target/armv7m: fix register number in armv7m_get_core_reg()

[openocd.git] / doc / manual / jtag.txt

diff --git a/doc/manual/jtag.txt b/doc/manual/jtag.txt
index 3c8a181ca5619c2c081f8e64aa3a32ffb311f2d6..8f0804ce9345f8d564280f5fdab12cdd71486479 100644 (file)
--- a/doc/manual/jtag.txt
+++ b/doc/manual/jtag.txt
@@ -1,38 +1,72 @@
-/** @page jtagdocs OpenOCD JTAG APIs
+/** @page jtagdocs JTAG APIs
 
 For new developers unfamiliar with the technology, @ref primerjtag provides
 a brief introduction to the IEEE JTAG interface.
 
-The OpenOCD JTAG library API covers several functional areas:
+The OpenOCD JTAG library API covers several functional areas.  The jtag
+@b core communicates through the @b minidriver API with either its full
+@a driver implementation (src/jtag/jtag_driver.c) or a @a minidriver .
+Internally, the @b command API is used by the JTAG driver for managing
+asynchronous transactions.
+
+- @subpage jtagcore
+  - @b public API routines
+  - declared in @c src/jtag/jtag.h
+  - used by other modules
+
+- @subpage jtagtcl
+  - @b private TCL handling routines
+  - defined in @c src/jtag/tcl.c
+  - registers and handles Jim commands that configure and use the JTAG core
+
+- @subpage jtagcmd
+  - @b private command queue API
+  - declared in @c src/jtag/commands.h
+  - provides routines used internally by the full JTAG drivers.
+
+- @subpage jtagiface
+  - @b private interface driver API
+  - declared in @c src/jtag/interface.h
+  - used by the core, minidrivers, and the full interface device drivers.
+    - allows implementing new interface device drivers.
+    - includes the Cable/TAP API (commands starting with @c tap_)
+
+- @subpage jtagdriver
+  - @b private minidriver API
+  - declared in @c src/jtag/minidriver.h
+  - used @a only by the core and minidriver implementations:
+    - @c jtag_driver.c (in-tree OpenOCD drivers)
+    - @c zy1000/build/include/jtag_minidriver.h (ZY1000 minidriver)
+    - future implementations (on other embedded hosts)
+    - interface device drivers do @b not need this API.
 
-  - @subpage jtagcable
-  - @subpage jtagtap
-  - @subpage jtagmdriver
-  - @subpage jtagdriver
+ */
+
+/** @page jtagcore JTAG Core API
 
 This section needs to be expanded.
 
  */
 
-/** @page jtagcable OpenOCD JTAG Cable API
+/** @page jtagtcl JTAG TCL API
 
 This section needs to be expanded.
 
  */
 
-/** @page jtagtap OpenOCD JTAG TAP API
+/** @page jtagcmd JTAG Command API
 
 This section needs to be expanded.
 
  */
 
-/** @page jtagmdriver OpenOCD JTAG Interface API
+/** @page jtagiface JTAG Interface API
 
 This section needs to be expanded.
 
  */
 
-/** @page jtagdriver OpenOCD JTAG Driver API
+/** @page jtagdriver JTAG Minidriver API
 
 This section needs to be expanded.