MMi202: Firmware version history and updates

The following table lists the most significant aspects of the various Firmware versions for MMi202. They are listed with the most recent first. The latest version is available as an rfl file on the SPLat website in the customer support area. We have only listed publicly released versions.

If you are connected to the Internet, click a hot-linked filename below to download it directly from our website.

Caution: Be very sure not to reFlash any of these into an MMi203. We goofed on the MMi203, so it will except an MMi202 Firmware, but it will not work with incorrect firmware.

Version / date rfl file Description
08Mar11

MMi202v3-34.rfl
23Aug10

MMi202v3-29.rfl
  • Various enhancements to Xwire
11Aug10

MMi202v3-28.rfl
  • Dialect 23 support
  • Various enhancements to Xwire
  • Bug: implemented jndexing of FixToMem16S, FixToMem16U, FloatMem16U, and FloatMem16S
  • ModBus made more robust when working with 3rd party devices that are non-compliant with the ModBus 3.5 character time end of message delay.
20Jan10

MMi202v3-24.rfl
  • Dialect 21 support
  • Fast program download support. Works with SPLat/PC 10.21.1 and later
  • OBLCD instructions can be mapped to an external HMI via ModBus
  • CPU temperature readout
25Mar09

MMi202v3-21.rfl
  • Added ModBus Master RTU mode
  • Support for dimmable LCD backlight
  • Improved accuracy of analog outputs
  • Atomic handling of multi-byte variables in Xwire receive
  • Bug fix in boot loader
  • Extended LCD custom characters to allow large format 7-segment digit generation
17Jun08

MMi202v3-20.rfl
  • Fixed Xwire bug
8Oct07

MMi202v3-16.rfl
  • Bug: Reporting wrong version number
29Aug07

MMi202v3-15.rfl
  • Discontinues TSP
V3.13 23Mar07

MMi202v3-13.rfl
  • Dialect 19, adds OBCB
  • Bug fixes
V3.0 N/A Initial release. Dialect 18