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Forum Index : Microcontroller and PC projects : This new IPS display is so cute: ST7789
| Author | Message | ||||
| matherp Guru  Joined: 11/12/2012 Location: United KingdomPosts: 10066 |
   Search for Waveshare 1.3" LCD HAT. I bought it here. The display is 240x240 pixels and uses IPS technology to give a crystal clear image. Loadable drivers below for the MM2 and MM+. The MM+ driver supports image load as well as the usual drawing commands. The pins in the example files support my HAT stand PCBs as pictured. Syntax is: ST7789 DCpin, RESETpin, CSpin, orientation '(1=landscape, 2=portrait, 2=reverse landscape, 4=reverse portrait) and of course the driver and MM.STARTUP should be stored in the library. The pins on the pi header are 19=MOSI, 23=CLK, 22=DC, 13=RESET, 24=CS, 40=KEY1, 38=KEY2, 36=KEY3, 31=UP, 37=RIGHT, 29=LEFT, 35=DOWN, 33=PUSH. Corresponding MM pins on my HAT STAND PCBs are in the listings. I'll post an update for the Pi-cromite to support this display in a separate thread. In future, this display will also be supported on the MMX and Armmite L4. MM2 Sub mm.startup Dim integer right=23, up=15, down=6 ' Left and push are reserved pins on Mircomite HAT stand for MM2 Dim integer key1=26,key2=24, key3=7 ST7789 2,16,9, 1 ' landscape is natural orientation for display End Sub ' CSub ST7789 0000029B 'spi_write_data 27BDFFE0 AFBF001C AFB10018 AFB00014 309100FF 3C109D00 8E030090 8E02001C 8064002C 0040F809 24050006 8E030090 8E02001C 8064002D 0040F809 24050005 3C02BF80 AC515820 3C03BF80 8C625810 30420080 1040FFFD 3C02BF80 8C425820 3C029D00 8C430090 8C42001C 8064002D 0040F809 24050006 8FBF001C 8FB10018 8FB00014 03E00008 27BD0020 'spi_write_command 27BDFFE0 AFBF001C AFB10018 AFB00014 309100FF 3C109D00 8E030090 8E02001C 8064002C 0040F809 24050005 8E030090 8E02001C 8064002D 0040F809 24050005 3C02BF80 AC515820 3C03BF80 8C625810 30420080 1040FFFD 3C02BF80 8C425820 3C029D00 8C430090 8C42001C 8064002D 0040F809 24050006 8FBF001C 8FB10018 8FB00014 03E00008 27BD0020 'spi_write_cd 27BDFFD8 AFBF0024 AFB10020 AFB0001C AFA60030 AFA70034 00A08821 27A20030 AFA20010 308400FF 0411FFD2 00000000 1A20000A 00008021 8FA20010 24430004 AFA30010 90440000 0411FFA7 00000000 26100001 1611FFF9 8FA20010 8FBF0024 8FB10020 8FB0001C 03E00008 27BD0028 'DefineRegion 27BDFFD8 AFBF0024 AFB40020 AFB3001C AFB20018 AFB10014 AFB00010 00808821 00A09821 00C09021 3C029D00 8C430090 80620015 24040002 14440004 00E0A021 24B30050 10000006 24F40050 24040001 14440004 3C109D00 26310050 24D20050 3C109D00 8E02001C 8064002C 0040F809 24050005 8E030090 8E02001C 8064002D 0040F809 24050005 2403002A 3C02BF80 AC435820 3C03BF80 8C625810 30420080 1040FFFD 3C10BF80 8E025820 3C029D00 8C430090 8C42001C 8064002C 0040F809 24050006 00111203 AE025820 3C03BF80 8C625810 30420080 1040FFFD 3C02BF80 8C435820 AC515820 3C03BF80 8C625810 30420080 1040FFFD 3C02BF80 8C435820 00121A03 AC435820 3C03BF80 8C625810 30420080 1040FFFD 3C02BF80 8C435820 AC525820 3C03BF80 8C625810 30420080 1040FFFD 3C10BF80 8E025820 3C029D00 8C430090 8C42001C 8064002C 0040F809 24050005 2402002B AE025820 3C03BF80 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8CE85830 AFA80010 8CE85800 AFA80014 8CE85840 AFA80018 ACE05800 3C080001 35088260 ACE85800 ACE05830 24080C00 ACE85840 7C901340 00043C03 2408FFF8 00E83824 02078025 321000FF 7C9120C0 00042143 2407FFE0 00872024 02248825 323100FF 7C721340 00032403 00884024 02489025 325200FF 7C7320C0 00031943 00673824 02679825 327300FF 24A7FFFF 02C02021 24C6FFFF 00E23821 0411FF13 00000000 3C179D00 8EE30090 8EE2001C 8064002C 0040F809 24050006 8EE30090 8EE2001C 8064002D 0040F809 24050005 0014C823 8FA20054 70547802 25EFFFFF 0280B821 00005821 0000C021 8FAD0058 3C069D00 240C0001 1000004D 3C02BF80 27DE0001 27C3FFFF 04600044 00000000 8CC30098 8C630000 007E182B 1460006A 8FBF0044 1E80002D 01E04821 1000003B 00000000 24630001 2464FFFF 04800020 00000000 8CC40094 8C840000 0083202B 1480001B 00000000 91040000 00872024 1080000D 00000000 8C445810 30840002 1480FFFD 00000000 AC505820 8C445810 30840002 1480FFFD 00000000 AC515820 1000000B 00000000 8C445810 30840002 1480FFFD 00000000 AC525820 8C445810 30840002 1480FFFD 00000000 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0040F809 24050006 8FBF003C 8FBE0038 8FB70034 8FB60030 8FB5002C 8FB40028 8FB30024 8FB20020 8FB1001C 8FB00018 03E00008 27BD0040 'getFPC 27BDFFF8 AFBF0004 00852023 03E42021 ACC40000 8FBF0004 03E00008 27BD0008 'pstring 27BDFFE0 AFBF001C AFB00018 00808021 00002021 3C059D00 24A50A48 27A60010 0411FFEF 00000000 8FA40010 3C029D00 8C42002C 0040F809 02042021 8FBF001C 8FB00018 03E00008 27BD0020 'main 27BDFFC8 AFBF0034 AFB40030 AFB3002C AFB20028 AFB10024 AFB00020 00808821 00A08021 00C09021 00E09821 00002021 3C059D00 24A50AB0 27A60018 0411FFD5 00000000 3C029D00 8C430090 8E040000 A064002E 8C430090 8E240000 A064002C 8C430090 8E440000 A064002D 8C430090 92640000 24840002 A0640015 8C420090 80430015 28640004 5480000A 24030014 3C059D00 2463FFFC A0430015 8CA20090 80430015 28640004 5080FFFB 2463FFFC 24030014 A0430014 3C109D00 8E030090 8E020010 8064002E 24050008 0040F809 00003021 8E030090 8E020010 8064002E 24050065 0040F809 00003021 8E030090 8E02001C 8064002E 0040F809 24050006 8E030090 8E020010 8064002C 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24040003 7C831804 AC43FB04 3C02BF80 34038060 AC435800 24030003 AC435830 24030C00 AC435840 16200005 3C109D00 8C515830 8C535800 8C545840 3C109D00 8E030090 8E02001C 8064002E 0040F809 24050006 8E020004 0040F809 24042710 8E030090 8E02001C 8064002E 0040F809 24050005 8E020004 0040F809 24042710 8E030090 8E02001C 8064002E 0040F809 24050006 24040001 0411FC40 00000000 8E020004 3C040002 0040F809 248449F0 24040011 0411FC39 00000000 8E020004 3C120007 0040F809 3644A120 2404003A 0411FC32 00000000 24040055 0411FC0C 00000000 8E020004 0040F809 24042710 2404002A 0411FC29 00000000 00002021 0411FC03 00000000 00002021 0411FC00 00000000 00002021 0411FBFD 00000000 240400F0 0411FBFA 00000000 2404002B 0411FC1A 00000000 00002021 0411FBF4 00000000 00002021 0411FBF1 00000000 00002021 0411FBEE 00000000 240400F0 0411FBEB 00000000 24040021 0411FC0B 00000000 8E020004 0040F809 24042710 24040013 0411FC05 00000000 8E020004 0040F809 24042710 24040029 0411FBFF 00000000 8E020004 0040F809 3644A120 8E020090 80430015 24020001 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right=49,up=52, down=45, PUSH=42, LEFT=23 Dim integer key1=58, key2=8, key3=46 ST7789 64,16,62, 1 ' landscape is natural orientation for display End Sub ' CSub ST7789 00000354 'spi_write_data 27BDFFE0 AFBF001C AFB10018 AFB00014 309100FF 3C109D00 8E030090 8E02001C 8064002C 0040F809 24050006 8E030090 8E02001C 8064002D 0040F809 24050005 3C02BF80 AC515A20 3C03BF80 8C625A10 30420080 1040FFFD 3C02BF80 8C425A20 3C029D00 8C430090 8C42001C 8064002D 0040F809 24050006 8FBF001C 8FB10018 8FB00014 03E00008 27BD0020 'spi_write_command 27BDFFE0 AFBF001C AFB10018 AFB00014 309100FF 3C109D00 8E030090 8E02001C 8064002C 0040F809 24050005 8E030090 8E02001C 8064002D 0040F809 24050005 3C02BF80 AC515A20 3C03BF80 8C625A10 30420080 1040FFFD 3C02BF80 8C425A20 3C029D00 8C430090 8C42001C 8064002D 0040F809 24050006 8FBF001C 8FB10018 8FB00014 03E00008 27BD0020 'spi_write_cd 27BDFFD8 AFBF0024 AFB10020 AFB0001C AFA60030 AFA70034 00A08821 27A20030 AFA20010 308400FF 0411FFD2 00000000 1A20000A 00008021 8FA20010 24430004 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ACE85A00 ACE05A30 24080C00 ACE85A40 7C901340 00043C03 2408FFF8 00E83824 02078025 321000FF 7C9120C0 00042143 2407FFE0 00872024 02248825 323100FF 7C721340 00032403 00884024 02489025 325200FF 7C7320C0 00031943 00673824 02679825 327300FF 24A7FFFF 02C02021 24C6FFFF 00E23821 0411FF13 00000000 3C179D00 8EE30090 8EE2001C 8064002C 0040F809 24050006 8EE30090 8EE2001C 8064002D 0040F809 24050005 0014C823 8FA20054 70547802 25EFFFFF 0280B821 00005821 0000C021 8FAD0058 3C069D00 240C0001 1000004D 3C02BF80 27DE0001 27C3FFFF 04600044 00000000 8CC30098 8C630000 007E182B 1460006A 8FBF0044 1E80002D 01E04821 1000003B 00000000 24630001 2464FFFF 04800020 00000000 8CC40094 8C840000 0083202B 1480001B 00000000 91040000 00872024 1080000D 00000000 8C445A10 30840002 1480FFFD 00000000 AC505A20 8C445A10 30840002 1480FFFD 00000000 AC515A20 1000000B 00000000 8C445A10 30840002 1480FFFD 00000000 AC525A20 8C445A10 30840002 1480FFFD 00000000 AC535A20 5465FFDD 24630001 254A0001 15540005 2529FFFF 10000011 00000000 02C01821 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AC535A00 AC545A40 3C049D00 24841478 0411FE2C 00000000 8FBF0034 8FB40030 8FB3002C 8FB20028 8FB10024 8FB00020 03E00008 27BD0038 '.rodata 'startup 37375453 64203938 65766972 6F6C2072 64656461 00000A0D End CSub |
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Grogster Admin Group  Joined: 31/12/2012 Location: New ZealandPosts: 9483 |
Very interesting.  I note that this little module also has three tact buttons and what appears to be a SMD type of rotary encoder on the left. Or perhaps a four-way-with-OK button thing. The listings for this module don't seem to state where these buttons and encoder are connected to. I expect they connect to the pins on the GPIO connector somewhere. EDIT: I see that it is a 4-with-OK switch thing on the left, and your code gives us the numbers. I might have to get one of these to play with. $16 in NZ money - not bad considering you get the extra tact buttons. Smoke makes things work. When the smoke gets out, it stops! |
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disco4now Guru Joined: 18/12/2014 Location: AustraliaPosts: 971 |
Hi Peter, Could you let me have the source for these drivers. I bought a couple of these and they don't seem to work straight up and the CS pin is not exposed. ST7789 Ali Express The problem is said to be that SPI needs to be opened in Mode 3 for these with that don't use the CS pin. ST7789 with no CS fix I will try and verify for the MM2 and MM+ If this is the fix would it be possible to open the SPI in mode 3 if specified by an addition parameter for the ARMite L4 Regards Gerry Latest F4 Latest H7 FotS |
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| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 10066 |
MPLabX project attached 2019-03-11_232622_ST7789Loadable.X.zip 2019-03-13_182054_CFunctions.zip |
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| disco4now Guru Joined: 18/12/2014 Location: AustraliaPosts: 971 |
I have a couple of these ST7789 clones that come without the CS pin exposed. I have the source for Peter's driver for the MM2 and MM+ but have not been able to get it to go as is i.e. with CS permanently selected on the board. Apparently when they work with Arduino, they use SPI mode 3 but I have no success. In the end I modified it to expose the CS pin in lieu of the BLK pin that is not really required. It works with Peter's drivers for MM2 and MM+ and natively supported on the ARMMites.  Here is my modification: 1. Remove R2 (Disconnects BLK pin) 2. Pin 8 of the ribbon is CS, it is connected to GND on the PCB but under the ribbon. I used a heat gun and lifted the ribbon, then cut the track at the base of pin 8 on the PCB, checking it was no longer connected to ground. 3. Put the ribbon back 4. Run a small wire from pin 8 to the R2 pad that goes to the BLK pin. 5. BLK is now gone and is now CS. 6. A few sprays of circuit board lacquer to glue it all down. When I modified my second one, I straighten a paper clip and slid it under the ribbon to apply a bit on tension during desoldering. I think just using a soldering iron on top with a bit of tension would get it to release. I used a very small drill, just held with fingers to remove the copper at the end of pin 8.I think there was a small via there. I am 2 for 2 success rate now, so it is doable.  The original post with this information. I had trouble locating it again so have reproduced it here. The summary on the Fruit of the Shed has been updated for this display. LCD Summary on Fruit of the Shed Latest F4 Latest H7 FotS |
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HardingJohn Regular Member  Joined: 28/07/2017 Location: AustraliaPosts: 78 |
I like this display! Could it be added to the ARMmite STM32H743ZI version?? Just know enough to get me in trouble, but not quite enough to get me out. |
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