Jacob Briede
Takes memory from a Nucleo NFC01A1 and sends it via I2C.
Dependencies: mbed NUCLEO-NFC01A1 lib_NFC_M24SR lib_NFC_NDEF
Revision 0:bd569d022b29, committed 2015-08-10
- Comitter:
- jbriede
- Date:
- Mon Aug 10 15:01:38 2015 +0000
- Commit message:
- This program reads the memory from a Nucleo NFC01A1 and sends it via I2C.
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/I2C_Lib.bld Mon Aug 10 15:01:38 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/cbbeb26dbd92 \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/NUCLEO-NFC01A1.lib Mon Aug 10 15:01:38 2015 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/teams/ST-Americas-mbed-Team/code/NUCLEO-NFC01A1/#0528e68eac4a
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/lib_NFC_M24SR.lib Mon Aug 10 15:01:38 2015 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/teams/ST-Americas-mbed-Team/code/lib_NFC_M24SR/#ffc2448b65ef
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/lib_NFC_NDEF.lib Mon Aug 10 15:01:38 2015 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/teams/ST-Americas-mbed-Team/code/lib_NFC_NDEF/#3b093bd0819e
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Mon Aug 10 15:01:38 2015 +0000
@@ -0,0 +1,115 @@
+// header
+#include "mbed.h"
+#include "lib_TagType4.h"
+#include "lib_NDEF.h"
+#include "I2C.h"
+#define BITSIZE 100
+#define MAXMEMORY 8190 //pretty sure....
+
+Serial pc(SERIAL_TX, SERIAL_RX);
+
+ I2C isquaredc(D14,D15); // I2C pins are D14 and D15
+
+DigitalOut myled(LED1);
+//various LEDs on NFC Shield
+DigitalOut nfcled1(D5);
+DigitalOut nfcled2(D4);
+DigitalOut nfcled3(D2);
+//acknowledgement pins
+DigitalOut indicatorM2S(D13);
+DigitalIn indicatorS2M(D10);
+DigitalIn NFC_Written(D12);
+
+int main() {
+ // Create NDEF buffer
+ uint8_t NDEF_Buffer[BITSIZE], Zero_Buffer[MAXMEMORY];
+ memset(NDEF_Buffer, 0, sizeof(NDEF_Buffer));
+ memset(Zero_Buffer, 0, sizeof(Zero_Buffer)); // will not change
+
+ // start up info... the following code is necessary to read the NFC shield
+ sCCFileInfo CCFileStruct;
+ sCCFileInfo *pCCFile;
+ pCCFile = &CCFileStruct;
+
+ uint16_t status = SUCCESS;
+ uint8_t CCBuffer[15];
+
+ status = TagT4Init( CCBuffer, sizeof(CCBuffer));
+
+ if( status == SUCCESS)
+ {
+ pCCFile->NumberCCByte = (uint16_t) ((CCBuffer[0x00]<<8) | CCBuffer[0x01]);
+ pCCFile->Version = CCBuffer[0x02];
+ pCCFile->MaxReadByte = (uint16_t) ((CCBuffer[0x03]<<8) | CCBuffer[0x04]);
+ pCCFile->MaxWriteByte = (uint16_t) ((CCBuffer[0x05]<<8) | CCBuffer[0x06]);
+ pCCFile->TField = CCBuffer[0x07];
+ pCCFile->LField = CCBuffer[0x08];
+ pCCFile->FileID = (uint16_t) ((CCBuffer[0x09]<<8) | CCBuffer[0x0A]);
+ pCCFile->NDEFFileMaxSize = (uint16_t) ((CCBuffer[0x0B]<<8) | CCBuffer[0x0C]);
+ pCCFile->ReadAccess = CCBuffer[0x0D];
+ pCCFile->WriteAccess = CCBuffer[0x0E];
+ }
+
+ // open NDEF session
+ OpenNDEFSession(pCCFile->FileID, ASK_FOR_SESSION);
+
+ // write all zeros to NDEF memory
+ NDEF_WriteNDEF(Zero_Buffer);
+
+ // close NDEF session
+ CloseNDEFSession(pCCFile->FileID);
+
+ // creat while loop
+
+
+ indicatorM2S = 0;
+
+ pc.printf("init \n");
+ while(1) {
+ if (NFC_Written==0) {
+ pc.printf("session\n");
+ wait(4);
+ //open NDEF session
+ OpenNDEFSession(pCCFile->FileID, ASK_FOR_SESSION);
+
+ // read NDEF
+ NDEF_ReadNDEF(NDEF_Buffer);
+
+ // close NDEF session
+ CloseNDEFSession(pCCFile->FileID);
+
+
+ // if NDEF is not all 0s, take the store memory in variable
+ if ((memcmp(Zero_Buffer, NDEF_Buffer, sizeof(NDEF_Buffer)))!=0){
+
+ pc.printf("Tag Identified...\n");
+
+ indicatorM2S = 1; // Master indicates to slave that there is a message waiting
+
+ pc.printf("M2S set HIGH...\n");
+
+ char send[BITSIZE]; // converting to char in order to send via i2c
+ memcpy(send, NDEF_Buffer, BITSIZE);
+
+ while(1){ // waiting for slave to indicate it is ready to receive message
+ if (indicatorS2M.read() == 1)
+
+ break;
+ // probably should add some type of time out function
+ }
+ pc.printf("S2M awknowledgement recieved...\n");
+ //Send data via I2C
+ isquaredc.write(0x10, send, BITSIZE, 1);
+ pc.printf("I2C.write...\n");
+ // turn off M2S signal
+ indicatorM2S =0;
+
+ // write all 0s to the NFC memory
+ OpenNDEFSession(pCCFile->FileID, ASK_FOR_SESSION);
+ NDEF_WriteNDEF(Zero_Buffer);
+ CloseNDEFSession(pCCFile->FileID);
+ memset(NDEF_Buffer, 0, sizeof(NDEF_Buffer));
+ }
+ }
+ }
+}
\ No newline at end of file