About CTabo.1

CTabo.1 · 2024-06-25

Hello,which is the default struct fields alignment policy of GCC, on STM32 MCU? I have the following structure: typedef struct{ uint32_t param1; float param2; uint16_t param3;} PARAM_T; I expected a size of 10 bytes, but it is 12 instead...

CTabo.1 · 2024-06-10

Hello,I am dealing with fixed-point arithmetic calculations on STM32G0.To avoid integer overflow risks I have scaled properly all the values involved in calculations, but a mistake can be always possible...On Texas Instruments DSPs, I have the possib...

CTabo.1 · 2024-05-06

Hello,I have programmed one of the advanced timers in up/down mode and I have used one of the compare units to generate a PWM signal.I would also like to generate an interrupt on compare events, but only on the falling edges.Is it possible to specify...

CTabo.1 · 2024-04-04

Hello, I am developing an application, starting from stm32 empty project.The main file presents the following preprocessor header, that triggers the reported FPU initialization warning when I try to build the project. #if !defined(__SOFT_FP__) && de...

CTabo.1 · 2024-03-27

Hello,I am using for the first time the FDCAN peripheral. I have configured it in classic CAN 2.0 mode and I have problems with transmission.In particular, when I start a transmission, nothing is output on the tx pin, and the TRP field in the FDCAN_T...

CTabo.1 · 2024-06-25

Thank you @Tesla DeLorean, for the very quick response.So you are saying that all fields inside a struct, by default, are 4 bytes aligned, despite of their type.Isn't it?Thank you,Carlo

CTabo.1 · 2024-06-10

Thank you for informations.Regards,Carlo

CTabo.1 · 2024-06-10

Thank you @SofLit.So there isn't an hardware support on Cortex-M processors to switch the integer overflow from wrap mode to saturate mode, like TI.It must be handled by software...Regards,Carlo

CTabo.1 · 2024-05-07

Thank you very much!Regards,Carlo

CTabo.1 · 2024-04-05

Hello,the problem was that I have multiplexed FDCAN_TX / FDCAN_RX to the wrong pins.Indeed FDCAN_TX / FDCAN_RX can be multiplexed to different pin pairs and when I have activated the FDCAN2 peripheral on CubeMX, it automatically selected the pins pai...

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Default struct fields alignment

Integer overflow modes on Cortex

Enabling timer compare interrupt only on rising edges or falling edges

FPU initialization warning

FDCAN transmission problems

Re: Default struct fields alignment

Re: Integer overflow modes on Cortex

Re: Integer overflow modes on Cortex

Re: Enabling timer compare interrupt only on rising edges or falling edges

Re: FDCAN transmission problems