612699
70
Zoom out
Zoom in
Previous page
1/94
Next page
ELM327
ELM327DSJ Elm Electronics – Circuits for the Hobbyist
www.elmelectronics.com
Programmable Parameter Summary (continued)
PRS232 baud rate divisor when pin 6 is high (logic 1)
baud rate (in kbps) = 4000 ÷ (PP 0C value)
For example, 500 kbps requires a setting of 08 (since 4000/8 = 500)
Here are some example baud rates, and the divisor to be used:
68
(38.4)
00 to FF
0C
Notes:
1. The PP 0C value must be provided as hex digits only. The
decimal values (listed above in brackets) are only shown for
your convenience.
2. The ELM327 can only process continuous byte receives at
rates of about 600 kbps maximum. If you need to connect at
a higher rate, add a delay between the bytes to maintain an
average rate of 600 kbps or less.
3. A value of 00 provides a baud rate of 9600 bps.
0D Carriage Return Character R0D00 to FF
Baud Rate
(kbps)
19.2
38.4
57.6
115.2
230.4
PP 0C value
D0 (208)
68 (104)
45 (69)
23 (35)
11 (17)
500
08 (8)
hex (dec)
70 of 94
PP Description Values Default Type
0E 9A
(10011010)
00 to FFPower Control options
Each bit controls an option, as follows:
b7: Master enable 0: off 1: on
if 0, pins 15 and 16 perform as described for v1.0 to v1.3a
(must be 1 to allow any Low Power functions)
b6: Pin 16 full power level 0: low 1: high
normal output level, is inverted when in low power mode
b5: Auto LP control 0: disabled 1: enabled
allows low power mode if the RS232 activity stops
b4: Auto LP timeout 0: 5 mins 1: 20 mins
no RS232 activity timeout setting
b3: Auto LP warning 0: disabled 1: enabled
if enabled, says ‘ACT ALERT’ 1 minute before RS232 timeout
b2: Ignition control 0: disabled 1: enabled
allows low power mode if the IgnMon input goes low
R
70


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Elm 327 at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Elm 327 in the language / languages: English as an attachment in your email.

The manual is 0,23 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info