Revision 1:c7e291816833, committed 2020-08-06

Comitter:

peng103617

Date:

Thu Aug 06 06:53:20 2020 +0000

Parent:

0:df16df7ba53f

Commit message:

ADXL355

Changed in this revision

--- a/main.cpp	Thu Feb 06 19:25:43 2020 +0000
+++ b/main.cpp	Thu Aug 06 06:53:20 2020 +0000
@@ -74,21 +74,31 @@
 // Blinking rate in milliseconds
 #define SLEEP_TIME                  500
 // Setup the SPI peripheral to talk to the ADXL35x
-SPI spi(D11, D12, D13);
+//SPI spi(D11, D12, D13);
+// initialize chip select
+//DigitalOut cs(D10);
+
+SPI spi(PB_15, PB_14, PB_13);
 // initialize chip select
-DigitalOut cs(D10);
+DigitalOut cs(PB_1);
+
+
+
+
 
 // Initialise the digital pin LED1 as an output
 DigitalOut led1(LED1);
 // Initialise the serial object with TX and RX pins
 Serial pc(USBTX, USBRX);
+Timer t; 
 int id=0;
-
+int i=1;
 
 // main() runs in its own thread in the OS
 int main()
 {
     pc.printf("Hello World!");
+    pc.baud (115200) ;
     
     spi.frequency(1000000);
     
@@ -126,9 +136,11 @@
     // Now dump the temp and accelerometer data to the port
     
     while (true) {
+         t.start(); 
+        
         // Blink LED and wait 500 ms
-        led1 = !led1;
-        thread_sleep_for(SLEEP_TIME);
+        //led1 = !led1;
+        //thread_sleep_for(SLEEP_TIME);
         
         //the acceleration data is 20 bits and needs to come in via three register transactions
         cs=0;
@@ -144,7 +156,7 @@
         // This should output the ID register as 0x01        
         i32SensorX = ADXL355_Acceleration_Data_Conversion(ui32Result); 
         //pc.printf("X acceleration formatted data = %d\n", i32SensorX);
-        pc.printf("X = %2.6f g, ", i32SensorX*LSB_scale_factor);
+     //  pc.printf("%2.6f   \n\r", i32SensorX*LSB_scale_factor);
         
         //the acceleration data is 20 bits and needs to come in via three register transactions
         cs=0;
@@ -160,7 +172,9 @@
         // This should output the ID register as 0x01        
         i32SensorY = ADXL355_Acceleration_Data_Conversion(ui32Result); 
         //pc.printf("Y acceleration formatted data = %d\n", i32SensorY);
-        pc.printf("Y = %2.6f g, ", i32SensorY*LSB_scale_factor);
+     //  pc.printf("%2.6f   \n\r", i32SensorY*LSB_scale_factor);
+        
+        
         
         
         //the acceleration data is 20 bits and needs to come in via three register transactions
@@ -172,14 +186,28 @@
         cs=1;
         // Put it back together
         
+        
+       
+        
+        
         ui32Result = ((ui8SensorZ << 16) | (ui8SensorZ2 << 8) | ui8SensorZ3); /* Set read result*/
         //pc.printf("Z acceleration data = 0x%X\n", ui32Result);
         // This should output the ID register as 0x01        
         i32SensorZ = ADXL355_Acceleration_Data_Conversion(ui32Result);        
         //pc.printf("Z acceleration formatted data = %d \n", i32SensorZ);
-        pc.printf("Z = %2.6f g", i32SensorZ*LSB_scale_factor);
+    //   pc.printf("%2.6f  \n\r", i32SensorZ*LSB_scale_factor);
+        
+        
+        
         
-        pc.printf("\n");
+            
+        t.stop(); 
+        //pc.printf(" %d us\n\r", t.read_us());  wait1.5ms
+
+        wait(0.01); //max0.0016
+        
+         
+        
     }
 }
 int32_t ADXL355_Acceleration_Data_Conversion (uint32_t ui32SensorData)