About jagauthier

jagauthier · 2023-04-20

Having some trouble with reading ADC channels on this unit only when using multiple channels. I have no problem using a single channel, but as soon as I expand it to two, or more, my readings are just garbage.Code for working single channel: hadc1....

jagauthier · 2023-02-12

So, I'm having an issue getting the printf() function suite to work with floating point values.First, understand that I am not using STM32CubeIDE. It's a good tool, but I've had too many issues/complications using it. I use a custom Makefile and VSc...

jagauthier · 2023-01-30

Hello, I am interfacing with a peripheral where code exists for Arduino, but using it as reference for STM32. The SPI mode is 3. The Arduino code works, so I am attempting to reproduce it's methods for communication. An issue I am seeing is tha...

jagauthier · 2022-06-22

I have a peripheral I am communicating to using both a Raspberry Pi and also STM32G0B1 (two different devices, two different setups)I am basically trying to reproduce successful communications that the Pi us doing to this peripheral on the STM32 plat...

jagauthier · 2022-06-15

I've been fighting this problem for some time. I have a simple custom made board based on STM32G05. I'm utilizing 2 UARTs. One of them I use just for serial port debug. Takes keyboard input (but don't use it) and print out data for debugging. The ...

jagauthier · 2023-04-21

You're right. However, passing a uint16_t to HAL_ADC_Start throws an warning because it's expecting uint32_t. So there are 2 solutions.Define the dma buffer as 16 bit, and cast is 32, or define the DMA buffer to a word.Both worked. Thanks for the t...

jagauthier · 2023-02-14

Well, as far as "buffer", that's how vasprintf() works.."The functions asprintf() and vasprintf() are analogs of sprintf(3) and vsprintf(3), except that they allocate a string large enough to hold the output including the terminating null byte, and r...

jagauthier · 2023-02-13

Oh, thanks for pointing that out. It appears the issue is within my custom "printf()" void serprintf(const char *fmt, ...) { char *buffer; va_list va; va_start(va, fmt); uint16_t size = vasprintf(&buffer, fmt, va); va_end(va); HAL_UART_Transmi...

jagauthier · 2023-02-12

That was also my understanding. I resolved this by enabling -O0. Whenever optimizations are enabled in the compiler all values are 0.0.

jagauthier · 2023-02-12

Thanks for that. I did try that without any added success. What solved it was implying I did not want any form of optimizations (-O0)I can reliable break and fix it by adding (or removing) compile time optimizations.

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STM32G0B1 ADC DMA multichannel

printf and float

SPI Clock goes low when Cable Select does

SPI writing - 1 bit off

Can't communicate with another device via UART

Re: STM32G0B1 ADC DMA multichannel

Re: printf and float

Re: printf and float

Re: printf and float

Re: printf and float