STM32L4+ support

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FXCoder
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Re: STM32L4+ support

Postby FXCoder » Sat Sep 15, 2018 1:05 pm

Yes. Agree this is an excellent chip.
Reading the RM I found a treasure trove of capabilities.

FYI the new tracker using the L4+ is in final stages of layout...
- STM32L4R9
- 8MB PSRAM
- 2 x VHF/UHF radio transceivers
- GPS (UBLOX M8)
- Solar charging for LiPo
- 3 x power monitors (SOL, BATT, SYS)
- Camera (via STM DCMI this time.. prior F413 version used pseudo DCMI implemented with TIM CC trigger + DMA)
- Environment (BME280)
- SD card (reverse side)
- EEPROM for config and serial number store
- USB (of course)

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Re: STM32L4+ support

Postby FXCoder » Tue Sep 18, 2018 10:10 am

FYI...
stm32l4x.c over on http://openocd.zylin.com/#/c/4654/ was just updated to add support for STM32L4X option bytes writing.
However, the L4+ device recognition, even sans the sector erase, wasn't included in that update.
So the latest version has sort of gone backwards for our needs.
Hence we are stuck with the current hacked openocd for a while I expect.

I'll may look at doing a patch to the above latest stm32l4x.c if I can figure it out.
But I should ask first if any of the guys are in fact already working on rolling the L4+ changes in plus adding sector erase.
Don't want to double up on WIP.

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Re: STM32L4+ support

Postby twarge » Tue Sep 18, 2018 7:15 pm

If you are having difficulty with your debugger it looks like it is supported by the wonderful blackmagic probe.

https://github.com/blacksphere/blackmag ... 32l4.c#L30


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