A1C XDF Additions
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1995 F150 5.8L MOB1
Re: A1C XDF Additions
Awesome, thanks! This looks great. Curious if you know if there's any KAM addresses that I could store a calculated stoich afr value in. If that's simple enough, it'd be cool to have flex fuel control vs manually updating it
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Re: A1C XDF Additions
dont know of any off the top of my head
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2.0 YBP
CARD / QUIK / COSY / ANTI
GHAJ0
SMD-190 / SMD-490 EEC-IV
Binary Editor
ForDiag
Re: A1C XDF Additions
IIRC the EEC hardware manual gives address ranges that are KAM, that's not to say there's a spare in the range.
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SD48b, Quarter Horse, Burn2
Re: A1C XDF Additions
There is a KAM checksum algorithm that happens, be aware KAM may be reset to defaults if it detects an error.
Adding to KAM may not be that simple.
Adding to KAM may not be that simple.
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SD48b, Quarter Horse, Burn2
Re: A1C XDF Additions
I think kam is located at 0x7B7 up to 0x821 for a total of 106 entries. That is in the code, not the reference manual.
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Binary Editor
ForDiag
Re: A1C XDF Additions
106 bytes used of 128 leaves some possible spare for 128kb kam hardware.Hardware Manual wrote: ^ Electronics Division PECE DepartmentINTRODUCTION TABLE 1-4. REFERENCE PUBLICATIONS
*Functional and Electrical Specification for a 128-Byte Custom Keep-Alive Read/Write Memory (KAM) ES-N7700010FBCADA
* Functional and Electrical Engineering Specification for a 2K-Byte Keep-Alive RAM with parallel I/O (RAM1/0) ES-N7500030FSCAGA
*Functional and Electrical Engineering Specification for a 2K-Byte Keep-Alive RAM with Serial and Parallel I/O (RAM/CART) ES-N7500120FSCAGA
...
MEMORY (on-board 81C61, 81C62, 81C65, & 81C66)
The 81061, 81062, 81065, and 81066 all have the same memory size and type, and memory addressing circuits. Memory on-board these devices consists of 2,048 bytes of read/write static RAM. This RAM was specifically designed to provide keep-alive storage for user data in battery powered systems. The RAM can store data while consuming less than 100 microamps of current under a wide input voltage operating range (+2.0 VDO to +5.5 VDO) when non-active. The 81065 and the 81066 provide a special keep-alive power input for their RAM.
Later chips apparently keep RAM alive as well according to the above snips.
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1995 F150 5.8L MOB1
Re: A1C XDF Additions
Great information. Thank you guys. Play around with reading/writing some values. Looks like like my qh is loosing kams each power off so I'll have to figure that out first.
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1995 F150 5.8L MOB1
Re: A1C XDF Additions
need some help confirming these are TV ramp timers for upshifts. I am specifically trying to locate:
TMTVRMP_12 = TV ramp time for 1-2 shift.
TMTVRMP_23 = TV ramp time for 2-3 shift.
TMTVRMP_34 = TV ramp time for 3-4 shift.
Code: Select all
84fa: 26,f4,01 timer 26, 1f4,
84fd: 26,f6,01 timer 26, 1f6,
8500: 22,f8,01 timer 22, 1f8,