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SAME70-Xplained: Updates using Arduino serial (UART3).

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This commit is contained in:
Gregory Nutt
2015-12-05 16:13:29 -06:00
parent 5480d18026
commit 5adb77cb51
3 changed files with 35 additions and 17 deletions
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configs/same70-xplained/README.txt
+33 -15
View File
@@ -119,7 +119,7 @@ Any of these options can be selected as the serial console by:
NOTE: If USART1 is used (TXD1, RXD1), then PB4 must be reconfigured in the
SUPC. Normally, PB4 is TDI. When it is reconfigured for use with USART1,
the capability to debug is lost! If you plan to debug you should most
certainly not use USARTs.
certainly not use USART1.
SD Card
=======
@@ -137,7 +137,7 @@ E70. SD card connector:
PA30 MCDA0 (DAT0)
PA31 MCDA1 (DAT1)
PA26 MCDA2 (DAT2)
PA27 MCDA3 (DAT3) Camera
PA27 MCDA3 (DAT3)
PA25 MCCK (CLK) Shield
PA28 MCCDA (CMD)
PC16 Card Detect (C/D) Shield
@@ -1029,7 +1029,35 @@ NOTES:
reconfiguration process.
2. Unless stated otherwise, all configurations generate console
output on UART3 (i.e., for the Arduino serial shield).
output on USART1 (the EDBG VCOM)
NOTE: When USART1 is used, the pin PB4 is reconfigured. Normally, PB4
is TDI. When it is reconfigured for use with USART1, the capability to
debug is lost! If you plan to debug you should most certainly not use
USART1. UART3 might be a good option (the Arduino RXD/TXD):
-CONFIG_SAMV7_USART1=y
-CONFIG_USART1_ISUART=y
-CONFIG_USART1_SERIAL_CONSOLE=y
-CONFIG_USART1_RXBUFSIZE=256
-CONFIG_USART1_TXBUFSIZE=256
-CONFIG_USART1_BAUD=115200
-CONFIG_USART1_BITS=8
-CONFIG_USART1_PARITY=0
-CONFIG_USART1_2STOP=0
+CONFIG_SAMV7_UART3=y
+CONFIG_UART3_SERIAL_CONSOLE=y
+CONFIG_UART3_RXBUFSIZE=256
+CONFIG_UART3_TXBUFSIZE=256
+CONFIG_UART3_BAUD=115200
+CONFIG_UART3_BITS=8
+CONFIG_UART3_PARITY=0
+CONFIG_UART3_2STOP=0
UART3 is not the default because (1) the placement of the RJ-45 connector
makes it difficult to install Arduino shield cards and (2) the Arduino
connectors are not populated on the board as it comes from the factory.
3. All of these configurations are set up to build under Windows using the
"GNU Tools for ARM Embedded Processors" that is maintained by ARM
@@ -1081,12 +1109,7 @@ Configuration sub-directories
1. The serial console is configured by default for use with the EDBG VCOM
(USART1). You will need to reconfigure if you will to use a different
U[S]ART.
NOTE: When USART1 is used, the pin PB4 is reconfigured. Normally, PB4
is TDI. When it is reconfigured for use with USART1, the capability to
debug is lost! If you plan to debug you should most certainly not use
USART1. USART3 might be a good option (the Arduino RXD/TXD)
U[S]ART. See "Information Common to All Configurations" above.
2. Default stack sizes are large and should really be tuned to reduce
the RAM footprint:
@@ -1191,12 +1214,7 @@ Configuration sub-directories
1. The serial console is configured by default for use with the EDBG VCOM
(USART1). You will need to reconfigure if you will to use a different
U[S]ART.
NOTE: When USART1 is used, the pin PB4 is reconfigured. Normally, PB4
is TDI. When it is reconfigured for use with USART1, the capability to
debug is lost! If you plan to debug you should most certainly not use
USART1. USART3 might be a good option (the Arduino RXD/TXD)
U[S]ART. See "Information Common to All Configurations" above.
2. Default stack sizes are large and should really be tuned to reduce
the RAM footprint:
configs/same70-xplained/include/board.h
+1 -1
View File
@@ -142,7 +142,7 @@
#define BOARD_PLLA_FREQUENCY (300000000) /* PLLACK: 25 * 12Mhz / 1 */
#define BOARD_CPU_FREQUENCY (300000000) /* CPU: PLLACK / 1 */
#define BOARD_MCK_FREQUENCY (150000000) /* MCK: PLLACK / 1 / 2 */
#define BOARD_UPLL_FREQUENCY /* To be provided */
#undef BOARD_UPLL_FREQUENCY /* To be provided */
/* HSMCI clocking
*
configs/samv71-xult/README.txt
+1 -1
View File
@@ -238,7 +238,7 @@ Any of these options can be selected as the serial console by:
NOTE: If USART1 is used (TXD1, RXD1), then PB4 must be reconfigured in the
SUPC. Normally, PB4 is TDI. When it is reconfigured for use with USART1,
the capability to debug is lost! If you plan to debug you should most
certainly not use USARTs.
certainly not use USART1.
SD Card
=======