X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=doc%2Fopenocd.texi;h=cd64c7aecbd34d600af1283f52dd378889e7b420;hp=138922d08d834cbe7a4f3e1ba74799e04bd005ef;hb=4afd8852bb320deea553504161bd2c79c434bb1b;hpb=a0bd3c9924870c3b8f428648410181040dabc33c

diff --git a/doc/openocd.texi b/doc/openocd.texi
index 138922d08d..cd64c7aecb 100644
--- a/doc/openocd.texi
+++ b/doc/openocd.texi
@@ -2459,7 +2459,7 @@ This driver is for adapters using the MPSSE (Multi-Protocol Synchronous Serial
 Engine) mode built into many FTDI chips, such as the FT2232, FT4232 and FT232H.
 
 The driver is using libusb-1.0 in asynchronous mode to talk to the FTDI device,
-bypassing intermediate libraries like libftdi or D2XX.
+bypassing intermediate libraries like libftdi.
 
 Support for new FTDI based adapters can be added completely through
 configuration files, without the need to patch and rebuild OpenOCD.
@@ -2728,13 +2728,6 @@ USB JTAG/USB-Blaster compatibles over one of the userspace libraries
 for FTDI chips. These interfaces have several commands, used to
 configure the driver before initializing the JTAG scan chain:
 
-@deffn {Config Command} {usb_blaster device_desc} description
-Provides the USB device description (the @emph{iProduct string})
-of the FTDI FT245 device. If not
-specified, the FTDI default value is used. This setting is only valid
-if compiled with FTD2XX support.
-@end deffn
-
 @deffn {Config Command} {usb_blaster vid_pid} vid pid
 The vendor ID and product ID of the FTDI FT245 device. If not specified,
 default values are used.
@@ -3131,6 +3124,26 @@ Specifies the serial number of the adapter.
 @deffn {Config Command} {st-link vid_pid} [vid pid]+
 Pairs of vendor IDs and product IDs of the device.
 @end deffn
+
+@deffn {Command} {st-link cmd} rx_n (tx_byte)+
+Sends an arbitrary command composed by the sequence of bytes @var{tx_byte}
+and receives @var{rx_n} bytes.
+
+For example, the command to read the target's supply voltage is one byte 0xf7 followed
+by 15 bytes zero. It returns 8 bytes, where the first 4 bytes represent the ADC sampling
+of the reference voltage 1.2V and the last 4 bytes represent the ADC sampling of half
+the target's supply voltage.
+@example
+> st-link cmd 8 0xf7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
+0xf1 0x05 0x00 0x00 0x0b 0x08 0x00 0x00
+@end example
+The result can be converted to Volts (ignoring the most significant bytes, always zero)
+@example
+> set a [st-link cmd 8 0xf7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0]
+> echo [expr 2*1.2*([lindex $a 4]+256*[lindex $a 5])/([lindex $a 0]+256*[lindex $a 1])]
+3.24891518738
+@end example
+@end deffn
 @end deffn
 
 @deffn {Interface Driver} {opendous}