i.MX RT1020 via JLink.

Author: deadsy

jlink.py

@@ -103,9 +103,9 @@ def get_jlink_dll():
   if sys.platform == 'win32':
     jlink, backend_info = locate_library('jlinkarm.dll', search_path)
   elif sys.platform.startswith('linux'):
-    jlink, backend_info = locate_library('libjlinkarm.so.5', search_path, ctypes.cdll)
+    jlink, backend_info = locate_library('libjlinkarm.so.6', search_path, ctypes.cdll)
   elif sys.platform == 'darwin':
-    jlink, backend_info = locate_library('libjlinkarm.so.5.dylib', search_path, ctypes.cdll)
+    jlink, backend_info = locate_library('libjlinkarm.so.6.dylib', search_path, ctypes.cdll)
   return jlink, backend_info
 
 # ----------------------------------------------------------------------------
@@ -437,7 +437,7 @@ def connect(self, cpu_name, itf):
     # check the hardware
     state = self.jlink.get_hw_status()
     assert state['vref'] > 1500, 'Vref is too low. Check target power.'
-    assert state['srst'] == 1, '~SRST signal is asserted. Target is held in reset.'
+    #assert state['srst'] == 1, '~SRST signal is asserted. Target is held in reset.'
     # setup the jlink interface
     self.jlink.exec_command('device=%s' % cpu_names[cpu_name])
     self.jlink.set_speed(4000)

lib32/README.md

@@ -1 +1,7 @@
 If you have a 64 bit OS the 64 bit JLINK libraries should be placed in this directory.
+
+That is:
+
+libjlinkarm.so
+libjlinkarm.so.6
+libjlinkarm.so.6.46.8

lib64/README.md

@@ -28,9 +28,9 @@
 # supported devices
 
 stlink_devices = (
-  (0x0483, 0x3744, 1), # Version 1
-  (0x0483, 0x3748, 1), # Version 2
-  (0x0483, 0x374B, 1), # Version 2.1
+  (0x0483, 0x3744, 0), # Version 1
+  (0x0483, 0x3748, 0), # Version 2
+  (0x0483, 0x374B, 0), # Version 2.1
 )
 
 def itf_lookup(vid, pid):
@@ -148,7 +148,7 @@ def __init__(self, vid, pid, sn):
     self.sn = sn
     itf = itf_lookup(self.vid, self.pid)
     self.usb = usbdev.usbdev()
-    self.usb.open(self.vid, self.pid, interface=itf, serial=self.sn)
+    self.usb.open(self.vid, self.pid, itf=itf, sn=self.sn)
     # get the interface information
     ver = self.get_version()
     assert ver['stlink_v'] == 2, 'only version 2 of stlink is supported'

stlink.py

@@ -28,8 +28,8 @@
 
 # cmsis-dap device
 default_itf = {
-  'name': 'cmsis-dap',
-  #'name': 'jlink',
+  #'name': 'cmsis-dap',
+  'name': 'jlink',
 }
 
 #-----------------------------------------------------------------------------