About DWann

DWann · 2022-04-19

I'm trying to get an RTC timestamp from an external event down to the us. My plan is to output the 1Hz calibration from the RTC and externally tie that to TIM8-CH1 as an input capture (reset-on-capture). The external event would route to the RTC time...

DWann · 2020-09-04

STM32L010C6TxSTM32CubeMX V 5.4.0FW_L0 V1.11.2When creating a new project that used the ADC with the DMA and some unrelated peripherals, cubeMX will generate the following initialization list in main: /* Initialize all configured peripherals */ MX_...

DWann · 2020-09-02

I've got an application where I'm performing an ADC DMA transfer where the ADC conversions are triggered by the TIM2 TRGO. Everything was running smoothly until a PCB respin forced me to switch over to TIM21 to trigger the conversion. I didn't see a ...

DWann · 2018-10-23

As I understand it, NXP's NTAG family (NTAG 210u, NTAG 21x) are fully compliant NFC Forum Type 2 and ISO/IEC14443 Type A devices, and as such, they should work with the CR95HF. However, these tags have additional features, like an originality signat...

DWann · 2018-08-01

I'm developing a bootloader for an STM32L0 MCU that will jump to one of two or more application partitions in flash. I'm using IAR 8.22.2.To make the application binaries position-independent, I've compiled them with the -ropi option. I've also modif...

DWann · 2022-04-19

I suppose I can just use the RTC alarm and avoid the question altogether.However, is there a more elegant solution that can be done internal to the MCU? It would be nice to not have to connect 2 pins together to do this.

DWann · 2020-09-08

ID code is 0x20186425, so definitely category 2 device.

DWann · 2020-09-04

It could be a lot of things. Can you post relevant sections of the code?Look out for buffer/stack overflows.

DWann · 2020-09-04

Correction to the prior post - it wasn't the ADRDY bit getting set, it was the EOS and EOSMP bits. Regardless, it works with TIM2 TRGO and not with TIM21 TRGO.I found a post about a similar problem with the STM32F74xxx. But in that case, it was do...

DWann · 2020-09-02

I've taken a step back and created a very simple application with just ADC, TIM2, and TIM21. The timers are configured identically, and both are started prior to calling HAL_ADC_Start_DMA(). If I specify the ADC conversion trigger as ADC_EXTERNALTRIG...

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Does RTC 1Hz calibration align to 1 second boundary?

CubeMX: ADC and DMA initialized in the wrong order

ADC DMA with TIM21 TRGO conversion source on STM32L010

NXP NTAG compatibility with CR95HF

Position-Independent Code - .data initialization

Re: Does RTC 1Hz calibration align to 1 second boundary?

Re: ADC DMA with TIM21 TRGO conversion source on STM32L010

Re: Looking for solution to hard fault when using UART to transmit. Particularly, when it calls HAL_GetTick() in Uart function

Re: ADC DMA with TIM21 TRGO conversion source on STM32L010

Re: ADC DMA with TIM21 TRGO conversion source on STM32L010