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Add esp/wdt_regs.h

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This commit is contained in:
Alex Stewart 2015-08-19 16:48:11 -07:00
parent 4fa66ca391
commit 177ad281aa
2 changed files with 40 additions and 12 deletions
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14
core/include/esp/registers.h
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@ -19,11 +19,9 @@
#include "esp/iomux_regs.h"
#include "esp/gpio_regs.h"
#include "esp/timer_regs.h"
#include "esp/wdt_regs.h"
#include "esp/dport_regs.h"
/* Internal macro, only defined in header body */
#define _REG(BASE, OFFSET) (*(esp_reg_t)((BASE)+(OFFSET)))
/* Register base addresses
You shouldn't need to use these directly.
@ -38,19 +36,11 @@
//#define TIMER_BASE (MMIO_BASE + 0x0600)
#define RTC_BASE (MMIO_BASE + 0x0700)
//#define IOMUX_BASE (MMIO_BASE + 0x0800)
#define WDT_BASE (MMIO_BASE + 0x0900)
//#define WDT_BASE (MMIO_BASE + 0x0900)
#define I2C_BASE (MMIO_BASE + 0x0d00)
#define UART1_BASE (MMIO_BASE + 0x0F00)
#define RTCB_BASE (MMIO_BASE + 0x1000)
#define RTCS_BASE (MMIO_BASE + 0x1100)
#define RTCU_BASE (MMIO_BASE + 0x1200)
/* WDT register(s)
Not fully understood yet. Writing 0 here disables wdt.
See ROM functions esp_wdt_xxx
*/
#define WDT_CTRL _REG(WDT_BASE, 0x00)
#endif

38
core/include/esp/wdt_regs.h Normal file
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@ -0,0 +1,38 @@
/* esp/wdt_regs.h
*
* ESP8266 Watchdog Timer register definitions
*
* Not compatible with ESP SDK register access code.
*/
#ifndef _ESP_WDT_REGS_H
#define _ESP_WDT_REGS_H
#include "esp/types.h"
#include "common_macros.h"
#define WDT_BASE 0x60000900
#define WDT (*(struct WDT_REGS *)(WDT_BASE))
/* WDT register(s)
Not fully understood yet. Writing 0 to CTRL disables WDT.
See ROM functions esp_wdt_xxx
*/
struct WDT_REGS {
uint32_t volatile CTRL; // 0x00
uint32_t volatile REG1; // 0x04
uint32_t volatile REG2; // 0x08
uint32_t volatile _unused[2]; // 0x0c - 0x10
uint32_t volatile FEED; // 0x14
} __attribute__ (( packed ));
_Static_assert(sizeof(struct WDT_REGS) == 0x18, "WDT_REGS is the wrong size");
/* Writing WDT_FEED_MAGIC to WDT.FEED register "feeds the dog" and holds off
* triggering for another cycle (unconfirmed) */
#define WDT_FEED_MAGIC 0x73
#endif /* _ESP_WDT_REGS_H */