TULIP4041 Startup Question

[Craig Bladow]

I'm seeing the same issue with my TULIP4041 completed this weekend.
I've updated the firmware to "VERSION 00.01.03 BETA - build time: 2024/09/17_19:56:54".

I verified continuity from the 41c module F1 connector pin to pin 3 of U5 and from pin 2 of U5 to pin 4 of the Pico 2. Power and ground connections to U5 check out.

Oscilloscope shows F1 going low for about 10 uS, I only see this once in 500ms.

A little section of trace output which may or may not be helpful.

Code:


      244  77CC  1  0E4  0.4800100000.4.2C  ...  R000  C0  FI0123456789ABCD  SELP 3                                                                                                                                
      245  77CD  0  001  0.4800100000.4.2C  0E4  R000  C0  FI0123456789ABCD  001  reg 3=00                                                                                                                         
      246  77CE  1  024  0.4800100000.4.2C  001  R000  C0  FI0123456789ABCD  SELP 0                                                                                                                                
      247  77CF  0  005  0.4800100000.4.2C  024  R000  C0  FI0123456789ABCD  005  reg 0=01                                                                                                                         
      248  77D0  1  024  0.4800100000.4.2C  005  R000  C0  FI0123456789ABCD  SELP 0                           Reg 01* 01* 00  00  01  01  01  00  00                                                               
      249  77D1  0  3C1  0.4800100000.4.2C  024  R000  C0  FI0123456789ABCD  3C1  reg 0=F0                                                                                                                         
      250  77D2  1  064  0.4800100000.4.2C  3C1  R000  C0  FI0123456789ABCD  SELP 1                           Reg F0* 01  00  00  01  01  01  00  00                                                               
      251  77D3  0  305  0.4800100000.4.2C  064  R000  C0  FI0123456789ABCD  305  reg 1=C1                                                                                                                         
      252  77D4  1  130  0.4800100000.4.2C  305  R000  C0  FI0123456789ABCD  LDI                              Reg F0  01  00  00  01  01  01  00  C1*                                                              
      253  77D5  0  01D  0.4800100000.4.2C  ...  R000  C0  FI0123456789ABCD  01D                                                                                                                                   
      254  77D6  1  106  0.4800100000.4.2C  ...  R000  C0  FI0123456789ABCD  A=C S&X                                                                                                                               
      255  77D7  1  130  0.4800100000.0.1D  ...  R000  C0  FI0123456789ABCD  LDI                                                                                                                                   
      256  77D8  0  023  0.4800100000.0.1D  ...  R000  C0  FI0123456789ABCD  023                                                                                                                                   
      257  77D9  1  280  0.4800100000.0.1D  ...  R000  C0  FI0123456789ABCD  HPIL=C 2                                                                                                                              
      258  77DA  1  12C  0.4800100000.0.23  280  R000  C0  FI0123456789ABCD  ?FI 8 ?FRAV         IL> 623 IDY  Reg F0  00* 00  00  01  01  01  00  C1                                                               
      259  77DB  1  037  0.4800100000.0.23  ...  R000  C0  FI0123456789ABCD  JC 6