Diff: i2c_mbed_fpga.cpp

Revision:

5:daab0e0e67e2

Parent:

0:fe3c7dde9771

Child:

6:019ab407ac3c

--- a/i2c_mbed_fpga.cpp	Tue Jan 12 12:01:27 2021 +0000
+++ b/i2c_mbed_fpga.cpp	Fri Jan 22 14:06:54 2021 +0000
@@ -2,28 +2,16 @@
 #include "i2c_mbed_fpga.h"
 
 
-char i2cKey[4] = {0x13, 0xA4, 0xD0, 0xD0};
-char CtrPortWactive[4] = {0x00, 0x30, 0x00, 0x71};
-char CtrPortRactive[4] = {0x00, 0x30, 0x00, 0x01};
-
 /** i2c write to slave DUT
 *
 *  @param i2c_master specifies the i2c interface
 *  @param word is considered as 4byte char data
 */
-int i2c_word_write(I2C i2c_master, char *word){
-    int ack=1;
-
-    if(ack!=0)
-    {
-        ack = i2c_master.write(i2c_slave_addr, word, 4, 0);
-        wait_ms(1);
-    }  
-
-    if(ack==0)
-        return 0;
-    else
-        return 1; 
+int i2c_mbed_fpga::i2c_word_write(char *word){
+    int ack;
+    ack = i2c_master.write(i2c_slave_addr, word, 4, 0);
+    wait_us(100); 
+    return ack; 
 }
 
 
@@ -32,45 +20,29 @@
 *  @param i2c_master specifies the i2c interface
 *  @param word is 4byte, first 2bytes as addr, the rest 2bytes to store data
 */
-int i2c_word_read(I2C i2c_master, char *word){
-    int ack=1;
-
-    if(ack!=0)
-    {
-        ack = i2c_master.write(i2c_slave_addr, word, 2, 1);
-        ack += i2c_master.read(i2c_slave_addr, word+2, 2, 0);
-        wait_ms(1);
-    }  
-
-    if(ack==0)
-        return 0;
-    else
-        return 1; 
+int i2c_mbed_fpga::i2c_word_read(char *word){
+    int ack;
+    ack = i2c_master.write(i2c_slave_addr, word, 2, 1);
+    ack += i2c_master.read(i2c_slave_addr, word+2, 2, 0);
+    wait_us(100); 
+    return (ack == 0) ? 0 : 1; 
 }
 
 
-/** i2c enter key
+/** i2c enter key to open I2C window
 *
 *  @param specifc key needed to enter i2c mode of DUT
 */
-int i2c_keyEntry(I2C i2c_master){
-    return i2c_word_write(i2c_master, i2cKey);
+int i2c_mbed_fpga::i2c_window_open(){
+    char i2cKey[4] = {0x13, 0xA4, 0xD0, 0xD0};
+    return i2c_word_write(i2cKey);
 }
 
-
-/** Activate eeprom for write operations
+/** i2c enter key to Start the motor
 *
 *  @param specifc key needed to enter i2c mode of DUT
 */
-int ctrPort_WriteActive(I2C i2c_master){
-    return i2c_word_write(i2c_master, CtrPortWactive);
+int i2c_mbed_fpga::i2c_motor_start(){
+    char i2cKey[4] = {0x13, 0xA4, 0xCA, 0xFE};
+    return i2c_word_write(i2cKey);
 }
-
-
-/** Activate eeprom for read operations
-*
-*  @param specifc key needed to enter i2c mode of DUT
-*/
-int ctrPort_ReadActive(I2C i2c_master){
-    return i2c_word_write(i2c_master, CtrPortRactive);
-}
\ No newline at end of file