Failed CRC check

[Paul_H]

I have just upgraded my microsquirt v2 from ms2extra3.2.5 to pre3.4alpha2. The upload went fine and when I start TunerStudio v2.6.01 using the new project that I created for this firmware the connection with Microsquirt is established. When I attempt to calibrate the sensors or upload an msq the burn fails because of a CRC mismatch. I have tried uploading the firmware both with and without the bootloader for the same result. If I reflash with 3.2.5 I have no problem configuring the controller and everything returns to normal. Obviously a comms problem but I have nothing so I would appreciate if anyone could throw some light on where I'm messing up.

[LT401Vette]

I don't see any reports of comms issues in that brief log.
Is the crc error prompt consistent on some settings/dialogs or random?
Is there any power cycling or resets of the controller? If you set a gauge to Clock and make sure it continues to count up. If it goes back to 0, then the processor rebooted and RAM based changes are lost.

[Paul_H]

Phil, thankyou for replying. I guess I posted in the wrong section. The burn failure because of a CRC error is consistent across the board for all configuration settings and there are no resets because the clock guage keeps counting up regardless. When I make a settings change it immediately lights the 'lost data' button red and wont allow me to burn the change. If I close the settings window the 'burn page failed CRC check' message is displayed. The only way I can make a configuration change is to power cycle microsquirt and when back online hit the 'send TunerStudio configuration to controller' button in the difference report. Occasionally it write the change immediately but most time I have to keep hitting the button until it eventually writes (sometimes up to 9 or 10 times).

I have managed to successfully configure microsquirt with the new firmware using this method and am now in the tuning phase but I have to admit that it is a real pain in the arse way of doing it.

[LT401Vette]

Have you tried with the 3.3.1 stable firmware?

[Paul_H]

Yes I have tried with 3.3.1a but with the same result as above. I have tried with a different laptop but that didn't help. I can connect fine with shadow dash and log with no problems but I haven't tried uploading a tune file. I am a little reluctant in case I trash what I have already achieved. I can connect with msdroid via bluetooth but it seems flakey as some of the tuning configuration appears to be missing and the throttle position guage is unresponsive although other guages are working fine. Like with TunerStudio I am unable to burn configuration changes in msdroid even though it offers me the opportunity. I am amazed that I have been able to get this firmware installed, configured and working (and it is working just fine).

Just in case you were wondering why I am using this beta firmware, I have an AIM MXL dash that I was hoping to test with the new CAN broadcasting capability of this firmware.

[LT401Vette]

Maybe... Are you using a prolific USB to serial cable? With the new protocol ms2 firmware I have seen some prolific cables behave badly. There is special handling built into the JSSC driver.

In communication settings select USB and Wireless, then RS232 (JSSC)make sure the right port is selected and click select.

See if that makes a difference.

[Paul_H]

The laptop that I use most of the time is an older hp machine with a serial port so I prefer to use a straight serial connection. The other laptop that I tried has no serial port so I use a FTDI usb to serial cable. Both work fine and yield the same result. I tried the JSSC driver as you suggested but the result was still the same.

BTW Phil, thanks for your interest and assistance with this problem.

[LT401Vette]

So your using 2 different laptops, with different serial connections, yet getting this same behavior.

I think we should get a comm debug log.

Under the communications menu, turn days rate down to 1/s, then close TS, delete the TunerStudioAppDebug.txt.

Start TS againunder the communications menu , check comm debug..
Open your project and connect.
Make the crc error happen.

[Paul_H]

Comm debug log attached.

[LT401Vette]

Can you post the msq you are trying to load?

[Paul_H]

msq

[LT401Vette]

Looking through your Comm Debug log, I think we need firmware developer input.

The CRC failure is related to TPS Calibration settings. It seems they are not sticking.

In this trimmed log data, you can see TS writes the tpsMin and Max, got an Ok protocol response, then sends a burn for page 1, got another Ok response, but then on the next crc for the page it does not match TS. When TS reads back the controller data, the written values are not there.

Code: Select all

Time: 0:38.032: Received Instruction: 
5/26/14 8:32:18 AM :Time: 0:38.033: SENT, 17 bytes
x00 x0B x77 x00 x04 x02 x06 x00 x04 x00 x5B x03 x68 x3D xAA x48       ..w.......[.h=.H
xEF                                                                   .

#### x00 x5B = 91
#### x03 x68 = 872


5/26/14 8:32:18 AM :Debug: commThreadExpectedReturnTime set to ms from now: 908
5/26/14 8:32:18 AM :Time: 0:38.153: Received, 3 bytes
x00 x01 x00                                                           ...

5/26/14 8:32:18 AM :Time: 0:38.153: Received, 4 bytes
xD2 x02 xEF x8D                                                       ....

Time: 0:38.154: Processing Complete: 
Time: 0:38.154: Processing Instruction: 
5/26/14 8:32:18 AM :Time: 0:38.155: SENT, 9 bytes
x00 x03 x62 x00 x04 xB3 x7F x02 x45                                   ..b....E

5/26/14 8:32:18 AM :Debug: Burn time:140ms.
5/26/14 8:32:18 AM :Debug: burned page 1
5/26/14 8:32:18 AM :Debug: No Remaining Queue Write instructions
5/26/14 8:32:19 AM :Debug: commThreadExpectedReturnTime set to ms from now: 956
5/26/14 8:32:19 AM :Time: 0:38.295: Received, 3 bytes
x00 x01 x04                                                           ...

5/26/14 8:32:19 AM :Time: 0:38.295: Received, 4 bytes
xD5 x6F x2B x94                                                       .o+.

5/26/14 8:32:19 AM :Debug: Read page time: 219ms.
5/26/14 8:32:19 AM :Warning: Controller page 1 Does not match Local store:
                 Controller x0C x03 xC5 x88                                                       ....                      Local Data Store xCF x21 x66 xAA                                                       ..f.
Differences Detected at the following addresses:
x207, x209, 
or in Decimal:
519, 521, 
Non Matching bytes in quotes:
                          Set 1                                                        Set 2
x0000	  x04   x03   x15   x00   x2E   x0F   x09   x3C 	     x04   x03   x15   x00   x2E   x0F   x09   x3C 
x0008	  x50   x64   x78   x8C   xA0   xFA   x7C   x54 	     x50   x64   x78   x8C   xA0   xFA   x7C   x54 
x0010	  x40   x33   x2C   x02   x02   x8A   x00   x3C 	     x40   x33   x2C   x02   x02   x8A   x00   x3C 
x0018	  x00   x32   x00   x28   x00   x1E   x00   x14 	     x00   x32   x00   x28   x00   x1E   x00   x14 
x0020	  x00   x0A   x00   x00   x00   x00   x00   x00 	     x00   x0A   x00   x00   x00   x00   x00   x00 
x0028	  x00   x00   x00   x00   x03   x84   x00   xC8 	     x00   x00   x00   x00   x03   x84   x00   xC8 
x0030	  x82   x87   xA0   xA0   xA0   x95   x8F   x84 	     x82   x87   xA0   xA0   xA0   x95   x8F   x84 
x0038	  x83   x84   x83   x82   x84   x89   x9D   x9D 	     x83   x84   x83   x82   x84   x89   x9D   x9D 
x0040	  x9B   x95   x8E   x84   x82   x81   x80   x7F 	     x9B   x95   x8E   x84   x82   x81   x80   x7F 
x0048	  x86   x8B   x9B   x9B   x9A   x95   x8D   x82 	     x86   x8B   x9B   x9B   x9A   x95   x8D   x82 
x0050	  x81   x80   x7F   x7F   x87   x8C   x98   x98 	     x81   x80   x7F   x7F   x87   x8C   x98   x98 
x0058	  x96   x93   x8C   x82   x81   x80   x7F   x7E 	     x96   x93   x8C   x82   x81   x80   x7F   x7E 
x0060	  x88   x8D   x96   x95   x93   x93   x8C   x81 	     x88   x8D   x96   x95   x93   x93   x8C   x81 
x0068	  x80   x7F   x7E   x7E   x87   x8A   x91   x8F 	     x80   x7F   x7E   x7E   x87   x8A   x91   x8F 
x0070	  x8D   x8D   x87   x80   x7F   x7E   x7E   x7E 	     x8D   x8D   x87   x80   x7F   x7E   x7E   x7E 
x0078	  x86   x86   x8B   x89   x88   x88   x83   x7F 	     x86   x86   x8B   x89   x88   x88   x83   x7F 
x0080	  x7E   x7E   x7E   x7E   x84   x84   x87   x85 	     x7E   x7E   x7E   x7E   x84   x84   x87   x85 
x0088	  x85   x84   x82   x7E   x7D   x7D   x7D   x7D 	     x85   x84   x82   x7E   x7D   x7D   x7D   x7D 
x0090	  x82   x82   x83   x82   x82   x81   x82   x7D 	     x82   x82   x83   x82   x82   x81   x82   x7D 
x0098	  x7D   x7D   x7D   x7D   x82   x81   x81   x80 	     x7D   x7D   x7D   x7D   x82   x81   x81   x80 
x00A0	  x80   x7F   x7E   x7D   x7D   x7D   x7D   x7C 	     x80   x7F   x7E   x7D   x7D   x7D   x7D   x7C 
x00A8	  x82   x81   x81   x80   x80   x7F   x7E   x7D 	     x82   x81   x81   x80   x80   x7F   x7E   x7D 
x00B0	  x7D   x7D   x7B   x7B   x82   x81   x81   x80 	     x7D   x7D   x7B   x7B   x82   x81   x81   x80 
x00B8	  x80   x7F   x7E   x7D   x7D   x7A   x7A   x7A 	     x80   x7F   x7E   x7D   x7D   x7A   x7A   x7A 
x00C0	  x82   x87   xA0   xA0   xA0   x95   x8F   x84 	     x82   x87   xA0   xA0   xA0   x95   x8F   x84 
x00C8	  x83   x84   x83   x82   x84   x89   x9D   x9D 	     x83   x84   x83   x82   x84   x89   x9D   x9D 
x00D0	  x9B   x95   x8E   x84   x82   x81   x80   x7F 	     x9B   x95   x8E   x84   x82   x81   x80   x7F 
x00D8	  x86   x8B   x9B   x9B   x9A   x95   x8D   x82 	     x86   x8B   x9B   x9B   x9A   x95   x8D   x82 
x00E0	  x81   x80   x7F   x7F   x87   x8C   x98   x98 	     x81   x80   x7F   x7F   x87   x8C   x98   x98 
x00E8	  x96   x93   x8C   x82   x81   x80   x7F   x7E 	     x96   x93   x8C   x82   x81   x80   x7F   x7E 
x00F0	  x88   x8D   x96   x95   x93   x93   x8C   x81 	     x88   x8D   x96   x95   x93   x93   x8C   x81 
x00F8	  x80   x7F   x7E   x7E   x87   x8A   x91   x8F 	     x80   x7F   x7E   x7E   x87   x8A   x91   x8F 
x0100	  x8D   x8D   x87   x80   x7F   x7E   x7E   x7E 	     x8D   x8D   x87   x80   x7F   x7E   x7E   x7E 
x0108	  x86   x86   x8B   x89   x88   x88   x83   x7F 	     x86   x86   x8B   x89   x88   x88   x83   x7F 
x0110	  x7E   x7E   x7E   x7E   x84   x84   x87   x85 	     x7E   x7E   x7E   x7E   x84   x84   x87   x85 
x0118	  x85   x84   x82   x7E   x7D   x7D   x7D   x7D 	     x85   x84   x82   x7E   x7D   x7D   x7D   x7D 
x0120	  x82   x82   x83   x82   x82   x81   x82   x7D 	     x82   x82   x83   x82   x82   x81   x82   x7D 
x0128	  x7D   x7D   x7D   x7D   x82   x81   x81   x80 	     x7D   x7D   x7D   x7D   x82   x81   x81   x80 
x0130	  x80   x7F   x7E   x7D   x7D   x7D   x7D   x7C 	     x80   x7F   x7E   x7D   x7D   x7D   x7D   x7C 
x0138	  x82   x81   x81   x80   x80   x7F   x7E   x7D 	     x82   x81   x81   x80   x80   x7F   x7E   x7D 
x0140	  x7D   x7D   x7B   x7B   x82   x81   x81   x80 	     x7D   x7D   x7B   x7B   x82   x81   x81   x80 
x0148	  x80   x7F   x7E   x7D   x7D   x7A   x7A   x7A 	     x80   x7F   x7E   x7D   x7D   x7A   x7A   x7A 
x0150	  xB4   xB4   xA0   x96   x87   x7D   x71   x6C 	     xB4   xB4   xA0   x96   x87   x7D   x71   x6C 
x0158	  x66   x64   x14   x32   x69   x96   x00   x00 	     x66   x64   x14   x32   x69   x96   x00   x00 
x0160	  x00   x00   x00   xA0   x00   x96   x00   x8C 	     x00   x00   x00   xA0   x00   x96   x00   x8C 
x0168	  x00   x82   x00   x78   x00   x69   x00   x5A 	     x00   x82   x00   x78   x00   x69   x00   x5A 
x0170	  x00   x4B   x00   x3C   x00   x28   x01   xF4 	     x00   x4B   x00   x3C   x00   x28   x01   xF4 
x0178	  x03   x20   x04   x4C   x05   x78   x07   xD0 	     x03   x20   x04   x4C   x05   x78   x07   xD0 
x0180	  x0A   x28   x0C   x1C   x0E   x74   x10   xCC 	     x0A   x28   x0C   x1C   x0E   x74   x10   xCC 
x0188	  x13   x24   x15   x18   x17   x70   x01   xF4 	     x13   x24   x15   x18   x17   x70   x01   xF4 
x0190	  x03   x20   x04   x4C   x05   x78   x07   xD0 	     x03   x20   x04   x4C   x05   x78   x07   xD0 
x0198	  x0A   x28   x0C   x1C   x0E   x74   x10   xCC 	     x0A   x28   x0C   x1C   x0E   x74   x10   xCC 
x01A0	  x13   x24   x15   x18   x17   x70   x01   x2C 	     x13   x24   x15   x18   x17   x70   x01   x2C 
x01A8	  x01   x5E   x01   xC2   x01   xF4   x02   x26 	     x01   x5E   x01   xC2   x01   xF4   x02   x26 
x01B0	  x02   x58   x02   xBC   x02   xEE   x03   x20 	     x02   x58   x02   xBC   x02   xEE   x03   x20 
x01B8	  x03   x52   x03   xB6   x03   xE8   x01   x2C 	     x03   x52   x03   xB6   x03   xE8   x01   x2C 
x01C0	  x01   x5E   x01   xC2   x01   xF4   x02   x26 	     x01   x5E   x01   xC2   x01   xF4   x02   x26 
x01C8	  x02   x58   x02   xBC   x02   xEE   x03   x20 	     x02   x58   x02   xBC   x02   xEE   x03   x20 
x01D0	  x03   x52   x03   xB6   x03   xE8   xFE   x70 	     x03   x52   x03   xB6   x03   xE8   xFE   x70 
x01D8	  xFF   x38   x00   x00   x00   xC8   x01   x90 	     xFF   x38   x00   x00   x00   xC8   x01   x90 
x01E0	  x02   x58   x03   x20   x03   xE8   x05   x14 	     x02   x58   x03   x20   x03   xE8   x05   x14 
x01E8	  x06   x40   x08   x34   x0F   xA0   x1F   x40 	     x06   x40   x08   x34   x0F   xA0   x1F   x40 
x01F0	  x3C   x28   x00   x00   x00   x00   x00   x00 	     x3C   x28   x00   x00   x00   x00   x00   x00 
x01F8	  x00   x00   x00   x5D   x0A   x31   x00   x00 	     x00   x00   x00   x5D   x0A   x31   x00   x00 
x0200	  x00   x64   x00   x00   x00   x64   x00  "x00"	     x00   x64   x00   x00   x00   x64   x00  "x5B"
x0208	  x03  "xFF"  x00   x01   x01   x29   x00   x00 	     x03  "x68"  x00   x01   x01   x29   x00   x00 
x0210	  x00   x64   x00   x5D   x0A   x31   x00   x00 	     x00   x64   x00   x5D   x0A   x31   x00   x00 
x0218	  x00   x00   x00   x00   x01   xF4   x00   x14 	     x00   x00   x00   x00   x01   xF4   x00   x14 
x0220	  x32   x46   x19   x00   x03   x05   x01   x7F 	     x32   x46   x19   x00   x03   x05   x01   x7F 
x0228	  x00   xFA   x00   x32   x00   x64   x00   x05 	     x00   xFA   x00   x32   x00   x64   x00   x05 
x0230	  x01   x00   x00   x00   x00   x00   x03   xE8 	     x01   x00   x00   x00   x00   x00   x03   xE8 
x0238	  x04   xB0   x00   x03   xE8   x00   x64   x06 	     x04   xB0   x00   x03   xE8   x00   x64   x06 
x0240	  x07   x00   x07   xD0   x00   x64   x1E   x82 	     x07   x00   x07   xD0   x00   x64   x1E   x82 
x0248	  x01   x90   x02   x64   x02   xBC   x02   xBC 	     x01   x90   x02   x64   x02   xBC   x02   xBC 
x0250	  x64   x00   x01   x10   x01   x0F   x8C   x00 	     x64   x00   x01   x10   x01   x0F   x8C   x00 
x0258	  x00   x04   x05   x78   x06   x40   x05   x14 	     x00   x04   x05   x78   x06   x40   x05   x14 
x0260	  x3C   x8C   x02   x01   x0A   xC8   x42   x4B 	     x3C   x8C   x02   x01   x0A   xC8   x42   x4B 
x0268	  x0C   x00   x00   x04   x03   x84   x32   x32 	     x0C   x00   x00   x04   x03   x84   x32   x32 
x0270	  x32   x3C   x32   x50   x32   x00   x01   x01 	     x32   x3C   x32   x50   x32   x00   x01   x01 
x0278	  x01   x0A   x01   xF4   x21   x78   x08   x42 	     x01   x0A   x01   xF4   x21   x78   x08   x42 
x0280	  x32   x03   xE8   x04   xB0   x01   x04   x1A 	     x32   x03   xE8   x04   xB0   x01   x04   x1A 
x0288	  x03   x20   x03   xE8   x17   x70   x00   x64 	     x03   x20   x03   xE8   x17   x70   x00   x64 
x0290	  x17   x70   x02   x71   x00   x96   x00   x93 	     x17   x70   x02   x71   x00   x96   x00   x93 
x0298	  x00   x07   x07   x07   x07   x00   x02   x00 	     x00   x07   x07   x07   x07   x00   x02   x00 
x02A0	  x0A   x00   x3A   x00   x4B   x00   x00   x07 	     x0A   x00   x3A   x00   x4B   x00   x00   x07 
x02A8	  xD0   x18   x80   x00   x00   x00   x00   x00 	     xD0   x18   x80   x00   x00   x00   x00   x00 
x02B0	  x00   x03   x20   x00   x00   x03   xE8   x00 	     x00   x03   x20   x00   x00   x03   xE8   x00 
x02B8	  x00   x00   x00   xA3   x00   x01   x90   x03 	     x00   x00   x00   xA3   x00   x01   x90   x03 
x02C0	  x84   x07   x08   x07   x08   x07   x08   x07 	     x84   x07   x08   x07   x08   x07   x08   x07 
x02C8	  x08   x02   x58   x02   x58   x05   x05   x05 	     x08   x02   x58   x02   x58   x05   x05   x05 
x02D0	  x00   x00   x00   x00   x00   x00   x00   x00 	     x00   x00   x00   x00   x00   x00   x00   x00 
x02D8	  x00   x00   x00   x00   x1E   x0D   x00   x01 	     x00   x00   x00   x00   x1E   x0D   x00   x01 
x02E0	  xC2   x00   x03   x84   x01   x00   x00   x00 	     xC2   x00   x03   x84   x01   x00   x00   x00 
x02E8	  x00   x00   x00   x00   x00   x00   x0A   x01 	     x00   x00   x00   x00   x00   x00   x0A   x01 
x02F0	  x05   x00   xC8   x00   x00   x00   x00   x00 	     x05   x00   xC8   x00   x00   x00   x00   x00 
x02F8	  x00   x00   x00   x3E   x3E   x3E   x3E   x3E 	     x00   x00   x00   x3E   x3E   x3E   x3E   x3E 
x0300	  x3E   x3E   x3E   x3E   x3E   x3E   x3E   x3E 	     x3E   x3E   x3E   x3E   x3E   x3E   x3E   x3E 
x0308	  x3E   x20   x20   x20   x20   x20   x20   x20 	     x3E   x20   x20   x20   x20   x20   x20   x20 
x0310	  x00   x00   x00   x00   x00   x00   x00   x01 	     x00   x00   x00   x00   x00   x00   x00   x01 
x0318	  x01   x01   x01   x01   x01   x01   x00   x00 	     x01   x01   x01   x01   x01   x01   x00   x00 
x0320	  x00   x00   x00   x00   x00   x00   x00   x00 	     x00   x00   x00   x00   x00   x00   x00   x00 
x0328	  x00   x00   x00   x00   x00   x00   x00   x00 	     x00   x00   x00   x00   x00   x00   x00   x00 
x0330	  x00   x00   x00   x00   x00   x00   x00   x00 	     x00   x00   x00   x00   x00   x00   x00   x00 
x0338	  x00   x00   x00   x00   x00   x00   x00   x00 	     x00   x00   x00   x00   x00   x00   x00   x00 
x0340	  x00   x00   x00   x00   x00   x00   x00   x00 	     x00   x00   x00   x00   x00   x00   x00   x00 
x0348	  x00   x00   x00   x00   x00   x00   x00   x00 	     x00   x00   x00   x00   x00   x00   x00   x00 
x0350	  x00   x00   x00   x00   x00   x00   x00   x00 	     x00   x00   x00   x00   x00   x00   x00   x00 
x0358	  x00   x00   x00   x00   x00   x00   x00   x00 	     x00   x00   x00   x00   x00   x00   x00   x00 
x0360	  x00   x00   x00   x00   x00   x00   x00   x00 	     x00   x00   x00   x00   x00   x00   x00   x00 
x0368	  x00   x00   x00   x00   x00   x00   x00   x00 	     x00   x00   x00   x00   x00   x00   x00   x00 
x0370	  x00   x00   x00   x00   x00   x00   x00   x00 	     x00   x00   x00   x00   x00   x00   x00   x00 
x0378	  x00   x00   x00   x00   x00   x00   x00   x00 	     x00   x00   x00   x00   x00   x00   x00   x00 
x0380	  x01   x00   x00   x14   x00   x64   x14   x00 	     x01   x00   x00   x14   x00   x64   x14   x00 
x0388	  x00   x0A   x0F   xA0   x00   x32   x96   x64 	     x00   x0A   x0F   xA0   x00   x32   x96   x64 
x0390	  xA3   x00   x00   xC8   x00   x00   x00   x00 	     xA3   x00   x00   xC8   x00   x00   x00   x00 
x0398	  x00   x00   x00   x00   x00   x00   x00   x00 	     x00   x00   x00   x00   x00   x00   x00   x00 
x03A0	  x64   x1E   x0A   x02   x14   x1E   x02   x00 	     x64   x1E   x0A   x02   x14   x1E   x02   x00 
x03A8	  x02   xBC   x02   xBC   x0D   xAC   x01   xF4 	     x02   xBC   x02   xBC   x0D   xAC   x01   xF4 
x03B0	  x03   xE8   x07   xD0   x0B   xB8   x0F   xA0 	     x03   xE8   x07   xD0   x0B   xB8   x0F   xA0 
x03B8	  x13   x88   x00   xC8   x00   xC8   x00   xC8 	     x13   x88   x00   xC8   x00   xC8   x00   xC8 
x03C0	  x00   xC8   x00   xC8   x00   xC8   x00   x24 	     x00   xC8   x00   xC8   x00   xC8   x00   x24 
x03C8	  x01   x00   x00   x01   x0A   x00   x09   xC4 	     x01   x00   x00   x01   x0A   x00   x09   xC4 
x03D0	  x13   x88   x00   x00   x00   x23   x02   x14 	     x13   x88   x00   x00   x00   x23   x02   x14 
x03D8	  x00   x00   x00   x00   x14   x04   x00   x06 	     x00   x00   x00   x00   x14   x04   x00   x06 
x03E0	  x06   x00   x01   x04   x05   x00   x00   x3C 	     x06   x00   x01   x04   x05   x00   x00   x3C 
x03E8	  x00   x36   x00   x31   x00   x2C   x00   x26 	     x00   x36   x00   x31   x00   x2C   x00   x26 
x03F0	  x00   x20   x00   x1B   x00   x15   x00   x0D 	     x00   x20   x00   x1B   x00   x15   x00   x0D 
x03F8	  x00   x05   x02   x5A   x00   x64   x00   x64 	     x00   x05   x02   x5A   x00   x64   x00   x64 

5/26/14 8:32:19 AM :Info: Retrying CRC call to see if it agrees after read:
5/26/14 8:32:19 AM :Debug: commThreadExpectedReturnTime set to ms from now: 956
5/26/14 8:32:19 AM :Time: 0:38.914: SENT, 13 bytes
x00 x07 x6B x00 x04 x00 x00 x00 x04 xE6 x30 xA5 xB8                   ..k.......0..

5/26/14 8:32:19 AM :Info: CRC matches fine. 
5/26/14 8:32:19 AM :Debug:    CRC from controller page 1:x0C x03 xC5 x88                                                       ....
5/26/14 8:32:19 AM :Debug:    Local Data CRC for page 1: x0C x03 xC5 x88                                                       ....
5/26/14 8:32:19 AM :Debug: Writing the last 0 comm interactions including the burn, crc and page read to the log file here:
5/26/14 8:32:19 AM :Debug: Real OchDelay for ms2extra_pre3.4alpha2: 120, timeout=300
5/26/14 8:32:19 AM :Debug: commThreadExpectedReturnTime set to ms from now: 884
5/26/14 8:32:19 AM :Time: 0:38.934: Received, 3 bytes
x00 x05 x00                                                           ...

[jsmcortina]

Looking through your Comm Debug log, I think we need firmware developer input.

I draw a blank.

I tested the same version firmware with the same min/max values. No problems for me.

James

[Paul_H]

In this log the CRC failure is only related to TPS calibration because that is the first thing that I did after loading the firmware and going online. I shutdown microsquirt after this in order to keep the log short for attachment. In fact I get the same CRC failure on all configuration changes. On one occasion while trying to upload an msq I got a failure on pages 1, 2, and 3, a successful write on 4 and five and a failure on 6 and 7 but this result was not repeated on other attempts. At the moment I have gone back to 3.2.5 because it works fine and allows me to use the bike but I have borrowed a v3 microsquirt to continue trying to find a solution. I am getting the same results with this controller. I loaded pre3.4 alpha3 on the v3 successfully but struggled to get any calibrations or configuration changes to stick at all so I reflashed it with 3.3.1a and the only way I can write any changes is to go offline and then back online and attempt to send the TunerStudio changes in the difference report to the controller. With a bit of patients I have managed to get it fully configured. It seems to me that I only have a problem with firmware versions after 3.2.5.

[jsmcortina]

There must be something wrong with your communications setup. Otherwise everyone would have the problem. However, what the problem is... I'm not sure.

James

[LT401Vette]

What would concern me is that if it is a communications issue, going back to 3.2.5 may just cover up a problem, not fix it. 3.2.5 doesn't have an error checking protocol. With your 3.2.5 project, is CRC Check active in the project properties?

But on the other hand, based on your log there were no protocol errors. All communications appear to be successful.

[Paul_H]

CRC checking is deactivated for 3.2.5. With 3.3.1a which I am currently using with the v3 microsquirt on the bike, I noticed that as soon as I go online the 'lost data' and 'need burn' indicators in TunerStudio turn red. Looking at the debug log it is clear to see that there are CRC mismatches at this point. I still don't understand why the CRC matches fine on some pages and not on the others.

[LT401Vette]

Crc mismatches during interrogation are commonly normal and nothing to worry about. Any unmapped data on the page can cause that.

The data lost indicator coming on is not normal if the controller just powered on and you connected. That should only happen if there where unburned changes when you disconnected last and there was no power cycle.

If you turn crc checking on with 3.2.5 do you get crc errors again?

[Paul_H]

The data lost indicator coming on is not normal if the controller just powered on and you connected. That should only happen if there where unburned changes when you disconnected last and there was no power cycle.

That makes sense except that this happens every time that the controller powers up and goes online regardless of what happened in the previous online session.

I will do as you ask with 3.2.5 but it will have to wait until tomorrow as it is very late here now and I need to reconnect the other microsquirt to do this test. I have a feeling that the penny will drop soon about what I am overlooking or doing wrong.

[Paul_H]

Activated CRC checking with 3.2.5 and there were no CRC errors with the configuration changes that I made and burns proceeded as normal.