HAL855 datasheet(30/102 Pages) MICRONAS

30 / 102 page

HAL8xy, HAL100x

APPLICATION NOTE

Programmer Board

Sept. 19, 2013; APN000046_03EN

Micronas

4.5.

The Programming Procedure

The general programming procedure is described in detail for the HAL805 (HAL815/

HAL817).

The procedure for the HAL810 is quite similar. However, the multiprogramming (i.e. the

programming of more than one sensor connected to the same supply voltage) does not

apply for the HAL810. Additionally, some register names are different for the HAL810.

An example of a programming procedure is given in Fig. 4–6.

First, the programmer board has to be initialized. If more than one sensor is connected

to the same supply line, the sensors have to be addressed sequentially. This is done by

the multiprogramming loop: After deactivating all sensors, the sensor to be pro-

grammed is activated again by sending a pulse on the corresponding output line, fol-

lowed by a dummy read command.

Note: The flow chart shown in Fig. 4–6 is intended as a simple example. The multipro-

gramming loop can also be done within the calibration procedure.

Please keep in mind that the board commands “e...”, “q...”, “m...”, and “t” cause the

board to send back an eight character string to the PC. This string must be read out of

the serial port before sending the next command.

Table 4–7:

Cross reference register names

CLAMP LOW

MIN DUTY

CLAMP HIGH

MAX DUTY

SENSITIVITY

DC SENSITIVITY

VOQ

DCOQ

HAL855 Datasheet(PDF) 30 Page - Micronas