About ETone

ETone · 2023-03-04

ETone · 2022-10-13

I have successfully connected USBCDC to stdout by redefining __io_putchar and can use printf to talk to a PC thru its virtual serial port but am not having any success with stdin (modifying __io_getchar). Anyone done this and can advise?

ETone · 2020-03-17

Specifically I'm using the H743BI and am connecting ADC1_AWD1 to timer1's ETR using the hal function HAL_TIMEx_RemapConfig to do this. I should be able to do this in Cube but I cannot discover the setting to do this. Thoughts?

ETone · 2019-04-27

I trying to find information on the system information block of the stm32l073rb, specifically the address of the vrefint calibration value. I've looked in the ref manual, the data sheet and the L0 HAL docs and have come up empty. Please show me how s...

ETone · 2018-11-19

FromRM0433: STM32H743/753 and STM32H750 advanced ARM®-based 32-bit MCUs Reference Manual PDF3.3.4 Flash memory architecture and usage• For STM32H750xB devices: a 128-Kbyte user Flash memory block containing one user sector of 128 Kbytes (4 K Flash wo...

ETone · 2023-04-17

For the moment I have solved the problem. I was using the handleTickEvent routine to update the TouchGFX screen using the Unicode::snprintf function. This forced the snprintf to execute every time the handle tick event ran. I switched to an approach ...

ETone · 2023-04-16

As do I. Same TouchGFX version, also partial frame buffer, ILI9341 based TFTLCD, SPI communications.

ETone · 2023-03-06

Yes, my bad.

ETone · 2023-03-05

Because in some sections of my application I want the dac to output continuous waveforms from a lookup table and in other sections I want it to output a single pass of a lookup table in response to an event. What I now have found to work is:((DMA_Str...

ETone · 2022-10-13

Some success - the system will operate getc correctly once but further calls to putc will not call __io_getchar.

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User Activity

change dac dma from circular to normal using HAL?

Connect USBCDC to stdin

Is there any way to set which source is connected to the timer's external trigger (ETR) in the cube?

STM32L073 system information block address map

Is eeprom emulation possible on the stm32h750?

Re: TouchGFX hangs in _exit()-function in syscalls.c

Re: TouchGFX hangs in _exit()-function in syscalls.c

Re: change dac dma from circular to normal using HAL?

Re: change dac dma from circular to normal using HAL?

Re: Connect USBCDC to stdin