Other Parts Discussed in Thread: TXU0204
I am having an issue reading Serial Data from other controller into F28062 custom board (also with F28069 LaunchXL board)
When I emulate the same data with USB to serial device I can read all data properly into F28062 but when this particular controller is connected to 28062 then I don't get any data.
The waveforms for both cases are shown below (first column: F28062 connected to Silicon Labs USB to UART Hub, second column: F28062 connected with other controller board containing ATTiny 3226 Microcontroller)
Can anybody suggest me any solution for this. I am not able to understand what is wrong here.
The ATTiny board has a small diode on its Tx line and hence a small voltage is dropped over that line. In this case (can be seen in second column, bottom picture) the lower voltage is 0.5V but I think this is enough for F28062 to detect the low level, am I right?
This ATTiny board when used with USB to UART hub: I can read all serial data coming from ATTiny unlike in F28062.
Please suggest what can be wrong here.