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28 Commits

Author SHA1 Message Date
Radomir Dopieralski
d076fae219 esp8266/modmachinespi: Add a factory method for SoftSPI/HSPI 2016-08-19 21:19:59 +03:00
Radomir Dopieralski
8e7dfea803 esp8266/modpybhspi: Add a HSPI module for hardware SPI support 
This module uses ESP8266's SPI hardware, which allows much higher
speeds. It uses a library from
https://github.com/MetalPhreak/ESP8266_SPI_Driver
 2016-08-19 21:19:59 +03:00
Paul Sokolovsky
3372f69586 esp8266/esp8266.ld: Increase firmware image size to 0x90000 (576K). 
Of them, 0x87000 is irom0 segment.

This is required to ship increasing number of modules and examples
developed in teh course of ESP8266 port project.
 2016-08-09 14:54:26 +03:00
Paul Sokolovsky
4d22ade102 esp8266: Enable btree module. 2016-07-31 02:39:59 +03:00
Paul Sokolovsky
6afd651f1e esp8266/esp8266.ld: Put axTLS to FlashROM. 2016-04-27 00:45:09 +03:00
Damien George
df3b1741b6 esp8266: Separate 1-wire timing funcs from Python module to save iRAM. 
esponewire.c contains low-level timing-critical functions that go in
iRAM.  modonewire.c contains Python wrapper code.
 2016-04-14 12:44:26 +01:00
Damien George
1a0a323ca8 esp8266: Add initial implementation of machine.UART. 
Currently UART(0) and UART(1) are exposed and only uart.write works.
 2016-04-06 19:45:52 +03:00
Paul Sokolovsky
8d2bcaf3cd esp8266: Minimize gap between Inst/DataRAM segments and FlashROM segment. 
With .rodata being in FlashROM now, gap can be much smaller now. InstRAM
can be max 32K, and with segment headers, that already makes it more than
32K. Then there's some .data still, and the next Flash page boundary is
0x9000. That figure should be more or less future-proof.

TODO: Refactor makeimg to take FlashROM segment offset from file name.
 2016-04-03 15:45:14 +03:00
Paul Sokolovsky
fcd6862597 esp8266: Bump iROM size to 512k. 
Needed for frozen scripts, and for future growth of binary.
 2016-04-03 00:57:27 +03:00
Paul Sokolovsky
ef0c5db2ed esp8266: Move .rodata where it belongs with -mforce-l32 help. 2016-04-03 00:51:51 +03:00
Paul Sokolovsky
cd6194aefc esp8266/esp8266.ld: Put FatFs to FlashROM. 2016-03-27 17:15:25 +03:00
Paul Sokolovsky
935e021250 esp8266: Put modpybi2c.o to FlashROM. 2016-03-26 10:59:25 +02:00
Paul Sokolovsky
f71c0699a5 esp8266: Put utils.o to FlashROM. 2016-03-26 00:39:51 +02:00
Paul Sokolovsky
9c7e3353e5 esp8266: Put lexerstr32.o into FlashROM. 2016-03-26 00:39:02 +02:00
Damien George
632d8efa05 esp8266: Add PWM support. 
PWM implementation uses a timer and interrupts (FRC1), taken from
Espressif's/NodeMCU's implementation and adapted for our use.

8 channels are supported, on pins 0, 2, 4, 5, 12, 13, 14, 15.

Usage:

    import machine
    pwm0 = machine.PWM(machine.Pin(0))
    pwm0.freq(1000)
    pwm0.duty(500)

Frequency is shared (ie the same) for all channels.  Frequency is
between 1 and 1000.  Duty is between 0 and 1023.
 2016-03-26 00:32:37 +02:00
Damien George
82b95f625e esp8266: Implement software SPI class. 
Supports speeds up to 500k baud, polarity=0/1, phase=0/1, and using any
pins.  Only supports MSB output at the moment.
 2016-03-25 23:28:13 +02:00
Paul Sokolovsky
9d7b871f58 esp8266: Store frozen modules in FlashROM. 
Requires special lexer to access their contents.
 2016-03-17 23:06:47 +08:00
Damien George
3fbbbecec9 esp8266: Put more code in iROM section. 
Also explicitly name the py/*.o files in the linker file, to enable easy
testing of putting certain ones in iRAM.
 2016-03-08 11:31:39 +07:00
Damien George
05dda0ee9e esp8266: Enable modlwip. 2016-03-08 10:21:50 +07:00
Paul Sokolovsky
259f1344ca esp8266/esp8266.ld: Link in SDK version section. 
Otherwise, os.uname() returns empty string for SDK version.
 2016-03-03 15:37:19 +02:00
Damien George
6d0629bddc esp8266: Enable float support, using 30-bit stuffed floats. 
No complex numbers though.
 2016-03-02 22:43:10 +02:00
Damien George
f09f8097d5 esp8266: Put more code in irom0 section, to get it building again. 2015-10-20 22:59:31 +01:00
Josef Gajdusek
7d8edeff4e esp8266: Update to SDK version 1.1.0 (MIT-licensed). 
1. Updated linker script, now user app appears to contain exception vector
table and oesn't work (faults) without it.
2. Commened out support for GPIO pulldown, which was removed in this SDK
version without clear explanation, but apparently because it was released
without proper validation, and now turns out it doesn't work as expected,
or there's a different function there.
 2015-05-30 20:58:59 +03:00
Damien George
304a96d7d6 esp8266: Put more literal and text obj data in irom0_0_seg. 
With newer versions of esp_iot_sdk the iram1_0_seg started to overflow.
Now it doesn't.

Addresses issue #1254.
 2015-05-13 14:49:14 +01:00
Josef Gajdusek
b47931978f esp8266: Update the linker script 
Moved modesp.o to flash and increased size of the irom0_0_seg segment. The new
value was taken from NodeMCU linker script.
 2015-05-13 00:12:54 +01:00
Damien George
e636279fe0 esp8266: Move more rodata to irom section. 
rodata can only go in iram/irom if it's accessed only using word loads
(ie no byte or half-word access).
 2014-11-29 14:36:18 +00:00
Damien George
fbea810043 esp8266: Change bignum from mpz to longlong; move some rodata to iram. 
Some rodata items can go in iram/irom segment, but not others.  With
this patch ESP now has 24256 bytes of heap ram.  It passes 228 out of
248 tests from tests/basics directory.
 2014-11-28 14:58:25 +00:00
Damien George
075d597464 esp8266: New port of Micro Python to ESP8266 wifi module. 2014-11-27 20:30:33 +00:00