I have a need for a TM1651 library. The datasheet is attached.
Is this very simiar to the TM1637 or TM1638 ? With respect to the communications ( not the physical attributes ) - which is best to start with? And, is this something that you could adapt for me? Then, I can test and complete the testing here.
Hello Evan,.
The interface data format looks identical to TM1637, & control registers as well (except only 4 digits).
Referring the datasheet the display address starts at 00 (TM1637 start = C0
So as a first test, try the attached after setup for your hardware in "tm1651 Test1.gcb" & see how it goes...
If digit pins are swapped(like some module boards) the ReMap will need activating & Table Digit_ReMap configured.
I suspect there may be an error in the datasheet.
It shows the display address in section 7.2 as 00H - 03H, then mentions address 0C4 & above are invalid.
Looking at https://github.com/freekode/TM1651 it uses 0xC0 in TM1651.cpp
If you get a nogo try changing back to TMaddr 0xC0
are you driving 7seg's or Bargraph ?
Last edit: ToniG 2023-05-06
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The issues are the decimal points are always on - The two right 7 segs.
Sending tmSndDig(0, Cnt1) does not clear. Note the 0. The left 7 decimal point does not operate - at all.
Looking at the sch for the board, dp is connected to seg 5.
This shouldn't be causing your issues but set #Define TM_DispLen 3
Try slowing down your program with a wait 1000ms to see each digit being written en it should.
Do all segments come on at power up ? & then clear. (if you are running the supplied test program.)
Sending a 0 byte with tmSndDig should clear the digit. (this is what tmCLRdisp uses)
Have you got a delay after the display clear(if you have an endless loop it could be writing again the digits)
What MCU are you using?
Please include your program.
cheers
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Good to see you got it working.
The TM1651 lib code I attached to this post is identical to the TM1637, I just cut down the demo to simplify testing, & .h include text.
The 'TM1651_HW_Driver.h' file can be deleted (It's unused)
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
@tonigau and anyone else.
I have a need for a TM1651 library. The datasheet is attached.
Is this very simiar to the TM1637 or TM1638 ? With respect to the communications ( not the physical attributes ) - which is best to start with? And, is this something that you could adapt for me? Then, I can test and complete the testing here.
Most grateful.
Evan
Hello Evan,.
The interface data format looks identical to TM1637, & control registers as well (except only 4 digits).
Referring the datasheet the display address starts at 00 (TM1637 start = C0
So as a first test, try the attached after setup for your hardware in "tm1651 Test1.gcb" & see how it goes...
If digit pins are swapped(like some module boards) the ReMap will need activating & Table Digit_ReMap configured.
Excellent start for me.
I will test and report back.
I like re-use!!!
I suspect there may be an error in the datasheet.
It shows the display address in section 7.2 as 00H - 03H, then mentions address 0C4 & above are invalid.
Looking at https://github.com/freekode/TM1651 it uses 0xC0 in TM1651.cpp
If you get a nogo try changing back to TMaddr 0xC0
are you driving 7seg's or Bargraph ?
Last edit: ToniG 2023-05-06
Good - not quite there.. but, good.
Driving 3 x 7 segments.
0XC0 works - well done
The issues are the decimal points are always on - The two right 7 segs.
Sending
tmSndDig(0, Cnt1)does not clear. Note the0. The left 7 decimal point does not operate - at all.Here is the actual 7seg info. https://github.com/coopzone-dc/GotekLEDC68/wiki
Looking at the sch for the board, dp is connected to seg 5.
This shouldn't be causing your issues but set #Define
TM_DispLen 3Try slowing down your program with a wait 1000ms to see each digit being written en it should.
Do all segments come on at power up ? & then clear. (if you are running the supplied test program.)
Sending a 0 byte with tmSndDig should clear the digit. (this is what tmCLRdisp uses)
Have you got a delay after the display clear(if you have an endless loop it could be writing again the digits)
What MCU are you using?
Please include your program.
cheers
Resolved! Works nicely.
I installed the latest build and it fixed the issue. I guess I had a mix of builds.
I have uploaded the code to GitHub.
https://github.com/GreatCowBASIC/Demonstration_Sources/tree/main/7_Segment_LED_Solutions/7_Segment_TM1651_OEM_Solutions
See
THANK YOU!
Good to see you got it working.
The TM1651 lib code I attached to this post is identical to the TM1637, I just cut down the demo to simplify testing, & .h include text.
The 'TM1651_HW_Driver.h' file can be deleted (It's unused)
I am very grateful. I changed the library to refer to TM1651.
I will delete that extra file.
Great job!