I have been trying to get the ST lib's to work with the Greenhills compiler (Multi 2000 3.5). I have managed to get the example using interrupts to flash LEDs on the eval board working but can't get the UART interrupt example to work. It compiles ok but does nothing when it receives characters from the PC. I can see all the flags getting set correctly and the characters appearing in the buffer but nothing else happens. It works ok if I use the polling example. What do I need to do to get the ST libs to work with Grrenhills? Thanks Vaughan