Strange, it continues to work here using the trunk code.
Does the USB on previous F4 work? see the demo ARMCM4-STM32F407-DISCOVERY-MEMS.
Giovanni
[DONE] The New STM32F429/F439
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Re: [TODO] The New STM32F429/F439
Giovanni wrote:Does the USB on previous F4 work? see the demo ARMCM4-STM32F407-DISCOVERY-MEMS.
Yes, that demo fully works with the current trunk.
~ Tectu
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Re: [TODO] The New STM32F429/F439
Tectu wrote:Giovanni wrote:Does the USB on previous F4 work? see the demo ARMCM4-STM32F407-DISCOVERY-MEMS.
Yes, that demo fully works with the current trunk.
~ Tectu
Works for me too.
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Re: [TODO] The New STM32F429/F439
Is the board the same revision? mine is marked MB1075 B-01 213364206, assuming this is the revision...
Giovanni
Giovanni
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Re: [TODO] The New STM32F429/F439
Tomorrow I will post a zip with my ./build directory, this should rule out problems related to the build environment, I will also try another board, just in case. I am out of ideas.
Giovanni
Giovanni
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trepidacious
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Re: [TODO] The New STM32F429/F439
MB1075 B-01 213360448 for me, I guess there are at least 10,000 of these out there 
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trepidacious
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Re: [TODO] The New STM32F429/F439
I disabled serial over USB and enabled USART1 for shell on pins PA9 and PA10, and this works fine, tests run ok
I'll start having a look at SDRAM since I'm very curious about performance and self-refresh.
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trepidacious
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Re: [TODO] The New STM32F429/F439
I've hacked the ST FMC driver in to the demo, and SDRAM seems to work fine - writing entire SDRAM takes 149ms and reading it back takes 455ms, which seems pretty fast compared to the PSRAM I was using on a 407 board. No errors checking contents, so that's all good
I'm sure the official ChibiOS SDRAM support will be much nicer 
I'll have a look at self-refresh mode next.
I'll have a look at self-refresh mode next.
Re: [TODO] The New STM32F429/F439
Could you pull-request your hacked demo to the community repo? But please keep the official one, name yours differently.
~ Tectu
~ Tectu
Last edited by Tectu on Wed Oct 30, 2013 2:53 pm, edited 1 time in total.