Comments (3)
Sorry for taking so long to reply to this issue, I haven't been watching the repo for a while as I thought it was maintained by someone else. Re your issue, I can't remember exactly why I limited the channels to that specific number, it's probably because we only broke out a few ADC channels, this was before the GIGA. Can you point out where in the datasheet it mentions the maximum number of channels that can be sampled successively ? If they are indeed 16, there's no reason not increase them.
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Pinpointing the documentation is complicated by the fact that STM provides separate huge documents for each processor variant within the H7 family. Anyway, for the H747 of the giga that would be ST RM0399 version 4.0, section 26.4.11 (page 970), and the detail descriptions sections 26.6.11 through 26.6.15 on the ADC_SQRx registers.
For determining that this is indeed a common spec of the H7-family, I guess the more accessible reference is the HAL driver: targets/TARGET_STM/TARGET_STM32H7/STM32Cube_FW/STM32H7xx_HAL_Driver/stm32h7xx_ll_adc.h lists 16 ADC_REGULAR_RANK_XY ranks, without any #if for processor variant.
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@tfry-git Thanks for the references. I have this on my todo list and will fix it as soon as I can.
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Related Issues (14)
- Giga R1 Wifi Sample Rate Slower than expected HOT 8
- Programming >2M Samples/sec on DAC seems to cause Giga board to hang HOT 9
- DMA DAC intialization is unstable HOT 8
- DAC Output Hangs With No Available DMA Buffer HOT 4
- ADC read speed HOT 10
- Documentation issue - README.md points to wrong repository
- DAC maximum Voltage is low (0.33V) HOT 4
- Sampling with very high frequencies did not work as expected. HOT 12
- Synchronized ADC Capture HOT 3
- Added dual-mode support for ADC. HOT 1
- Programmable Sample Time parameter for faster sample rates
- Doc missing for AdvancedADCDual
- Adding Interleaved Sampling for 2X Sample Rate improvement HOT 4
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