ELEKTOR FORUMS

Hello,

I would like to explain my progress with DB

I think the coldfire is a good µP for experiences, that's why I chose DB.

Because web pages in flash don't leave enought flash memory to store user programms,
i decided to store these web pages in a SD card.

Here is step after step DB life:

----- V1.0 ----- 2008 08 15 begin
1/ Mounting DB board and TBLCF(programm it cf doc)
2/ Compile and flash elektor sources with only one modif: IP address
status Ok no problem

3/ Write program to acces QSPI CFire and connect 6 wires
(SS, SCK, MOSI, MISO +alim) to SD card
4/ Adapt EFSL ( Embedded File System Library ) by Lennart Yseboodt and Michael De Nil.
status I could read files writen on SD card with the PC

5/ Change http server FLASH file acces by EFSL file acces
6/ Modify http server to add http descriptor before files
( the descriptor was added by emg_dynamic_ffs.exe )
7/ Change elektor web pages to use 8+3 filename ( EFSL is 8+3 )
status IExp and FFox can read pages

8/ Because changing files on SD is difficult (extract SD, put in PC...reset DB),
i wrote a special client "h_trans.exe" (VC6.0 project) for the PC to do that.
9/ The server layer is through http port 80 ( FTP tunnel )
10/ When i wrote the server layer i found a bad test of joshua key
status the dialog between DB and PC client seems to be correct

----- V1.1 ----- 2008 09 -- SPI software
11/ the fragility of connections ( QSPI SD ) is too high
12/ i decided to use 4 portIO as SPI software
13/ i choosed portAN4, 5, 6 et 7
14/ i lost 4 analog inputs but connections are easy (J7)
15/ few lines of code and the SPI software works as well as hardware
status SPI software OK no significant problem of timing

----- V1.2 ----- 2008 10 10 Camera C328R
16/ I read in elektor that we could use a camera C328R ( serial )
17/ CFire has 3 uarts: uart0 used by debug line, uart1 inaccessible (like QSPI)
18/ we can use uart2 (tertiary function of SDA SCL lines) on J6-2 and J6-4
19/ I had some problems to use uart2:
2 defines MCF_GPIO_PASPAR_SCL_TXD2
and MCF_GPIO_PASPAR_SDA_RXD2 are false in "mcf5223_gpio.h"
20/ few lines of code to test camera
status i can read camera with the command line, but a few times, the camera freezes during launch

----- V1.3 ----- 2008 11 01 IO expander
21/ I need more IO than the 3 IO available on the board
(1 to switch on/off camera and 4 to drive a stepper motor)
22/ i decided to use an IO expander MCP23S17 ( microchip )
23/ like SD card driver, i use the 4 IO TOR on J6 to drive by SPI the MCP23S17
24/ the SPI driver of IO expander is called every 5ms by "timer_isr()"
25/ because the driver period, the relay output is still operational
( driver restore the relay value before exit )
26/ there is only LED flickers a little
27/ 1µF capa mounted on R7 solves the problem
status IO expander works correctly

----- V1.4 ----- 2008 11 05 Correction bugs
28/ correction of bugs that i made in http server (V1.0)
29/ change http header parser methode to remove bytes until GET request finished
status system works

----- V1.5 ----- 2008 11 11 Camera following
30/ add NCV4276 (regulator enabled) to switch off/on camera
( one output bit MCP23S17 )
31/ establishment of a state machine for managing the camera
( init, capture, write in a file... )
32/ when i created a new task to run the state machine, i received calloc errors
33/ so integration of the state machine in "tk_misc.c->tk_keyboard()" that has nothing to do
status http client can read the camera jpeg file

----- V1.6 ----- 2008 11 15 Camera guidance
34/ add a hook to move the camera with http client (like switch on/off relay)
35/ func "form_camera_function" in "freescale_static_ffs_utils.c" when we receive "?camera&xxx"
36/ this function invoke CAMERA_action(xxx)
status OK when we move the slider in http client, DB print: position(xxx)

----- V1.7 ----- 2008 11 29 Stepper motor
37/ Management stepper motor to position the camera
38/ add ULN2803A connected on MCP23S17 to drive unipolar stepper motor (floppy disk)
( 4 output bits MCP23S17 )
39/ few lines of code
40/ "Control_Motor()" called by "IO_SPI.c->IO_Update()" every 5ms
the speed ( 200 steps/sec ) is fast enough for me
2 user functions:
MOTOR_SetPosition() set new motor target
MOTOR_GetStatus() return target reached or not
41/ add a potentiometer to read the motor position
42/ now, CAMERA_action(xxx) positions the camera before capture
status OK http client can position camera and capture jpeg

----- V1.8 ----- 2008 12 06 C328R preview mode
43/ the dynamic with jpeg capture is bad
44/ i added C328 preview mode ( 80x60 16greys ) in camera state machine
45/ to succeed, i must recover the available RAM on the board
46/ i needed 2518 bytes to alloc bmp buffer
47/ * 512 suppress gFile in FMS.c
48/ * 1280 in reducing the boot stack from 0x800 to 0x300 "mcf5223evb_iflash.lcf"
49/ * 640 in "http_tunnel_ftp.c"
50/ * 1552 in reducing NUMBIGBUFS from 8 to 7 "ipport.h"
51/ writing in the bmp buffer is made by the driver irq
52/ modify file manager "FMS_ReadFileInfo()" and "FMS_read_bloc()" to read buffer or SD card
53/ http server can read asynchronously the bmp without waiting for the end of grab
54/ modify CAMERA_action(xxx) to have only one http client who moves camera
status OK http client can move camera in preview mode every second and capture jpeg when press button


------------------------------------------------
In this state, we can read in xMAP file that 0x1AA68 are used in flash memory
section .text uses 0x0 to 0x1A5C0
section .data uses 0x4A8 stored in ___DATA_ROM

------------------------------------------------
If somebody wants to use more than 4 analog inputs,
i think it is possible to use PTC[0-3] (quaternary function of DTIN0-3).
These signals are available on RN1 and RN3.
of course, we must change the code.

Digibutler files ( CodeWarrior 6.3 project ):
"DigiButler software aaaa mm jj.zip"
.\DigiButler software\
Doc\
Digibutler.rtf historic (fr)
Hardware.pdf Electronic schematic i use( EAGLE4.15 Elektor(fr) nov 2005 )
screen\ some screen copy
site\ my web pages to test DB. must be loaded on SD card (by h_trans.exe)
SW_Main_Board\src\projects\
camera\ camera manager
EFSL\ Embedded File System Library ( not used as library )
exemple\ Elektor sources
IO\ IO expander and stepper motor control
NicheLite\ Elektor sources
web_page\ Elektor web pages


Annexe ( VC6.0 project ):
"H_Trans.zip" FTPTunnel client software

sources: http://pagesperso-orange.fr/HLaidet/Digibutler.htm

Greetings, Henri

Hello,

Digibutler following

----- V1.10 ----- 2008 12 30 Telnet Server
63/ Change uart irq mode: we can pipe fifos.
64/ Build simple telnet server task
status telnet works

65/ add autorization (login+password) like http
status telnet works

----- V1.11 ----- 2009 01 05 Corrections
66/ CFire RAM is too short for many tasks (calloc1 failed)
Suppress telnet task
68/ Append hook in http server task
2 functions HL_task_init() et HL_task_check() called from freescale_http_server.c
These functions call Telnet_init() and Telnet_check()
In this way, we use http stack
constraint1: sockets need to be non bloquant
constraint2: wake up host task in callback socket "TK_WAKE(&to_emghttpsrv);"
status DB works without calloc failed

----- V1.12 ----- 2009 01 06 SNTP Client ( Simple Network Time Protocol )
69/ Add SNTP client to update RTC
SNTP process like telnet is activated from HL_task_xxx()
70/ Interrogation of a list of SNTP server every 10 seconds until a server responds
71/ Update RTC with server datas
72/ Relance after 8 hours of waiting
status SNTP seems to work correctly

----- V1.13 ----- 2009 01 08 Time-stamped trace file
73/ Add trace file with time-stamped events
74/ Event Sntp success ( server IP address )
75/ Event Http connection ( client IP, user, password OK or KO )
76/ Event Telnet connection ( client IP, user, password OK or KO )
status tracing is ok

"elektor.mcp" is CW6.3
"elektor7.1.mcp" is CW7.1

Digibutler files:
"DigiButler software aaaa mm jj.zip"
.\DigiButler software\
Doc\
Digibutler.rtf historic (fr)
Hardware.pdf Electronic schematic i use( EAGLE4.15 Elektor(fr) nov 2005 )
screen\ some screen copy
site\ my web pages to test DB. must be loaded on SD card (by h_trans.exe)
SW_Main_Board\src\projects\
camera\ camera manager
Telnet\ telnet server
EFSL\ Embedded File System Library ( not used as library )
exemple\ Elektor sources
IO\ IO expander and stepper motor control
NicheLite\ Elektor sources
SW_Main_Board\build\m5223evb\
elektor.mcp CW 6.3 project
elektor7.1.mcp CW 7.1 project
web_page\ Elektor web pages

sources: http://pagesperso-orange.fr/HLaidet/Digibutler.htm

Greetings, Henri

Hello,

Digibutler following

----- V1.16 ----- 2009 02 05 SMTP Client ( Simple Mail Transfer Protocol )
92/ Add SMTP client to send emails
93/ Activ or not with #define HL_SMTP_CLIENT in "ipport.h"
Source code in "smtp.c"
94/ SMTP process like telnet is activated from HL_task_xxx()
95/ The #define HL_SMTP_SERV_IP sets smtp server IP ( nslookup smtp.server.com )
96/ A user function SM_SendEmail( dest, subject, message) is available
97/ Add "smail" command for test
status send a mail works

----- V1.17 ----- 2009 02 11 DataLogger + expander + send eMail
98/ Use IO Expander MCP23S17 (V1.3) any input
99/ hic, expander inputs don't work
100/ Fix bug: bad init MCF_GPIO_DDRTA in "IO_SPI.c"
status Expander inputs run

101/ Activ expander with #define HLA_HARDWARE in "ipport.h"
102/ In this mode, DLog wins 16 IO tor
However, we lose GPT1-3 used to drive the expander (V1.3)
103/ Now, each bit TOR is individually programmable
on falling, rising or all edge
104/ Add to send an email for each event (except periodic)
105/ Update "dlstate" and "dlconf" commands (v1.16)
for managing SMTP client and expander
106/ Adaptation of H_Trans to manage the new functions
- selective programming of each bit (including expander)
- programming SMTP server IP address
- programming recipient email address
status DB datalogger works

sources: http://pagesperso-orange.fr/HLaidet/Digibutler.htm

Greetings, Henri

Hello,

Digibutler following

----- V1.20 ----- 2009 03 11 Disk accessories
115/ Add CD command in disk menu
Write current path after prompt
Update directories date and time
status DB works

----- V1.21 ----- 2009 03 29 SNTP and the daylight saving time
116/ After switching to daylight saving time, DB is not out of date
117/ The correcting value is SNTPoffsetGMT ( second )
118/ Add a line in the conf file (v1.18) to programm SNTPoffsetGMT
status DB works

----- Big modifs: we change version -------------

The name change
- from "DigiButler software aaaa mm jj.zip"
- to "DigiButler_V30 aaaa mm jj.zip"

The project is only CW7.1 ( CW6.3 canceled )


----- V2.00 ----- 2009 04 05 Using new version of Nichelite
118/ Using new code downloaded from Freescale site (still Nichelite stack)
119/ Adapt code to run on digibutler
status DB works

120/ Translating code (v1.21) into new stack
Attention files organisation is different
The binary file (ELF) to load on DB is "WebAutomation"
121/ "H_Trans.exe" ( VC6.0 ) is dropped
122/ The successor "H_Digibutler" is write with "Microsoft Visual C# 2008" (Free)
It has the same features
It is my first csharp programm
status DB works, and dialog with "H_Digibutler" also

----- V2.1 ----- 2009 05 09 Adding IO TOR board for datalogger
123/ Build an expansion board with 16 Inputs 24Vdc + 8 Outputs relais
Use 2 expanders MCP23S17 connected on J6 (v1.3)
We can connect many boards ( addressing boards )
124/ There is a parameter #define NB_IO_EXPANDERS 2 (for one board) in "ipport.h"
125/ Update IO manager for many expanders
Soft in "IO\IO_SPI.c"
126/ Update "Datalogger.c" for many expanders
127/ Update "H_Digibutler.exe" to browse datalogger records
status DB works

At this stage, i made a prototype (veroboard) of the IO expansion.
I made schematic, placement and routing of the board (EAGLE 4.15).
I expect Elektor Service PCB works (presented in the June issue).


NEW TREE FILES:
"DigiButler_V30 aaaa mm jj.zip"
.\DigiButler_V30\
--- Doc\
------ Digibutler_V30.rtf ____ historic (fr)
------ Hardware.pdf __________ Electronic schematic i use( EAGLE4.15 Elektor(fr) nov 2005 )
------ HardDigilogger.pdf ____ DataLogger electronic schematic
------ Expander_xxx __________ IO expansion board 16 Inputs 8 Outputs
--- screen\ __________________ some screen copy
--- site\ ____________________ my web pages to test DB. must be loaded on SD card (by H_Digibutler.exe)
--- build\cw\m5223x_evb
------ DigiButler_V30_7x.mcp _ CW 7.1 project
--- src\
------ cpu\mcf5223x
--------- processor.h ________ New defines
------ projects\
--------- camera\ ____________ C328R camera manager
--------- comm2\ _____________ MCA25 camera manager
--------- DataLogger\ ________ datalogger process
--------- EFSL\ ______________ Embedded File System Library ( not used as library )
--------- example\ ___________ Freescale sources
--------- IO\ ________________ IO expanders and stepper motor control
--------- NicheLite\ _________ Freescale sources
--------- Telnet\ ____________ Telnet server


Annex ("Microsoft Visual C# 2008" project):
"H_Digibutler.zip" ___________ FTPTunnel client software


sources: http://pagesperso-orange.fr/HLaidet/Digibutler.htm

Greetings, Henri

Hello,

Digibutler following

----- V2.3 ----- 2009 06 25 PLC Addition of functions
136/ Outputs are not exclusively boolean any more
137/ Addition actions on integers
- Move ------- assignment
- Add, Sub --- Arithmetical operators
- And, Or, Xor logical operators
- Lsr, Lsl --- shifts
138/ PLC goes to V1.1
139/ H_DigiPLC integrates the new features (see doc).
status DB works

These functions allow to count the events on the IO TOR.

I was afraid by bounces on the sensors.
But with a scantime of 5ms and by using edges, they don't perturb me.
Then if somebody has problems with bounces, we will install a fast debounces software (to replace some MC14490).

sources: http://pagesperso-orange.fr/HLaidet/Digibutler.htm

Greetings, Henri

Great work Henri,

i have downloaded your software and have tried it.

I have a question, Why don't you use the RTOS to create tasks?

Is it difficult?
I have created one task and it is running well.

Thanks

Thanks Henri,

I'll take in account this issue.
i have done a simple task but as you say there are RAM requirements.

So I will probably use your same method.
you have much more expecience.

Regards.

Hello,

Digibutler following

----- V2.7 ----- 2010 12 02 CANopen Slave

You want to build your own CANopen Remote IO unit.
Here is an implementation of CANopen Slave on Digibutler.

When i looked for informations to realize a CANopen stack, i found the CANopen stack "CanFestival".
This stack is free, licensed with LGPL, wrote by Mr. Edouard TISSERANT.

The stack requires a driver CAN (hardware-specific) and a driver TIMER
- CAN: writing a driver for FlexCAN
- TIMER: using existing timer system handler (1ms)

Of course, you have to make the hardware I described in the last post.

CANopen uses EDS (Electronic Data Sheet) file to configure the node.
For CanFestival, it is the same thing.
The configuration i choosed is:
- 16 Digital Inputs
- 16 Digital Outputs
- 4 Analog Inputs(16 bit)
I wrote the EDS file "CANopen\Dictionary\DigibutlerObj.eds" with "CANeds" (freeware).
Codewarrior doesn't show it (extension .eds is not recognized).

Software:
- CANopen_init() starts FlexCAN driver, and remap IOs in an easy to use interface.
- When CAN messages are received, the driver store them in fifo (not to loose)
- CANopen_check() called from the main HL_task_check() periodicaly in a loop.
it is the CAN messages pump commonly called every <50µs (the max is <250µs if only CANopen activity)
- CANopen_Timer_ISR() updates the IO and runs the CANopen stack.
Soft activ or not with #define HL_CANOPEN in "ipport.h".
CANopen uses more than 0x6800 bytes Flash.

You can see on screenshot the CAN bus activity with 2 Slaves
node 8 = DigibutlerK3
node 7 = Digibutler
ana0 = 0x07e5 pot middle (little endian)
ana1,ana3: = 0 pot min
ana4 = 0x0ff3 pot max

sources:
http://hlaidet.pagesperso-orange.fr/Digibutler.htm


Greetings, Henri

Hoi Henri,

Your Digibutler work looks very nice.

Being new to Digibutler can i ask you a question how to get V30 running.

My Digibutler board is still 100% standard.
The default 1.0 version from Elector is working after fixing the network using a TBLCF.
V30 is also working now after using the 2011-11-27 version and comment some ipport.h settings which are not there jet.

Which SD connector (hardware) can you use? Does a SD connector contain any electronic logic or is it just to connect to the pins?

Kind Regards, Luc

Hi Henri,

Many thanks, it is working now using the TC ports.
Spend some time to findout a 4GB card isn't working but when i tried a 1GB card it worked immediately. >= 4GB SD cards seems to use the SDHC specs which probably differs from the SD specs.

Greetings, Luc