| Gabor Abonyi | f371d27 | 2022-07-19 13:54:05 +0200 | [diff] [blame] | 1 | ########################### |
| 2 | Musca-S1 Platform Specifics |
| 3 | ########################### |
| 4 | |
| 5 | **************** |
| 6 | DAPLink Firmware |
| 7 | **************** |
| Dávid Házi | 6cf7896 | 2023-02-03 10:23:37 +0100 | [diff] [blame] | 8 | The code on Musca-S1 is running from on-chip eMRAM (2MB non-volatile bootable memory). |
| 9 | Make sure that the DAPLink FW for QSPI/MRAM is downloaded to the board. You can find on the |
| Gabor Abonyi | f371d27 | 2022-07-19 13:54:05 +0200 | [diff] [blame] | 10 | `Arm Community page <https://community.arm.com/oss-platforms/w/docs/463/musca-s1-firmware-update-qspi-mram-boot-recovery>`__ |
| 11 | A short description of how to update the DAPLink FW can be found there as well. |
| 12 | |
| 13 | ******************** |
| 14 | Platform pin service |
| 15 | ******************** |
| 16 | |
| 17 | This service is designed to perform secure pin services of the platform |
| 18 | (e.g alternate function setting, pin mode setting, etc). |
| 19 | The service uses the IOCTL API of TF-M's Platform Service, which allows the |
| 20 | non-secure application to make pin service requests on Musca S1 based on a |
| 21 | generic service request delivery mechanism. |
| 22 | |
| Amjad Ouled-Ameur | b13961e | 2025-05-29 09:51:33 +0200 | [diff] [blame^] | 23 | ******************** |
| 24 | Musca S1 Default CPU |
| 25 | ******************** |
| 26 | |
| 27 | Musca S1 is a dual core platform (being based on the `SSE-200 subsystem <https://developer.arm.com/documentation/101104/0200/introduction/about-the-sse-200>`__), |
| 28 | boot ROM code uses CPU0 running on 50MHz, while TF-M switches to CPU1 running on 200MHz. |
| 29 | An additional benefit to switching the default core is that CPU1 can access SRAM3 |
| 30 | as Tightly Coupled Memory (TCM), while CPU0 can't. |
| 31 | When the core switch happens, CPU0 sleeps in a WFI loop to save power. |
| 32 | |
| 33 | More information can be found in the following `patchset <https://review.trustedfirmware.org/c/TF-M/trusted-firmware-m/+/38198/3>`__. |
| 34 | |
| Gabor Abonyi | f371d27 | 2022-07-19 13:54:05 +0200 | [diff] [blame] | 35 | -------------- |
| 36 | |
| Dávid Házi | 6cf7896 | 2023-02-03 10:23:37 +0100 | [diff] [blame] | 37 | *Copyright (c) 2023, Arm Limited. All rights reserved.* |