About Simon Andersen

Simon Andersen · 2018-01-22

Posted on January 22, 2018 at 21:58Hi, I've made a pcb using the stm32F446 mcu, 64 pin package, but I have a problem with it. I have four LED's attached to pa4 to pa7. Two of these work fine, but the ones on pa6 and pa7 only lights up entirely when ...

Simon Andersen · 2017-06-25

Posted on June 25, 2017 at 14:00I am designing a PCB which uses the STM32F446 MCU. I have the first revision done and working. But I am wondering if all the pull-up and -down resistors on the board can be excluded and use the internals instead?The b...

Simon Andersen · 2018-01-23

Posted on January 23, 2018 at 13:50When in a lack of a USB stick in the lab, the camera is faster. However, I surely agree with you.

Simon Andersen · 2018-01-23

Posted on January 23, 2018 at 13:49Hooking boot0 to ground solved the problem of going to the bootloader. But the waveform is still a problem. I've had the pcb under a microscope to check for any shorts, which are not present. Furthermore, I've trie...

Simon Andersen · 2017-06-27

Posted on June 27, 2017 at 12:40I have found that most of the external pull up/down resistors can be excluded. However, when working with the SD-card, it is advisable to use an external pull-up resistor for the chip select, to avoid sending bad info...

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Problem with stm32F446 output on pa6 and pa7

Pull up/down resistors on PCB?

Re: Problem with stm32F446 output on pa6 and pa7

Re: Problem with stm32F446 output on pa6 and pa7

Re: Pull up/down resistors on PCB?