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Hi Benj, Thank you for your quick response. I have tested your new update and it's ok on proteus. I'm going to test on a real LCD at job in few days. You means that the second sent byte is a problem only on proteus ? On a classical I2C LCD the back light is connected to P3 of 8574. How is connected ...

Good : Bad : a 0x00 is immediatly sent after the good value ! Best regards
Yannick

On proteus 8.8
On FC8 there is too many bytes in a dialog !

Software FC7 and FC8

Hi Jan, You will find here a zip file including : - 1 simple fc7 writing "hello" on a LCD I2C --> HEX file - the same file renamed and opened with fc8 --> HEX file - proteus 8.8 file with Arduino mega linked to fc7 hex --> WORKING - proteus 8.8 file with Arduino mega linked to fc8 hex --> NOT WORKIN...

Hi Jan,
Of course i can connect RW to GND in Proteus, but on the real card i can't modify this.
The bug seems to comes from the i2c dialog, there are too many bytes in the command. (the last byte)
Best regards
Yannick

Hi, I have open an existing working project from FC7 to FC8. But now the I2C LCD does not works. The LCD is a DFRobot (with PCF8574) and the card is a MEGA. sch.png I have compare the i2c dialog on both cases : Good (on FC7) : good_i2c.png Bad (on FC8) : bad_i2c.png As you cas see there is a value a...

Hi LeighM,
Sorry, I had not seen this possibility !
Thank you for your help.
Yannick

Hi,
In I2C lib, at the end of the STOP there is a big delay, why ? Thank you
Yannick

Hi,
Is it possible to edit the type in future update ?
Best regards
Yannick

Hi !
If i create a byte, and convert it as constant, the type is BYTE first...
But after some work, it becomes "Z", so "integer". Thank you
Yannick

Hi LeighM,
Thank you for your response !
I will do this.
Yannick

Hi, I'm testing : DFROBOT LCD I2C + DF ROBOT Sensor Shield V2.4 + Arduino MEGA 2560 R3. If i write a long string, on FC7 simulation is good : test-lcd-i2c-1.png On the target, there is a problem with the lines : test-lcd-i2c-2.jpg Is it a problem with the I2C LCD ? not similar that the generic one ?...

Benj,

Than you for your reply.

Best regard

Yannick

Hi Steve,

Actually "NOT" -gives "~" in C
Actually "AND" -gives "&" in C
Actually "OR" -gives "|" in C

When the var is Bool, the C could be modified maybe ?

NOT --> !
AND --> &&
OR --> ||

Maybe difficult for old sources....

Yannick

Hi Steve, Thank you for your response. So for the moment we can't use NOT AND OR with a Bool. Of course, i have change my code and use a byte and it works. It will be good to correct this bug in the compiler in next versions... Who makes the compiler ? Usually in tests (IF), i use boolean conditions...

Hi Benj,

In the fc7 file "i2c_keypad.fcfx" (top of discussion), i use the i2c component, and it works with the pcf8574 ...

but i havent any keypad to simulate in fc7.

Best regards.

Yannick

Hi Benj,

You have a PCF8574 in FC7 ? where ? and how to tell tu use the pins for the keypad ?

Do you have an example ?

Thank you

Yannick

Hi Benj !

And happy new year too !

So you plan to make this component in the next version ?

But what is the release date for fc8 ?

Best regards

Yannick

Yes Jay Dee, it will be very usefull to have basic things working on i2c, and on the same channel too. If i use the i2c keyboard from FC7 and a i2c sensor, i'm not sure that it will work on the same channel. The i2c keypad (with config of row + col + key) is very important because the normal keypad ...

Hi,

In the current version, there is no i2c keypad...

Is it in the roadmap ?

Best regards

Yannick

Hi Steve,

I have also this problem on old versions of FC, but now i am on FC7 !

Thank you for your help.

Best regards.

Yannick

Hi ! If i do a simple program, reading a bit (Bool) and inverting it and printing, it works in simulation. If i upload it in the target, the NOT does not works. I also do the test with a byte and it's good. Strange too, il i say TEST=0 and then TEST=NOT TEST, it works on target. An idea ? Yannick

Hi Benj,

I'm going to test with the real hardware.

If the problem comes from proteus, i will write to labcenters.

I have tested examples found on internet with pics and sdcard, and they work on proteus...

Thank you

Yannick

Hi Benj,

I have test with the button to insert and extraxt the sdcard.

It's the same.

Here is the full project

Thank you

Yannick