Hi,
After UM232H JTAG Programming can not connect to pc via usb, the boot loader should be ok (verification is right)
I failed to download firmware to DLPC900 (single) via USB.So I use UM232H for JTAG flash programming（just as i used to do），this step follow 《dlpu028c.pdf》 3.10. But today is not my lucky day.
1. set the reset jumper
2. power-up DLPC board
3. connect the UM232H to the PC with USB cable
4. select the BoardFile.brd and select bootloader_6500.bin
5. Detect Chain find DLPC900 and Red/Green LEDs light up
6. check Flash Info is right
7. Flash Erase all sectors, progress bar display completed
8. Program Flash wait until write is complete (100%)
9. verifi success（100%）
after that remove the reset jumper and power up,the first time upload the firmware, ask me update bootloader to Ver3.0, i set yes . after update bootloader ,load the latest version firmware（V4.2），reset and run,when i want upload a LUT,GUI show cannot do that,so i restart the DLPC900 board. Nightmare is coming ，from this moment the board cannot connect to pc via USB，even I re-burned the bootloader.
1. change PC and usb port , USB cable is not working
Any suggestions?
