sergiotarxz/nuttx
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

configs/lpcxpresso-lpc54628: Add pin definitions for USART, I2C, and SPI on the Arduino Uno connector.

Browse Source
This commit is contained in:
Gregory Nutt 2018-01-16 11:48:36 -06:00
parent 802f146781
commit c67de1f114
2 changed files with 56 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
configs/lpcxpresso-lpc54628/README.txt
View File

@ -24,6 +24,12 @@ README
device functionality
- 10/100Mbps Ethernet (RJ45 connector)
CONTENTS
========
- STATUS
- Configurations
STATUS
======

54
configs/lpcxpresso-lpc54628/include/board.h
View File

@ -306,7 +306,7 @@
/* Pin Disambiguation *******************************************************/
/* Flexcomm0/USART0
*
* USART0 connects to the serial bridge on LPC4322JET100 and is typlical used
* USART0 connects to the serial bridge on LPC4322JET100 and is typically used
* for the serial console.
*
* BRIDGE_UART_RXD -> P0_29-ISP_FC0_RXD -> P0.29 GPIO_FC0_RXD_SDA_MOSI_2
@ -316,6 +316,18 @@
#define GPIO_USART0_RXD (GPIO_FC0_RXD_SDA_MOSI_2 | GPIO_FILTER_OFF)
#define GPIO_USART0_TXD (GPIO_FC0_TXD_SCL_MISO_2 | GPIO_FILTER_OFF)
/* An alternative for the serial console is a Arduino Uno compatible serial
* shield:
*
* Arduino Uno J13 Board Signal
* ----------- ------ ----------------
* D0 RX Pin 15 P3_26-FC4_RXD
* D1 TX Pin 13 P3_27-FC4_TXD
*/
#define GPIO_USART4_RXD (GPIO_FC4_RXD_SDA_MOSI_2 | GPIO_FILTER_OFF)
#define GPIO_USART4_TXD (GPIO_FC4_TXD_SCL_MISO_2 | GPIO_FILTER_OFF)
/* Flexcomm2/I2C
*
* For I2C:
@ -329,8 +341,14 @@
* Type I pins need for high speed I2C need:
* GPIO_FILTER_OFF + GPIO_I2C_FILTER_OFF + GPIO_I2CDRIVE_HIGH
*
* The touchscreen controller is on I2C2: SCL P3.24, SDA P3.23. These are
* both Type D/I pins.
* There are several on-board devices using I2C2:
*
* Codec I2C address: 0x1a
* Accel I2C address: 0x1d
* Touch panel I2C address: 0x38
*
* In addition, these same I2C2 pins are brought out through D14 and D15 of
* the Arduino Uno connector.
*/
#if defined(CONFIG_LPC54_I2C_FAST)
@ -351,6 +369,35 @@
GPIO_FILTER_OFF | _I2CFILTER | \
_I2CDRIVE)
/* Flexcomm2/SPI
*
* There are no SPI devices on board the LPCXpresso-LPC54628. SPI is
* available on the Arduino Uno compatible connector, however:
*
* Arduino Uno J9 Board Signal Pin Type
* ----------- ------ ---------------- ---------
* D10 SSEL Pin 15 P3_20-FC9_SCK Type D
* D11 MOSI Pin 13 P3_21-FC9_MOSI Type A
* D12 MISO Pin 11 P3_22-FC9_MISO Type A
* D13 SCK Pin 9 P3_30-FC9_SSELn0 Type D
*
* For SPI:
* Type A & D pins need:
* GPIO_PUSHPULL (on outputs) + GPIO_SLEW_STANDARD (Type D) +
* GPIO_FILTER_OFF
* GPIO_SLEW_FAST is optional for high data rates (Type D).
* Type I need:
* GPIO_I2C_FILTER_OFF + GPIO_I2CDRIVE_LOW + GPIO_FILTER_OFF +
* GPIO_I2CSLEW_GPIO
*/
#define GPIO_FC9_RXD_SDA_MOSI (GPIO_FC9_RXD_SDA_MOSI_1 | \
GPIO_PUSHPULL | GPIO_FILTER_OFF)
#define GPIO_FC9_TXD_SCL_MISO (GPIO_FC9_TXD_SCL_MISO_1 | \
GPIO_FILTER_OFF)
#define GPIO_FC9_SCK (GPIO_FC9_SCK_1 | GPIO_PUSHPULL | \
GPIO_SLEW_STANDARD | GPIO_FILTER_OFF)
/* SD/MMC
*
* P2_10-SD_CDn
@ -412,7 +459,6 @@
* feature.
*/
#define GPIO_ENET_MDIO GPIO_ENET_MDIO_2 /* P4.16 */
#define GPIO_ENET_MDC GPIO_ENET_MDC_2 /* P4.15 */