elic
Newbie level 1
Hello everybody,
:| :|
We r a team of two working to interface Samsung's ML-1610 laser printer with a USB card. The printer is required to print only text and that to in a fixed format. The application does not support any operating system and the required software is being developed using Keil-C. Software is being developed to send USB transactions from the card to printer in the same way aa a pritner driver sends from PC. For this we used SourceUSB capture tool to capture transfers on PC's USB port. We found these transfers consisted of
i.) Bulk transfers
ii.) Calss-interface transfers
iii.) Vendor-interface transfers
among these we are able to get desired response from pritner for Bulk and class-interface requests. even after sending the same set-up packet shown by capture tool for vendor requests, we are not getting any response from the printer.
:?:
what may be the reason for this -- is the set-up packet captured by the capture tool not correct or is the capture tool missing any transfers or it that we cannot emulate printer driver in generating vendor requests ? ?
we r seriously in requirement of good suggetions and advices so please respond.
thanking u in advance
regards
elic
:| :|
We r a team of two working to interface Samsung's ML-1610 laser printer with a USB card. The printer is required to print only text and that to in a fixed format. The application does not support any operating system and the required software is being developed using Keil-C. Software is being developed to send USB transactions from the card to printer in the same way aa a pritner driver sends from PC. For this we used SourceUSB capture tool to capture transfers on PC's USB port. We found these transfers consisted of
i.) Bulk transfers
ii.) Calss-interface transfers
iii.) Vendor-interface transfers
among these we are able to get desired response from pritner for Bulk and class-interface requests. even after sending the same set-up packet shown by capture tool for vendor requests, we are not getting any response from the printer.
:?:
what may be the reason for this -- is the set-up packet captured by the capture tool not correct or is the capture tool missing any transfers or it that we cannot emulate printer driver in generating vendor requests ? ?
we r seriously in requirement of good suggetions and advices so please respond.
thanking u in advance
regards
elic