Thierry Pébayle / mbed-STM32F030K6

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Diff: targets/hal/TARGET_NXP/TARGET_LPC43XX/i2c_api.c

Revision:
318:bad45627264e
Parent:
285:31249416b6f9
diff -r 60d539162fb2 -r bad45627264e targets/hal/TARGET_NXP/TARGET_LPC43XX/i2c_api.c
--- a/targets/hal/TARGET_NXP/TARGET_LPC43XX/i2c_api.c	Thu Sep 11 16:15:07 2014 +0100
+++ b/targets/hal/TARGET_NXP/TARGET_LPC43XX/i2c_api.c	Thu Sep 11 16:30:07 2014 +0100
@@ -101,11 +101,12 @@
     i2c_conclr(obj, 1, 1, 1, 1);
     i2c_interface_enable(obj);
 
-    // If pins are not dedicated, set SCU functions
-    if (sda != P_DED) {
+    // Set SCU functions
+    if (scl == P_DED) {
+        // Enable dedicated I2C0 SDA and SCL pins (open drain)
+        LPC_SCU->SFSI2C0 = (1 << 11) | (1 << 3);
+    } else {
         pinmap_pinout(sda, PinMap_I2C_SDA);
-    }
-    if (scl != P_DED) {
         pinmap_pinout(scl, PinMap_I2C_SCL);
     }
 }