We have designed an USB to RS485 bridge with VCP feature. We can send data but we can not able to manage to receive.
Whenever we send any data, data is reflecting on TUSB3410 receive pin. We thing there is aproblem on DTR control.
Schematic is controlled by local TI support engineer and there was no any error.
I2C Header Utility for VCP Applicaitons is used to generate .bin file with umpe3410.i51 sent by Dan Harmon for RS485.
EEPROM Burned Utiliy is used to download firmware. Then PC driver is used supplied by TI with swrc094d code.
When we plug the device to USB port a virtual com port is appears on device manager section, say COM7.
We can send data with a test program, but we can not receive. We can communite with the same test software and test device when we used an other USB converter.
Then I new PC driver sent by local TI support engineer and told us to modify .inf file by removing umpe3410.i51 instances. But it did not work.
1. Could you please supply us;
1. A working FW and PC driver for RS485 bridge aplication
2. A PID for our product using with TI VID : 0x0451
3. Source code for firmware and PC dirver.
Best regards.
