1. Crypto RSA H/W supports 1024/2048/3072/4096 key bits. Fall back to software implementation for other key bits.
2. For decrypt, if MBEDTLS_RSA_NO_CRT isn't defined, go CRT, or normal.
3. For decrypt, when blinding (f_rng != NULL), enable SCAP mode.
4. Recover from Crypto RSA H/W failure:
(1) Enable timed-out wait to escape from RSA H/W trap
(2) On RSA H/W timeout, stop this RSA H/W operation
(3) Fall back to S/W implementation on failure
NOTE: RSA 4096 key bits can fail with default mbedtls configuration MBEDTLS_MPI_MAX_SIZE.
Enlarge MBEDTLS_MPI_MAX_SIZE to 1024 or larger if this feature is required.
NOTE: Fixed in BSP RSA driver, for non-CRT+SCAP mode, temporary buffer for MADDR6 requires to be key length plus 128 bits.
NOTE: Fixed in BSP RSA driver, DMA buffer must be 4-word aligned, or RSA H/W will trap.
1. Prepare crypto common code
2. Support list
- SHA
- ECC
NOTE: AES/RSA are to support in other works
NOTE: Compared to M487, M467's SHA supports context save & restore (DMA Cascade mode) and so no software fallback is needed.
NOTE: M467's ECC, following M487, goes partial-module replacement and it can just improve primitives e.g. point addition/doubling by 2X,
and cannot improve high level point multiplication because MbedTLS doesn’t open it.
To improve performance best, full-module replacement is needed.
NOTE: Continuing above, add support for Montgomery curve
1. For GCC, support multi-block .data/.bss initialization
2. HyperRAM is mapped to two regions: 0x0A000000 and 0x80000000
According to default system address map, 0x0A000000 is located at 'Code' region and 0x80000000 at 'RAM' region.
With MPU enabled on Mbed OS, 'Code' region is write-never and 'RAM' region execute-never.
0x80000000 is chosen because 'RAM' regioin is naturally for HyperRAM.
3. Configurable multi-function pins for HBI
4. To locate code/data at external HyperRAM:
- Specify __attribute__((section(".text.nu.exthyperram"))) for RO/.text/readonly section type
Invoke mbed_mpu_manager_lock_ram_execution()/mbed_mpu_manager_unlock_ram_execution() to run HyperRAM code
- Specify __attribute__((section(".data.nu.exthyperram"))) for RW/.data/readwrite section type
- Specify __attribute__((section(".bss.nu.exthyperram"))) for ZI/.bss/zeroinit section type
5. Add readme
1. Based on alpha version BSP (85564a2716548e7b6d6a79a490c6d94a24cf9bcf)
2. Continuing above, tweak BSP:
(1) Add EPWM_ConfigOutputChannel2() to enable below 1Hz and below 1% duty cycle for PWM output (m460_epwm.h/c).
(2) Add dummy RTC_WaitAccessEnable() for consistency with previous ports (m460_rtc.h).
3. Target NuMaker-M467HJ V0.1 board temporarily
4. Support Arduino UNO form factor for NUMAKER_IOT_M467 target
5. Enable export to Keil/IAR project
- tools/arm_pack_manager/index.json
- tools/export/iar/iar_definitions.json
Fix an issue where CellularContext::do_connect_with_retry() does not call NSAPI_STATUS_GLOBAL_UP callback and validate_ip_address() on successful connect after failed try in blocking mode.
Fix an issue where CellularContext::do_connect_with_retry() does not call NSAPI_STATUS_GLOBAL_UP callback on successful connect after failed try in blocking mode.
Chun-Chieh Li
cyliangtw
Martin Kojtal
Deepak V. Shreshti
Michał Majcherski
Jerome Coutant
Danny Goossen
Charles
Saeed Kazemi
Andreas Reichle
yutotnh
Henrik Persson