About Sk.2

Sk.2 · 2020-01-17

I have attached the main file.I am using nucleo 144 board and have setup the stm32 core for 480MHz(max), so max QSPI clock allowed is 240M/2=120MHz. But am not able to generate clock pulses if I set QSPI clock prescalar less than 8 (30MHz). I have tr...

Sk.2 · 2020-01-21

Am running H743 clock from PLL (=480MHz). So max QSPI clock available is 240/((prescalar=1)+1)=120MHzQSPI kernel clock source is default, 00=rcc_hclk3 in QSPI CR register. I have also tried with PLL1_Q_CLK source.Previously i mentioned about qspi pre...

Sk.2 · 2020-01-20

Hi,Thank you for the suggestions.Here are some more inputs:Nucleo H743 isrunning at 480MHz. Am using LogicStudio16 (500MHz) to analyze QSPI signals.Am able to see QSPI CLK/ send data when QSPI prescalar is greater than or equal to 8. My requirement i...

Sk.2 · 2020-01-17

I have connected PCB of flash IC which supports upto 108MHz.Now I am testing only with nucleo board by removing flash IC interface and measuring the wave forms in logic analyzer. Still am not able to see any clock pulses/chip select lines.

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I am trying to build up a QSPI connection with the STM32H7 Nucleo Board (H743zi2). I generated the keil project(setup with CubeMX). Am measuring the CS and CLK with my oscilliscope & I cant see anything for QSPI clk more than 30MHz.

Re: I am trying to build up a QSPI connection with the STM32H7 Nucleo Board (H743zi2). I generated the keil project(setup with CubeMX). Am measuring the CS and CLK with my oscilliscope & I cant see anything for QSPI clk more than 30MHz.

Re: I am trying to build up a QSPI connection with the STM32H7 Nucleo Board (H743zi2). I generated the keil project(setup with CubeMX). Am measuring the CS and CLK with my oscilliscope & I cant see anything for QSPI clk more than 30MHz.

Re: I am trying to build up a QSPI connection with the STM32H7 Nucleo Board (H743zi2). I generated the keil project(setup with CubeMX). Am measuring the CS and CLK with my oscilliscope & I cant see anything for QSPI clk more than 30MHz.