Got the cables and it is still not working. I guess I poked the TCK pad next to the TMS pad before. The TMS is bad on the probe. The symptoms are the active pull-up is not pulling. The problem is that I have to fix this because it broke when I plugged it into my newly designed board that uses a 1Bitsy. If the board is at fault a new BMP would be at risk. More later.
@PaulF8080 I can ask a friend who also has 1bitsy and black magic probe to go to dorkbot and help you out. They might be able to provide some additional insight.
it is difficult to help witohut the device on the table with some scopes and multimeters
I would check if you are maybe applying some high voltages on any of the pins suddenly throughout the power cycle of your new device
also connect the bmp to an oscilloscope and see if all the signals are coming out of it correctly when you try to scan for a target
and some more other approaches to figure out if the bmp or maybe the custom device have an issue
It worked great for awhile so my setup is OK. I only used the 1Bitsies with their associated voltages. The TMS signal broke. I know what a signal looks like when there is a large RC time constant. I actually saw a similar signal on a first silicon of a CPU chip. In that case they showed me the microscope picture of metal layer short. They had to change the process rules. The only thing I can guess is an electrostatic discharge or an infant failure. Intel does burn-in to weed out infant mortality. I only wanted try out the BMP and I am moving on to another project. Maybe later I will come back.
We do not make burnin tests as that is beyond what is reasonable in this situation.
But if your hardware is genuinely broken due to hardware failure we are happy to replace it for you.
Send us an email at info@1bitsquared.com or we can meet in Portland the next time I will be going up there.
Just checking in. Thanks for the offer, but I think it was my fault. The board I plugged the BMP into is a mess because my soldering was terrible. I held my breath when I first plugged it in. The solder stencil worked great, but my hands weren't steady enough to place tiny caps etc. I bought a cheap laser to make stencils and to learn to solder better on my next project. New BMP later.
I'm asking simply because the directory structure of the 1bitsy examples has a makefile structure that is difficult for me to follow
Never mind, maybe this is it! https://github.com/1Bitsy/1bitsy-locm3-template
Here is a gist of my strung together code https://gist.github.com/lgbeno/ada9be9792f1dffa1ff7253e105235a3
It is based on this code from Paparazzi: https://github.com/paparazzi/paparazzi/blob/57d395aa00b314ee772becf8111e37a511c56f20/sw/airborne/arch/stm32/mcu_periph/pwm_input_arch.c
so with the gist above, I can confirm with BMP that my timer is running, it overflows at 32bits and trigger an interrupt
the only issue is that I am not triggering the input capture with the IO despite feeding a signal into pin A0
but I don't think that this is the case for STM32F415?
paparazzi supports both STM32F1 and STM32F4 and more recently STM32F7 too
There must just be something subtle that I'm missing in getting the PA0 port routed to TIM5
you just need to do mode setup: https://github.com/1Bitsy/1bitsy-examples/blob/master/examples/1bitsy/pwmblink/pwmblink.c#L40
this is the main difference between F1 and F4
if you look at the legends here: https://github.com/1bitsy/1bitsy-hardware
if you look here you will see that T5C1 on PA0 needs to be mapped to AF2
this means that the line needs to be:
gpio_mode_setup(GPIOA, GPIO_MODE_AF,
GPIO_PUPD_NONE, GPIO0);
gpio_set_af(GPIOA, GPIO_AF2, GPIO0);
I know it was something along those lines, this is sometimes the pain of using a new family of micros for the first time
btw, that legend is great, I was referencing the one that came printed with 1bitsy, but this one even has the AF settings!
so I had to compress it
working on a project now with F410 and BlueNRG
Nothing wrong with ATSAMDx1 either, I just need more umph for Floating point math
but yeah, calling it a day after this victory, thanks again!
