• Home
  • Help
  • Search
  • Login
  • Register
  Show Posts
Pages: [1]
1  Hardware and U-Boot firmware / Hardware / Re: GuruPlug versus SheevaPlug on: February 15, 2010, 02:42:41 PM
differences? both devices have the same cpu 88F6281,  as you can see in the block diagram
http://www.globalscaletechnologies.com/skins/skin_1/images/gpsp_blockdiagram.jpg
http://www.globalscaletechnologies.com/skins/skin_1/images/Sheeva_Plug_BlockDiagram.png
2  Hardware and U-Boot firmware / Hardware / Re: GuruPlug versus SheevaPlug on: February 15, 2010, 12:20:54 PM
1) the guruplug just have more external components (wlan, bluetooth, esata, usb-hub) and _no_ internal jtag/uart to usb interface Sad
2) with the jtag you can control the cpu manually (stepping, execute assemble commands, dump register, etc). it is used to debug the cpu and you can program the internal flash if you have lost the bootloader.
3  Hardware and U-Boot firmware / Hardware / Re: GuruPlug versus SheevaPlug on: February 10, 2010, 02:41:15 AM
no it will be the PXA168, as you can see here:
http://www.globalscaletechnologies.com/skins/skin_1/images/gpsd_blockdiagram.jpg

i think the GuruPlug Display will not be able to play 1080p vidz Sad but nice try
4  Hardware and U-Boot firmware / Hardware / Re: LED control on: November 27, 2009, 07:02:20 PM
yes, but u can only control the blue one:
http://plugcomputer.org/plugforum/index.php?topic=797.msg5118#msg5118

echo 255 > /sys/devices/platform/leds-gpio/leds/plug:green:health/brightness
or
echo 255 > /sys/class/leds/plug:green:health/brightness
5  Hardware and U-Boot firmware / Hardware / Re: Controlling green LED. on: October 14, 2009, 07:01:19 AM

Do you have details of the kernel patch involved?  I need to weigh up the cost of not being able to use standard kernels anymore.... and all the hurt that cross compiling brings...
Ack, you have to add the new "LED" to the struct gpio_led sheevaplug_led_pins[] and add the GPIO to the sheevaplug_mpp_config
Code:
static struct gpio_led sheevaplug_led_pins[] = {
{
.name = "plug:blue9:health",
.default_trigger = "default-on",
.gpio = 49,
.active_low = 1,
},
{
.name = "plug:green8:health",
.default_trigger = "default-on",
.gpio = 48,
.active_low = 1,
},
{
.name = "plug:green6:health",
.default_trigger = "default-on",
.gpio = 46,
.active_low = 1,
},
{
.name = "plug:green5:health",
.default_trigger = "default-on",
.gpio = 45,
.active_low = 1,
},
};
Code:
static unsigned int sheevaplug_mpp_config[] __initdata = {
MPP29_GPIO, /* USB Power Enable */
MPP49_GPIO, /* LED */
MPP48_GPIO,
MPP46_GPIO,
MPP45_GPIO,
0
};
6  Hardware and U-Boot firmware / Hardware / Re: Controlling green LED. on: October 07, 2009, 05:59:17 AM
It's possible, but not that easy.

This is for the Rev 1.3
First you have to desolder R242 and put it on the place of R70.
You also have to patch the Kernel, but that's very easy, i have done it already.
Pages: [1]