Hello Mikroe Team,
While I was reading reference manual for STM32H743 countless times to figure out why DMA is not working at all compared with STM32F4,
I found that values writen in registers in the code are different than the ones after compiling:
For registers DMA_SxFCR and DMA_SxCR values are correct up to 7 bits:
if DMA_S2CR = %1111111 , the actual value in register after compiling is 127 which is correct
but if DMA_S2CR = %11111111, the actual value is 222 instead of 255.
I checked STM32H743ZI.mbas file and definitions for above registers look as per reference manual so problem does not seem to be there.
I also tried the following following :
DMA2_S2CR.PL1=1
DMA2_S2CR.PL0=1
or
PL1_bit = 1
PL0_bit = 1
or
PL1_DMA2_S2CR_bit = 1
PL0_DMA2_S2CR_bit = 1
or
DMA2_S2CR.17=1
DMA2_S2CR.16=1
But none of them are setting properly the bits.
Please fix all this issues which are time consuming and very frustrating.
Thank you,
Sergiu
For Mikroe team: STM32H7 Wrong Registers Values
General discussion on mikroBasic PRO for ARM.
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Re: For Mikroe team: STM32H7 Wrong Registers Values
#2 Post by filip » 04 May 2020 07:35
Hi,
I suppose this is related to the following posts as well ?
viewtopic.php?f=185&t=76577
viewtopic.php?f=185&t=76555
Regards,
Filip.
I suppose this is related to the following posts as well ?
viewtopic.php?f=185&t=76577
viewtopic.php?f=185&t=76555
Regards,
Filip.
Re: For Mikroe team: STM32H7 Wrong Registers Values
#3 Post by s_sergiu » 04 May 2020 10:07
Hello Filip,
Yes. They are related to same issue. Some bits in registers cannot be written to 1 or they go in wrong position,for example register.17 = 1 and register.16 = 1 will write 1 on register.12 and register.11
It was just luck that with 0 on some positions was the required setting for my particular case .
Thank you for having a look on to this issue.
Regards,
Sergiu
Yes. They are related to same issue. Some bits in registers cannot be written to 1 or they go in wrong position,for example register.17 = 1 and register.16 = 1 will write 1 on register.12 and register.11
It was just luck that with 0 on some positions was the required setting for my particular case .
Thank you for having a look on to this issue.
Regards,
Sergiu
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