Revision 0:bda68ad195a7, committed 2012-04-24

Comitter:

andreastradella

Date:

Tue Apr 24 09:47:18 2012 +0000

Commit message:

Working code for Silica TUSA RFID demo board

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Apr 24 09:47:18 2012 +0000
@@ -0,0 +1,322 @@
+#include "mbed.h"
+
+SPI spi(p11, p12, p13); // mosi, miso, sclk
+DigitalOut cs(p28); // chip select
+DigitalOut ifsel1(p26); // interface select pin for  CLRC6630
+DigitalOut pdres(p27); // CLRC6630 RESET pin - H = RESET
+DigitalOut led[] = {(LED1) , (LED2) , (LED3) , (LED4)}; // onboard LEDs
+Serial pc(USBTX, USBRX); // tx, rx
+
+char r;
+int w = 0;
+char UID0 , UID1 , UID2 , UID3 , UID4, UID5 , UID6 , UID7 , UID8 , UID9, UID10;
+
+ 
+//write SPI registers    
+void write_reg(char n, char o)
+{
+ 
+    cs=0; // device select
+    
+    spi.write (n<<1);
+    spi.write (o);
+    
+    cs=1; // device deselect
+ }
+ 
+
+// read SPI registers
+char read_reg(char n)
+{
+    char t;
+    cs=0; // device select
+    
+    
+    spi.write ((n<<1)|0x01);
+    t=spi.write (0);
+        
+    cs=1; // device deselect
+    
+    return t;
+ }
+ 
+
+//> Terminate any running command. Flush_FiFo
+void terminate_and_flush_FiFo()
+{
+   write_reg( 0x00, 0x00 );
+   write_reg( 0x02, 0xB0 );
+}
+
+
+// Clear all IRQ 0,1 flags
+void clear_IRQ()
+{
+   write_reg( 0x06, 0x7F );
+   write_reg( 0x07, 0x7F );
+} 
+
+
+// Disable Irq 0,1 sources
+void disable_IRQ()
+{
+   write_reg( 0x08, 0x00 );       
+   write_reg( 0x09, 0x00 );
+}
+
+
+//> Wait until the command is finished. Enable IRQ sources.
+void wait_command_and_enable_IRQ()
+{
+   write_reg( 0x08, 0x18 );         // Enable Irqs 0,1
+   write_reg( 0x09, 0x42 );         // Enable the global IRQ to be propagated to the IRQ pin
+            
+   while( (read_reg( 0x07 ) & 0x40)==0);
+}
+
+
+// Read IRQ 0,1 Status register
+void read_IRQ_status()
+{
+   r = read_reg( 0x06 );
+   r = read_reg( 0x07 );
+}
+
+
+// Start tranceive command
+void start_tranceive()
+{
+    write_reg( 0x00, 0x07 );
+    wait(0.01);
+}
+
+ 
+ int main() {
+    
+    while (1) {
+ 
+        //  start activity LED;
+        led[3] = 0;
+        led[2] = 0;
+        led[1] = 0;
+        led[0] = 1;
+                
+        // set the comunication method
+        //ifsel1 = 0; // usare questa istruzione per le schede revisione prototipo
+        ifsel1 = 1; // usare questa istruzione per le schede revisione B
+        wait(0.001);
+    
+        // SPI comunication settings
+        spi.format(8,0);
+        spi.frequency(1000000);
+        
+            do {
+                              
+                w = 0;
+    
+                    do {
+
+                        //RESET the device
+                        pdres = 1;
+                        wait(0.001);
+                        pdres = 0;
+    
+                        wait(0.005);
+        
+
+                        //> --------------------------------
+                        //write_reg( 0x37, 0xFF );
+
+                        //> =============================================
+                        //> Load Protocol (ISO15693)
+                        //> =============================================
+
+                        write_reg( 0x0F, 0x98 ); // Configure T0
+                        write_reg( 0x14, 0x92 ); // Configure T1 and cascade it with T0
+                        write_reg( 0x19, 0x20 ); // Configure T2 for LFO AutoTrimm 
+                        write_reg( 0x1A, 0x03 ); // T2 reload value for LFO AutoTrimm
+                        write_reg( 0x1B, 0xFF );
+                        write_reg( 0x1E, 0x00 ); // Configure T3 (for LPCD/ AutoTrimm) 
+                        write_reg( 0x02, 0x90 ); // Set FiFo-Size and Waterlevel
+                        write_reg( 0x03, 0xFE );
+                        write_reg( 0x0C, 0x80 ); // Init. RxBitCtrl register
+                        write_reg( 0x28, 0x80 );
+                        write_reg( 0x29, 0x00 ); // Init. TxAmp register 
+                        write_reg( 0x2A, 0x01 ); // Init. DrvCon register
+                        write_reg( 0x2B, 0x05 ); // Init. TxI register
+                        write_reg( 0x34, 0x00 ); // Init RxSOFD register 
+                        write_reg( 0x38, 0x12 ); // Init. RCV register
+
+                        //> Terminate any running command. Flush_FiFo
+                        terminate_and_flush_FiFo();
+
+                        // Clear all IRQ 0,1 flags
+                        clear_IRQ();
+
+                        // Write in FIFO "Load protocol" params(TxProtocol=Iso15693(0a), 0xRxProtocol=Iso15693(0a),
+                        write_reg( 0x05, 0x0A );
+                        write_reg( 0x05, 0x0A );
+
+                        // Idle interrupt(Command terminated), RC663_BIT_IDLEIRQ=0x10
+                        r = read_reg( 0x08 );
+                        write_reg( 0x08, 0x10 ); // Enable IRQ0, 0xIRQ1 interrupt sources
+
+                        // Enable Global IRQ propagation.
+                        r = read_reg( 0x09 );
+                        write_reg( 0x09, 0x40 );
+                        wait(0.001);
+                        r = read_reg( 0x09 );
+
+                        //> Start RC663 command "Load Protocol"=0x0d
+                        write_reg( 0x00, 0x0D ); // Execute Rc663 command: "Load protocol"
+
+                        //SLP 100
+                        wait(0.1);
+
+                        // Disable Irq 0,1 sources
+                        disable_IRQ();
+
+                        write_reg( 0x02, 0xB0 ); // Flush FIFO
+
+                        //> Apply RegisterSet
+                        write_reg( 0x2C, 0x7B );
+                        write_reg( 0x2D, 0x7B );
+                        write_reg( 0x2E, 0x08 );
+                        write_reg( 0x2F, 0x00 );
+                        write_reg( 0x30, 0x00 );
+                        write_reg( 0x31, 0x00 );
+                        write_reg( 0x33, 0x0F );
+                        write_reg( 0x35, 0x02 );
+                        write_reg( 0x37, 0x4E );
+                        write_reg( 0x39, 0x04 );
+                        write_reg( 0x36, 0x8C ); // Set the RxWait register 
+                        write_reg( 0x31, 0xC0 );
+                        write_reg( 0x32, 0x00 );
+
+                        // Write Timer-0, 0xTimer-1 reload values(high,low)
+                        write_reg( 0x10, 0x18 );
+                        write_reg( 0x11, 0x86 );
+                        write_reg( 0x15, 0x00 );
+                        write_reg( 0x16, 0x00 );
+                        write_reg( 0x29, 0x0A );
+                        write_reg( 0x28, 0x81 );
+                        write_reg( 0x0B, 0x00 ); // Disable MIFARE Crypto1
+
+                        //> =============================================
+                        //> FieldOn
+                        //> =============================================
+                        write_reg( 0x28, 0x89 );
+                        wait(0.1);
+
+                        //> =============================================
+                        //> ActivateCard
+                        //> =============================================
+
+                        // Set short timeout. Timer-0,Timer-1 reload values(hi,lo) 
+                        write_reg( 0x10, 0x24 );
+                        write_reg( 0x11, 0xEB );
+                        write_reg( 0x15, 0x00 );
+                        write_reg( 0x16, 0x00 );
+
+                        //> Terminate any running command. Flush_FiFo
+                        terminate_and_flush_FiFo();
+
+                        // Clear all IRQ 0,1 flags
+                        clear_IRQ();
+
+                        // Write: "Flags" and "Inventory" cmd in FIFO 
+                        write_reg( 0x05, 0x36 );
+                        write_reg( 0x05, 0x01 );
+                        write_reg( 0x05, 0x00 );
+                        write_reg( 0x05, 0x00 );
+
+                        // Start tranceive command
+                        start_tranceive();
+
+                        //> Wait until the command is finished. Enable IRQ sources.
+                        wait_command_and_enable_IRQ();
+
+                            while (w == 0){
+                            pc.printf("\nNO CARD DETECTED...\n");
+                            pc.printf("WAITING FOR A CARD...\n");
+                            
+                            led[3] = 0;
+                            led[2] = 0;
+                            led[0] = 0;
+                            led[1] = 1;
+                            
+                            w++;
+                            }
+
+                    } while ( read_reg( 0x40 == 0 ) );
+
+                // Disable IRQ0,IRQ1 interrupt sources 
+                disable_IRQ();
+
+                // Read IRQ 0,1 Status register
+                read_IRQ_status();
+
+                //> Read FIFO, 0xUID
+                r = read_reg( 0x04 );
+
+                pc.printf("\nUID = %02X ",  UID1 = read_reg( 0x05 ));   
+
+                pc.printf("%02X ",  UID2 = read_reg( 0x05 ));
+
+                pc.printf("%02X ",  UID3 = read_reg( 0x05 ));
+
+                pc.printf("%02X ",  UID4 = read_reg( 0x05 ));
+
+                pc.printf("%02X ",  UID5 = read_reg( 0x05 ));
+
+                pc.printf("%02X ",  UID6 = read_reg( 0x05 ));
+
+                pc.printf("%02X ",  UID7 = read_reg( 0x05 ));
+
+                pc.printf("%02X ",  UID8 = read_reg( 0x05 ));
+
+                pc.printf("%02X ",  UID9 = read_reg( 0x05 ));
+
+                pc.printf("%02X\n ",  UID10 = read_reg( 0x05 ));
+
+                // Read IRQ 0,1 Status register
+                read_IRQ_status();    
+
+                // Read Error status register
+                r = read_reg( 0x0A );    // Response:  00
+
+                r = read_reg( 0x2E );    // Response:  08
+                write_reg( 0x2E, 0x08 );
+                r = read_reg( 0x0C );    // Response:  80
+                r = read_reg( 0x2E );    // Response:  08
+                write_reg( 0x2E, 0x08 );
+                
+                led[3] = 0;
+                led[1] = 0;
+                led[0] = 0;
+                led[2] = 1;
+
+            } while( (read_reg( 0x05 ) & 0x04) == 0 );
+
+
+        //> =============================================
+        //> Apply Waiting time 
+        //> =============================================
+
+        write_reg( 0x10, 0x20 );
+        write_reg( 0x11, 0xFF );
+        write_reg( 0x15, 0x00 );
+        write_reg( 0x16, 0x00 );
+
+        r = read_reg( 0x0E );    // Response:  00
+
+        // Clear all IRQ1 flags
+        write_reg( 0x07, 0x7F );
+        
+        led[3] = 0;
+        led[0] = 0;
+        led[1] = 0;
+        led[2] = 1;
+
+    }
+}
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Tue Apr 24 09:47:18 2012 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/b4b9f287a47e