SOURCE_INT &
//T1_PS_1_1 & T1_SOURCE_CCP);

TRISC2 = 1;
GIE = 1;

T1CON = 0x01;
TMR1IF = 0;
TMR1H = T1_RELOAD_H;
TMR1L = T1_RELOAD_L;
/* configure capture unit */
CCP1CON = 0x04;
CCP1IE = 1;
CCP1IF = 0;
/* configure interrupts */
TMR1IE = 1;
PEIE = 1;
/* init data */
ir_reset();
}
void ir_reset(void)
{
ir_flags.edge = 0;
ir_flags.timeout = 0;
ir_flags.first = 1;
}
/*
* ir_enable : enable ir reception
*/
void ir_enable(void)
{
ir_reset();
ir_flags.decoded = 0;
}


ir.h file
#include
typedef enum
{
IR_NEC,
IR_NEC_EXTENDED
} ir_type_t;
typedef struct {
union {
struct
{
unsigned invalid :1;
unsigned last :1;
unsigned first :1;
unsigned second :1;
unsigned pulse :1;
};
uint8_t raw;
} flags;
uint8_t bitcount;
uint32_t data;
} nec_t;
typedef union {
struct {
unsigned first :1;
unsigned edge :1;
unsigned timeout :1;
unsigned decoded :1;
};
uint8_t raw;
} ir_flags_t;
typedef struct {
ir_type_t type;
uint8_t command;
uint16_t address;
uint8_t extra;
} ir_t;
extern void nec_decode(void);
extern void ir_init(void);
extern void ir_reset(void);
extern void ir_timeout(void);
extern void ir_enable(void);
extern void ir_disable(void);
extern void ir_interrupt(void);
extern ir_flags_t ir_flags;
#define T1_RELOAD_H 0
#define T1_RELOAD_L 0


main.c file

#include
#include
#define _XTAL_FREQ 12000000
__CONFIG(0x3F3A);

void main(void)
{
TRISB0 = 0;
//RC2=1;
RB0=0;

ir_init();
ir_enable();
while(1)
{
if (ir_flags.decoded)
{
// re-enable IR reception
ir_enable();
}
}
}

void interrupt ccp()
{
if(TMR1IF)
{
ir_timeout();
TMR1IF = 0;
RB0 ^=1;
}
if(CCP1IF)
{
CCP1IF = 0;
ir_interrupt();
RB0 ^=1;
}
}


Attachment(s)

pic_dev_brd_schematic.zip (62.72 KB) - downloaded 45 times

我不想看起来迂腐，但你给我们的是你的开发板的示意图。你没有给我们展示你的联系。例如，在RB0上的LED，我们只能假设你已经建立了正确的连接。为了移动这一点，你的原始帖子谈到了接收任何旧的IR数据并在发生时闪亮一个LED。不幸的是，LED是闪烁的时候，它不应该。所以，你所显示的代码要复杂得多，代码试图解码数据等，以解决您的问题，攻击项目分阶段。首先，去掉所有的代码，删除它，评论它，无论什么。你所需要的只是简单的几个。线路，看到IR输入的电平变化&中断-闪光灯。然后做电源/接地测试，LED是否闪烁。调查……然后在阶段中添加越来越多的复杂代码，随时随地添加功能。在每一个阶段都要进行测试，最终要么是工作代码，要么是问题所在。



以下为原文

I dont want to seem pedantic, but what you have sent us, is the schematic of your development board.

You do not show us the connections you have made on it. The LED on RB0 for example, we can only assume that you have made the right connections.

In the interests of moving this on, your original post talks about receiving any old IR data and flashing a led when it happens. Unfortunately the led was flashing when it shouldnt be.

So, the code you show is far more complicated than that, the code attempts to decode the data etc etc.

To solve your issue, attack the project in stages.

First, strip away all the code, delete it, comment it, whatever.

All you need is a simple few lines, see a level change on the IR input -> interrupt -> flash the led.

Then do your power/ground tests, does the led flash when it shouldnt. Investigate...

Then add more and more complex code in stages, adding functionality as you go. Keep testing at each stage.

You'll either end up with working code, or an idea of where the issue is.

+1解决一个问题一次，它应该是容易的。



以下为原文


+1
Solve one problem at a time, and it should be easy.

{0= 0；GIE＝0；01；TMR1IF＝0；TMR1Con＝0x04；CCP1IE＝1；CCP1IF＝0；而（1）；{if（RC2=＝0）{RB0= ~RB0；γ-DelayyMs（500）；} }空隙中断ccp（）{if（TMR1IF）TMR1IF＝Y；if（CCP1IF）CCP1IF＝γ；}我也与上面的程序一起工作，但出现相同的问题。空主（）{TrISC2＝1；TrISB0＝0；//RC2＝1；我已经把我的电路图的方块图像发送出去了……今天我的pickit2程序员又遇到了新问题。我的编译器说没有找到pickit2，我试过用我的pickit2程序员和我的朋友在笔记本电脑上也说过同样的话。然后我买了新的pickit2芯片(pic18f2550)，用旧的pickit2替换，但是没有用处。谁能告诉我pic微控制器不需要像pickit2，pickit3这样的程序员来编程。片上可编程微控制器。如果不是程序员更好的编程PIC微控制器…



以下为原文

void main()
{
TRISC2=1;
TRISB0=0;
//RC2=1;
RB0=0;
GIE=1;
PEIE=1;
T1CON=0x01;
TMR1IF=0;
TMR1IE=1;
CCP1CON=0x04;
CCP1IE=1;
CCP1IF=0;
while(1);
{
if(RC2==0)
{
RB0=~RB0;
__delay_ms(500);
}
}
}
void interrupt ccp()
{
if(TMR1IF)
TMR1IF=0;
if(CCP1IF)
CCP1IF=0;
}



i also worked with above program but the same issues appear.. and i have sent the block image of my circuit diagram....



today itself i got new issues in my pickit2 programmer. my complier said that the pickit2 not found, i tried my pickit2 programmer with my friends laptop there also said the same.. then i got new pickit2 ic(pic18f2550)
and replace with old one in my pickit2 but there is no use in replacing the IC.

can anyone let me know the pic microcontroller which is no need of programmer like pickit2,pickit3 for program.. on chip programmer availabled micro controller. if not what programmer is better for programming the pic micro controller...

Attached Image(s)

这就是整个计划吗？包含和lt；xc.h & gt；还是配置语句？你真的有VDD连接到RD4吗？PIC上的两个VDD引脚如何？PIC上的两个接脚怎么办？PIC还需要在RB3/PGM上下拉以进行可靠的编程。PK2内部的PIC必须用PK2固件编程。一个空白的不能工作，没有一个。他们都需要一个外部程序员。PK2应该是好的，但看起来你已经炸毁了你的。PK3是一个廉价的替代品。



以下为原文


Is that the whole program?
Where is the include
or the config statements?


Do you really have Vdd connected to RD4?
What about the two Vdd pins on the PIC?
What about the two ground pins on the PIC?
That PIC also requires a pulldown on RB3/PGM for reliable programming.


The PIC inside the PK2 has to be programmed with the PK2 firmware. A blank one won't work.


There isn't one. They all require an external programmer.


A PK2 should be fine, but it appears you have blown yours up.
A PK3 is an inexpensive alternative.

1、我在程序中包括了头文件和配置位，但是我已经把主要功能和ISR……发送给你了。是的，我连接了VDD到RD4，调试器模式只能在连接到VDD 3的RD4之后启用。PIC单片机中的两个VDD引脚由+5V供电，它已经在我的开发板中设计，同样用于接地引脚。4。RB3/PGM（下拉）=用于LVP禁用？？？？？？？如果是LVP禁用。在程序5中，我在配置位中禁用了它。是否有可能修复我的PACTIT2程序员固件？6建议我一个更好的集成电路，而不是PIC16F87低成本…



以下为原文

1.i included the header file and configuration bits in my program but i have sent you the main function and the ISR....

2.yes i did connection VDD to RD4, debugger mode enable only after the RD4 connected to the VDD.

3. two VDD pins in the pic microcontroller are powered up by +5v it already designed in my development board and same for ground pin too.

4.RB3/PGM(pull down)= is that for LVP disable????? if it is for the LVP disable. i disabled it in my configuration bits in program.


5. is there any possible for repair my pickit2 programmer firmware.

6.suggest me a better IC instead of PIC16F887 in low cost...

这就是为什么我们需要你的电路图。你在哪里读到关于RD4和调试？



以下为原文

This is why we needed your circuit diagram.

Where did you read about RD4 and debug?

你只是浪费时间发布你认为重要的东西。最安全的方法是发布整个文件，所以没有剩下的猜测了。嗯？那是垃圾文件，为什么没有显示在你的框图上呢？这是电路中非常重要的部分，应该在那儿。在Vdd和Vss引脚之间有旁路电容器连接吗？你应该，而且它们应该出现在你的示意图上。PIC的Vdd pin s连接到PICkit的Vdd pin吗？应该是的。但是配置位在成功地编程PIC之后才生效。当芯片被擦除时启用LVP。根据这里的经验，您确实需要将引脚拉低以便进行可靠的编程。要编写新的PIC，您将需要另一个专业人员grammer。40针PIC116F1xxxxx芯片中的大多数价格相同或更便宜，并且功能更强，例如PIC16F1787。



以下为原文


You're wasting time by only posting what YOU think is important.
The safest approach is to post the entire file, so there's nothing left to guesswork.


Huh? That's rubbish


So why isn't it shown on your block diagram?
That is a very important part of the circuit, and SHOULD be there.
Do you have any bypass capacitors connected between the Vdd and Vss pins?
You should, and they should appear on your schematic.
Are the PIC's Vdd pins connected to the PICkit's Vdd pin? They should be.


But the configuration bits don't take effect until AFTER you have succesfully programmed the PIC.
LVP is enabled when the chip is erased.
I am speaking from experience here, you DO need that pin to be pulled low for reliable programming.


To program the new PIC, you will need another programmer. i.e. a seperate PK2, PK3, or ICD3.


Most of the 40 pin PIC116F1xxx chips are the same or cheaper price, and much more capable.
e.g. PIC16F1787

感谢qhb和BMD对此的帮助。不幸的是，正如我在第一篇文章中提到的，PICkit2不再被微芯片支持。最便宜的替代品是PICTIT3。正如我也提到的，877A不推荐用于新的设计，并且如qhb所述，有更好、更便宜的替代品。事实上，如果你打算使用最新的设备，你可能会买一个好奇开发板，要么是原来的（最多20个引脚设备），要么是高引脚计数（HPC）版本（28或40个引脚设备），它带有内置的程序员/调试器。最初的好奇心板在DigiKy售价为20美元，对于PICTIT3来说是50美元。好奇板只适用于MPLABX，所以你也应该向前移动，并开始使用MPLABX。你可以在其中一块板上完成所有的工作，而且MPLABX也有代码配置器，所以编写代码应该非常简单。这应该有很大帮助。此外，BMD建议将代码分解为最简单的形式。这是很好的信息，当故障解决，甚至启动一个项目。通常，我的客户会编写非常长和复杂的代码，然后无法确定哪里有bug。当你开始按模块开始时，你可以很容易地跟踪行为的任何变化。例如，如果我有一个客户在设备上有问题，我必须对其进行测试，那么我做的第一件事就是编写Configuration Words并启用CLKOUT。这样，我知道如果CKOUT工作，我的振荡器也工作。如果客户说引脚的PWM输出不工作，接下来要做的是添加引脚切换例程。如果引脚不切换，那么很可能不是PWM不工作，而是引脚本身的问题。保持这种简单的方式在短期内可能需要更长的时间，但是与其浪费时间测试PWM模块，我立即发现引脚坏了，从长远来看节省了我很多时间。



以下为原文

Thanks qhb and BMD for your assistance with this.

Al_noor,

Unfortunately, as I mentioned in my very first post, the PICkit2 is no longer supported by Microchip. The least expensive replacement would be the PICkit3. As I also mentioned, the 877A is not recommended for new designs, and as qhb stated, there are better, cheaper alternatives. In fact, if you were to use a more recent device, you could probably buy a Curiosity Development board, either the original (for up to 20 pin devices), or the high pin count (HPC) version (for 28 or 40 pin devices), which comes with a built-in programmer/debugger. The original Curiosity board is $20 USD at Digikey vs $50 USD for the PICkit3. The Curiosity board only works with MPLABX, so you should also move forward and start using MPLABX. You can do all of your work on one of these boards, and MPLABX has the Code Configurator as well, so writing the code should be very simple.

So please, take my advice, and get a better device with a better programmer and use a better IDE. That should help greatly. Also, BMD suggested breaking down your code to the most simple form. This is excellent information when trouble shooting, or even starting a project. Often, I have customers that write extremely long and complicated code, then can't figure out where there bug is. When you start basically module by module, you can easily track any changes in behavior. For example, if I have a customer who has problems with a device and I have to test it, the first thing I do is write the Configuration Words and enable CLKOUT. This way I know that if the CLKOUT is working, my oscillator is also working. If the customer says that the PWM output of a pin isn't working, the next thing I do is add a pin toggle routine. If the pin doesn't toggle, then it is likely not the PWM not working, but a problem with the pin itself. Keeping things this simple might take a bit longer in the short term, but instead of wasting time testing the PWM module, I found immediately that the pin was broken, saving me a lot of time in the long run.

Thanks,
Chris

谢谢大***贵的时间。现在我打算订购40引脚微控制器（PIC16F1XXX）系列的好奇心发展。所有的40针控制器在中等范围的家庭支持在单一的BARAD？不是吗？因为现在我有开发板，它只支持877 /877 A本身。



以下为原文

Thank you all for your valuable time.. now i am going to order curiosity development for 40 pin micro controller(Pic 16F1XXX)series.. is all the 40 pin controller in mid range family support in single borad ?isnt it? because now i have the development board which only support for 877/877A itself.