About JBerry

JBerry · 2021-03-08

I am using an STM32H742 MCU and have a timer with an output connected to the output compare function. The timer is triggered from another timer and set to One Pulse Mode. Basically I want the output to go high and stay high once the compare value is ...

JBerry · 2021-01-08

I am using a STM32H7 micro in an application where I need to assert a signal at a time that I determine in software. I am using the output compare from a timer for this signal and setting the CCR register to the time I want the output to be asserted....

JBerry · 2020-08-24

I am using an STM32H745 and trying to get the ADC to run at 3.333 MSPS. Currently I am prototyping on a Nucleo-144 development board which has a LQFP144 package MCU on it. While according to the datasheet (page 185), I should be able to run an ADC at...

JBerry · 2020-08-20

I am prototyping some code on a Nucleo-144 board with a STM32H745 on it. I had a project that was working at a slow speed using the HAL driver for everything, but when I tried to run it faster, it could not keep up. So I decided to pursue using the L...

JBerry · 2020-07-27

It looks like a simple refactor bug. The ethernet_link_check_state function includes the line: struct netif *netif = (struct netif *) argument;but argument does not exist and netif is the name of the function argument. I assume a previous version had...

JBerry · 2021-03-08

Okay, thanks, that answers my question. This is the diagram shown in the reference manual:What I called the "output mux" is labeled "Output selector" here. Or that plus the rest of the chain.

JBerry · 2021-03-08

Sorry, by "wait to be triggered again" I meant wait for CNT to reach CCRx again. That is, does OCxREF keep state behind the output mux? Or does forcing the output compare output to inactive clear OCxREF as well?

JBerry · 2021-01-09

Thanks. Yes, I have been looking at the Reference Manual (this is a 745, which is different from what you linked). Maybe it's just me, but the info I need often seems quite buried and hard to locate.Do you know if this will also trigger the CC1 inter...

JBerry · 2021-01-09

Originally Output Compare. I tried PWM and did not think it worked properly, but I was testing quickly, so maybe I missed something. It does seem like PWM mode 2 should do what I want.

JBerry · 2020-08-26

I am attempting to get Ethernet work on an STM32H745 on the M7 core currently. But I am using CubeIDE 1.4.2 and CubeMX 6.0.1 with ver 1.8.0 of the H7 firmware package. Since these are a bit newer, it is unclear to me which of these issues are still p...

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Re: Reset timer output compare output with timer in one pulse mode

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