search

zapta / simple_stepper_motor_analyzer

A DYI stepper motor analyzer. This is a new design that is based on Raspberry Pi Pico and users a compact single PCB design. NOTE: The legacy STM32 based stepper analyzer was moved to this repository https://github.com/zapta/legacy_stepper_motor_analyzer.
Other
145 stars 33 forks source link

Placement file issue reported by JLCPB #3

Closed coelholm closed 3 years ago

coelholm commented 3 years ago

I have ordered the PCB from JLCPCB using production files from https://github.com/zapta/simple_stepper_motor_analyzer/tree/main/kicad/JLCPCB

They found placement minor issues with FPC1 and FPC2. From pictures looks like FPC1 is flipped horizontally, but I couldn't figure out any correction of FPC2.

It was corrected by JLCPCB before production, but I would like to let you know.

coelholm commented 3 years ago

Original Placement: Original placement   Adjusted Placement: Adjusted placement

coelholm commented 3 years ago

I will update you once it arrive and I have chance to test it.

zapta commented 3 years ago

This is exactly what happened with my order but I verified their correction and it seemed ok and when the boards worked with no problem.

I presume that they use the footprints from Easy EDA where they have different center and orientation then the Kicad footprints I used.

On Mon, Jul 26, 2021 at 6:46 AM coelholm @.***> wrote:

I will update you once it arrive and I have chance to test it.

— You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub https://github.com/zapta/simple_stepper_motor_analyzer/issues/3#issuecomment-886718013, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAQVMQLAQWYR3D57ZWMFXPDTZVRNDANCNFSM5BADO6NQ .

zapta commented 3 years ago

BTW, two assembly hints:

  1. I recommend this 10mm double side tape. I use it for the Pico, avoid it touching the main PCB, and for the TFT. Available also from Aliexpress and other sites.

https://www.amazon.com/gp/product/B072JJD2ND

  1. Check the 3D directory for the STL file of the 3D printed connector jig. I use it to cut the stepper connectors pins to the right side, keeping the TFT side of the PCB flat.

  2. I recently added a 3D model for an enclosure that doesn't need heat set threaded inserts. Easier to build and good enough.

  3. For firmware binary I recommend using the one from the latest firmware release. (unless you want to modify and compile yourself).

Please let me know if you encounter any issues.

On Mon, Jul 26, 2021 at 10:09 AM Tal Dayan @.***> wrote:

This is exactly what happened with my order but I verified their correction and it seemed ok and when the boards worked with no problem.

I presume that they use the footprints from Easy EDA where they have different center and orientation then the Kicad footprints I used.

On Mon, Jul 26, 2021 at 6:46 AM coelholm @.***> wrote:

I will update you once it arrive and I have chance to test it.

— You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub https://github.com/zapta/simple_stepper_motor_analyzer/issues/3#issuecomment-886718013, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAQVMQLAQWYR3D57ZWMFXPDTZVRNDANCNFSM5BADO6NQ .

coelholm commented 3 years ago

Thank you for those hints. I've order that tape and for sure that guide will help to cut connector.

zapta commented 3 years ago

Please see if you can get from JLCPCB the corrected placement file and then send me a pull request so others will not have to go through this confusion.

On Thu, Jul 29, 2021 at 9:48 AM coelholm @.***> wrote:

Thank you for those hints. I've order that tape and for sure that guide will help to cut connector.

— You are receiving this because you commented. Reply to this email directly, view it on GitHub https://github.com/zapta/simple_stepper_motor_analyzer/issues/3#issuecomment-889302892, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAQVMQKI4HH7XSRUARKTB73T2GA55ANCNFSM5BADO6NQ .

coelholm commented 3 years ago

I've just tried with JLCPCB support to get that file without success. They said it is not possible to generate or provide details of adjusts made in their internal system, so I decided to spend some time trying to figure out by my self.

Looks like issue was related to FPC1 (Position and rotation: 51.3,28.86,-90 ) and Q1 (Rotation only: -90)

` Designator,Val,Package,Mid X,Mid Y,Rotation,Layer

C1,100nf,SMD 0805,87.16,46.468,0,top C2,100nf,SMD 0805,52.226,46.849,0,top C3,10u,SMD 0805,44.06,47,90,top FPC1,"FPC connector 40pins, 0.5mm, TOP contacts",FH12-40S-0.5SH_1x40-1MP_P0.50mm_Horizontal_flipped,51.3,28.86,-90,top FPC2,"FPC connector, 6 pins, 0.5mm, BOTTOM contacts",FH12-6S-0.5SH_1x06-1MP_P0.50mm_Horizontal,72.68,35.93,90,top Q1,AO3400A ,SOT-23,42.964,8.622,-90,top R1,8.2 Ohm,SMD 0805,40.424,13.448,90,top R2,8.2 Ohm,SMD 0805,42.964,13.448,90,top R3,8.2 Ohm,SMD 0805,45.504,13.448,90,top `

coelholm commented 3 years ago

Those screenshots are from JLCPCB "Review Parts Placement" tool.

FPC1

Q1

coelholm commented 3 years ago

Hi @zapta

Hope you can help me with that.

Finally I have all parts, PCB and time to assembly it (at least I thought I had all parts) . LCD and CPT came from the store listed in the BOM.xlsx, but looks like I got the wrong one, with controller R61529 instead of ILI9488. I have installed firmware 1.0.3, but the LCD is blank, yet the backlight is on. At serial I can see some messages, but I can't figure out if it is will be simple change or if I should just buy the correct LCD with ILI9488.

Serial output:

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 [1500160][er:0, 0] [ -9, -25] [en:0 0] s:2/0 steps:0 max_steps:0 DMA counters: 4394, 4394, 0`

Free memory: 49127 Options: [DEFAULT] Pico SDK version: 1.1.2.WizIO

total_size=32768, free_cnt=3, free_size=7128, free_bigest_size=6988 used_cnt=818, max_used=26124, used_pct=79, frag_pct=2

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 [1500160][er:0, 0] [ -12, -26] [en:0 0] s:2/0 steps:0 max_steps:0 DMA counters: 5860, 5859, 0

Free memory: 49127 Options: [DEFAULT] Pico SDK version: 1.1.2.WizIO

total_size=32768, free_cnt=3, free_size=7128, free_bigest_size=6988 used_cnt=818, max_used=26124, used_pct=79, frag_pct=2

zapta commented 3 years ago

Hi @coelholm,

  1. Can you post a picture of your board, front and back.
  2. What TFT are you using? (link to source)
  3. The pins of the FPC connectors bridge easily from soldering. Can you test for shorts among adjacent pins that are not shorted in the schematic.
  4. Do you happen to have an oscilloscope?

On Tue, Aug 24, 2021 at 8:35 PM coelholm @.***> wrote:

Finally I have all parts, PCB and the time to assembly it. I have assembled everything and update the firmware.

The LCD backlight is on, but it blank. From serial I can see some messages, but I can't figure out what might be going on.

dfsdfsf `0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 [1500160][er:0, 0] [ -9, -25] [en:0 0] s:2/0 steps:0 max_steps:0 DMA counters: 4394, 4394, 0

Free memory: 49127 Options: [DEFAULT] Pico SDK version: 1.1.2.WizIO

total_size=32768, free_cnt=3, free_size=7128, free_bigest_size=6988 used_cnt=818, max_used=26124, used_pct=79, frag_pct=2

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 [1500160][er:0, 0] [ -12, -26] [en:0 0] s:2/0 steps:0 max_steps:0 DMA counters: 5860, 5859, 0

Free memory: 49127 Options: [DEFAULT] Pico SDK version: 1.1.2.WizIO

total_size=32768, free_cnt=3, free_size=7128, free_bigest_size=6988 used_cnt=818, max_used=26124, used_pct=79, frag_pct=2`

— You are receiving this because you commented. Reply to this email directly, view it on GitHub https://github.com/zapta/simple_stepper_motor_analyzer/issues/3#issuecomment-905155674, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAQVMQJAMXP6UCYH34EGVQDT6RQG3ANCNFSM5BADO6NQ . Triage notifications on the go with GitHub Mobile for iOS https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675 or Android https://play.google.com/store/apps/details?id=com.github.android&utm_campaign=notification-email .

coelholm commented 3 years ago

Hi @zapta ,

Thank you for your help.

1. Front JLCPCB front

Back JLCPCB back

  1. Aliexpress TFT Last item: LCD and CPT

  2. I have checked that visually, tested from Raspberry pins to the FPC connectors and I didn't notice any bridge. I have also assembled to boards and FPC connectors came assembled from JLCPCB. I have to solder only raspberry, current sensors and connectors for the stepper.

  3. I have an oscilloscope, just let me know what you need. It is a new tool for me, but I have a good friend to ask some help if I can't follow what you want me to do.

zapta commented 3 years ago

Hi @coelholm, the assembly of the PCB looks right to me. Are you sure that your TFT panel has the ILI9488 controller? The title and the description on Aliexpress mention R61529 which is a different controller.

This is how my TFT looks like https://i.imgur.com/IsJELb1.png . It's the "3.5 LCD CTP" option here https://www.aliexpress.com/item/32862869103.html

On Thu, Aug 26, 2021 at 7:16 PM coelholm @.***> wrote:

Hi @zapta https://github.com/zapta ,

Thank you for you help.

1.

Front [image: JLCPCB front] https://raw.githubusercontent.com/coelholm/simple_stepper_motor_analyzer/main/www/WhatsApp%20Image%202021-08-26%20at%2022.58.19(1).jpeg

Back [image: JLCPCB back] https://raw.githubusercontent.com/coelholm/simple_stepper_motor_analyzer/main/www/WhatsApp%20Image%202021-08-26%20at%2022.58.19.jpeg

1.

Aliexpress TFT Last item: LCD and CPT https://www.aliexpress.com/item/32376432904.html?spm=a2g0s.9042311.0.0.27424c4duNePws 2.

I have checked that visually, tested from Raspberry pins to the FPC connectors and I didn't notice any bridge. I have also assembled to boards. 3.

I have an oscilloscope, just let me know what you need. It is a new tool for me, but I have a good friend to ask some help if I can't follow what you want me to do.

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub https://github.com/zapta/simple_stepper_motor_analyzer/issues/3#issuecomment-906873223, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAQVMQJXF4MEROTJABTV52TT63YPBANCNFSM5BADO6NQ . Triage notifications on the go with GitHub Mobile for iOS https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675 or Android https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub.

coelholm commented 3 years ago

@zapta ,

It is the r61529, my mistake. I have mentioned that.

I have found a reference code for r61529 and arduino, but looking into display code for ili9488 I found some assembly code. So I have no idea on how to evaluate the effort of adding support for the r61529.

zapta commented 3 years ago

Hi @coelholm, I don't expect the current firmware to support r61529.

Can you get the LCD from the link I posted?

On Fri, Aug 27, 2021 at 2:06 PM coelholm @.***> wrote:

@zapta https://github.com/zapta ,

It is the r61529, my mistake. I have mentioned that.

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub https://github.com/zapta/simple_stepper_motor_analyzer/issues/3#issuecomment-907476171, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAQVMQLRZRK3AS5AXJ7MQNLT6745JANCNFSM5BADO6NQ . Triage notifications on the go with GitHub Mobile for iOS https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675 or Android https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub.

coelholm commented 3 years ago

Hi @zapta,

I have ordered from the link you posted. So it should solve the problem. I appreciate your support. Thank you so much.

Just as a reference this is a basic example with initialization sequence for the R61529. ESP32_LCD_MIPI_DBI_TYPE_B_TEST

zapta commented 3 years ago

Thanks coelholm.

I have a r61529 display and planned to write a driver for it but am busy and can't see how I will get to it any time soon.

The plan was to have an alternative code for this ili9488 driver https://github.com/zapta/simple_stepper_motor_analyzer/blob/main/platformio/src/display/tft_driver.cpp#L334. Need also to see if the pinout is compatible and if the firmware can read and detect which TFT is in use. Otherwise, it can be set during assembly using the reserved 'options' jumper footprints on the PCB.

Anyway, please let me know if you will encounter any problem with the new displays.

On Fri, Aug 27, 2021 at 4:20 PM coelholm @.***> wrote:

Closed #3 https://github.com/zapta/simple_stepper_motor_analyzer/issues/3.

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub https://github.com/zapta/simple_stepper_motor_analyzer/issues/3#event-5220993229, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAQVMQK55DPNCGSVKLWL6A3T7AMTRANCNFSM5BADO6NQ . Triage notifications on the go with GitHub Mobile for iOS https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675 or Android https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub.