About MasterT

MasterT · 2024-11-30

Make dual data line SPI running on nucleo-H743zi2, using SPI-2 as master and SPI-3 slave.

MasterT · 2023-11-08

ADC analog bandwidth tests:--board nucleo-G474re, on-board voltage reference.--sampling rate 2.8 msps, free-run mode, 12-bits, --156 kHz & 19.47 MHz. Approximately at 19 MHz ADC has ENOB < 6 bits, limiting factor seems to be aperture jitter about 12...

MasterT · 2019-12-15

CubeMx version 5.4.0., STM32Cube_FW_H7_V1.5.0ADC Oversampling Ratio EditBox doesn't allow to enter 1024, max value 1023. But it should, HAL_ driver makes subtraction -1, so 1024 is correct value.

MasterT · 2019-12-05

I discovered that Ethernet module on the nucleo-H743zi generates a lot of interference for analog domain. I thought, that if peripheral devise was not configured in the software and was not given explicit permition to run, it should stay in power do...

MasterT · 2019-12-03

Seems there is an error in the STLink firmware (upgraded to the latest version just now), clock is off about 1%.

MasterT · 2024-12-01

After brief review of AN4760, I get an impression that QuadSPI was specificaly designed to interface Flash memory IC. ADC has absolutely different requirements in respect to timing on CS line, clock - 32 SCLK clocks with 16 data bits.See pictures:

MasterT · 2024-11-09

There are a few issues with those bootstrap capacitors:1. Setting big value proportional to (20 Hz / F-new) is likely to damage IC during power up /down, so you can't just increase x20 times w/o designing OCP OVP protection on pin 6.2. Main purpose b...

MasterT · 2024-11-02

>> "A switching regulator will have massive problems here because a positive and a negative voltage are required. "There are switching power supplies on a market that provide both: positive and negative voltages .With all due respect, all post is jus...

MasterT · 2024-11-01

22k & 0.56uF -> 12.9 Hz cut-off frequency -3dB.Other question is acoustic system to reproduce anything below 20Hz.

MasterT · 2024-11-01

Those enormous capacitors likely suggested based on assumption of simplest power supply in use (transformer + diodes bridge rectifier) and also 4 Ohm load. For switching power supply big cap's are not required. Since <20 Hz imply not audio, than more...

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Nucleo-H743zi2 interfaced with ADS8354

stm32G474re adc performance

stm32CubeMX stm32h743 ADC oversampling settings

High noise level in the analog domain on nucleo-H743zi

ST-LINK provides 8.08 MHz instead of 8.000 on new nucleo-H743ZI2.

Re: Nucleo-H743zi2 interfaced with ADS8354

Re: TDA7294 Bridge application

Re: TDA7294 Bridge application

Re: TDA7294 Bridge application

Re: TDA7294 Bridge application