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More KL25Z SPI fixes

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This commit is contained in:
Gregory Nutt 2013-06-20 19:58:45 -06:00
parent b14f0cf9f7
commit 59e1d1c6cd
2 changed files with 40 additions and 27 deletions
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4
arch/arm/src/kl/kl_spi.c
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@ -707,13 +707,13 @@ FAR struct spi_dev_s *up_spiinitialize(int port)
/* Configure master mode, select mode 0, MSB first. Disable interrupts. */
spi_putreg(priv, KL_SPI_C1_OFFSET, SPI_C1_SPIE | SPI_C1_MSTR);
spi_putreg(priv, KL_SPI_C1_OFFSET, SPI_C1_SPE | SPI_C1_MSTR);
/* Disable interrupts, DMA, bidirectional mode, stop-in-wait mode, enable
* master mode fault detection
*/
spi_putreg(priv, KL_SPI_C1_OFFSET, 0);
spi_putreg(priv, KL_SPI_C2_OFFSET, 0);
/* Set the initial SPI configuration */

63
configs/freedom-kl25z/README.txt
View File

@ -1,8 +1,8 @@
README.txt
==========
This is the README file for the port of NuttX to the Freescale Freedom KL25Z
board. This board has the MKL25Z128 chip with a built-in SDA debugger.
This is the README file for the port of NuttX to the Freescale Freedom KL25Z
board. This board has the MKL25Z128 chip with a built-in SDA debugger.
Contents
========
@ -101,39 +101,52 @@ LEDs
Serial Console
==============
As with most NuttX configurations, the Freedom KL25Z configurations
depend on having a serial console to interact with the software. The
Freedom KL25Z, however, has no on-board RS-232 drivers so will be
necessary to connect the Freedom KL25Z UART pins to an external
RS-232 driver board or TTL-to-Serial USB adaptor.
As with most NuttX configurations, the Freedom KL25Z configurations
depend on having a serial console to interact with the software. The
Freedom KL25Z, however, has no on-board RS-232 drivers so will be
necessary to connect the Freedom KL25Z UART pins to an external
RS-232 driver board or TTL-to-Serial USB adaptor.
By default UART0 is used as the serial console on this boards. The UART0
is configured to work with the OpenSDA USB CDC/ACM port:
By default UART0 is used as the serial console on this boards. The UART0
is configured to work with the OpenSDA USB CDC/ACM port:
------ ------------------------------- -----------------------------
PIN PIN FUNCTIONS BOARD SIGNALS
------ ------------------------------- -----------------------------
Pin 27 PTA1/TSI0_CH2/UART0_RX/FTM2_CH0 UART1_RX_TGTMCU and D0 (PTA1)
Pin 28 PTA2/TSI0_CH3/UART0_TX/FTM2_CH1 UART1_TX_TGTMCU and D1 (PTA2)
------ ------------------------------- -----------------------------
PIN PIN FUNCTIONS BOARD SIGNALS
------ ------------------------------- -----------------------------
Pin 27 PTA1/TSI0_CH2/UART0_RX/FTM2_CH0 UART1_RX_TGTMCU and D0 (PTA1)
Pin 28 PTA2/TSI0_CH3/UART0_TX/FTM2_CH1 UART1_TX_TGTMCU and D1 (PTA2)
But the UART0 Tx/Rx signals are also available on J1:
But the UART0 Tx/Rx signals are also available on J1:
---------------- ---------
UART0 SIGNAL J1 pin
---------------- ---------
UART0_RX (PTA1) J1, pin 2
UART0_TX (PTA2) J1, pin 4
---------------- ---------
UART0 SIGNAL J1 pin
---------------- ---------
UART0_RX (PTA1) J1, pin 2
UART0_TX (PTA2) J1, pin 4
Ground is available on J2 pin 14. 3.3V is available on J3 and J4.
Ground is available on J2 pin 14. 3.3V is available on J3 and J4.
mbed
====
The Freedom KL25Z includes a built-in SDA debugger. An alternative
to the SDA bootloader is this boot loader from mbed:
The Freedom KL25Z includes a built-in SDA debugger. An alternative
to the SDA bootloader is this boot loader from mbed:
http://mbed.org/handbook/mbed-FRDM-KL25Z-Getting-Started
http://mbed.org/handbook/Firmware-FRDM-KL25Z
http://mbed.org/handbook/mbed-FRDM-KL25Z-Getting-Started
http://mbed.org/handbook/Firmware-FRDM-KL25Z
Using the mbed loader:
1. Connect the KL25Z to the host PC using the USB connector labeled
SDA.
2. A new file system will appear call MBED; open it with Windows
Explorer (assuming that you are using Windows).
3. Drag and drop nuttx.bin into the MBED window. This will load the
nuttx.bin binary into the the KL25Z. the MBED window will close
then re-open and the KL25Z will be running the new code.
Using the Freescale SDA debugger is essentially the same. That
debugger will also accept .hex file.
Freedom KL25Z-specific Configuration Options
============================================