CircuitPython - a Python implementation for teaching coding with microcontrollers https://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=esp-extra-scripts 2016-06-29T13:29:01+00:00 2016-06-29T13:29:01+00:00 dpslwk dps.lwk@gmail.com 2016-06-29T11:26:43+00:00 urn:sha1:f3636a7b46942b7141d75214015a00a4c4aa21d6 2016-05-13T13:45:40+00:00 Damien George damien.p.george@gmail.com 2016-05-13T13:45:40+00:00 urn:sha1:87981fc517ff1fafd1513af3e26df39bf57e6978 For example, the following code now works with a file on the SD card: f = open('test', 'rb') # test must be 1024 bytes or more in size f.seek(511) f.read(513) Also works for writing. Fixes issue #1863. 2016-05-06T09:53:25+00:00 Damien George damien.p.george@gmail.com 2016-05-06T09:53:25+00:00 urn:sha1:88153dc56a03938473fca8c0de46535f8ae3109b Addresses issue #2034. 2016-05-05T13:51:20+00:00 Tobias Badertscher python@baerospace.ch 2016-03-22T10:28:35+00:00 urn:sha1:e64032d6fdeb079de2ace20b64899d1ceb6754f1 The main thing is to change the DMA code in a way that the structure DMA_Stream_TypeDef (which is similar to DMA_Channel_TypeDef on stm32l4) is no longer used outside of dma.c, as this structure only exists for the F4 series. Therefore I introduced a new structure (dma_descr_t) which handles all DMA specific stuff for configuration. Further the periphery (spi, i2c, sdcard, dac) does not need to know the internals of the dma. 2016-02-10T23:40:35+00:00 Damien George damien.p.george@gmail.com 2016-02-10T23:36:19+00:00 urn:sha1:e372e83b3042cb48fbe5706522d92f7aa5404ae6 2016-02-10T23:40:10+00:00 Damien George damien.p.george@gmail.com 2016-02-10T16:32:57+00:00 urn:sha1:b33a7705966a743c5e4c0c3c3bb83e6d97b5e84d This patch adds support to fsusermount for multiple block devices (instead of just one). The maximum allowed is fixed at compile time by the size of the fs_user_mount array accessed via MP_STATE_PORT, which in turn is set by MICROPY_FATFS_VOLUMES. With this patch, stmhal (which is still tightly coupled to fsusermount) is also modified to support mounting multiple devices And the flash and SD card are now just two block devices that are mounted at start up if they exist (and they have special native code to make them more efficient). 2016-02-10T23:40:10+00:00 Damien George damien.p.george@gmail.com 2016-02-10T16:21:38+00:00 urn:sha1:3770cd2e7062d0844cee7b69ec9d9f80a2ad1206 You can now create (singleton) objects representing the flash and SD card, using: flash = pyb.Flash() sdcard = pyb.SDCard() These objects provide the block protocol. 2015-12-22T21:00:20+00:00 Damien George damien.p.george@gmail.com 2015-06-10T13:25:54+00:00 urn:sha1:401af50dc081faa421e7caef18fde2beb15632e4 Adds a lot of code, makes IRQs a bit less efficient, but is very useful for debugging. Usage: pyb.irq_stats() returns a memory view that can be read and written, eg: list(pyb.irq_stats()) pyb.irq_stats()[0] pyb.irq_stats()[0] = 0 The patch provides general IRQ_ENTER() and IRQ_EXIT() macros that can be modified to provide further IRQ statistics if desired. 2015-12-04T11:39:21+00:00 Damien George damien.p.george@gmail.com 2015-12-04T11:39:21+00:00 urn:sha1:f4c17378b359d7b371e005aaac2dc8d86a88f8d8 Consider the following scenario: SD card is being read by pyboard; USB irq comes in for MSC read request; SD card needs to be read from within USB irq while SD read is already ongoing. Such contention needs to be avoided. This patch provides a simple solution, to raise the irq priority above that of the USB irq during SD DMA transfers. Pyboard and PC can now read from the SD card at the same time (well, reads are interleaved). 2015-11-24T15:44:16+00:00 Damien George damien.p.george@gmail.com 2015-11-24T15:21:37+00:00 urn:sha1:9936aa3f87046c92ec8721a5f5734612e178e8eb