Revision 3:4c39249bcd56, committed 2021-12-05

Comitter:

yutation

Date:

Sun Dec 05 05:11:38 2021 +0000

Parent:

2:6d633bb5c09d

Commit message:

spimaster

Changed in this revision

diff -r 6d633bb5c09d -r 4c39249bcd56 SDspimaster.cpp
--- a/SDspimaster.cpp	Sun Dec 05 03:05:32 2021 +0000
+++ b/SDspimaster.cpp	Sun Dec 05 05:11:38 2021 +0000
@@ -32,7 +32,8 @@
 const uint8_t NO_ERROR =0;
 
 //the variable below should be replaced by a specific pin
-// the name is the same as the data sheet of spimaster
+// the names are the same the as the spimaster port name
+// i and o are the input of output of spimaster instead of the mbed.
 
 uint8_t clk_i;
 uint8_t address_i;
@@ -40,30 +41,45 @@
 uint8_t data_o;
 uint8_t write_en;
 uint8_t rst_i;
+uint8_t strobe_i;
+uint8_t ack_o;
 
 
 
 SDspimaster::SDspimaster(const char* name) :
     FATFileSystem(name), _is_initialized(0) {
+    clk_i = 1;
     rst_i = 1;
+    rst_i = 1;
+    clk_i = 0;
+    clk_i = 1;
+    clk_i = 0;
     rst_i = 0;
+    strobe_i = 0;
+    clk_i = 1;
+    clk_i = 0;
+    
 
 }
 
 void read_reg(uint8_t addr, uint8_t* value){
-    clk_i = 1;
     write_en = 0;
     address_i = addr;
+    strobe_i = 1;
+    clk_i = 1;
+    *value = data_o;
     clk_i = 0;
-    *value = data_o;
+    
+    
     
 }
 
 void write_reg(uint8_t addr, uint8_t value){
-    clk_i = 1;
     address_i = addr;
     data_i = value;
     write_en = 1;
+    strobe_i = 1;
+    clk_i = 1;
     clk_i = 0;
     
 }