Freescale Semiconductor TWR-K80F150M, Быстрый старт

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8
Quick Start Guide
TWR-K80F150M Jumper Options (cont.)
J15
USB ID
connection
ON Connect PTD7 to USB ID pin on micro-USB connector J19
OFF
Disconnect PTD7 from USB ID pin on micro-USB
connector J19
J16
SWD DIO
OpenSDA
Connection
ON
Connect SWD_DIO from OPENSDA circuit to K80 MCU to
allow debugging using OPENSDA
OFF
Disconnect SWD_CLK from OPENSDA circuit to K80 MCU to
allow J-Link or U-Link debug
J17
SWD clock
OpenSDA
Connection
ON
Connect SWD_CLK from OPENSDA circuit to K80 MCU to
allow debugging using OPENSDA
OFF
Disconnect SWD_CLK from OPENSDA circuit to K80 MCU to
allow J-Link or U-Link debug
J18
USB over-
current flag
connection
ON Connect PTC18 to USB over-current flag for MIC2005
OFF Disconnect PTC18 to USB over-current flag for MIC2005
J20
USB Switch
Selection
1–2 Use the on-board micro-USB connector J19
2–3 USB signals come from elevator
J21
RESET button
connection
1–2
When powering the OPENSDA MCU, bootloader mode can
be selected
2–3
When OPENSDA MCU is not powered, RESET button can
be used
J22
VREGIN
Selection
1–2 VREGIN comes from on-board 5 V source
2–3 VREGIN comes from elevator VBUS from signal A57.
J23 5V Connection
ON Connect 5 V IN to the 3.3 V regulator
OFF Disconnect 5 V IN from the 3.3 V regulator
Jumper Option Setting Description