Search found 6 matches

by rruf
Mon Apr 20, 2020 8:10 pm
Forum: Other Boards
Topic: Boot time is 10 seconds for a NUCLEO_L452RE build
Replies: 5
Views: 1230

Re: Boot time is 10 seconds for a NUCLEO_L452RE build

Did you find a solution? I am having a similar problem here, although different chip: STM32F407VGT6 - also takes strangely long to boot up.
by rruf
Mon Apr 20, 2020 12:16 pm
Forum: Other Boards
Topic: [Blackpill STM32F407 / SZM32F411] Available Flash Memory for Programs
Replies: 7
Views: 698

Re: [Blackpill STM32F407 / SZM32F411] Available Flash Memory for Programs

Jimmo: I am looking at the space indicated by Windows explorer. It always shows a little less than it should be, i guess the missing memory is for the file system setup itself. I was able to gain some more memory by editing flashbdev.c as you supposed. However, i am unsure which of the Flash blocks ...
by rruf
Sun Apr 19, 2020 9:17 am
Forum: Other Boards
Topic: [Blackpill STM32F407 / SZM32F411] Available Flash Memory for Programs
Replies: 7
Views: 698

Re: [Blackpill STM32F407 / SZM32F411] Available Flash Memory for Programs

Ok, thank you a lot. Actually, this port of Mike Causer uses the same linker file that you mentioned (stm32f405.ld), so the numbers in the map-file were also as you predicted. What i did then was to change FLASH_FS section from 112 to 496 and FLASH_TEXT section from 896 to 512 in hope to get more me...
by rruf
Sat Apr 18, 2020 5:44 pm
Forum: Other Boards
Topic: [Blackpill STM32F407 / SZM32F411] Available Flash Memory for Programs
Replies: 7
Views: 698

[Blackpill STM32F407 / SZM32F411] Available Flash Memory for Programs

Hi, i was getting started using a Blackboard with STM32F411, which has 512kB Flash. However, after uploading Micropython there was only about 45 kByte Flash left for own programs. I know i can add an external Flash chip to this board, but let's neglect that at the moment. Hence, i bought another bla...
by rruf
Sat Mar 28, 2020 1:44 pm
Forum: Other Boards
Topic: WeAct STM32F411CEU6 black pill with 64MBit external flash
Replies: 2
Views: 1381

Re: WeAct STM32F411CEU6 black pill with 64MBit external flash

Thanks, but there was also something wrong with the SPI pins, at least with my board (WeAct 2.0) they were different. However, now it works.
by rruf
Sat Mar 14, 2020 8:26 pm
Forum: Other Boards
Topic: WeAct STM32F411CEU6 black pill with 64MBit external flash
Replies: 2
Views: 1381

WeAct STM32F411CEU6 black pill with 64MBit external flash

Hi all, i was able to compile and run Micropython on the black pill according to these instructions: https://forum.micropython.org/viewtopic.php?t=7154 Thanks to mcauser. However, since remaining disk space is so small on the board, i soldered a Winbond W25Q64FVSIG flash, including the 100nF capacit...