ENC28J60+RC522 ，webserver与RFID共同使用问题。
本帖最后由 xvanzhou 于 2016-11-14 17:21 编辑我现在在尝试让ENC28J60 与RC522 同时使用，用SPI模式。但是始终不成功，只有RC522运行，web一直刷不出来。分开来是都是正常运行的。
源程序如下，RFID片选为4，enc28J60片选为10；
#include <EtherCard.h>
#include <SPI.h>
#include <MFRC522.h>
#define SS_PIN 4
#define RST_PIN 9
static byte mymac[] = { 0x74,0x69,0x69,0x2D,0x30,0x31 };
static byte myip[] = { 192,168,150,203 };
byte Ethernet::buffer;
BufferFiller bfill;
MFRC522 rfid(SS_PIN, RST_PIN); // Instance of the class
MFRC522::MIFARE_Key key;
// Init array that will store new NUID
byte nuidPICC;
void setup () {
if (ether.begin(sizeof Ethernet::buffer, mymac,10) == 0)
Serial.println(F("Failed to access Ethernet controller"));
ether.staticSetup(myip);
Serial.begin(9600);
SPI.begin(); // Init SPI bus
rfid.PCD_Init(); // Init MFRC522
for (byte i = 0; i < 6; i++) {
key.keyByte = 0xFF;
Serial.println(F("This code scan the MIFARE Classsic NUID."));
Serial.print(F("Using the following key:"));
printHex(key.keyByte, MFRC522::MF_KEY_SIZE);
}
pinMode (SS_PIN,OUTPUT);
digitalWrite (SS_PIN,HIGH);
pinMode (10,OUTPUT);
digitalWrite (10,HIGH);
}
static word homePage() {
long t = millis() / 1000;
word h = t / 3600;
byte m = (t / 60) % 60;
byte s = t % 60;
bfill = ether.tcpOffset();
bfill.emit_p(PSTR(
"HTTP/1.0 200 OK\r\n"
"Content-Type: text/html\r\n"
"Pragma: no-cache\r\n"
"\r\n"
"<meta http-equiv='refresh' content='1'/>"
"<title>RBBB server</title>"
"<h1>$D$D:$D$D:$D$D</h1>"),
h/10, h%10, m/10, m%10, s/10, s%10);
return bfill.position();
}
void loop () {
digitalWrite (10,LOW);
digitalWrite (SS_PIN,HIGH);
word len = ether.packetReceive();
word pos = ether.packetLoop(len);
if (pos)// check if valid tcp data is received
ether.httpServerReply(homePage()); // send web page data
delay (100);
//RFID部分
digitalWrite (10,HIGH);
digitalWrite (SS_PIN,LOW);
// Look for new cards
if ( ! rfid.PICC_IsNewCardPresent())
return;
// Verify if the NUID has been readed
if ( ! rfid.PICC_ReadCardSerial()) //先查到这里的库函数1
return;
Serial.print(F("PICC type: "));
MFRC522::PICC_Type piccType = rfid.PICC_GetType(rfid.uid.sak);
Serial.println(rfid.PICC_GetTypeName(piccType));
// Check is the PICC of Classic MIFARE type
if (piccType != MFRC522::PICC_TYPE_MIFARE_MINI &&
piccType != MFRC522::PICC_TYPE_MIFARE_1K &&
piccType != MFRC522::PICC_TYPE_MIFARE_4K) {
Serial.println(F("Your tag is not of type MIFARE Classic."));
return;
}
if (rfid.uid.uidByte != nuidPICC ||
rfid.uid.uidByte != nuidPICC ||
rfid.uid.uidByte != nuidPICC ||
rfid.uid.uidByte != nuidPICC ) {
Serial.println(F("A new card has been detected."));
// Store NUID into nuidPICC array
for (byte i = 0; i < 4; i++) {
nuidPICC = rfid.uid.uidByte;
delay (100);
}
Serial.println(F("The NUID tag is:"));
Serial.print(F("In hex: "));
printHex(rfid.uid.uidByte, rfid.uid.size);
Serial.println();
Serial.print(F("In dec: "));
printDec(rfid.uid.uidByte, rfid.uid.size);
Serial.println();
}
else Serial.println(F("Card read previously."));
// Halt PICC
rfid.PICC_HaltA();
delay (100);
// Stop encryption on PCD
rfid.PCD_StopCrypto1();
delay (100);
}
/**
* Helper routine to dump a byte array as hex values to Serial.
*/
void printHex(byte *buffer, byte bufferSize) {
for (byte i = 0; i < bufferSize; i++) {
Serial.print(buffer < 0x10 ? " 0" : " ");
Serial.print(buffer, HEX);
delay (100);
}
}
/**
* Helper routine to dump a byte array as dec values to Serial.
*/
void printDec(byte *buffer, byte bufferSize) {
for (byte i = 0; i < bufferSize; i++) {
Serial.print(buffer < 0x10 ? " 0" : " ");
Serial.print(buffer, DEC);
delay (100);
}
}
如上，确实已经片选置高置低了，怕是因为buffer的原因，也用了delay，但是还是没法同时运行。具体是什么情况？怎么解决，可QQ私聊，酬谢
QQ:305515099 困扰我很久了 真心烦死
今天再来试，发现我ping地址192.168.150.177 结果是192.168.150.180（主机地址）给我回复无法访问，这是个什么道理？如图3
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