Frequency Problem

Question

Frequency Problem

Closed this issue 5 years ago · 8 comments

Hi,

I have tested your code but it only works with SPI 2MHz. Is there any place you can help?

Answer 1 · 2020-04-19T18:33:44.000Z

Maybe you should connect 2 pull-up resistor on SCLK and MOSI(SDA)...I have tested it on 42MHZ(stm32f4) with pull-up resistors and it worked fine.

Answer 2 · 2020-04-21T15:57:50.000Z

Thank you very much for your interest. I will test and return soon.

Answer 3 · 2020-04-22T10:46:57.000Z

Again Hi,

I tested what you said. I tried tensile resistors by connecting them to 5V. The values of my resistors are 3.3K but did not work. It only works at 2MHz. Could there be a different place that I did wrong?

I am using STM32F407VGT6

Thank you very much for your interest.

Answer 4 · 2020-04-23T04:07:13.000Z

Pull-up resistors should be connected to 3.3v because stm32's IO is 3.3v logic level...And you may check stm32's clock tree configuration, I'll upload a demo project based on stm32f407vet6 later

Answer 5 · 2022-03-10T09:11:00.000Z

Hi,

I got a same problem. I tried to initialise on Stm32cubeIDE there is no error but also it isnt work :D

Answer 6 · 2022-03-12T09:10:54.000Z

Merhaba Turgay çok güzel olur gerçekten stm32f405 ve stm32f407 kullanıyorum ve slave pinini kendim yapılandırmak istiyorum Turgay HOPAL ***@***.***>, 12 Mar 2022 Cmt, 10:33 tarihinde şunu yazdı:

…

Hi, I got a same problem. I tried to initialise on Stm32cubeIDE there is no error but also it isnt work :D Melih Merhaba, Hangi denetleyiciyi kullandın ? Ve bende bunun yazılım üzerinde bir kaç revizyon yaparak düzelttiğim versiyonu var bakmak istersen gönderebilirim. — Reply to this email directly, view it on GitHub <#6 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AHEHVYQYYIJ7X2UB3ZCUK7LU7RCDDANCNFSM4MJKCLMA> . 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>. You are receiving this because you commented.Message ID: ***@***.***>

Answer 7 · 2022-03-12T09:11:47.000Z

Merhaba Turgay,

çok güzel olur gerçekten... stm32f405 ve stm32f407 kullanıyorum ve slave pinini kendim yapılandırmak istiyorum.

Answer 8 · 2022-03-12T09:55:20.000Z

Merhaba Melih,

Buradan ulaşabilirisin.

https://github.com/turgayhopal/STM32-ST7789-Library