About klaus2

klaus2 · 2019-06-06

I have the following situation. I use a STM32F030F4 flashed with a programm created with Keil uVision. I use startupfile provided from ST. Flashtool and Target dialog are configured in "default". The address for the app inside the flash starts at 0x0...

klaus2 · 2018-02-17

Posted on February 17, 2018 at 10:09 I have a problem with STM32F042 CAN Filter mechanism. Basically the CAN is working. I can send and receive messages. But my filter are passing more messages to the FIFO as defined. This is leading to an overru...

klaus2 · 2016-03-03

Posted on March 03, 2016 at 14:48Hi there, is it possible to divide the EXTI4_15_IRQHandler into smaller groups of EXTI Lines ? For example EXTI0_1_IRQHandler is responsible for EXTI line 0 and 1 and EXTI2_3_IRQHandler for EXTI line 2 and 3. But all...

klaus2 · 2014-10-31

Posted on October 31, 2014 at 14:09 I use STM32F030F4 and want to use SRam-parity-checking. The reference manual hints: ''When enabling the RAM parity check, it is advised to initialize by software the whole RAM memory at the beginni...

klaus2 · 2014-10-28

Posted on October 28, 2014 at 17:38I want to calculate a CRC over the whole Flash Memory (16kB) of a STM32F030F4. I works fine up 8kB. Putting Values >8192 for BufferLength into CRC_CalcBlockCRC(uint32_t pBuffer[], uint32_t BufferLength). The progra...

klaus2 · 2019-06-11

Thanks now it works with the IRQs as well. Now I clear the MEM_MODE[1:0] bits inside the Syscfgr1 register during SystemInit() function to overwrite the values set by the sampling of Boot0 pin. Because this sampling has mapped the system memory at 0x...

klaus2 · 2019-06-11

Ok address 0x08000000 seems to work. The application starts. But it fails as soon the the DMA IRQ from the ADC is fired. Disabling the DMA IRQ and all other works well so far. What could be the reason that it now has problems with the DMA IRQ when s...

klaus2 · 2019-06-06

Thanks for your quick reply! Do I understand you correct that the address should be 0x00000000 because the vector table is located there per default ?

klaus2 · 2016-03-03

Posted on March 03, 2016 at 17:02''EXTI'' writes into to EXTI->PR only when IRQ-mode is enabled. When the corresponding IRQ inside the NVIC is not enabled the EXTI->PR will be written but no jumps to ISRs ?! The point is that EXTI0_1 and EXTI4_15 ca...

klaus2 · 2016-03-03

Posted on March 03, 2016 at 15:51Thank you for your fast reply! The background of my question is... I have one line which should be handled as ext. IRQ e.g.Pa5. I have another line e.g. Pa10 where I want to use only the flag inside the EXTI->PR whic...

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STM32F030 Bootloader Go

CAN Filter passes more messages as defined

Split EXTI4_15_IRQHandler into smaller ISRs possible ?

Init SRam with Zero for SRamParityChecking

CRC only up to 8kB Flash instead of 16kB

Re: STM32F030 Bootloader Go

Re: STM32F030 Bootloader Go

Re: STM32F030 Bootloader Go

Re: Split EXTI4_15_IRQHandler into smaller ISRs possible ?

Re: Split EXTI4_15_IRQHandler into smaller ISRs possible ?