Atmel Studio : twi busy problem with FREERTOS_USED symbol

I’am using Atmel Studio version 7.0.1006 and AT32UC3A0512, If i pass FREERTOS_USED to the compiler the calls to twi_master_write has caused blocking, i find a hack to ASF Twi API in this link : http://www.avrfreaks.net/forum/twi-problem-home-made-board-at32uc3a0512 but the problem remains. does anyone encounter the same problem

Atmel Studio : twi busy problem with FREERTOS_USED symbol

Sorry – I’m not familiar with these Atmel drivers.