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Hardware / Cannot flash - lpctool / nxp / BettyHeaven

19. Feb 2013, 11:20

I took apart a USB-Serial cable based on Prolific PL2303HX and manually soldered the RX, TX, RTS, DTR signals to the chipset.
In RealTerm I can trigger the RTS and DTR pins to bring the device into bootloader mode, if I press "?" I get back "Synchronized". However, lpctool gets stuck at "awaiting autobaud response", NXP tool cannot open the port, BettyHeaven does not list the serial port at all. Under a WinXP Virtual Machine lpctool behaves the same, NXP times out, BettyHeaven again does not list the port, RealTerm works.

I can see that lpctool pulls the DTR line low, so reset works. I manually bridge the BL pin to ground before running the tool. I tried both the normal version of lpctool and the one limited to 38400 baud.

Is there any other way to flash the chip? I will download a Linux VM and try with that but I assume the Prolific chip is not properly supported by any of these tools.

Maybe I have a different bootloader?

Code: [Auswählen]

BettyHHUbootloader 00006420 00B770ED 1MByte
                                   
BIOS 00006420 000179B4 617EE0AD
                                               
no new BIOS
                                                                   
BIOS 000179B4 617EE0AD
                                                       
starting BIOS...

                                                           
                                                                               
Betty HHU BIOS 00B770ED 1MB
                                                   
Current build 25632, last build 25632
                                         
*** FONT 25632 F
                                                             
*** WAVE 12900
                                                               
*** HW V2
                                                                     
This is the final firmware for Betty. There will be no further updates.
       
*** FLASH 1C5B
                                                               
*** System up and running