About andy_long

andy_long · 2024-04-10

hi,The datasheet says "In this mode, the TCR flag is set when the number of bytes programmed in NBYTES is transferred"Does this mean that the flag will be set when the data is transferred from TXDR to shift register, Or, the flag will be only set if ...

andy_long · 2024-04-05

Hi,I am using the RAMECC_ErrorCount example to understand the working. /* Analyse all memory */ for(Count = 0; Count < (MEMORY_SIZE / INC_OFFSET); Count++) { CurrentData = *(__IO uint32_t *)(MEMORY_BASE + (Count * INC_OFFSET)); } * @bri...

andy_long · 2024-04-05

Hi,Some doubts on the ECC functionality on STm32h74x.How can we know if the data can be corrected for cases DEDF and DEBWDF ? I always see the DEDF and SEDF fields set in my case. This bits are set when the control is hit the main(), and then I clear...

andy_long · 2024-03-21

Hi, I am trying to test my fault exceptions. In the event of an exception, I would like to get more information about the problem. In the event of an exception, I am finding the stack pointer and trying to get PC by unwinding the stack. I think the P...

andy_long · 2024-03-13

Hi,What is the effect of "VoltageRange " while erasing a sector ? Er.VoltageRange = FLASH_VOLTAGE_RANGE_1; Ret = HAL_FLASHEx_Erase(&Er, &SectorError); #define FLASH_VOLTAGE_RANGE_1 0x00000000U /*!< Flash program/erase by 8 bits */ #define FLASH_VO...

andy_long · 2024-04-18

Hi @waclawek.jan I identified that the problem is due to the context switching happening before the I2C_WaitOnFlagUntilTimeout() . I was using an old version of HAL and it did not have an additional check for the flag after the timeout.Thank you for ...

andy_long · 2024-04-11

Thank you for your reply @waclawek.jan >>Can't there be some interrupt or similar process holding up execution for 25ms?Good question. See the below snapshots: I am recording 3 timestamps startTime1, startTime2, & startTime3 (Line 4, 12, and 35), and...

andy_long · 2024-04-10

@Bubbles Thanks... I will have a look

andy_long · 2024-04-06

Thank you for your reply @liaifat85 .I understand that this is due to enabling cache, but I am trying to understand it.Could you please explain me how enabling cache is affecting this ? FAD reports an address which is not even read.

andy_long · 2024-04-05

@Bubbles Thank you for your replies. Point 1 is clear.The code snippet I showed is before the scheduler is started, which means there is no other code running concurrently. There are memories not initialized but my understanding is that you will get ...

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I2C TCR flag

RAMECC RAMECC_MxFAR

STM32H74 ECC Errors

stack unwinding during exception

FLASH_VOLTAGE_RANGE_1

Re: I2C TCR flag

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Re: STM32H74 ECC Errors

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Re: STM32H74 ECC Errors