DP256 BDM | 68HC12 | EmbeddedRelated.com

Hi Folks, I have an application using a DP256 where the program may need to be changed in the field. Does the Chip automatically detect when the BDM Port is connected to? Is this the correct way to initiate Program updated to a finished product using this chip? Regards Toby Merridan [Non-text portions of this message have been removed]

(You need to be a member of 68hc12 -- send a blank email to 68hc12-subscribe@yahoogroups.com )

Toby, The application firmware can be updated in the field through the BDM port using a tool such as Motorola's Serial BDM Programmer (P/N: SCBDMPGMR12, $500). Info on the programmer can be found at: http://e-www.motorola.com/webapp/sps/site/prod_summary.jsp?code=SCBDMPGMR12&parentCode=MC9S12DP256&releaseLevel=null&nodeId=02M0ylfWcbfM0zGQbJwn An alternative can be to use a bootloader that receives the new firmware through one of the chip's communications channels. See Application Note AN2153 for an example of a bootloader that uses the DP256's SCI to receive S-Records and reprogram the on-chip Flash. Regards, Gordon -- =============================================================== Gordon Doughman Ph: 937-438-6811 Motorola Semiconductor Fax: 937-434-7457 Field Applications Engineer Pager: 800-759-8352 Pin: 1304089 Suite 175 3131 Newmark Drive Miamisburg, OH 45342 Check out my HC12 book at: http://www.rtcgroup.com/books/ Toby Merridan wrote: > Hi Folks, > > I have an application using a DP256 where the program may need to be changed > in the field. Does the Chip automatically detect when the BDM Port is > connected to? > > Is this the correct way to initiate Program updated to a finished product > using this chip? > > Regards > > Toby Merridan > > [Non-text portions of this message have been removed] > -------------------------------------------------------- > To unsubscribe from this group, send an email to: > To learn more about Motorola Microcontrollers, please visit > http://www.motorola.com/mcu

(You need to be a member of 68hc12 -- send a blank email to 68hc12-subscribe@yahoogroups.com )

Sign in

Search 68hc12

Subscribe to 68hc12

68hc12 by Keywords

Ads

Discussion Groups

See Also

Discussion Groups | 68HC12 | DP256 BDM

DP256 BDM - Toby Merridan - Oct 1 2:53:00 2002

Re: DP256 BDM - Gordon Doughman - Oct 1 8:59:00 2002