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Preparing for AVR USB driver

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3725 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2011-06-20 02:35:20 +00:00
parent 60a069e553
commit b6e10ac301
2 changed files with 65 additions and 17 deletions
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50
configs/teensy/README.txt
View File

@ -12,6 +12,7 @@ Contents
o Pin Usage
o Halfkey Bootloader
o Serial Console
o SD Connection
o Toolchains
o Windows Native Toolchains
o NuttX buildroot Toolchain
@ -51,7 +52,7 @@ Pin Usage
10 (SS/PCINT0) PB0 Pad B0
11 (PCINT1/SCLK) PB1 Pad B1
12 (PDI/PCINT2/MOSI) PB2 Pad B2
13 (PDO/PCINT3/MISO) PB3 Pad1 B3
13 (PDO/PCINT3/MISO) PB3 Pad B3
14 (PCINT4/OC.2A) PB4 Pad B4
15 (PCINT5/OC.1A) PB5 Pad B5
16 (PCINT6/OC.1B) PB6 Pad B6
@ -145,6 +146,53 @@ Serial Console
Plus power and ground. There are numerous ground points and both USB 5V
and Vcc are available.
SD Connection
^^^^^^^^^^^^^
I have the SD-ADP SD/MMC Card Adaptor from www.gravitech.com
(http://www.gravitech.us/sdcaad.html). Features:
o On-board 3.3V regulator
o Connect directly to 3.3V or 5.0V microcontroller
o Card detect LED
o Includes 11-pin male header
o Board dimension: 2.0”x1.3”
SD-ADP Pinout / SD Connection
-- ---- ----------- -------------------------------------------------------
J2 NAME SD CARD DESCRIPTION
-- ---- ----------- -------------------------------------------------------
1 VIN (reguator) Input power to the SD card (3.3V to 6.0V)
2 GND 3,6,12,13 Common (Connects to the housing of the SD socket)
3 3V3 4 3.3V Output voltage from the on-board 3.3V regulator (250mA)
4 NC 9 NC Connect to pin 9 on the SD card (not used in SPI mode)
5 CS 1 DAT3/CS Chip select *
6 DI 2 CMD/DI Serial input data *
7 SCK 5 SCK Serial clock *
8 DO 7 DAT0/DO Serial output data
9 IRQ 8 DAT1/IRQ Interrupt request, connect to pin 8 on the SD card (not used in SPI mode)
10 CD 10 CD Card detect (active low)
11 WP 11 WP Write protect
-- ---- ----------- -------------------------------------------------------
* Via a 74LCX245 level translator / buff
Teensy SPI Connection
J2 NAME PIN NAME PAD
1 VIN
2 GND
3 3V3
4 NC
5 CS 10 (SS/PCINT0) PB0 Pad B0
6 DI 12 (PDI/PCINT2/MOSI) PB2 Pad B2
7 SCK 11 (PCINT1/SCLK) PB1 Pad B1
8 DO 13 (PDO/PCINT3/MISO) PB3 Pad B3
9 IRQ
10 CD
11 WP
Toolchains
^^^^^^^^^^

32
configs/teensy/src/up_leds.c
View File

@ -126,7 +126,7 @@ void up_ledon(int led)
switch (led)
{
case 0:
case 0:
/* The steady state is OFF */
g_ncoff = true;
@ -135,18 +135,18 @@ void up_ledon(int led)
/* Turn the LED off */
PORTD &= ~(1 << 6);
break;
break;
case 1:
/* Turn the LED on */
case 1:
/* The steady state is ON */
PORTD |= (1 << 6);
g_ncoff = false;
break;
break;
default:
return;
}
default:
return;
}
}
/****************************************************************************
@ -168,7 +168,7 @@ void up_ledoff(int led)
switch (led)
{
case 2:
case 2:
/* If the "no-change" state is OFF, then turn the LED off */
if (g_ncoff)
@ -177,18 +177,18 @@ void up_ledoff(int led)
break;
}
/* Otherwise, fall through to turn the LED ON */
/* Otherwise, fall through to turn the LED ON */
case 0:
case 1:
case 0:
case 1:
/* Turn the LED on */
PORTD |= (1 << 6);
break;
break;
default:
return;
}
default:
return;
}
}
#endif /* CONFIG_ARCH_LEDS */