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PIC32MZ: Add logic to configure peripheral pins for the selecte UARTs

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This commit is contained in:
Gregory Nutt 2015-02-26 15:05:11 -06:00
parent b583e40c06
commit c45d42a253
2 changed files with 57 additions and 1 deletions
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47
configs/pic32mz-starterkit/README.txt
View File

@ -33,6 +33,14 @@ Key features of the PIC32MZ Starter Kit include;
The PIC32MZ starter kit comes complete with a LAN8740 PHY daughter board.
Testing was performed with the following additional hardware:
- Microchip PIC32MZ Embedded Connectivity (EC) Adapter Board (AC320006)
that allows connection of the PIC32MZEC Starter Kit to the Microchip
Multimedia Expansion Board (MEB, DM320005) or PIC32 I/O Expansion Board
(DM320002). These were previously used with the PIC32MX bringup.
- Microchip Multimedia Expansion Board II (MEB II, DM320005-2).
Contents
========
@ -102,7 +110,44 @@ Creating Compatible NuttX HEX files
Serial Console
==============
To be provided
The Microchip PIC32MZ Embedded Connectivity (EC) Adapter Board (AC320006)
brings out UART signals as follows:
JP7 redirects J1 U3_TX to either J2 SOSCO/RC14 or U1_TX:
Adapter
-----------------------------------------------------------------------
JP7, Pin 1: J2 Pin 32, SOSCO/RC14
Pin 2: J1 Pin 17, U3_TX
Pin 3: J2 Pin 90, U1_TX
PIC32MZ Starter Kit
-----------------------------------------------------------------------
J1 Pin 17, SOSCO/RC14 PIC32MZ SOSCO/RPC14/T1CK/RC14
RPC14 supports U1RX, U4RX, and U3TX
JP8 redirects J1 RB3/AN3/SDO4/WIFI_SDI to either J2 AN3/SDO4/WIFI_SDI or U3_RX:
Adapter PIC32MZ Starter Kit
---------------------------------------------- -------------------------
JP8, Pin 1: J2, Pin 66, AN3/SDO4/WIFI_SDI
Pin 2: J1, Pin 105, RB3/AN3/SDO4/WIFI_SDI
Pin 3: J2, Pin 88, U3_RX
PIC32MZ Starter Kit
-----------------------------------------------------------------------
J1, Pin 105, AN3/C2INA/RPB3/RB3
RPB3 supports U3RX, U1TX, and U5TX
Thus UART1 or UART3 could be used as a serial console if only the
PIC32MZEC Adapter Board is connected.
The default serial configuration here in these configurations is UART1
using RPC14 and RPB3. That UART selection can be change by running 'make
menuconfig'. The UART pin selections would need to be changed by editing
configs/pc32mz-starterkit/include/board.h.
LEDs and Buttons
================

11
configs/pic32mz-starterkit/include/board.h
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@ -214,6 +214,17 @@
* are grounded when pressed.
*/
/* UARTS ********************************************************************/
/* If the PIC32MZEC Adaptor Board is connected, then UART1 signals are
* available at these locations on the adaptor board:
*
* JP7 Pin 2: RPC14
* JP8 Pin 2: RPB3
*/
#define BOARD_U1RX_PPS U1RXR_RPC14
#define BOARD_U1TX_PPS U1TX_RPB3R
/****************************************************************************
* Public Types
****************************************************************************/