CAN'T DRIVE FT800 WITH STM32L433VC

[dbenal]

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Hello,
I want to port my project from STM32F103VC to STM32L433VC
but I have a trouble about driving FT800 with STM32L433VC.
The board I've working is used for many years with the STM32F103VC as well.
I have soldered STM32L433VC instead of STM32F103VC on the pcb and and program it with a test(just a simple evetext object) code.

But I can't drive the FT800. The code is stucked in the function "FT800_Init()".

Does anybody have an idea where the problem is?
Thanks.

[filip.grujcic]

Hello,

What version of the compiler are you using?
Do you have an external oscillator for your FT800 IC?
What is your external oscillator for STM32FL433VC?
Does a simple LED blink project work properly on STM32L433VC?
What pins are you connecting FT800 to?

Regards,

[dbenal]

Hi Fİlip,
Thank you for your respond.

The compiler version is 6.0.2
Yes , an external 12Mhz oscillator is used for FT800
Yes , an external 8Mhz oscillator is used for STM32L433VC
Yes, I've tested blinking led and see mcu is running.

FT800 pins,
SCK/SCL PB13 SPI2_SCK
MISO PB14 SPI2_MISO
MOSI PB15 SPI2_MOSI
CS PB12
PD PE0

There are two boards,
The first one is tft board. FT800, tft and related curciuts on it.
The second board is mcu board, consist of mcu and other circuts.

I have tested both boards. The tft board has been tested with the stm32f103vc(former mcu) mounted mcu board, and its ok.
The stm32L433VC mounted board is tested with different firmware (ftdi library) written in different compiler, its ok, the objects are on the screen.

Thanks.

Regards.