Added Software projects

git-svn-id: file:///srv/dev-disk-by-uuid-17e88007-4d0c-45e0-8757-cacfcc458630/repositories/svn/Diplomarbeit@55 9fe90eed-be63-e94b-8204-d34ff4c2ff93
2008-12-23 10:34:08 +00:00
parent ee5a771818
commit 373a8c32b2
348 changed files with 86781 additions and 0 deletions
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+/* ---------------------------------------------------------------------------
+ * power.c - v0.1                                       (c) 2007 Micro-key bv
+ * ---------------------------------------------------------------------------
+ * Micro-key bv
+ * Industrieweg 28, 9804 TG Noordhorn
+ * Postbus 92, 9800 AB Zuidhorn
+ * The Netherlands
+ * Tel: +31 594 503020
+ * Fax: +31 594 505825
+ * Email: support@microkey.nl  
+ * Web: www.microkey.nl
+ * ---------------------------------------------------------------------------
+ * Description: Checks for power supply
+ * ---------------------------------------------------------------------------
+ * Version(s):  0.1, 28-11-2007, fvds.
+ *                   Creation.
+ * ---------------------------------------------------------------------------
+ */
+
+/* ---------------------------------------------------------------------------
+ * System include files
+ * ---------------------------------------------------------------------------
+ */
+#include <stdio.h>
+#include <stdlib.h>
+
+
+/* ---------------------------------------------------------------------------
+ * Application include files
+ * ---------------------------------------------------------------------------
+ */
+#include "LPC23xx.h"
+#include "types.h"
+#include "power.h"
+
+/* FreeRTOS includes */
+#include "FreeRTOS.h"
+
+/* ---------------------------------------------------------------------------
+ * Local constant and macro definitions
+ * ---------------------------------------------------------------------------
+ */
+#define ADC_INTERRUPT_FLAG  1 /* 1 is interrupt driven, 0 is polling */
+
+#define ADC_OFFSET    0x10
+#define ADC_INDEX   4
+
+#define ADC_DONE    0x80000000
+#define ADC_OVERRUN   0x40000000
+#define ADC_ADINT   0x00010000
+
+#define ADC_NUM     8   /* for LPC23xx */
+#define ADC_CLK     1000000   /* set to 1Mhz */
+
+#define VCC_DIVIDER_R1   22000
+#define VCC_DIVIDER_R2   19100
+#define VCC_DIVIDER_CORR ((VCC_DIVIDER_R2 * 1000) / (VCC_DIVIDER_R1 + VCC_DIVIDER_R2))
+#define V24_DIVIDER_R1   33000
+#define V24_DIVIDER_R2   3300
+#define V24_DIVIDER_CORR ((V24_DIVIDER_R2 * 1000) / (V24_DIVIDER_R1 + V24_DIVIDER_R2))
+
+/* ---------------------------------------------------------------------------
+ * Global variable definitions
+ * ---------------------------------------------------------------------------
+ */
+
+/* ---------------------------------------------------------------------------
+ * Local variable definitions
+ * ---------------------------------------------------------------------------
+ */
+
+/* ---------------------------------------------------------------------------
+ * Local function definitions
+ * ---------------------------------------------------------------------------
+ */
+static UINT16 ADC0Read( UINT8 channelNum );
+static UINT16 Convert2mV( UINT32 dataRegistry );
+
+
+void powerInit()
+{
+    /* Enable CLOCK into ADC controller */
+    PCONP |= (1 << 12);
+    
+    /* all the related pins are set to ADC inputs, AD0.0, 4 and 5 */
+    PINSEL1 &= ~0x0000C000;  /* P0.23, A0.0, function 01 */
+    PINSEL1 |=  0x00004000;
+    PINSEL3 |=  0xC0000000;  /* P1.31, A0.5, function 11 */
+    
+    AD0CR = ( 0x21 << 0 ) |   /* SEL=1,select channel 0,4 and 5 on ADC0 */
+            ( 0 << 8  ) |     /* CLKDIV = Fpclk / 1000000 - 1  => 2.4 MHz */
+            ( 1 << 16 ) |     /* BURST = 0, no BURST, software controlled */
+            ( 0 << 17 ) |     /* CLKS = 0, 11 clocks/10 bits */
+            ( 1 << 21 ) |     /* PDN = 1, normal operation */
+            ( 0 << 22 ) |     /* TEST1:0 = 00 */
+            ( 0 << 24 ) |     /* START = 0 A/D conversion stops */
+            ( 0 << 27 );      /* EDGE = 0 (CAP/MAT singal falling,trigger A/D conversion) */
+}
+
+UINT16 powerVccVoltage()
+{
+    UINT32 adcDataRegister;
+    UINT32 voltage;
+    
+    adcDataRegister = AD0DR5;
+    voltage = Convert2mV( adcDataRegister );
+    
+    // Correct voltage divider
+    voltage = (voltage * 1000)/VCC_DIVIDER_CORR;
+    
+    return voltage;
+}
+
+UINT16 powerV24Voltage()
+{
+    UINT32 adcDataRegister;
+    UINT32 voltage;
+    
+    adcDataRegister = AD0DR0;
+    voltage = Convert2mV( adcDataRegister );
+    
+    // Correct voltage divider
+    voltage = (voltage * 1000)/V24_DIVIDER_CORR;
+    
+    return voltage;
+}
+
+
+UINT16 Convert2mV( UINT32 dataRegister )
+{
+    UINT32 pwrDummy;
+    dataRegister = dataRegister >> 6;
+    dataRegister = dataRegister & 0x03FF;
+    
+    // Convert ADC value to voltage (0..1024 -> 0.. 3300 mV)
+    dataRegister = (dataRegister * 3300) / (1024);
+    pwrDummy = dataRegister;
+    
+    return (UINT16)dataRegister;
+}
+
+UINT16 ADC0Read( UINT8 channelNum )
+{
+    UINT16 regVal, ADC_Data;
+
+    /* channel number is 0 through 7 */
+    if ( channelNum >= ADC_NUM )
+        {
+        channelNum = 0;   /* reset channel number to 0 */
+        }
+    AD0CR &= 0xFFFFFF00;
+    AD0CR |= (1 << 24) | (1 << channelNum);
+    /* switch channel,start A/D convert */
+
+    while ( 1 )     /* wait until end of A/D convert */
+        {
+        regVal = *(volatile unsigned long *)(AD0_BASE_ADDR + ADC_OFFSET + ADC_INDEX * channelNum);
+        /* read result of A/D conversion */
+        if ( regVal & ADC_DONE )
+            {
+            break;
+            }
+        }
+
+    AD0CR &= 0xF8FFFFFF;  /* stop ADC now */
+    if ( regVal & ADC_OVERRUN ) /* save data when it's not overrun, otherwise, return zero */
+        {
+        return ( 0 );
+        }
+    ADC_Data = ( regVal >> 6 ) & 0x3FF;
+    return ( ADC_Data );  /* return A/D conversion value */
+}
+