Mipex MIPEX-02 1 Series, User Manual

Page: 32 / 38

OPTOSENSE LLC
Design Department
USER MANUAL
SMALL-SIZE EXPLOSIVE GAS MEASURING SENSOR MIPEX-02-
Х-X-X.1 X
File name: ESAT.413347.006 UM v.2.0.docx Revision 2.0 27 August 2015 Page. 32 of 38
THE SOLE PROPERTY OF OPTOSENSE LLC. ANY REPRODUCTION WITHOUT THE WRITTEN PERMISSION OF OPTOSENSE LLC IS PROHIBITED.
C.4. Firmware update
To update sensor firmware use the following procedure and commands:

Send SREV? command and check that current version is able to be updated. If firmware
version is 25.4, make sure that sensor is in OEM mode by sending UART? .

Send UPLOAD and receive U_OK response. Sensor switched to bootloader.

Upload firmware to sensor memory. It
is necessary to make “Erase pages” before loading
application code. Page quantity corresponds to code file size in Kbytes.

Verify uploaded firmware code.
Use “Read memory” command of bootloader.

Turn off the power of sensor and then turn it on. I
f “Jump to user code” function has been
used in bootloader mode to switch the sensor power is not necessary.

Firmware update must be proceed with accordance to following description.
Optosense LLC disclaims all liability for sensor malfunction due to mistakes
committed by user during firmware update.

Firmware version 24.6 is compatible with previous version 24.2 for MIPEX-
02-3-X-X.1 X (
СО
2
) only.

Firmware version 25.6 is compatible with previous versions 25.2 and 25.4 for
MIPEX-02-1-X-X.1 X (CH
4
), MIPEX-02-2-X-X.1 X (
С
3
H
8
), MIPEX-02-4-X-X.1
X (CH
4
/CH
4
+
С
2
Н
6
) only.
The term «compatible» means that sensor performance as well as protocol
commands of previous versions keeps unchanged after finishing of firmware update
process.
Do not use “Mass erase” in bootloader, it will clear all memory and leads to sensor
malfunction.

Description and example of procedure using PC, MIPEX evaluation kit and
STMicroelectronics flash loader software could be found in archive with new
firmware.

More details about algorithms and protocol in bootloader mode could be
found in the documentation
“ AN2606 Application note STM32™
microcontroller system memory boot mode
”
.

For MIPEX-02-3-X-
X.1 X (СО2) proceed sending
ZERO2 only with nitrogen
feeding.