Diff: ads1248.cpp

Revision:

0:1b92bdad27f6

Child:

1:54015254fc18

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ads1248.cpp	Sat Aug 08 18:29:32 2020 +0000
@@ -0,0 +1,104 @@
+#include "ads1248.h"
+
+unsigned char ADS1248SleepCommand( void )
+{    
+    DS1248_CS = 0;    
+    SPI1MasterTransferByte(DS1248_SLEEP_COMMAND);
+    DS1248_CS=1;
+    DS1248_START = 0;
+    return 0;                
+}
+
+unsigned char ADS1248WakeupCommand( void )
+{     
+    DS1248_CS = 0;
+    DS1248_START = 1;                   
+    SPI1MasterTransferByte(DS1248_WAKEUP_COMMAND);
+    DS1248_CS = 1;    
+    return 0;    
+}
+
+unsigned char ADS1248ReadRegister( unsigned char reg, unsigned char num )
+{
+    char res[num];
+    DS1248_CS = 0;
+    SPI1MasterTransferByte(DS1248_RREG_COMMAND | ( reg & 0x0F ));
+    SPI1MasterTransferByte(num - 1);
+    while (num--)
+    {
+        res[num]=SPI1MasterTransferByte(DS1248_NOP_COMMAND);
+    }
+    DS1248_CS = 1;
+     return res[0];
+}
+
+unsigned char ADS1248WriteRegister( unsigned char reg, unsigned char num, uint8_t data)
+{
+    DS1248_CS = 0;
+    SPI1MasterTransferByte(DS1248_WREG_COMMAND | ( reg & 0x0F ));
+    SPI1MasterTransferByte(num - 1);    
+    SPI1MasterTransferByte(data);
+    SPI1MasterTransferByte(DS1248_NOP_COMMAND);
+    DS1248_CS = 1;    
+    return 0;    
+}
+
+unsigned char ADS1248StartConversion( void )
+{
+    DS1248_START = 1;
+    
+    //delay_us ( 5 );
+    
+    DS1248_START = 0;
+    return 0;
+}
+
+unsigned long ADS1248ReadData( ADS1248_t * ads )
+{
+    
+    union{
+        struct{
+            uint8_t
+            b1,b2,b3;
+            };
+            uint32_t all;
+    }data;
+    data.all=0;
+    
+    DS1248_CS = 0;
+    wait_us(1);    
+    SPI1MasterTransferByte(DS1248_RDATA_COMMAND);
+    data.b3=SPI1MasterTransferByte(DS1248_NOP_COMMAND);
+    data.b2=SPI1MasterTransferByte(DS1248_NOP_COMMAND);
+    data.b1=SPI1MasterTransferByte(DS1248_NOP_COMMAND);
+    wait_us(1);
+    DS1248_CS = 1;
+        
+    return data.all;
+}
+
+unsigned char ADS1248SettingReg ( ADS1248_t * ads )
+{
+    DS1248_START = 1;
+    DS1248_CS = 0;
+    wait_us(1);
+    SPI1MasterTransferByte(DS1248_RESET_COMMAND);
+    wait_us(600);
+    SPI1MasterTransferByte(DS1248_SDATAC_COMMAND);
+    
+    ADS1248WriteRegister ( DS1248_REGISTER_MUX0, 1, ads->MUX0.all );    
+    ADS1248WriteRegister ( DS1248_REGISTER_VBIAS, 1,ads->VBIAS.all);
+    ADS1248WriteRegister ( DS1248_REGISTER_MUX1, 1, ads->MUX1.all );    
+    ADS1248WriteRegister ( DS1248_REGISTER_SYS0, 1, ads->SYS0.all );
+    ADS1248WriteRegister ( DS1248_REGISTER_IDAC0,1, ads->IDAC0.all);
+    ADS1248WriteRegister ( DS1248_REGISTER_IDAC1,1, ads->IDAC1.all);    
+    ADS1248WriteRegister ( DS1248_REGISTER_FSC0,1, ads->FSC.FSC0);
+    ADS1248WriteRegister ( DS1248_REGISTER_FSC1,1, ads->FSC.FSC1);
+    ADS1248WriteRegister ( DS1248_REGISTER_FSC2,1, ads->FSC.FSC2);
+    
+    SPI1MasterTransferByte(DS1248_SYNC_COMMAND);
+    wait_us(1);
+    DS1248_CS = 1;
+    return 0;
+    
+}