topic Re: MCF5329 UART2 Problem in ColdFire/68K Microcontrollers and Processors https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MCF5329-UART2-Problem/m-p/172570#M6504 <HTML><HEAD></HEAD><BODY><DIV>Upon further investigation, the CAN transceiver loops sent data back to the reciever. All three UARTs work as expected.</DIV></BODY></HTML> Mon, 14 Jul 2008 10:11:31 GMT SD_EE 2008-07-14T10:11:31Z MCF5329 UART2 Problem https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MCF5329-UART2-Problem/m-p/172569#M6503 <HTML><HEAD></HEAD><BODY><DIV>My colleagues and I are&nbsp;planning to use UART communication between the 5329 and three peripheral devices. I have verified the operation of UART0 and UART1, but UART2 acts strangely.</DIV><DIV>&nbsp;</DIV><DIV>I can transmit on UART2, but the transmitted characters show up on the reciever too.&nbsp;I can see the&nbsp;character&nbsp;on an oscilloscope and in the read buffer. I can convince myself that the UART2 receiver works because what I see on the oscilloscope is what I see in the read buffer. But why am I seeing the transmitted data on the receive line?</DIV><DIV>&nbsp;</DIV><DIV>Is this a problem with the 5329 silicon? Is this problem due to the external circuitry (CAN transceiver, RS232 converter) on the&nbsp;Logic PD Eval Board?</DIV></BODY></HTML> Sun, 13 Jul 2008 10:41:21 GMT https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MCF5329-UART2-Problem/m-p/172569#M6503 SD_EE 2008-07-13T10:41:21Z Re: MCF5329 UART2 Problem https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MCF5329-UART2-Problem/m-p/172570#M6504 <HTML><HEAD></HEAD><BODY><DIV>Upon further investigation, the CAN transceiver loops sent data back to the reciever. All three UARTs work as expected.</DIV></BODY></HTML> Mon, 14 Jul 2008 10:11:31 GMT https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MCF5329-UART2-Problem/m-p/172570#M6504 SD_EE 2008-07-14T10:11:31Z