Konstantin Kondrashov e5b280f173 dport: Bigfix dport_read code move to IRAM ...

A new method of workaround an error with DPORT is to ensure that the APB is read and followed by the DPORT register without interruptions and pauses. This fix places this implementation in the IRAM to exclude errors associated with the cache miss.

2018-05-21 22:00:51 +05:00

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esp32

dport: Bigfix dport_read code move to IRAM

2018-05-21 22:00:51 +05:00

include/soc

Especially when internal memory fills up, some FreeRTOS structures (queues etc) get allocated in psram. These structures also contain a spinlock, which needs an atomic-compare-swap operation to work. The psram hardware, however, does not support this operation. As a workaround, this patch detects these spinlocks and will, instead of S32C1I, use equivalent C-code to simulate the behaviour, with an (internal) mux for atomicity.

2018-02-02 17:11:06 +08:00

test

soc: add source code of rtc_clk, rtc_pm

2017-04-11 15:45:54 +08:00

component.mk

Add initial SPI RAM support. This adds support for an ESP-PSRAM32 chip connected to the default flash pins and GPIO 16 and 17. The RAM is mapped to address 0x3F800000, but otherwise ignored by esp-idf as of yet.

2017-09-04 12:05:49 +08:00