TJA1100 can`t work

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TJA1100 can`t work

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1693275120
Contributor II

HI

       I use TJA1100 on my board,but i have some problems

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      The TJA1100 can`t work on my board ,so i did some tests,the result is:

register

internal

extend

remote

normal

0

24832

24832

24832

8448

1

485

481

481

481

15

128

128

128

128

17

40391

40399

40415

40391

18

22545

22545

22545

22545

19

8773

8773

8773

8773

20

0

0

0

0

21

544/512?

32928/160?

160

160/128?

22

32768

32768

32768

32768

23

48132(send_n)

16388(send_i)

24580(send_z)

24580(send_z)

24

16896

16896/512?

16896

16896/512?

25

0

0

0

0

26

0

0

0

0

    The same register may have different value  in the same mode,for example,the register 21. it make me confused.

Reg21

power-on detected

training phase failure detected

 

SMI control error detected

 

544

0

0

1

512

0

0

0

32928

1

1

1

160

0

1

1

128

0

1

0

Reg24

PLL stable and locked

hardware reset detected since register last read

16896

1

1

512

0

1

      

      The excel shows that the internal mode work well, but the extern mode,the remote mode and the normal mode link failure.

      How to make it work fine in normal mode?

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1 Solution
865 Views
Bulat
NXP Employee
NXP Employee

Decimal values in your tables are not well readable. Can you convert them to hex ones to get better bit-map structure?

At the moment I looked at register #17 in normal mode, value 40391 (that is 0x9DC7) shows following

SLAVE_JITTER_TEST = Enable;

TEST_MODE = reserved;

WAKE_REQUEST = 1 (transmit idle symbols as bus wake-up request).

Same value is in "internal mode". Are those values expected?

Regards,

Bulat

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2 Replies
866 Views
Bulat
NXP Employee
NXP Employee

Decimal values in your tables are not well readable. Can you convert them to hex ones to get better bit-map structure?

At the moment I looked at register #17 in normal mode, value 40391 (that is 0x9DC7) shows following

SLAVE_JITTER_TEST = Enable;

TEST_MODE = reserved;

WAKE_REQUEST = 1 (transmit idle symbols as bus wake-up request).

Same value is in "internal mode". Are those values expected?

Regards,

Bulat

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865 Views
1693275120
Contributor II

Hi

   The problem had been solved,the tja1100 was broken on hardware.

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