Andrea Stradella
SILICA TUSA NXP CLRC66301HN1 RFID READER DEMO BOARD
Diff: main.cpp
- Revision:
- 0:bda68ad195a7
diff -r 000000000000 -r bda68ad195a7 main.cpp
--- /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;
+
+ }
+}
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