Simulation no longer needed, not implemented.

Simulations/MCP2515 - CANbus RESET Pin Configuration/LTSpice Schematic - MCP2515 RESET Pin.asc

@@ -1,36 +0,0 @@
-Version 4
-SHEET 1 1388 680
-WIRE 192 0 -48 0
-WIRE 192 64 192 0
-WIRE -48 176 -48 0
-WIRE 192 208 192 144
-WIRE 288 208 192 208
-WIRE 400 208 368 208
-WIRE 192 288 192 208
-WIRE -48 368 -48 256
-WIRE 192 368 192 352
-WIRE 192 368 -48 368
-WIRE 192 400 192 368
-FLAG 192 400 0
-FLAG 400 208 #RESET
-IOPIN 400 208 In
-SYMBOL res 176 48 R0
-SYMATTR InstName R1
-SYMATTR Value 100
-SYMBOL cap 176 288 R0
-SYMATTR InstName C1
-SYMATTR Value 10<31>
-SYMBOL res 384 192 R90
-WINDOW 0 0 56 VBottom 2
-WINDOW 3 32 56 VTop 2
-SYMATTR InstName R2
-SYMATTR Value 1k
-SYMBOL voltage -48 160 R0
-WINDOW 123 0 0 Left 0
-WINDOW 39 0 0 Left 0
-SYMATTR InstName V1
-SYMATTR Value 5
-TEXT -1112 224 Left 2 ;Constraints:\nVoltage source that MCP2515 accepts is 5 V.\nThe minimum operating voltage is 2.7 V.\nTo ensure this happens with a comfortable margin, we will design #RESET\nto remain below 2.7 V for at least 10 microseconds.
-TEXT -1112 -40 Left 2 ;Problem:\n(Taken from MCP2515 Datasheet [Page 57])\nIt is important to provide a RESET signal after power-up to ensure that the logic\nand registers are in their default state. A hardware Reset can be achieved\nautomatically by placing an RC on the #RESET pin (See Figure 9-1).\nThe values must be such that the device is held in Reset for a minimum of\n2 microseconds after V_DD reaches the operating voltage, as indicated\nin the electrical specification (t_RL).
-TEXT -1112 424 Left 2 !.tran 0 0.001 0 startup
-TEXT 424 0 Left 2 ;Result:\nThis way over-satisfies the requirements, but will stay with this since the parts are\nprobably cheapest, just lying around somewhere in these values.

Simulations/MCP2515 - CANbus RESET Pin Configuration/LTSpice Schematic - MCP2515 RESET Pin.log

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-Circuit: * C:\SunseekerTelemetry\Simulations\MCP2515 - CANbus RESET Pin Configuration\LTSpice Schematic - MCP2515 RESET Pin.asc
-
-.OP point found by inspection.
-
-Date: Tue Feb 02 00:12:38 2021
-Total elapsed time: 0.025 seconds.
-
-tnom = 27
-temp = 27
-method = modified trap
-totiter = 2090
-traniter = 2090
-tranpoints = 1046
-accept = 1046
-rejected = 0
-matrix size = 4
-fillins = 0
-solver = Normal
-Matrix Compiler1: 100 bytes object code size  0.1/0.0/[0.0]
-Matrix Compiler2: 248 bytes object code size  0.1/0.0/[0.0]
-