CircuitPython - a Python implementation for teaching coding with microcontrollers https://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=main 2019-10-13T15:08:52+00:00 2019-10-13T15:08:52+00:00 Dan Halbert halbert@halwitz.org 2019-10-13T15:08:52+00:00 urn:sha1:fc033bd954a46156d6902392f8ae21ac2872bb1c 2018-05-02T04:41:02+00:00 Damien George damien.p.george@gmail.com 2018-05-02T04:41:02+00:00 urn:sha1:a03e6c1e05203bb71ebee50af2a41de404b05078 For a given IRQn (eg UART) there's no need to carry around both a PRI and SUBPRI value (eg IRQ_PRI_UART, IRQ_SUBPRI_UART). Instead, the IRQ_PRI_UART value has been changed in this patch to be the encoded hardware value, using NVIC_EncodePriority. This way the NVIC_SetPriority function can be used directly, instead of going through HAL_NVIC_SetPriority which must do extra processing to encode the PRI+SUBPRI. For a priority grouping of 4 (4 bits for preempt priority, 0 bits for the sub-priority), which is used in the stm32 port, the IRQ_PRI_xxx constants remain unchanged in their value. This patch also "fixes" the use of raise_irq_pri() which should be passed the encoded value (but as mentioned above the unencoded value is the same as the encoded value for priority grouping 4, so there was no bug from this error). 2018-04-20T06:09:03+00:00 Peter D. Gray peter@conalgo.com 2018-04-13T13:26:58+00:00 urn:sha1:9adfd1464495a24c6359ced2db1bd842752f7a79 2018-03-28T05:29:50+00:00 Damien George damien.p.george@gmail.com 2018-03-28T05:13:21+00:00 urn:sha1:2dca693c24f9bcadb1e06113848fff620d8088dd Rather than pin objects themselves. The actual object is now pin_X_obj and defines are provided so that pin_X is &pin_X_obj. This makes it so that code that uses pin objects doesn't need to know if they are literals or objects (that need pointers taken) or something else. They are just entities that can be passed to the map_hal_pin_xxx functions. This mirrors how the core handles constant objects (eg mp_const_none which is &mp_const_none_obj) and allows for the possibility of different implementations of the pin layer. For example, prior to this patch there was the following: extern const pin_obj_t pin_A0; #define pyb_pin_X1 pin_A0 ... mp_hal_pin_high(&pin_A0); and now there is: extern const pin_obj_t pin_A0_obj; #define pin_A0 (&pin_A0_obj) #define pyb_pin_X1 pin_A0 ... mp_hal_pin_high(pin_A0); This patch should have minimal effect on board configuration files. The only change that may be needed is if a board has .c files that configure pins. 2018-03-28T02:25:00+00:00 iabdalkader i.abdalkader@gmail.com 2018-03-24T19:23:35+00:00 urn:sha1:b4f814c9b75939a33caa769e87b8d1e9c82227f3 2018-03-27T09:25:24+00:00 Damien George damien.p.george@gmail.com 2018-03-27T09:25:24+00:00 urn:sha1:6b51eb22c8200124bd1639f542f7757edb82e736 genhdr/pins.h is an internal header file that defines all of the pin objects and it's cleaner to have pin.h include it (where the struct's for these objects are defined) rather than an explicit include by every user. 2018-03-16T23:42:50+00:00 Damien George damien.p.george@gmail.com 2018-03-16T23:42:50+00:00 urn:sha1:e37b8ba5a55c99dbd1e69eb1c99651307b22fd3e The CMSIS files for the STM32 range provide macros to distinguish between the different MCU series: STM32F4, STM32F7, STM32H7, STM32L4, etc. Prefer to use these instead of custom ones. 2018-02-01T04:17:18+00:00 Damien George damien.p.george@gmail.com 2018-02-01T04:17:18+00:00 urn:sha1:72ca049de732dc6d8e30385517d835fa7d56e5e0 This will get the SDMMC clock up to 48MHz. 2018-02-01T04:02:04+00:00 Damien George damien.p.george@gmail.com 2018-02-01T04:02:04+00:00 urn:sha1:467a5926bc57549f36055938b8bbf7f9bf0dd101 So that the IRQ can be used by other peripheral drivers if needed. 2018-02-01T01:20:45+00:00 Damien George damien.p.george@gmail.com 2018-02-01T01:20:45+00:00 urn:sha1:fed1b4fb56421e8f8a1ee54b2c16296204176bb3 Using WFI allows the CPU to sleep while it is waiting, reducing power consumption.