Hi There Everyone
I have a problem....
I've built a circuit that brings out the following lines from the G24 (Java) :
above
rts, rxd, cts, dtr, txd
reset
rxd2, txd2, rts2, cts2
txen, ant_det
ign, on
below
usb_vbus, xusb_dp, xusb_dn
wkupi, wkupo
and all the sim lines.
I can switch the unit on using either ign or on and that works fine.
The sim connections are ok as I can see "RING" when I call the unit.
Plugging UART2 unit into a PC through a MAX232 ic (and using resistor dividers to bring the 5v down to below 3) shows me all the bootup and shutdown messages so I know TXD_N is ok. Cannot seem to send anything through terminal into usart2. Nothing is echoed back when typing into the terminal.
UART1 responds with "G24 KJAVA READY" some seconds after power on. It also sends "RING" and "NO CARRIER" when I call the unit. All characters typed into the terminal is echoed back, so I presume but RX and TX is working fine (local echo is off in term app).
*** but here is my main problem: **
typing "AT<cr>" does not respond with "OK". No AT commands work, I can see what I type, but the G24 seems "command deaf".
I finally gave up and connected the USB, loaded the modem driver from Motorola. The PC detects that it is talking to a G24 and tries toad the modem driver, but after a while it says that the modem might not work! (Win 2000). I'll follow up on this later (might be my OS, will test on another machine sometime) The thing is : I'm trying to connect the G24 to a PIC microprocessor and will have to get the UART to work.
I know that it is probably a hardware / circuit error on my part - but was wondering if anyone had seen a G24 behave in this manner.
thanks for listening
azurensces from South Africa
this is the bootup serial data that is sent on UART2 :
=== service API trace: AmTimeNotifyTimeChangedEvent()
initData -jam address 0x126b77cc : 0x126b77f0
126b77b4 : 126b77cc
126b77f0 : 126bef5c
*** Initializing SMS MO/MT API build for JSR120 version 1.1
*** Initialization succeed
STATES of F6615 DL_DB_FEATURE_IDs NVM:SIM:TTP: 1:0:1
SM_GetNumRootCerts: Total number of KJAVA certs on SIM and NVM (Type-15): 0, 1
STATES of F6615 DL_DB_FEATURE_IDs NVM:SIM:TTP: 1:0:1
[VMproxyStart] proxyId: 0xffffffff
VB: VMproxyDisableIM()
[VMproxyGainFocus]: proxyId = 0xffffffff
VB: Default backlight is ON.
VB: Duration will be not limited.
VB: Vibration is enabled.
VB: BKLT_Restore() Restores Java Settings backlight state.
VB: VMproxyBkltTurnOn()
jbVmVmStartMIDP(vmId=1,heapSize=2036008,heapAddr=0x123f373c)
jbVmVmInitialize(vmId=1,heapSize=2036008,heapAddr=0x123f373c
section bss address: 3f99378 size 4052
section data address: 3f99374 size 4
section bss address: 126b77b4 size 30632
section data address: 126ac730 size 45188
section size data 45192 bss 34684
section save size data 14841 bss 34684
all class blocks 601
instance class blocks 581
array class blocks 20
sizoef class blocks 35660
newHeapAddr=0x123ff90c, newHeapSize=1986392
JBlend[micro] Copyright 2000-2004 Aplix Corporation. All rights reserved.
build date : 2006-11-02_22:22
VM variable initialization.
type: 1
bssAddress: 0x03f99378 bssSize: 0xfd4
dataAddress: 0x03f99374 dataSize: 0x4
initDataAddress: 0x10c47278
-jam address 0x126b77cc : 0x126b77f0
type: 2
bssAddress: 0x126b77b4 bssSize: 0x77a8
dataAddress: 0x126ac730 dataSize: 0xb084
initDataAddress: 0x10c32f88
-jam address 0x126b77cc : 0x126b77f0
126b77b4 : 126b77cc
126b77f0 : 126bef5c
===> jbVmStartMIDP
vmId:1
heapAddr:0x123ff90c
heapSize:1986392
EventHandler:102cf267
vmParamCount:0
vmParams:0x0
vmParamLens:0x0
===> JKT_MIDP_Application
jarAddr:0x0
jarSize:32472
jarRead:0x102cffd1
className:302644465
classNameLen:17
jadAddr:0x0
jadSize:3339
jadRead:0x102cffb5
trusted:1
ExtLib: jarAddress:0x101bcc64 length:611703 jarReader:0x00000000
VM heap 0x123ff920 0x1e4f44
ROMIZE byteCode Size ROM:188672 RAM:49
GCF Extension: Scheme:datagram
GCF Extension: Scheme:socket
GCF Extension: Scheme:ssl
GCF Extension: Scheme:file
GCF Extension: Scheme:comm
GCF Extension: Scheme:wappush
GCF Extension: Scheme:drm
GCF Extension: Scheme:csd
----- JB_VMEVENT_VM_STARTED callback begin.
----- JB_VMEVENT_VM_STARTED callback end.
----- VM JK_VMEVENT_VMPAINTREADY callback begin.
----- VM JK_VMEVENT_VMPAINTREADY callback end.
default_midlet.DM@d590dbc 100
DM: OEM backup MIDlet (Default MIDlet) initializing
DM: Unit is an OEM unit, outputting to standard output only
DM: Info: Retrieving unit information
DM: Info: Default MIDlet version: 2.2.2
DM: Info: Earliest required software version for this DM: G24_G_0C.11.91R
DM: Info: Software version: G24_G_0C.11.95R
DM: Info: Flex version: GCEG24xJ2400E10AB080
DM: Info: Product description: G24 OEM Module
DM: Info: Unit operation mode: java_mode
DM: Info: IMEI: 355832010039078
DM: Info: Date: Sun Feb 11 09:52:52 UTC 2007
DM: Info: Error: Cannot get MSISDN: com.motorola.oem.access.AccessException: Access: Phone Book reading failed
DM: Info: User MIDlet version: No User MIDlet
DM: Info: Last OTA status is success
DM: Info: Run fault data found:
DM: <?xml version="1.0"?>
<RunFault>
<Date>Network clock unavailable</Date>
<Suite>
<Id>130000</Id>
<Name>DefaultMIDlet</Name>
<Vendor><![CDATA[Motorola, Inc.]]></Vendor>
<Version>2.2.2</Version>
</Suite>
<MIDletClassName>default_midlet.DM</MIDletClassName>
<StandardOutput><![CDATA[nput by SMS is enabled
DM: Browser messages listener started
DM: SMS listener started on port 16001
default_midlet.DM@d590dbc 7
DM: Default MIDlet exited
|========== KVM stdout log ended at Network clock unavailable
|========== KVM stdout log started at Network clock unavailable
default_midlet.DM@d590dbc 100
DM: OEM backup MIDlet (Default MIDlet) initializing
DM: Unit is an OEM unit, outputting to standard output only
DM: Info: Retrieving unit information
DM: Info: Default MIDlet version: 2.2.2
DM: Info: Earliest required software version for this DM: G24_G_0C.11.91R
DM: Info: Software version: G24_G_0C.11.95R
DM: Info: Flex version: GCEG24xJ2400E10AB080
DM: Info: Product description: G24 OEM Module
DM: Info: Unit operation mode: java_mode
DM: Info: IMEI: 355832010039078
DM: Info: Date: Sun Feb 11 09:52:52 UTC 2007
DM: Info: Error: Cannot get MSISDN: com.motorola.oem.access.AccessException: Access: Phone Book reading failed
DM: Info: User MIDlet version: No User MIDlet
DM: Info: Last OTA status is success
]]></StandardOutput>
</RunFault>
DM: Info: Fault report address (1): file
DM: Info: Fault report address (2) is empty
DM: Info: Fault report address (3) is empty
DM: Info: Input by SMS is enabled
DM: Browser messages listener started
PUSHREGISTRY: PR_QueryConnectionInfo: sms://:16001
PUSHREGISTRY: PR_QueryConnectionInfo result = -6
DM: SMS listener started on port 16001
DM: Starting fault report
DM: Error: Cannot get MSISDN: com.motorola.oem.access.AccessException: Access: Phone Book reading failed
DM: Writing fault report to file
DM: Fault report was written to file successfully
----- APP JK_VMEVENT_APPSTARTED callback begin.
----- APP JK_VMEVENT_APPSTARTED callback end.
and some more info....
tried the usb on another PC, driver installs fine and "Motorola USB Modem" appears under modems.
connecting to the com port that it installs (com3), no echo, no response.
everything else the same
Contacted Motorola....
Excellent customer support :) The best I've ever received....
Solved all my problems waiting to see if they need to help me further.
The issue was me not reading the manual (RTFM).
On the G24 Java, The midlet by default controls the UART1, 2 and USB.
Need to toggle GPIO 8 for JTool mode and the select ATCmd mode...
Very impressed with them :)
laters....
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