Messages

1

For Sale / Wanted / Re: wtb: 68HC11 "tiny" board

« on: February 28, 2021, 02:01:04 pm »

Yes, there smaller ones, with less components and features.
As "plan B", I can design my PCB and assemble my board if I can't find anything around 

2

For Sale / Wanted / wtb: 68HC11 "tiny" board

« on: February 26, 2021, 12:29:19 pm »

hi
Years ago on eBay there were small and tiny 68HC11 boards. Nowadays it seems there is only something located in the US, and it's almost some Motorola kit, so too big for what I'd like to do.

Grifo in Italy has still something for sale, but they ask 250 euro shipped and this is really crazy price.

I am looking for a little 68HC11 board, with at least 8Kbyte of ram, and 8Kbyte of ROM.

If anyone has one for sale, or know where I can buy one, please let me know. My max budget is 130 euro shipped.

Thanks.

3

Zaurus - Hardware discussion / Re: SL-C3100 Zaurus HDD Check

« on: February 15, 2021, 11:59:26 am »

it will need to be compiled for each OS separately (Sharp/Cacko, pdaXrom, void...), is this correct?

dunno. if you can compile badblocks, then you can compile it; it uses direct IO functions provided by glibc, I haven't tested uclibc and musl.

4

Zaurus - Hardware discussion / Re: SL-C3100 Zaurus HDD Check

« on: February 14, 2021, 05:05:59 pm »

I wrote my own disk testing program 

Code: [Select]


# make
- generating interface public for disktest ... done
- generating interface public for host_io ... done
- generating interface private for disktest ... done
- generating interface private for host_io ... done
- compiling disktest ... done
- compiling host_io ... done
- linking to disktest

# obj/disktest /dev/hdc
opening /dev/hdc ... done
Checking for bad blocks in read-write mode
From 0 to 1.610.735.615, by 8.192 bytes at time
   [  0   ] BBBBBBBBB..BBBBB.BBBBBBBBBBBB........BBBBBBBBBBBBBBBBBBBBBBBBBBB
   [ 16.6 ] BBBBBBBBBBBBBBBBBBBBBBB.BBBBBBBBBBBBBBBBBB.BBBBBBBBBBBB....BBBBB
   [ 33.3 ] BBBBBBBBBBB...............BBBBBBBBBBB.BBBBBBBBBBBBB.BBBBBBBBBBBB
   [ 49.9 ] BB...BBBBBBBBBBBBBBB.BBBBBBBBBBBBBBB......BBBBBBBBBBBBBBBBBBBBBB
   [ 66.6 ] BBBBBBBBBBBBBBBBB....BBBBBBBBBB.BBBBBBBBBBBBBBB....BBBBBBBBB.BBB
   [ 83.3 ] BBBBBBBBBBBBBBBBBB.BBB.BBBBBB.BBBBB..BB..BB.BBBBB.BBB...........
   [ 99.9 ] .

"." means no problem
"B" means error during I/O

The above disk is a voluntary damaged one used to test the disk-testing program. This application works good with electro-mechanical HDDs but doesn't work with SSDs and flash-devices.

Since it only does 1 pass, it's ~3x times faster than the program"badblocks".

5

Zaurus - Arch Linux ARM support / Re: Testing : Minirc And Busybox

« on: February 02, 2021, 06:05:21 am »

Very interesting topic! Not only for my Zaurus PDA, but also for my embedded PPC board.
Thanks!

6

Zaurus - Arch Linux ARM support / Re: Sdl With Directfb Packages

« on: February 02, 2021, 05:17:09 am »

Basically three Overlays

• Gentoo Overlay 2010, kernel 2.6.24, target=Zaurus PDA {C1k,C3K}, video=/dev/fb0
• Gentoo Overlay 2017, kernel 4.11.0, target=PPC32 embedded SBC, video=MDA
• Gentoo Overlay 2021, kernel 5.11, target=Arm7 Personal PDA project, video=defiolcd

usbdefiolcd is an hardware project I am working at for a Personal PDA made around the H2 chip, a LCD panel, and an FPGA. I will need to write a kernel module ... a new experience for me, never done anything similar before. We will see.


Directfb for the Gentoo Overlay 2010 is almost complete

Code: [Select]

2021-01-31--18-03-26---2021-01-31--19-41-35 - [ Overlay::dev-libs/DirectFB ] - success - dev2.19.1/4.4.3

I can try to adapt it for the Overlay 2017 and Overlay 2021. Directfb was dropped in 2015, and things have changed a lot in 11 years.

7

Zaurus - Hardware discussion / Re: SL-C3100 Zaurus HDD Check

« on: January 31, 2021, 12:45:22 pm »

 

This is the equipment I am using. I bought it on Amazon for 15 euro.
The showed microdrive is the damaged one

8

Zaurus - Hardware discussion / Re: SL-C3100 Zaurus HDD Check

« on: January 31, 2021, 12:42:07 pm »

Tested it again today
 

Code: [Select]

# badblocks -swv /dev/sda
Checking for bad blocks in read-write mode
From block 0 to 3999743
Testing with pattern 0xaa: done, Reading and comparing:  done
Testing with pattern 0x55: done, Reading and comparing: done
Testing with pattern 0xff: done, Reading and comparing: done
Testing with pattern 0x00: done, Reading and comparing: done
Pass completed, 0 bad blocks found.

3999744 blocks ~ 4GB. It took 4 hours to check.

9

Zaurus - Hardware discussion / Re: SL-C31000 / Strange switch

« on: January 31, 2021, 12:39:51 pm »

Thanks 

10

Zaurus - Hardware discussion / Re: USB/serial cable for debugging?

« on: January 31, 2021, 12:28:09 pm »

I have already done something similar for an embedded PPC40x board, and I am going to "copy" my previous idea to bootstrap my Zaurus.

I want to support tftboot, a way to transfer files over the ethernet, u-boot uses it to bootstrap devices. Unfortunately, the only available versions of "u-boot" for the PXA chip used in Zaurus don't support the usb frame required to support a usb-ethernet driver for tftpboot. Adding it it would require too much work, so I prefer to modify a Linux kernel for this.

Pretty like in kexecboot, but i don't want to support the LCD and keyboard, my final application will redirect the console to the serial port for everything.

bootlader -> serial console
kernel -> serial console + vterm on screen/keyboard

11

Zaurus - Arch Linux ARM support / Re: Sdl With Directfb Packages

« on: January 31, 2021, 11:09:39 am »

hi
I am working on my old gentoo 2010 stage4, and I'd like to add DirectFB to my overlay.
Is there any repository? I need sources, and patches.

Any news since 2015/2016?

let me know, this topic is awesome 

12

For Sale / Wanted / wtb: miniPCI TL-WN861N wireless card

« on: January 31, 2021, 08:04:08 am »

Looking for qty=4, miniPCI TP-LINK wireless 2.4Ghz 300Mps cards, model "TL-WN861N"
I can no more find on eBay, they would be great for a crazy project

13

Zaurus - Hardware discussion / Re: USB/serial cable for debugging?

« on: January 30, 2021, 11:42:12 am »

are you going to use "kgdb" (kernel gdb stub) through serial?

14

Zaurus - Hardware discussion / Re: SL-C31000 / Strange switch

« on: January 30, 2021, 11:40:39 am »

Is there any doc about these "hacks"? Soldered Bluetooth, etc

15

Zaurus - Hardware discussion / Re: SL-C3100 Zaurus HDD Check

« on: January 30, 2021, 11:13:59 am »

I unmounted my micro-drive, and checked it with a USB-CF adapter.
I used the utility badblocks

Code: [Select]

# badblocks -swv /dev/sda

Unfortunately it's seriously damaged, so I ordered a new micro-drive.
Tested it again, it resulted perfectly working.