I too read that post - I don't see in there where the procedure to recover from the hung state is described.
On Wed, Oct 7, 2020 at 10:35 AM evilwulfie <[email protected]> wrote: > FSM_BUSY is recoverable without a POR > https://e2e.ti.com/support/processors/f/791/t/689926 > > I have used the ADC without any errors in a product > buffer the input with an opamp for protection and your good to go > > > On 10/7/2020 8:58 AM, Darren Freed wrote: > > I personally would not use the AM335x onboard ADC in any form for a > production device. There is a known issue (Google FSM_BUSY) where the FSM > gets into a hung state that cannot be resolved without POR. I banged my > head against that problem for several months before realizing what was > happening. My setup involved using a PRU to acquire the data and send it to > user space via rpmsg. I've moved on to an ADS1299 based solution on a > custom cape. > > If you use devmem (or similar) to view the ADC registers (ADCSTAT in > particular) during the hung state, you can see that bit 5 and bit 4 will > both be set: FSM_BUSY=1 and STEP_ID= idle, which obviously isn't possible, > meaning the FSM is hung and can't recover without POR. > > > > > > On Wed, Oct 7, 2020 at 2:41 AM [email protected] < > [email protected]> wrote: > >> Hello beaglebone community, >> >> This is my first post. >> >> I used beaglebone to develop a prototype for for a self-cleaning >> smoothie machine that we plan to commercialize (see video below). It has >> multiple sensors and outputs to run motors/solenoids while ensuring user >> safety. >> >> https://www.youtube.com/watch?v=76XDJK5V0PA&feature=share&; >> ab_channel=PascalKriesche >> >> Right now we have. BBB running a linux OS and running a script we >> wrote in JS. One issue we have had was the 1.8V analog sensors losing >> signal which required us to reboot the system every tie that occurred. We >> also had an issue flashing 2 out of our 4 prototypes with an image that >> worked (seems to be a firmware version issue leasing to an incorrect >> hardware pin mapping). >> >> I know eventually we want to use a chip on board, but for the initial >> production run we were hoping on sticking to a prebuilt onboard computing >> module for the initial 1000 units in order to save time and costs. I was >> wondering if anyone in this forum had experience launching a product with >> beaglebone and if this instability can be resolved with the correct I/O >> filtering on our PCB and software functionality. >> >> Thanks in advance! >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to the Google Groups >> "BeagleBoard" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/beagleboard/faf26e97-c403-4dac-adc8-7acede4832b9n%40googlegroups.com >> <https://groups.google.com/d/msgid/beagleboard/faf26e97-c403-4dac-adc8-7acede4832b9n%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/beagleboard/CAMRnUvBQbX5Fnd39y3i0%2BVkJOZhmAyuqMb2oZtOkdDSAD1E%3DEA%40mail.gmail.com > <https://groups.google.com/d/msgid/beagleboard/CAMRnUvBQbX5Fnd39y3i0%2BVkJOZhmAyuqMb2oZtOkdDSAD1E%3DEA%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/beagleboard/3e2cdf5b-bace-f537-22a8-93830e86c4ea%40gmail.com > <https://groups.google.com/d/msgid/beagleboard/3e2cdf5b-bace-f537-22a8-93830e86c4ea%40gmail.com?utm_medium=email&utm_source=footer> > . > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CAMRnUvBUN-q4bqMhm1m25XKvg_dLo%2B9cLUDsQ38TuPuruP8EaQ%40mail.gmail.com.
