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Searching bl only works once per reset [solved] - Printable Version

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+--- Thread: Searching bl only works once per reset [solved] (/showthread.php?tid=538)

Searching bl only works once per reset [solved] - opatagio - 2012-12-10

Hello

I've encountered a problem when using 18F67K22 with the latest version of ds30loader. After making the necessary changes to the source files I program the mcu with the bootloader hex-file. Directly after reset of the mcu I press the 'Check for bl' button and it reports firmware version and mcu model. However, if I press the button again it times out.
If I press the 'Write'-button directly after resetting the mcu it reports bl ready and that it found my device but when it's about to start writing it times out.
Im using a baud rate of 115200 and checking the signals with my logic analysator the communication itself looks OK. Also verified hardware and speed setup with my main program where communication works flawless. But for some reason the bootloader stops responding after it sent one packet, the first one.

This is the ouput after pressing 'Write' with option 'Write flash':
Code:
Initiating write...
      Searching for bl .
      Found PIC18F67K22 fw ver. 3.0.2
      Waiting for the boot loader to be ready...ok
      Parsing hexfile...
            File timestamp: 2012-12-08 15:54:34
            Opening hexfile...ok
            Validating hexfile...ok
            Hex file successfully parsed
      Writing flash....response timed outfailed
      Tx 7 bytes / Rx 4 bytes / 3,3s
      Write failed

Attached is the firmware 18F sources.

RE: Searching bl only works once per reset - opatagio - 2012-12-17

Updating with some output from the gui with 'Debug mode' activated.

Pressing the 'Write'-button just after mcu reset while flashed with only bootloader firmware.
Code:
Initiating write...
      Creating port: USB Serial Port (COM11)
      Opening port USB Serial Port (COM11)@115200
      Searching for bl .
      Found PIC18F67K22 fw ver. 3.0.2
      Bootloader placement/size: 9/9
      Waiting for the boot loader to be ready...ok
      Hex file successfully parsed in 2ms
      Writing flash....
            Erasing page 0 @ 0x0000...response timed out
            Write flash failed
      Closing port
      Tx 7 bytes / Rx 4 bytes / 3,2s
      Write failed

Second output also with Debug mode activated in the gui
Code:
Initiating write...
      Creating port: USB Serial Port (COM11)
      Opening port USB Serial Port (COM11)@115200
      Searching for bl .
      Found PIC18F67K22 fw ver. 3.0.2
      Bootloader placement/size: 9/9
      Waiting for the boot loader to be ready...ok
      Parsing hexfile...
            File timestamp: 2012-12-17 15:16:26
            Opening hexfile...ok
            Validating hexfile...ok
            Goto user app address: 0x1FB7C
            User app address: 0xB3D2
            Flash row 0 is used, 0x00 - 0x7F
            Flash row 1 is used, 0x80 - 0xFF
            Flash row 2 is used, 0x100 - 0x17F
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            Flash row 153 is used, 0x4C80 - 0x4CFF
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            Flash row 155 is used, 0x4D80 - 0x4DFF
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            Flash row 164 is used, 0x5200 - 0x527F
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            Flash row 246 is used, 0x7B00 - 0x7B7F
            Flash row 247 is used, 0x7B80 - 0x7BFF
            Flash row 248 is used, 0x7C00 - 0x7C7F
            Flash row 249 is used, 0x7C80 - 0x7CFF
            Flash row 250 is used, 0x7D00 - 0x7D7F
            Flash row 251 is used, 0x7D80 - 0x7DFF
            Flash row 252 is used, 0x7E00 - 0x7E7F
            Flash row 253 is used, 0x7E80 - 0x7EFF
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            Flash row 255 is used, 0x7F80 - 0x7FFF
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            Flash row 258 is used, 0x8100 - 0x817F
            Flash row 259 is used, 0x8180 - 0x81FF
            Flash row 260 is used, 0x8200 - 0x827F
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            Flash row 283 is used, 0x8D80 - 0x8DFF
            Flash row 284 is used, 0x8E00 - 0x8E7F
            Flash row 285 is used, 0x8E80 - 0x8EFF
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            Flash row 287 is used, 0x8F80 - 0x8FFF
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            Flash row 291 is used, 0x9180 - 0x91FF
            Flash row 292 is used, 0x9200 - 0x927F
            Flash row 293 is used, 0x9280 - 0x92FF
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            Flash row 295 is used, 0x9380 - 0x93FF
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            Flash row 309 is used, 0x9A80 - 0x9AFF
            Flash row 310 is used, 0x9B00 - 0x9B7F
            Flash row 311 is used, 0x9B80 - 0x9BFF
            Flash row 312 is used, 0x9C00 - 0x9C7F
            Flash row 313 is used, 0x9C80 - 0x9CFF
            Flash row 314 is used, 0x9D00 - 0x9D7F
            Flash row 315 is used, 0x9D80 - 0x9DFF
            Flash row 316 is used, 0x9E00 - 0x9E7F
            Flash row 317 is used, 0x9E80 - 0x9EFF
            Flash row 318 is used, 0x9F00 - 0x9F7F
            Flash row 319 is used, 0x9F80 - 0x9FFF
            Flash row 320 is used, 0xA000 - 0xA07F
            Flash row 321 is used, 0xA080 - 0xA0FF
            Flash row 322 is used, 0xA100 - 0xA17F
            Flash row 323 is used, 0xA180 - 0xA1FF
            Flash row 324 is used, 0xA200 - 0xA27F
            Flash row 325 is used, 0xA280 - 0xA2FF
            Flash row 326 is used, 0xA300 - 0xA37F
            Flash row 327 is used, 0xA380 - 0xA3FF
            Flash row 328 is used, 0xA400 - 0xA47F
            Flash row 329 is used, 0xA480 - 0xA4FF
            Flash row 330 is used, 0xA500 - 0xA57F
            Flash row 331 is used, 0xA580 - 0xA5FF
            Flash row 332 is used, 0xA600 - 0xA67F
            Flash row 333 is used, 0xA680 - 0xA6FF
            Flash row 334 is used, 0xA700 - 0xA77F
            Flash row 335 is used, 0xA780 - 0xA7FF
            Flash row 336 is used, 0xA800 - 0xA87F
            Flash row 337 is used, 0xA880 - 0xA8FF
            Flash row 338 is used, 0xA900 - 0xA97F
            Flash row 339 is used, 0xA980 - 0xA9FF
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            Flash row 343 is used, 0xAB80 - 0xABFF
            Flash row 344 is used, 0xAC00 - 0xAC7F
            Flash row 345 is used, 0xAC80 - 0xACFF
            Flash row 346 is used, 0xAD00 - 0xAD7F
            Flash row 347 is used, 0xAD80 - 0xADFF
            Flash row 348 is used, 0xAE00 - 0xAE7F
            Flash row 349 is used, 0xAE80 - 0xAEFF
            Flash row 350 is used, 0xAF00 - 0xAF7F
            Flash row 351 is used, 0xAF80 - 0xAFFF
            Flash row 352 is used, 0xB000 - 0xB07F
            Flash row 353 is used, 0xB080 - 0xB0FF
            Flash row 354 is used, 0xB100 - 0xB17F
            Flash row 355 is used, 0xB180 - 0xB1FF
            Flash row 356 is used, 0xB200 - 0xB27F
            Flash row 357 is used, 0xB280 - 0xB2FF
            Flash row 358 is used, 0xB300 - 0xB37F
            Flash row 359 is used, 0xB380 - 0xB3FF
            Flash row 1014 is used, 0x1FB00 - 0x1FB7F
            Config word 0 is used, value: 0x08
            Config word 1 is used, value: 0x13
            Config word 2 is used, value: 0x14
            Config word 3 is used, value: 0x22
            Config word 4 is used, value: 0x00
            Config word 5 is used, value: 0x88
            Config word 6 is used, value: 0x81
            Config word 8 is used, value: 0xFF
            Config word 9 is used, value: 0xC0
            Config word 10 is used, value: 0xFF
            Config word 11 is used, value: 0xE0
            Config word 12 is used, value: 0xFF
            Config word 13 is used, value: 0x40
            Bootloader start address: 0x1FB80
            Bootloader end address: 0x1FFFF
            Bootloader start page: 1015
            Bootloader end page: 1023
            Bootloader start row: 1015
            Bootloader end row: 1023
            Hex file successfully parsed in 40ms
      Writing flash....
            Erasing page 0 @ 0x0000...response timed out
            Write flash failed
      Closing port
      Tx 7 bytes / Rx 4 bytes / 3,2s
      Write failed


RE: Searching bl only works once per reset - Mikael Gustavsson - 2012-12-17

Hello,
-Have you tried with the watchdog disabled?
-Does the errata contain any relevant items?

RE: Searching bl only works once per reset - opatagio - 2012-12-18

Hi

- watchdog has been both activated and de-activated with same result as above.
- errata of this device states that in synchronous mode with high baudrates the data may become corrupt. However this bl works in async mode and my application itself has shoveled some hundred thousands packets with the same uart settings I specified in the bl. So that should be a non-issue here.

So far I have tried the usual stuff, change baudrate, fosc source, disable/enable PLL, triple checked the config words etc...

I will start a more indepth search to find this problem tonight. Will have to crosscheck the source files of this bl project with the sources I got working on another device to begin with and if there's no apparant error/difference I'll go with old "trig-led" Smile

RE: Searching bl only works once per reset - opatagio - 2012-12-18

Ok, quick update.

I could not see any difference (except mcu, and speed) between my current project source compared to the earlier source which is confirmed to work on a 25K20/22 mcu.

As I continued to measure and try different settings I added a bsf command in the user code space to the mcu pin (RD7) that controls a relay on my board. Basically I wanted to hear the click when the relay switches state as a reassurance that the user code space is executed without having to measure.
Anyways, the relay switches state upon startup and I continue by pressing the 'Write'-button.
What happens here is puzzling me, the relay drops again as if mcu gets reset. So I started measure the pins and sure enough, everytime I press 'Write' the mcu resets and gets stuck there. Only way to bring it out of that state is cycle power or MCLR-pin.
This does not occur with 'Check BL' and config STVREN On or Off makes no difference.

RE: Searching bl only works once per reset - Mikael Gustavsson - 2012-12-19

Could you please try using the attached uart.inc file.
Thanks

RE: Searching bl only works once per reset - opatagio - 2012-12-20

Your attached file, uart.inc, seems to do the trick. So far I can verify that 'Check bl' and 'Write' works like a charm. I will do some more tests with Reset commands, power off/mclr reset etc... But so far it is working great.