Using the LPCXpresso IDE with the LPCXpresso43S67 board and 2 example programs periph_uart and periph_uart_rb. I have wired the rsr232 output to the PC rs232 port and run Tera Term. I get text in the Tera Term window but it is garbage. When it is looking for autobaud I hit a key 'A' and a large amount of text garbage comes out. I believe the wiring is correct since I seem to be receiving data. The ring buffer version actually sets the baud rate at 115200 which is what I have set for the Tera Term. When I put a logic analyzer on the receive and use an rs232 interpreter of the logic analyzer I see the same garbage. But when I change the logic level of the rs232 from negative (default) to pos it interprets the data correctly. I do not have control of the logic level in Tera Term. How do I get this to work ??