HAL-APB-V1.5 Datasheet, PDF (39/59 Pages) Micronas – Application Board HAL-APB V1.x

APPLICATION NOTE
HAL1820, HAL24xy, HAL28xy, HAL36xy, HAL38xy
Application Board HAL-APB V1.x
10. HAL 2810 – Board Commands
The HAL 28xy family consists of members with different digital interfaces like LIN,
PWM and SENT. All members within this family can be programmed without any addi-
tional programming pin. Programming is done via LIN frames or Biphase-M telegrams
depending on the family member.
10.1. LIN Interface
Note: For the LIN2.0 Mode, the hardware configuration of the HAL-APB V1.x must be
changed. For details (see Section 3 on page 10).
The LIN Interface on the HAL-APB V1.x is intended to be used with one HAL 2810 sen-
sor as a point to point communication. The firmware comprises a master driver for LIN
protocol 2.0. A slave mode is not implemented.
10.1.1. LIN Interface Mode Configuration
Note: In case of LIN configuration the bus voltage level is equal to V_Board (normally
18 V).
For using this mode correct the V_{DD_HAL} has to be set to 12V too. This is done by send-
ing the two commands
=> ftvdp1(setting programming voltage = 12V)
=> vho1(switching on V_{DD_HAL})
10.1.2. Schedule Tables
Different schedule tables allow the use of unconditional frames and diagnostic/configu-
ration frames. It is possible to switch between 4 schedule tables, where tables 1 to 3
handle unconditional frames and table 4 handles configuration frames. The PIDs given
in the table are the default settings in the HAL-APB V1.x firmware schedule table set-
tings. The PIDs of the unconditional frames in the schedule tables 1 to 3 can be
changed in the test terminal.
This can be only done while the corresponding table is not scheduled! The number of
response bytes is set to a fixed value for each frame inside a schedule table. If a PID is
changed accordingly, this length is applied to the new PID. Changed PIDs are lost after
powering off the HAL-APB V1.x. Each schedule table includes only two LIN frames!
The scheduling time between frames is set to 20 ms (fixed).
Note: To apply more user friendly behavior, especially for the saving of special PID
settings, the calling application software should implement the preservation of
the PID settings.
Micronas
Oct. 8, 2012; APN000055_003EN
39