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99fc12ca
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前往新版Gitcode,体验更适合开发者的 AI 搜索 >>
提交
99fc12ca
编写于
4月 05, 2023
作者:
H
HUST_lxq
提交者:
mysterywolf
4月 06, 2023
浏览文件
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电子邮件补丁
差异文件
[bsp] Fix the potential problem caused by the uninitialized variable dividor
上级
2720c9c3
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
9 addition
and
8 deletion
+9
-8
bsp/CME_M7/StdPeriph_Driver/src/cmem7_i2c.c
bsp/CME_M7/StdPeriph_Driver/src/cmem7_i2c.c
+9
-8
未找到文件。
bsp/CME_M7/StdPeriph_Driver/src/cmem7_i2c.c
浏览文件 @
99fc12ca
...
...
@@ -43,6 +43,7 @@ typedef struct {
static
uint32_t
i2c_GetClock
(
I2C0_Type
*
I2Cx
)
{
uint32_t
dividor
;
assert_param
(
IS_I2C_ALL_PERIPH
(
I2Cx
));
if
((
uint32_t
)
I2Cx
==
(
uint32_t
)
I2C0
)
{
dividor
=
GLOBAL_CTRL
->
CLK_SEL_0_b
.
I2C0_CLK
;
...
...
@@ -54,7 +55,7 @@ static uint32_t i2c_GetClock(I2C0_Type* I2Cx) {
}
static
uint16_t
i2c_NormalizeAddr
(
I2C0_Type
*
I2Cx
,
uint16_t
addr
)
{
assert_param
(
IS_I2C_ALL_PERIPH
(
I2Cx
));
assert_param
(
IS_I2C_ALL_PERIPH
(
I2Cx
));
if
(
I2Cx
->
CTRL_b
.
MODE
==
I2C_Mode_Master
)
{
if
(
I2Cx
->
CTRL_b
.
MASTER_ADDR_WIDTH
==
I2C_ADDR_WIDTH_7BIT
)
{
...
...
@@ -97,12 +98,12 @@ void I2C_Init(I2C0_Type* I2Cx, I2C_InitTypeDef* I2C_Init) {
I2Cx
->
CTRL_b
.
MODE
=
I2C_Init
->
I2C_Mode
;
if
(
I2Cx
->
CTRL_b
.
MODE
==
I2C_Mode_Master
)
{
I2Cx
->
CTRL_b
.
MASTER_ADDR_WIDTH
=
I2C_Init
->
I2C_AddressWidth
;
I2Cx
->
CTRL_b
.
MASTER_ADDR_WIDTH
=
I2C_Init
->
I2C_AddressWidth
;
I2Cx
->
TAR_b
.
START_BYTE
=
TRUE
;
I2Cx
->
TAR_b
.
ADDR10
=
i2c_NormalizeAddr
(
I2Cx
,
I2C_Init
->
I2C_Address
);
}
if
(
I2Cx
->
CTRL_b
.
MODE
==
I2C_Mode_Slave
)
{
I2Cx
->
CTRL_b
.
SLAVE_ADDR_WIDTH
=
I2C_Init
->
I2C_AddressWidth
;
I2Cx
->
CTRL_b
.
SLAVE_ADDR_WIDTH
=
I2C_Init
->
I2C_AddressWidth
;
I2Cx
->
SAR_b
.
ADDR10
=
i2c_NormalizeAddr
(
I2Cx
,
I2C_Init
->
I2C_Address
);
}
...
...
@@ -116,13 +117,13 @@ void I2C_Init(I2C0_Type* I2Cx, I2C_InitTypeDef* I2C_Init) {
i2c_GetClock
(
I2Cx
)
/
I2C_Init
->
timing
->
I2C_Freq
/
2
;
I2Cx
->
SCL_CNT_b
.
LOW_LEVEL_TICK
=
i2c_GetClock
(
I2Cx
)
/
I2C_Init
->
timing
->
I2C_Freq
/
2
;
I2Cx
->
SDA_SETUP_b
.
TSU_DAT
=
((
uint64_t
)
I2C_Init
->
timing
->
I2C_TsuDat
)
*
I2Cx
->
SDA_SETUP_b
.
TSU_DAT
=
((
uint64_t
)
I2C_Init
->
timing
->
I2C_TsuDat
)
*
i2c_GetClock
(
I2Cx
)
/
1000000000
;
I2Cx
->
SDA_SETUP_b
.
TSETUP
=
((
uint64_t
)
I2C_Init
->
timing
->
I2C_Tsetup
)
*
i2c_GetClock
(
I2Cx
)
/
1000000000
;
I2Cx
->
TSU_STA_SETUP_b
.
TBUF
=
((
uint64_t
)
I2C_Init
->
timing
->
I2C_Tbuf
)
*
i2c_GetClock
(
I2Cx
)
/
1000000000
;
I2Cx
->
TSU_STA_SETUP_b
.
TSU_STA
=
((
uint64_t
)
I2C_Init
->
timing
->
I2C_TsuSta
)
*
I2Cx
->
TSU_STA_SETUP_b
.
TSU_STA
=
((
uint64_t
)
I2C_Init
->
timing
->
I2C_TsuSta
)
*
i2c_GetClock
(
I2Cx
)
/
1000000000
;
I2Cx
->
TSU_STA_SETUP_b
.
SDA_FILTER_EN
=
I2C_Init
->
timing
->
I2C_SdaFilterEn
;
I2Cx
->
TSU_STA_SETUP_b
.
SDA_FILTER_CNT
=
I2C_Init
->
timing
->
I2C_SdaFilterSpike
;
...
...
@@ -134,14 +135,14 @@ void I2C_Init(I2C0_Type* I2Cx, I2C_InitTypeDef* I2C_Init) {
void
I2C_Enable
(
I2C0_Type
*
I2Cx
,
BOOL
enable
)
{
assert_param
(
IS_I2C_ALL_PERIPH
(
I2Cx
));
I2Cx
->
ENABLE_b
.
EN
=
enable
;
I2Cx
->
ENABLE_b
.
EN
=
enable
;
}
void
I2C_EnableInt
(
I2C0_Type
*
I2Cx
,
uint32_t
Int
,
BOOL
enable
)
{
assert_param
(
IS_I2C_ALL_PERIPH
(
I2Cx
));
assert_param
(
IS_I2C_ALL_PERIPH
(
I2Cx
));
assert_param
(
IS_I2C_INT
(
Int
));
if
(
enable
)
{
if
(
enable
)
{
I2Cx
->
INT_MASK
&=
~
Int
;
}
else
{
I2Cx
->
INT_MASK
|=
Int
;
...
...
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