| 8 Apr 2021 |
 dirbaio | And make sure you're not using the same number spi / twi | 18:51:18 |
| dirbaio | They're the same peripheral actually | 18:51:33 |
 thejpster | That's ... unexpected | 20:12:14 |
 therealprof | Are there any really usable "shortcuts"? They're a total minefield which you're pretty much certain to step on, especially when trying to write unified code for different chips. | 22:08:29 |
| 9 Apr 2021 |
|  robyoung joined the room. | 06:53:50 |
| thejpster | Shortcuts? | 08:17:23 |
| therealprof | Yeah, isn't that what Nordic calls those combined actions (it's been some time). | 08:42:17 |
| therealprof | Basically you'd use a shortcut by doing a register write and then the chip would internally do various things, e.g. wait for the bus to be ready before trying to transmit, rather than the developer having to busy poll a register and then doing another write to do the transmit. | 08:44:35 |
| therealprof | Problem is there so many errata (and probably even unknown issues) with them and different ones in different chips that it makes them pretty much unusable in my experience. | 08:45:24 |
| thejpster | Ah, I see. I don't think the UARTE HAL driver uses any of them currently. | 10:21:28 |
| thejpster | I've applied the "anomaly workaround" from the upstream C hal but ... now the code is stuck waiting for endtx or txstopped, which never comes. | 10:22:04 |
| thejpster | And nothing comes out of the UART. | 10:22:14 |
| thejpster | Ah, no. The board was clearly just stuck - nothing was coming out of the bootloader either. It seems OK now. | 10:24:32 |
| thejpster | Ugh. The latest nrf_modem library seems to do a bunch of IPC stuff that the only one didn't, which I now have to implement. | 11:17:48 |
| 11 Apr 2021 |
 barafael | Through a journey of bad soldering, I have lost access to the SWD pins of my already soldered bga nrf52840. Is there any other way to get programs on there, like boot pins and a UART? | 20:49:51 |
| dirbaio | there's no builtin bootloader :( | 20:54:37 |
| barafael | In reply to @dirbaio:matrix.org
there's no builtin bootloader :( OK, goodbye cute little board, then. There is a functioning program on there, but yeah... | 20:58:32 |
| dirbaio | there are bootloaders in the sdk but I don't think the chip comes with any from factory | 20:59:19 |
| 12 Apr 2021 |
| robyoung | Does anyone know where I can find examples or docs on using the timer compare interrupt? I am trying to convert this code to latest version of nrf-hal but I'm really struggling https://github.com/therealprof/microbit/blob/ac4fe9047f40e672cafce2ad8c7a34dfbd808d73/src/display/timer.rs#L36-L64 | 19:20:35 |
| dirbaio | current nrf-hal seems to support only cc0 interrupts | 19:26:00 |
| dirbaio | you'll have to use the PAC directly | 19:28:44 |
| robyoung | Do you know where I might find more info on how to do that? | 19:32:51 |
| dirbaio | the PAC just does reading/writing registers | 19:34:38 |
| dirbaio | what the registers do is documented in the nrf product specifications https://infocenter.nordicsemi.com/topic/ps_nrf52840/timer.html?cp=4_0_0_5_29 | 19:34:51 |
| dirbaio | and checking the source of the old hal may help too | 19:38:05 |
| dirbaio | https://github.com/nrf-rs/nrf51-hal/blob/master/src/hi_res_timer.rs#L381 | 19:38:06 |
| robyoung | Ahh, that's really helpful thank you. | 19:55:30 |
| 13 Apr 2021 |
|  jaredwolff joined the room. | 03:08:25 |
| 14 Apr 2021 |
|  Hanno Braun joined the room. | 13:21:41 |
|  Hanno Braun left the room. | 13:21:54 |
