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MCB-STR9-v2.0 schematic correct?Next Thread | Thread List | Previous Thread Start a Thread | Settings | Details | Message |
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Read-Only Author David Perry Posted 10-Jul-2006 08:46 Toolset ARM |  MCB-STR9-v2.0 schematic correct? David Perry Port pin P3.6 is connected to both switch S3 and rx data for Com1. Also, no UART alternate functions are listed in the STR91xF datasheet for P3.6.
Is this correct? I have one of these boards on order and I'm planning to connect some additional prototype circuitry to it.
Thanks Dave | | Read-Only Author Scott Chandler Posted 10-Jul-2006 16:00 Toolset ARM |  RE: MCB-STR9-v2.0 schematic correct? Scott Chandler I have one of these boards sitting in front of me and I can tell you that yes P3.6 is connected to both S3 and to pin 12 of the 232 translator. | | Read-Only Author Hans Schneebauer Posted 11-Jul-2006 02:53 Toolset ARM |  RE: MCB-STR9-v2.0 schematic correct? Hans Schneebauer You are right, this was a mistake in version 2 of the MCBSTR9 PCB. Unfortunately, the COM1 interface cannot be used on this board because of this (see also http://www.keil.com/support/docs/3211.htm).
A few days ago we started to ship version 3 boards. The version 3 schematics will soon be published at http://www.keil.com/mcbstr9/
The differences between version 2 and version 3 are: - COM1 is now connected to P3.0 and P3.1 instead of P3.6 and P3.7. - P3.6 is now only connected to pushbutton S3. - P3.7 is now only connected to jumper J3 | |
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