About RCooke88

RCooke88 · 2024-10-07

Hi Folks,This has been driving me crazy. I'm using a Nucleo-L031 board and it's connected to a I2C TCA9548A 1:8 multiplexer. I am trying to read 4 sensors connected to the mux chip. I have 4.7K pullups installed at the Nucleo's I2C pins. The sensor b...

RCooke88 · 2024-09-26

Hi Folks,I have the latest version of the IDE (1.16.1) but now the search feature won't work. It will only return an error:When I try to search for "HAL_StatusTypeDef I2C_WaitOnSTOPFlagUntilTimeout" I get the following set of errors:Text SearchAn int...

RCooke88 · 2024-08-09

Hi Folks,I'm having an issue with just reading and writing new values to the RTC. I'm using a custom board that contains a 32.786Khz crystal and in CubeIDE the LSE is setup properly. I also have a battery connected to Vbatt,I'm using the following to...

RCooke88 · 2024-07-29

Hi Folks,I'm having a problem with connecting my ST-Link/v2 to my new board with a STM32H7ARIT micro on it.I have had no problem connecting the ST-Link to another board with the STM32F103RBT6 micro on it. I have the Debugger configuration in the STM3...

RCooke88 · 2024-03-08

Hi @SofLit,I need to develop a unique serial number for one of our products that will go into production soon. I'd rather use the UID that is built into the STM32H7A3 chip but I have some questions.I understand that it is a 96bit value that I can rea...

RCooke88 · 2024-10-07

I have highlighted the missing STOP bit. Channel 0 is the SCK line connected to the Nucleo board. Channel 1 is the SDA line connected to the Nucleo board. The yellow output is connected to the SDA line of the 1:8 mux chip (TCA9548A).From the image i...

RCooke88 · 2024-08-12

I got it working by only using half of what you originally suggested. This is what works (so far): /* USER CODE BEGIN Check_RTC_BKUP */ if((RCC->BDCR & 0x8000) == 0) // rtc enabled ? <-- this 2 lines { /* USER CODE END Check_RTC_BKUP */ /...

RCooke88 · 2024-08-11

AScha.3,Here's my function with your two lines included: void MX_RTC_Init(void) { /* USER CODE BEGIN RTC_Init 0 */ if((RCC->BDCR & 0x8000) == 0) // rtc enabled ? <-- this 2 lines { /* USER CODE END RTC_Init 0 */ RTC_TimeTypeDef sTime = {0}...

RCooke88 · 2024-08-09

I'm not quite following what you are suggesting. Here is the STM32CubeIDE generated RTC.C code:/* RTC init function */ void MX_RTC_Init(void) { /* USER CODE BEGIN RTC_Init 0 */ /* USER CODE END RTC_Init 0 */ RTC_TimeTypeDef sTime = {0}; RT...

RCooke88 · 2024-06-07

CAlbe.2,Did you ever figure out what was causing the problem? I have a somewhat similar issue with our Nucleo-H7A3ZI-Q board and a 7" LCD display that is using the RA8875 controller chip. We're using a 4 wire SPI interface. Sometimes the screen comes...

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How do I fix a HAL_BUSY condition during I2C comms?

STM32CubeIDE search feature not working

Is there a secret code required to read and write the RTC value in a STM32H7A3RIT chip?

Is there a trick to connect a ST-Link-V2 to a STM32H7A3RIT micro?

STM32H7A3 Unique Device ID number question

Re: How do I fix a HAL_BUSY condition during I2C comms?

Re: Is there a secret code required to read and write the RTC value in a STM32H7A3RIT chip?

Re: Is there a secret code required to read and write the RTC value in a STM32H7A3RIT chip?

Re: Is there a secret code required to read and write the RTC value in a STM32H7A3RIT chip?

Re: STM32 and ST7066U LCD doesn't work