I2CTester: add address mismatch statistics

Author: maciejbocianski

components/testing/COMPONENT_FPGA_CI_TEST_SHIELD/I2CTester.cpp

@@ -79,9 +79,16 @@ uint8_t I2CTester::state_num()
 
 uint8_t I2CTester::num_dev_addr_matches()
 {
-    uint8_t num_correct = 0;
-    read(TESTER_I2C_NUMBER_DEV_ADDR_MATCHES, &num_correct, sizeof(num_correct));
-    return num_correct;
+    uint8_t num_dev_addr_matches = 0;
+    read(TESTER_I2C_NUMBER_DEV_ADDR_MATCHES, &num_dev_addr_matches, sizeof(num_dev_addr_matches));
+    return num_dev_addr_matches;
+}
+
+uint8_t I2CTester::num_dev_addr_mismatches()
+{
+    uint8_t num_dev_addr_mismatches = 0;
+    read(TESTER_I2C_NUMBER_DEV_ADDR_MISMATCHES, &num_dev_addr_mismatches, sizeof(num_dev_addr_mismatches));
+    return num_dev_addr_mismatches;
 }
 
 void I2CTester::set_device_address(uint16_t addr)

components/testing/COMPONENT_FPGA_CI_TEST_SHIELD/I2CTester.h

@@ -96,6 +96,13 @@ class I2CTester: public MbedTester {
      */
     uint8_t num_dev_addr_matches();
 
+    /**
+     * Get the number of times the device address has been sent incorrectly
+     *
+     * @return The number of times the device address has been sent incorrectly
+     */
+    uint8_t num_dev_addr_mismatches();
+
     /**
      * Set the I2C slave device address
      *

components/testing/COMPONENT_FPGA_CI_TEST_SHIELD/fpga_config.h

@@ -194,3 +194,5 @@
 #define TESTER_I2C_NUM_READS                          (0x018 + 0x00105000)
 #define TESTER_I2C_FROM_SLAVE_CHECKSUM                (0x01A + 0x00105000)
 #define TESTER_I2C_FROM_SLAVE_CHECKSUM_SIZE           4
+#define TESTER_I2C_NUMBER_DEV_ADDR_MISMATCHES         (0x01E + 0x00105000)
+#define TESTER_I2C_NUMBER_DEV_ADDR_MISMATCHES_SIZE    1