errata_SSWF021_45.c File Reference

This source file contains errata SSWF021#45 workaround implementation. More...

#include <bsp/ti_herc/errata_SSWF021_45.h>
#include <bsp/tms570.h>

Macros
#define	SYS_CLKSRC_PLL1   0x00000002U
#define	SYS_CLKSRC_PLL2   0x00000040U
#define	SYS_CLKCNTRL_PENA   0x00000100U
#define	ESM_SR1_PLL1SLIP   0x400U
#define	ESM_SR4_PLL2SLIP   0x400U
#define	PLL1   0x08
#define	PLL2   0x80
#define	dcc1CNT1_CLKSRC_PLL1   0x0000A000U
#define	dcc1CNT1_CLKSRC_PLL2   0x0000A001U

Functions
uint32_t	_errata_SSWF021_45_both_plls (uint32_t count)
	This handles the errata for PLL1 and PLL2. This function is called in device startup.
uint32_t	_errata_SSWF021_45_pll1 (uint32_t count)
	This handles the errata for PLL1. This function is called in device startup.
uint32_t	_errata_SSWF021_45_pll2 (uint32_t count)
	This handles the errata for PLL2. This function is called in device startup.

Detailed Description

This source file contains errata SSWF021#45 workaround implementation.

Function Documentation

_errata_SSWF021_45_both_plls()

uint32_t _errata_SSWF021_45_both_plls

(

uint32_t

count

)

This handles the errata for PLL1 and PLL2. This function is called in device startup.

Parameters

[in]

count

: Number of retries until both PLLs are locked successfully Minimum value recommended is 5

Returns

0 = Success (the PLL or both PLLs have successfully locked and then been disabled) 1 = PLL1 failed to successfully lock in "count" tries 2 = PLL2 failed to successfully lock in "count" tries 3 = Neither PLL1 nor PLL2 successfully locked in "count" tries 4 = The workaround function was not able to disable at least one of the PLLs. The most likely reason is that a PLL is already being used as a clock source. This can be caused by the workaround function being called from the wrong place in the code.

_errata_SSWF021_45_pll1()

uint32_t _errata_SSWF021_45_pll1

(

uint32_t

count

)

This handles the errata for PLL1. This function is called in device startup.

Parameters

[in]

count

: Number of retries until both PLL1 is locked successfully Minimum value recommended is 5

Returns

0 = Success (the PLL or both PLLs have successfully locked and then been disabled) 1 = PLL1 failed to successfully lock in "count" tries 2 = PLL2 failed to successfully lock in "count" tries 3 = Neither PLL1 nor PLL2 successfully locked in "count" tries 4 = The workaround function was not able to disable at least one of the PLLs. The most likely reason is that a PLL is already being used as a clock source. This can be caused by the workaround function being called from the wrong place in the code.

_errata_SSWF021_45_pll2()

uint32_t _errata_SSWF021_45_pll2

(

uint32_t

count

)

This handles the errata for PLL2. This function is called in device startup.

Parameters

[in]

count

: Number of retries until PLL2 is locked successfully Minimum value recommended is 5

Returns

0 = Success (the PLL or both PLLs have successfully locked and then been disabled) 1 = PLL1 failed to successfully lock in "count" tries 2 = PLL2 failed to successfully lock in "count" tries 3 = Neither PLL1 nor PLL2 successfully locked in "count" tries 4 = The workaround function was not able to disable at least one of the PLLs. The most likely reason is that a PLL is already being used as a clock source. This can be caused by the workaround function being called from the wrong place in the code.