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[[Image:Dlp usb1232h side.jpg|thumb|right|DLP-USB1232H module]]
[[Image:Dlp_usb1232h_jtag1.jpg|thumb|right|DLP-USB1232H connected]]
[[Image:Dlp_usb1232h_jtag2.jpg|thumb|right|DLP-USB1232H connected]]

The [http://www.dlpdesign.com/usb/usb1232h.shtml DLP Design DLP-USB1232H] ([http://www.dlpdesign.com/usb1232h-ds-v12.pdf datasheet]) single channel high-speed USB adapter can be used as a JTAG adapter with [http://openocd.berlios.de/web/ OpenOCD] support.

== Schematics ==

These sample schematics show how to connect the DLP-USB1232H device pins to a sample JTAG device (an [http://www.olimex.com/dev/stm32-h103.html Olimex STM32-H103] eval board in this case).

Documentation: [http://www.dlpdesign.com/usb1232h-ds-v12.pdf DLP-USB1232H datasheet] (pinout is on page 4 and page 7), [http://www.olimex.com/dev/images/ARM/ST/STM32-H103-sch.gif schematics of the STM32-H103], [http://www.olimex.com/dev/images/arm-jtag-layout.gif STM32-H103 JTAG connector pinout].

{| border="0" style="font-size: smaller"
|- bgcolor="#6699ff"
! align="left" | Pin type
! align="left" | DLP-USB1232H pin#

! align="left" | STM32-H103 JTAG pin#
! align="left" | Comments

|- bgcolor="#eeeeee"
| '''TRST'''
| 17
| 3
| (N)TRST on the STM32-H103

|- bgcolor="#eeeeee"
| '''TDI'''
| 16
| 5
| 

|- bgcolor="#eeeeee"
| '''TMS'''
| 5
| 7
| 

|- bgcolor="#eeeeee"
| '''TCK'''
| 18
| 9
| 

|- bgcolor="#eeeeee"
| '''TDO'''
| 2
| 13
| 

|- bgcolor="#eeeeee"
| '''(S)RST'''
| 13
| 15
| 

|- bgcolor="#eeeeee"
| '''GND'''
| Either 1 or 10
| Any GND pin
| Any STM32-H103 GND pin on the JTAG connector can be used, e.g. 4, 6, 8, 10, 12, 14, 16, 18, or 20.

|}

'''IMPORTANT:''' You also need to connect/shorten '''pins 8 and 9''' on the DLP-USB1232H module in order to configure it to be powered via USB.

Also, the JTAG target (the STM32-H103 in this example) must be powered (via USB in this case).

== Usage ==

 $ '''openocd -f interface/dlp-usb1232h.cfg -f board/olimex_stm32_h103.cfg'''

A [http://lists.berlios.de/pipermail/openocd-development/2009-September/010466.html patch for OpenOCD to add the dlp-usb1232h.cfg file] has been submitted.

== Resources ==

The DLP-USB1232H is available from various sources, e.g.: [http://digikey.com/scripts/dksus.dll?Detail&name=813-1026-ND Digikey], [http://de.mouser.com/Search/ProductDetail.aspx?qs=sGAEpiMZZMt/5FJRvmqHBjWi/VTYGDW6 Mouser], or [http://www.saelig.com/product/UB068.htm Saelig].

The module can also be used as a cheap and simple [http://www.flashrom.org/FT2232SPI_Programmer SPI BIOS chip programmer] together with the [http://www.flashrom.org flashrom] utility.