forked from Archive/PX4-Autopilot
PIC32 Serial Console fixes
git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4221 7fd9a85b-ad96-42d3-883c-3090e2eb8679
This commit is contained in:
patacongo
parent
f1ee90fa13
commit
bb1782336c
|
|
@ -391,7 +391,7 @@ static void up_shutdown(struct uart_dev_s *dev)
|
|||
* the setup() method is called, however, the serial console may operate in
|
||||
* a non-interrupt driven mode during the boot phase.
|
||||
*
|
||||
* RX and TX interrupts are not enabled when by the attach method (unless the
|
||||
* RX and TX interrupts are not enabled by the attach method (unless the
|
||||
* hardware supports multiple levels of interrupt enabling). The RX and TX
|
||||
* interrupts are not enabled until the txint() and rxint() methods are called.
|
||||
*
|
||||
|
|
@ -491,7 +491,7 @@ static int up_interrupt(int irq, void *context)
|
|||
|
||||
up_clrpend_irq(priv->irqe);
|
||||
lldbg("ERROR: interrrupt STA: %08x\n",
|
||||
up_serialin(priv, PIC32MX_UART1_STA_OFFSET)
|
||||
up_serialin(priv, PIC32MX_UART_STA_OFFSET)
|
||||
handled = true;
|
||||
}
|
||||
#endif
|
||||
|
|
@ -619,7 +619,7 @@ static void up_rxint(struct uart_dev_s *dev, bool enable)
|
|||
#ifdef CONFIG_DEBUG
|
||||
up_enable_irq(priv->irqe);
|
||||
#endif
|
||||
up_enable_irq(priv->irqtx);
|
||||
up_enable_irq(priv->irqrx);
|
||||
ENABLE_RX(im);
|
||||
#endif
|
||||
}
|
||||
|
|
@ -628,7 +628,7 @@ static void up_rxint(struct uart_dev_s *dev, bool enable)
|
|||
#ifdef CONFIG_DEBUG
|
||||
up_disable_irq(priv->irqe);
|
||||
#endif
|
||||
up_disable_irq(priv->irqtx);
|
||||
up_disable_irq(priv->irqrx);
|
||||
DISABLE_RX(im);
|
||||
}
|
||||
priv->im = im;
|
||||
|
|
|
|||
|
|
@ -49,8 +49,10 @@ Contents
|
|||
|
||||
PIC32MX795F512L Pin Out
|
||||
MEB Connector
|
||||
PICtail
|
||||
Toolchains
|
||||
Loading NuttX with PICkit2
|
||||
Serial Console
|
||||
PIC32MX Configuration Options
|
||||
Configurations
|
||||
|
||||
|
|
@ -227,6 +229,11 @@ PIN CONFIGURATIONS SIGNAL NAME ON-BOARD CONNE
|
|||
MEB Connector
|
||||
=============
|
||||
|
||||
The following table summarizes how the pins brought the the MEB through the
|
||||
J2 on the Ethernet Starter Kit are mapped. This connect is J2 on the Ethernet
|
||||
Starter Kit and J3 on the MEB.
|
||||
|
||||
J3
|
||||
PIC32 SIGNAL PIN CONNECTION
|
||||
-------------------------- ------- ----------------------------------
|
||||
PMPD0 pin 23 Graphics Controller (SSD1926)
|
||||
|
|
@ -320,6 +327,46 @@ U2TX pin 112 (see CPLD)
|
|||
~U2RTS pin 106 (see CPLD)
|
||||
~U2CTS pin 108 (see CPLD)
|
||||
|
||||
PICtail
|
||||
=======
|
||||
|
||||
The MEB brings many of the signals out via the PICtail (J5). J5 is
|
||||
a 28 pin connector bringing out signals as summarized here (J3 is the
|
||||
designation of the connection to the Ethernet starter kit on the
|
||||
MEB side):
|
||||
|
||||
--- --- ------------------------
|
||||
J3 J5 Table 2-1
|
||||
PIN PIN Description
|
||||
--- --- ------------------------
|
||||
1 3.3V
|
||||
2 I/O_4 (Test Point)
|
||||
76 3 SCL2
|
||||
84 4 SCL1
|
||||
74 5 SDA2
|
||||
86 6 SDA1
|
||||
47 7 SDI2/SDI2A/CN9/RG7
|
||||
97 8 SS1, WFI_SDO
|
||||
49 9 SDO2/SDO2A
|
||||
10 WFI_SDI
|
||||
45 11 SCK2/SCK2A
|
||||
12 WFI_SCK
|
||||
51 13 SS2/SS2A/RG9
|
||||
14 SS1/RB2
|
||||
88 15 U1RX/SDI1A
|
||||
110 16 U2RX/SDI3A
|
||||
90 17 U1TX/RA10
|
||||
112 18 U2TX/SDO3A
|
||||
92 19 U1RTS/C2OUT/AN9
|
||||
106 20 U2RTS/SCK3A
|
||||
94 21 U1CTS/SDO1A
|
||||
108 22 U2CTS/SS3A/RF12
|
||||
73 23 RB9/INT1/RE8
|
||||
115 25 RA10/SCK1A
|
||||
26 3.3V
|
||||
85 27 INT1/SS1/RD14
|
||||
28 GND
|
||||
|
||||
Toolchains
|
||||
==========
|
||||
|
||||
|
|
@ -424,6 +471,97 @@ Loading NuttX with PICkit2
|
|||
# to the top-level build directory. It is the only
|
||||
# required input to mkpichex.
|
||||
|
||||
Serial Console
|
||||
==============
|
||||
|
||||
A serial console is not required to use NuttX. However, all of the
|
||||
Nuttx example code in the apps/examples assumes that you have a
|
||||
serial console. The Ethernet Starter Kit(even with the MEB) does not
|
||||
have any RS-232 connector needed to drive the serial console.
|
||||
|
||||
Raw UART signals are available at the MEB's PICtail connector, however,
|
||||
and can be connected to an external MAX2232 board to get a serial console.
|
||||
The defconfig files are set up to use UART2. So the proper connections
|
||||
would be:
|
||||
|
||||
PICtail
|
||||
PIN FUNCTION
|
||||
-------- -----------
|
||||
1 3.3V
|
||||
16 U2RX
|
||||
18 U2TX
|
||||
28 GND
|
||||
|
||||
UART1 is also brought out on the PICtail and would be connected as:
|
||||
|
||||
PICtail
|
||||
PIN FUNCTION
|
||||
-------- -----------
|
||||
1 3.3V
|
||||
15 U1RX
|
||||
17 U1TX
|
||||
28 GND
|
||||
|
||||
Here is a summary of the tortuous routes taken by the PIC32MX UART pins:
|
||||
|
||||
--- ---------------------------------- -------------------------- -------------------------
|
||||
PIN CONFIGURATIONS SIGNAL NAME ON-BOARD CONNECTIONS
|
||||
(Family Data Sheet Table 1-1) (Starter Kit User Guide)
|
||||
--- ---------------------------------- -------------------------- -------------------------
|
||||
|
||||
39 AC1TX/RF13/SCK4/U2RTS/U5TX SCM3D/BCLK2/RF13 J2 pin 106 (UART2)
|
||||
40 AC1RX/RF12/SS4/U2CTS/U5RX SCM3C/RF12 J2 pin 108 (UART2)
|
||||
49 PMA9/CN17/RF4/SDA5/SDI4/U2RX PMPA9/SCM3A/CN17/RF4 J2 pin 109 (PMP address)
|
||||
J2 pin 110 (UART2)
|
||||
50 PMA8/CN18/RF5/SCL5/SDO4/U2TX PMPA8/SCM3B/CN18/RF5 J2 pin 111 (PMP address)
|
||||
J2 pin 112 (UART2)
|
||||
52 RF2/SDA3/SDI3/U1RX SCM1A/RF2 J2 pin 88 (UART1)
|
||||
53 RF8/SCL3/SDO3/U1TX SCM1B/RF8 J2 pin 90 (UART1)
|
||||
|
||||
J2 is the connector at the bottom of the Ethernet start kit that
|
||||
mates the Ethernet Starter kit to the MEB. The MEB then makes the
|
||||
following signals available on the PICtail (J5):
|
||||
|
||||
MEB Connector:
|
||||
|
||||
-------------------------- ------- ----------------------------------
|
||||
Signal J3
|
||||
-------------------------- -------
|
||||
U1RX pin 88
|
||||
U1TX pin 90
|
||||
~U1RTS pin 92
|
||||
~U1CTS pin 94
|
||||
U2RX pin 110
|
||||
U2TX pin 112
|
||||
~U2RTS pin 106
|
||||
~U2CTS pin 108
|
||||
-------------------------- -------
|
||||
|
||||
PICtail:
|
||||
|
||||
The pins are labeled differently in Table 2-1 and in the schematic. This is
|
||||
confusing. I will trust Table 2-1.
|
||||
|
||||
--- --- ------- --- --- -----------------
|
||||
Table 2-1 Schematic
|
||||
J3 J5 J3 J5
|
||||
PIN PIN NAME PIN PIN Description
|
||||
--- --- ------- ---- --- ------------
|
||||
1 3.3V
|
||||
88 15 U1RX 88 15 SDI1A
|
||||
110 16 U2RX 110 16 SDI3A
|
||||
90 17 U1TX 17 RA10
|
||||
90 SD01A
|
||||
112 18 U2TX 113 18 SDO3A
|
||||
92 19 U1RTS 19 C2OUT/AN9
|
||||
92 SCK1A
|
||||
106 20 U2RTS 106 20 SCK3A
|
||||
94 21 U1CTS 21 SDO1A
|
||||
94 SS1/RD14
|
||||
108 22 U2CTS 108 22 SS3A/RF12
|
||||
26 3.3V
|
||||
28 GND
|
||||
|
||||
PIC32MX Configuration Options
|
||||
=============================
|
||||
|
||||
|
|
@ -625,9 +763,10 @@ PIC32MX Configuration Options
|
|||
CONFIG_PIC32MX_FCEPRIO - Flash Control Event
|
||||
CONFIG_PIC32MX_USBPRIO - USB
|
||||
|
||||
PIC32MXx specific device driver settings. NOTE: For the Sure board,
|
||||
UART2 is brought out to the DB9 connector and serves as the serial
|
||||
console.
|
||||
PIC32MXx specific device driver settings. NOTE: For the Ethernet
|
||||
starter kit, there is no RS-232 connector (even with the MEB). See
|
||||
discussion above ("") for information about how you can configure
|
||||
an external MAX2232 board to get a serial console.
|
||||
|
||||
CONFIG_UARTn_SERIAL_CONSOLE - selects the UARTn for the
|
||||
console and ttys0 (default is the UART0).
|
||||
|
|
|
|||
Loading…
Reference in New Issue