microbit: Added details for the i2c silicone glitch

As per https://github.com/lancaster-university/microbit-dal/issues/83 the comment in the MicroBitI2c.h file lacked context around a known hardware glitch. This commit rectifies this issue by adding a link to a collection PDF providing a more detailed explanation.
7 years ago · 0a5e4a06af
parent d22a36fdd5
commit 0a5e4a06af
1 changed files with 6 additions and 0 deletions
--- a/inc/MicroBitI2C.h
+++ b/inc/MicroBitI2C.h
@ -10,6 +10,12 @@
  *
  * Presents a wrapped mbed call to capture failed I2C operations caused by a known silicon bug in the nrf51822.
  * Attempts to automatically reset and restart the I2C hardware if this case is detected.
+  * 
+  * For reference see PAN56 in: 
+  * 
+  * https://www.nordicsemi.com/eng/nordic/Products/nRF51822/PAN-nRF51822/24634
+  * 
+  * v2.0 through to v2.4
  */
 class MicroBitI2C : public I2C
 {