ATA5279 ATMEL Corporation, ATA5279 Datasheet - Page 13

• Manufacturer Part Number: ATA5279
• Manufacturer: ATMEL Corporation

Table 3-2.
9125A–RKE–04/08
Step
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
Get Driver Setup
Get Driver Setup
Get Driver Setup
Get Driver Setup
Get Driver Setup
Set Coil Current
Set Coil Current
Set Coil Current
- no command -
- no command -
- no command -
Sequence for Example 2, Using the Diagnosis Mode
Select Driver
Select Driver
Select Driver
Select Driver
Command
Again, this is only an example of how the diagnosis system can be used. Generally, a more sys-
tematic approach is suggested in order to efficiently test all connection lines used.
Note:
To exit the diagnosis mode correctly, two SPI commands have to be sent: the first is the Select
Driver command with the DM bit set to 0 and the second is a Reset Fault Status command. See
also SPI Command Description.
I/O
O
O
O
O
O
I
I
I
I
I
I
I
I
I
I
I
I
00101101 – 2Dh
00101101 – 2Dh
10100010 – A2h
10100001 – A1h
10100000 – A0h
00101001 – 29h
01101000 – 68h
00001001 – 09h
01101000 – 68h
00010101 – 15h
01101000 – 68h
00011101 – 15h
00101001 – 29h
01101000 – 68h
00001001 – 09h
01101000 – 68h
00010101 – 15h
Coding
Actions / Remarks
Selects driver 1 with Diagnosis Mode enabled
Reads back active driver info:
Channel 1 active, A1P returns a 1
Selects driver 4 with Diagnosis Mode enabled
Reads back active driver info:
Channel 4 active, A4N returns a 1
Closes test switches S_L4P and S_H4N
Note:
Wait for the test structures to stabilize in the new setting,
see first example
Reads back active driver info:
Channel 4 active, both lines return a 1
Selects driver 1 with Diagnosis Mode enabled
Closes test switches S_H1P and S_L1N
Note:
Wait for the test structures to stabilize in the new setting,
see first example
Reads back active driver info:
Channel 1 active and A1P returns a 1
Selects driver 4 with Diagnosis Mode enabled
Closes test switches S_L4P and S_L4N
Note:
Wait for the test structures to stabilize in the new setting,
see first example
Reads back active driver info:
Channel 4 active and A4N returns a 1
S_H4P and S_L4N are open then
S_L1P and S_H1N are open then
S_H4P and S_H4N are open then
ATA5279 [Preliminary]
13