Download this firmware file for your controller. More information about the upgrade process can be found in the Knowledge Base<\/a>.<\/p>\n\n\n\n <\/p>\n\n\n\n Download then run SPLat reFlash on your PC. This tool will upload the firmware to your SPLat controller. You will need a serial port or USB to serial adaptor<\/a> and may also need a PC232 programming cable<\/a>.<\/p>\n\n\n\n************************* MS120 Revision History ***********************************\n*\n* V3-00 5\/12\/2006 Initial release\n*\n* V3-10 12\/1\/2007 Bug fixed in PERMSTORE module.\n*\n* V3-11 1\/2\/2007 Bug fixed in the STSCALE mechanism which would prevent the\n* correct functioning of this instruction with certain numbers. OBCB multi \n* channel software counter module added, 8 channels implemented on inputs \n* 0 - 7. Handling of expansion I\/O altered to spread the processor interrupt \n* loading over several timer interrupt cycles.\n*\n* V3-12 10\/8\/2007 Bug fixed which caused the MS120 to do 5 shifts to update expansion\n* I\/O instead of four shifts. This did not cause any problems but wastes CPU time.\n* Xwire V1-1 expansion protocol added. PWM frequency can now be set by SPLat program \n* using an SPxCmd1 command. Task que timer base can be set between 1 - 255ms by an \n* SPxCmd1 command (default is 10ms). TSP interface has been removed.\n*\n* V3-13 29\/8\/2007 Bug fixed in Xwire which would occasionally cause the Xwire UART to stream\n* if the unit had been running as an Xwire master and a new program was downloaded to\n* the board which also set the board to Xwire master operation.\n*\n* V3-14 15\/2\/2008 A new CPU call SPxPoll1 (Argument=7) returns the number of tasks running in the SPLat task que. \n* \"Reason for reset\" byte now has bit 0 implemented which is set when the SPLat interpreter encounters the \n* new \"WarmBoot\" instruction. The OBCB peripheral now has the ability to have the number of channels specified \n* and an offset added to allow the OBCB inputs to be positioned anywhere in the controllers memory map, \n* including expansion I\/O. The form of the instruction is \"$F5 $2C NumberOfChannels StaringInput\". The number \n* of channels is limited by the compilation variable \"OBCB_channels\".\n*\n* V3-15 9\/5\/2008 A vulnerability has been fixed in the Xwire protocol sequencer that could cause the Xwire module\n* to stream TX characters if a timing error occured in the received message (ie: message not arriving within\n* Xwire time parameters). The Xwire comms receive structure now uses an interrupt and small circular buffer\n*\t\t\t\t\t to eliminate comms errors when the receive baud rate is slightly higher than that of the MS120. A bug has\n*\t\t\t\t\t been fixed in the MemToUV and UVtoMem instructions which would not allow the last byte to be accessed. The\n*\t\t\t\t\t FixtoU instruction now preserves W. An interaction between LCD writes and the front panel push buttons has\n*\t\t\t\t\t been fixed. Under certain circumstances, push button inputs could be falsely triggered by LCD screen updates.\n*\n* V3-16 10\/6\/2008 Timing issue fixed when using the SPxTxfrU instruction, the symptom of which was that input data\n* would be corrupted when using this instruction.\n*\n* V3-17 16\/6\/2008 Bug fixed in Xwire protocol which would cause long corrupted messages to be sent if the data length\n* was set to zero in either slave or master mode. The FixtoU instruction now really does preserve W as was\n* advertised as fixed in version 3-15.\n*\n* V3-18 19\/6\/2008 High drive strength enabled on all PWM pins used in this design to improve the accuracy of the generated\n* analogue voltages.\n*\n* V3-19 25\/6\/2008 Xwire protocol modified so that transmit messages and received data is only tranfered to and from\n* SPLat memory between the execution of SPLat instructions. This has been done to make it easier for the user\n* to transfer multibyte variables (ie: floating point) without corruption.\n*\n* V3-20 11\/3\/2009 High drive strength enabled on all PWM pins used in this design to improve the accuracy of the generated\n* analogue voltages. LCD driver now loads more of the user character RAM cells to allow the displaying of large 7 \n* segment data on 4 line LCDs (3 lines used for displaying characters. MODBUS master implemented. Bootloader bug fixed\n* which could prevent successful reflashing of a board if NVEM alters memory to something other than $FF after the end\n* of the SPLat program. Demo program feature removed to free up space and resources. User program space reduced by 4096\n* bytes to allow for future code expansion. User now has 22,016 bytes for program and NVEM storage (previously 26,112\n* bytes). LCD back light can now be PWM controlled allowing the LCD to be dimmed or turned off after a programmed amount\n* of time (0-255 minutes). New CPU calls allow the operating brightness, dimmed brightness and time to dimmed setting to \n* be set by the user. Pressing any of the front panel buttons will cause the timer to be re-started and the display \n* to be brought up to the operating brightness level independant of the user program.\n*\n* V3-20 24\/3\/2009 Re-assembled with version 1.2 bootloader to enable code security.\n*\n* V3-21 2\/6\/2009 Re-instated the user program memory size of 26,112 bytes.\n*\n* V3-22 8\/1\/2010 IEEE floating point format <--> SPLat floating point format conversion routines added to make the use of touch\n* screens easier. 16 bit signed and unsigned <--> SPLat floating point routines added to make working with touch screens \n* easier. MODBUS Slave Function Type = 3, \"Read Memory\" using address 2000 --> 2039 returns the contents of the SPLat LCD \n* buffer to allow existing \"oblcd\" instructions to display text on the touch screen under program control. MODBUS memory \n* referencing instructions in WORD mode now have the starting address multiplied by 2 when processed if the address is in\n* the range 3000 - 3999. The ensures correct behaviour when using SPLat products with touch screens and other MODBUS \n* devices. Function Types 6 (preset single register) and 16 (preset multiple registers) are affected in MASTER mode. SLAVE \n* functions 3 (Read memory), 6 (preset single register) and 16 (preset multiple registers) are affected. \n* An SPxPoll4 0,!CPU returns the floating point temperature of the CPU chip in \ufffdC at locations U(0) --> U(3). \n* An SPxPoll4 1,!CPU returns the floating point temperature of the CPU chip in \ufffdF at locations U(0) --> U(3).\n* Modified SPLat comms to allow much faster download speeds (up to 30 times faster). This firmware is fully backward\n* compatible with older versions of SPLatPC in terms of downloads, but to get the benefit of the faster downloads,\n* the user will need SPLatPC Version 10.21.1 or higher.\n*\n* V3-23 25\/3\/2010 Fixed a bug in the comms RX interrupt handler which would cause the board to reset if being used in any UART\n* profile with parity enabled. MODBUS RX handler modified to be active all the time rather than only after the UART\n* transmitter has finished sending. This has been done because several MODBUS devices we have used ignore the MODBUS\n* specification and reply immediately rather than waiting 3.5 character times before replying. MODBUS master mode is now\n* capable of sending the LCD buffer using function 16 (preset muliple registers) if the address range is set to 2000 - 2079.\n* The CommRunScript and CommHaltScr commands will now wait for the MODBUS master script parser to be actually stopped\n* before HALTing or changing the script to be executed, respectively.\n*\n* V3-24 10\/5\/2010 Jindexing has been applied to the instructions \"FixToMem16S\", \"FixToMem16U\", \"FloatMem16U\" and \"FloatMem16S\". \n* A Bug has been fixed in the signed versions of these instructions. New instruction added \"fSTSinceMark\" which loads W \n* with the time since the tasks private timer was set using a \"marktime\" instruction. This instruction only works in the \n* task que. Board reports SPLat dialect 22.\n* Added counter which is incremented whenever a successful transaction is completed (Xwire slave mode)\n* or whenever the end of script table is encountered (Xwire master mode). A new instruction is able to \n* read the value of this counter and clears the counter to zero. Two new instructions have been added \n* which facillitate the changing of Xwire modes and scripts while a program is running. XwireStop will\n* command the Xwire communication module to stop after the current transaction and return to an idle\n* state. XwirePollIdle will return X=true if the Xwire comms module is idle. The current Xwire slave\n* and Xwire master configuration instructions work as previous but will stop the Xwire comms module and\n* stall the SPLat interpreter until the Xwire comms module is actually idle (has completed current\n* transaction). For applications where the SPLat interpreter must not be stalled, the user should stop\n* Xwire comms, poll until it is idle then run the configuration instruction. If stalling the program\n* is not important, the configuration instruction can be used by itself. If Xwire is not currently\n* running when an Xwire configuration instruction is executed, there is no stalling of the users program.\n*\n* V3-25 18\/6\/2010 Abitrary string communications protocol added. This protocol allows the user to create and send ASCII\n* and binary strings and receive and parse same. Simple 8 bit addition and subtraction, both with and without carry\n* instructions have been added. The carry\/borrow bit for these instruction is held in the R register. Non destructive \n* floating bit compare and go instructions have been added. Bug fixed which prevented the BranchM instruction from\n* being jindexed.\n*\n* V3-26 12\/8\/2010 Bug fixed in arbitary string protocol where the buffer pointers were not re-initialised if there\n* was a program error and the program re-started. RtoX instruction added. Bug fixed in the COMTX_Space instruction which \n* would return the number of bytes in the buffer rather that the number of free bytes. Bug fixed in Xwire slave sequencer, \n* other minor Xwire improvements to improve robustness in the slave mode when there are inadvertantly two Xwire masters \n* on the bus. Xwire TX and RX state machines now re-initialise themselves immediately that they are disabled. This\n* has been done to prevent unwanted behaviour when there are multiple slaves with the same address on the Xwire bus (PKS).\n* A bug has been fixed in the SPI module which may cause expansion I\/O to be ignored depending on the power up data contents\n* of the shift registers. RtoX instruction added.\n*\n* V3-27 19\/5\/2011 MODBUS\/SPLat\/String protocol UART RX interrupt routine and UART interrupt vectors modified to recover \n* correctly from UART overrun errors. Bug fixed in MODBUS which would cause the 3.5 character delay timer not to be \n* initialised if the selected baud rate was the same as the current baud rate. Xwire RX interrupt routine and UART\n* interrupt vectors also modified to recover from overrun errors. MODBUS code modified to always return idle status\n* when re-initialised.Added 10 new floating point compare instructions which set X either true of false depending on the \n* floating point comparison. They are non destructive to W and Q. Added \"COMRX_fGetNum\" instruction to string comms protocol \n* to allow the extraction of numbers from the ASCII string contained in the receive buffer. The routine will parse both signed \n* integer and signed decimal numbers and return with the result in W. The SPLat result register R will be zero if a number was \n* successfully parsed or 1 if a valid number could not be parsed. Added COMRX_StrFind and iiPrintNVText instructions. Bugs \n* fixed in iiPrintFill and COMRX_peek instructions. Changed buffer arrangements for the LCD driver and string comms protocol \n* so that the string comms protocol can send strings of up to 255 characters from a single string comms instruction. Previously, \n* a limit of 40 characters applied to the iiPrintText, iiPrintFill and iiPrintNVText instructions. Also, if the TX buffer was \n* full when any String protocol instruction which resulted in characters being appended to the TX buffer, an error would be \n* generated and the SPLat program reset. The user was expected to use the COMTX_Space instruction to ensure this did not \n* happen. Now, the TX buffer can be written at any time with the caveat that if the buffer becomes full during the execution \n* of the string comms instruction, the entire SPLat program will be stalled until the currently executing instruction can \n* deposit all of its characters into the TX buffer. The TX buffer is 128 characters in length. When the destination is the \n* user RAM, the instructions still execute atomically providing the string fits within the user RAM. If not, an error is \n* generated and the SPLat program is reset. Reports dialect 27.\n*\n* V3-28 4\/7\/2011 Added iifGetNum, iiFindXinBuf, iiGetHex and iiStrFind instructions to allow string processing from user\n* RAM. This allows string porcessing of data which may come from an Xwire peripheral, particularly the SX10509 internet \n* interface, where the server may provide data in ASCII format. iiPrintNVtext instruction now uses record length and\n* record number as well as the NVEM pointer to index the string to be sent. New TestXY instructions added. Reports dialect 28.\n*\n* V3-29\t\t\t14\/10\/2011 Bug fixed in COMRX_Peek instruction which would cause it to return a result when peeking at the first character\n* \t\t\t\t in the buffer when no characters where in the RX buffer. Also fixed in the same instruction, was a bug which caused it to\n*\t\t\t\t return the byte after the one referenced by X.\n*\n* V3-30\t\t\t8\/11\/2011 Bug fixed which would cause SPLatPC not to connect to an MS120 with 32 expansion I\/O's connected and when any of the \n* \t\t\t\t last 4 inputs were activated. This would cause the MS120 to stream input update messages.\n*\n* V3-31\t\t\t10\/9\/2013 Bug fixed in MODBUS slave function 2 which could cause eratic behaviour if more than 8 inputs state were polled for.\n*\n* V3-32\t\t\t29\/6\/2015 Increased the number of SPLat Multitrack tasks from 32 to 40.\n*\n* V3-33\t\t\t11\/9\/2017 Fixed a bug in the FixToMem16 instruction which destroyed W instead of preserving it.\n*\n* V3-34\t\t\t1\/11\/2017 Brought up to date with the latest LCD driver which fixes a display formatting bug when displaying some floating point\n* \t\t\t\t numbers. 100 x 0.01 followed by oblcd_fdispw 5,0 would result in the wrong number being displayed. The result should be 1.\n*<\/code><\/pre>\n\n\n\n2. Download SPLat reFlash<\/h6>\n\n\n\n