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Freedom K64F: Add pin configuration to use a serial Shield as the Serial Console.

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This commit is contained in:
Gregory Nutt 2016-07-02 15:27:12 -06:00
parent d31f0bd076
commit 1bf745a841
2 changed files with 52 additions and 2 deletions
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33
configs/freedom-k64f/README.txt
View File

@ -54,8 +54,34 @@ OpenSDAv2
Serial Console Serial Console
============== ==============
USB VCOM Console
----------------
The primary serial port interface signals are PTB16 UART0_RX and PTB17 The primary serial port interface signals are PTB16 UART0_RX and PTB17
UART0_TX. These signals are connected to the OpenSDAv2 circuit. UART0_TX. These signals are connected to the OpenSDAv2 VCOM circuit.
Serial Shield Console
---------------------
An alternative serial port might use a standard serial shield mounted
on the Freedom Board. In this case, Arduino pin D1 provides UART TX and
pin D0 privides UART RX.
The I/O headers on the FRDM-K64F board are arranged to enable
compatibility with Arduino shield. The outer rows of pins (even numbered
pins) on the headers, share the same mechanical spacing and placement with
the I/O headers on the Arduino Revision 3 (R3) standard.
The Arduino D0 and D1 pins then correspond to pins 2 and 4 on the J1 I/O
connector:
Arduino Pin FRDM-K64F J1 Connector
------------------------ -----------------------
UART TX, Arduino D1 pin Pin 4, PTC17, UART3_TX
UART RX, Arduino D0 pin Pin 2, PTC16, UART3_RX
Default Serial Console
----------------------
By default, these configuration are setup to use the Serial Console on
UART3. That, however, is easily reconfigured.
LEDs and Buttons LEDs and Buttons
================ ================
@ -344,7 +370,10 @@ Where <subdir> is one of the following:
CONFIG_ARMV7M_OABI_TOOLCHAIN=y : The older OABI version CONFIG_ARMV7M_OABI_TOOLCHAIN=y : The older OABI version
CONFIG_RAW_BINARY=y : Output formats: ELF and raw binary CONFIG_RAW_BINARY=y : Output formats: ELF and raw binary
3. An SDHC driver is under work and can be enabled in the NSH configuration 3. The Serial Console is provided on UART3 with the correct pin
configuration for use with an Arduino Serial Shield.
4. An SDHC driver is under work and can be enabled in the NSH configuration
for further testing be setting the following configuration values as for further testing be setting the following configuration values as
follows: follows:

21
configs/freedom-k64f/include/board.h
View File

@ -205,6 +205,27 @@
#define PIN_UART0_RX PIN_UART0_RX_3 #define PIN_UART0_RX PIN_UART0_RX_3
#define PIN_UART0_TX PIN_UART0_TX_3 #define PIN_UART0_TX PIN_UART0_TX_3
/* An alternative serial port might use a standard serial shield mounted
* on the Freedom Board. In this case, Arduino pin D1 provides UART TX and
* pin D0 privides UART RX.
*
* The I/O headers on the FRDM-K64F board are arranged to enable
* compatibility with Arduino shield. The outer rows of pins (even numbered
* pins) on the headers, share the same mechanical spacing and placement with
* the I/O headers on the Arduino Revision 3 (R3) standard.
*
* The Arduino D0 and D1 pins then correspond to pins 2 and 4 on the J1 I/O
* connector:
*
* Arduino Pin FRDM-K64F J1 Connector
* ------------------------ -----------------------
* UART TX, Arduino D1 pin Pin 4, PTC17, UART3_TX
* UART RX, Arduino D0 pin Pin 2, PTC16, UART3_RX
*/
#define PIN_UART3_RX PIN_UART3_RX_2
#define PIN_UART3_TX PIN_UART3_TX_2
/************************************************************************************ /************************************************************************************
* Public Data * Public Data
************************************************************************************/ ************************************************************************************/