Post Created date
Trying to do simple a simple FFT
Have you seen the official CMSIS DSP documentation?   https://developer.arm.com/tools-... https://arm-software.github.io/C...   What is the problem you're currently...
Thursday, 12 May 2022 - 01:09
Samd21 External Interrupt clock setup
GiraffeDaddy wrote:   The reason so much is being used is that I need to use a LUT containing 512 uint32_t's. Its taking up half of my program memory, The stack size is...
Thursday, 12 May 2022 - 01:02
ATSAML21 identifying DMAC issue occurring
aross11 wrote:Is there a recommended procedure for populating the Atmels that if followed perfectly should help rule things out?   Yes   Reflow profile, see datasheet...
Tuesday, 10 May 2022 - 00:42
EIC INTFLAG bits
lisican wrote: is quite counterintuitive to me.   You and me both, I've only been working with ATSAM devices for ~9 months now, and I must admit I found the learning curve...
Tuesday, 10 May 2022 - 00:25
EIC INTFLAG bits
lisican wrote:   But I notice there are no bitwise instructions in the Thumb instruction set - I'm coming from PICs with their rich bitwise access and maybe I have to get rid...
Tuesday, 10 May 2022 - 00:04
Read and Write bytes to external SPI MRAM (SAMV71)
Have you used SPI before, on any other MCU besides the SAMV71?   Are you familiar with terms like CPOL, CPHA, dummy bits, dummy bytes, slave registers , host/client, master/...
Monday, 9 May 2022 - 22:56
Samd21 External Interrupt clock setup
GiraffeDaddy wrote: Lajon wrote: why you are doing this low level stuff and not just extint_chan_set_config     Because I am already using 99% of my data memory usage...
Monday, 9 May 2022 - 22:47
Program stuck in Dummy_Handler
Aha, glad you found the issue - however, function pointer calls should always be checked for NULL prior to dereferencing where you are unable to guarantee they are not NULL...
Monday, 9 May 2022 - 17:31
EIC INTFLAG bits
The other thing to consider, is why do you want to access like this?   Given the NVIC get's only 1 interrupt line for the entire EIC (unlike AVR INT pins which have...
Sunday, 8 May 2022 - 19:44
Samd21 External Interrupt clock setup
GiraffeDaddy wrote: while (GCLK->CLKCTRL.reg & GCLK_CLKCTRL_CLKEN) { /* Wait for clock to become disabled */ }   What exactly are you trying to do? I've never...
Sunday, 8 May 2022 - 19:09
EIC INTFLAG bits
You can't use exactly the syntax you're after, this is just how C's bitfields work.   The EXTINT member of the bitfield has been setup 16 bits wide. If you're really tied to...
Sunday, 8 May 2022 - 19:02
Program stuck in Dummy_Handler
DrDatasalad wrote:- In NVIC->IABR1 the 16th Bit is set. Which Interrupt is that? Is there any valuable documentation of the NVIC?   Yes, in the datasheet rev G, check...
Sunday, 8 May 2022 - 18:22

Pages