Ohayden: /* Updating Gumstix via Kermit */

2010-03-13T22:53:50Z

Updating Gumstix via Kermit

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== Fixing Gumstix from U-Boot ==
If you mess up the init scripts, you can recover from u-boot (using serial port) with the following:
<pre>
setenv bootargs $bootargs init=/bin/sh
boot
</pre>

== Connecting with Minicom ==
Make sure you set hardware control off and use "minicom -o" to load.

== Connecting with Kermit ==
kermit -l /dev/ttyUSB0
<pre>
set flow-control none
set carrier-watch off
set speed 115200
connect
</pre>

== GPIO / 60 pin Hirose Connector ==
* Set pin 48 (GPIO 47) to GPIO mode
echo "GPIO out" > /proc/gpio/GPIO47
* Clear voltage on pin 48
echo "GPIO out clear" > /proc/gpio/GPIO47
* Set voltage on pin 48
echo "GPIO out set" > /proc/gpio/GPIO47
* Pins / GPIO references: http://docwiki.gumstix.org/index.php/New_60pin_connector_chart and http://docwiki.gumstix.org/index.php/Image:Tweener-pcb.jpg

* For in, I was working with /proc/gpio/GPIO44 as GPIO47 wouldn't go low

=Gumstix's Build Root Info=
*Revision 1443 is the last one that's less than 4MB (my original Gumstix, a basix 200-bt, only has 4MB of nand)

==Check Logs==
svn log -r1400:1450 http://svn.gumstix.com/gumstix-buildroot/trunk/

==Initial Checkout==
svn co -r1443 http://svn.gumstix.com/gumstix-buildroot/trunk gumstix-buildroot

==Building Buildroot==
*In the revision fold (1443), do the following:
cd gumstix-buildroot
make defconfig
make menuconfig
*Choose "Package Selection for the target"
**Page down until you find "wifistix" and unselect it (we don't have wifi on the original gumstix, we do on the new one being used by HoBo though)
**Select Exit, Exit, and Yes to save
make

==Add i2c Support==
*In the buildroot environment:
cd gumstix-buildroot/build_arm_nofpu/linux-*
make ARCH=arm menuconfig
*Select "Device Drivers"
*Select "I2C support"
**Set "I2C support" to "M" for module
**Set "I2C device interface" to "M"
**Select "I2C Hardware Bus support"
***Set "Intel PXA2XX I2C adapter" to "M"
*Select Exit (4 times)
*Select "Yes" to save the new config
*Copy the .config over to the right location:
cp .config ../../target/device/Gumstix/basix-connex/linux.config
*Remove the old kernel to trigger a new build
rm arch/arm/boot/compressed/vmlinux
*Run make to build again
cd ../../
make
*Replace the filesystem
*You'll want to also load the new drivers by adding the following /etc/modules:
# I2C
i2c-dev
i2c-pxa
==Updating Gumstix via Kermit==
*See the "Connecting with Kermit" above on how to start Kermit
*We're using the serial port on the tweaner and a serial to usb adapter on the laptop (eee).
*Power on the Gumstix and when it says "Hit any key to stop autoboot:" press any key
*Now you're at uboot and ready to update the flash
*Set the Gumstix to receive the new file at the right address:
loadb a2000000
*Get back to the Kermit prompt by pressing CTRL+\ and then c
*Send the file by typing:
send rootfs.arm_nofpu.jffs2
*You'll see a transfer screen pop up and once it's done, type the following to get back to the Gumstix/uboot
connect
*We need to protect uboot from getting erased and then erase the rest with the following commands:
protect on 1:0-1
erase all
*Now we'll copy the file we transferred to the flash (the "${filesize}" is a macro that tells it to use the last transferred file size)
cp.b a2000000 40000 ${filesize}
*Once it's done copying, then type the following to boot up
boot

=MMC Support=
*On the gumstix, open /etc/modules and uncomment:
mmc_block
pxamci
*Also comment out the following as such:
#smc91x
#pcmcia

=Older Gumstix's 60 Pin Hirose Connector=
{| border="1" cellpadding="2"
!|Signal
!|GPIO
!|Pin
!|Signal
!|GPIO
!|Pin
|-
|GND ||   || 1 || GND ||   || 60
|-
|L_DD(9) || GPIO(67) || 2 || USB_N ||   || 59
|-
|L_BIAS || GPIO(77) || 3 || BITCLK || GPIO(28) || 58
|-
|L_DD(3) || GPIO(61) || 4 || L_PCLK || GPIO(76) || 57
|-
|SDATA_OUT || GPIO(30) || 5 || L_DD(15) || GPIO(73) || 56
|-
|L_DD(8) || GPIO(66) || 6 || L_DD(14) || GPIO(72) || 55
|-

|GND ||   || 7 || FFRXD || GPIO(34) || 54
|-
|L_DD(13) || GPIO(71) || 8 || L_DD(7) || GPIO(65) || 53
|-
|L_DD(12) || GPIO(70) || 9 || L_DD(5) || GPIO(63) || 52
|-
|L_DD(11) || GPIO(69) || 10 || L_DD(10) || GPIO(68) || 51
|-
|USB_P ||   || 11 || L_DD(1) || GPIO(59) || 50
|-
|IRRXD || GPIO(46) || 12 || NACRESET ||   || 49
|-
|L_DD(2) || GPIO(60) || 13 || IRTXD || GPIO(47) || 48
|-
|FFCTS || GPIO(35) || 14 || L_DD(4) || GPIO(62) || 47
|-
|SDATA_IN1 || GPIO(32) || 15 || SYNC || GPIO(31) || 46
|-
|L_LCLK || GPIO(75) || 16 || NSSP_TXD_RXD || GPIO(84) || 45
|-
|PWM(1) || GPIO(17) || 17 || NSSP_FRAME || GPIO(82) || 44
|-
|L_DD(0) || GPIO(58) || 18 || SDATA_IN0 || GPIO(29) || 43
|-
|I2C_SDA ||   || 19 || GND ||   || 42
|-
|I2C_SCL ||   || 20 || L_FCLK || GPIO(74) || 41
|-
|NSSP_CLK || GPIO(81) || 21 || L_DD(6) || GPIO(64) || 40
|-
|TDO ||   || 22 || FFRTS || GPIO(41) || 39
|-
|NSSP_TXD_RXD || GPIO(83) || 23 || NTRST ||   || 38
|-
|TDI ||   || 24 || NRESET ||   || 37
|-
|TMS ||   || 25 || PWM(0) || GPIO(16) || 36
|-
|FFTXD || GPIO(39) || 26 || HWTXD || GPIO(48) || 35
|-
|TCK ||   || 27 || HWRTS || GPIO(51) || 34
|-
|V_BATT ||   || 28 || HWRXD || GPIO(49) || 33
|-
|V_BATT ||   || 29 || HWCTS || GPIO(50) || 32
|-
|V_BATT ||   || 30 || GND ||   || 31
|}

[[Image:Gumstix_60pin_hirose.png|755x539]]

=Notes=
*I added a bakup copy of revision 1443's dl folder at dl.cache in the root of gumstix_connex

Gumstix - Revision history

Ohayden: /* Updating Gumstix via Kermit */