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fix wm8753 sound issue. 

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@25 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
bernard.xiong 2009-08-24 22:57:39 +00:00
parent 3e58b1940f
commit 26021f5889
1 changed files with 3 additions and 3 deletions
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6
bsp/stm32_radio/wm8753.c
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@ -174,7 +174,7 @@ static void I2S_Configuration(void)
I2S_InitTypeDef I2S_InitStructure; I2S_InitTypeDef I2S_InitStructure;
/* I2S peripheral configuration */ /* I2S peripheral configuration */
I2S_InitStructure.I2S_Standard = I2S_Standard_LSB; I2S_InitStructure.I2S_Standard = I2S_Standard_Phillips;
I2S_InitStructure.I2S_DataFormat = I2S_DataFormat_16b; I2S_InitStructure.I2S_DataFormat = I2S_DataFormat_16b;
I2S_InitStructure.I2S_MCLKOutput = I2S_MCLKOutput_Disable; I2S_InitStructure.I2S_MCLKOutput = I2S_MCLKOutput_Disable;
I2S_InitStructure.I2S_AudioFreq = I2S_AudioFreq_44k; I2S_InitStructure.I2S_AudioFreq = I2S_AudioFreq_44k;
@ -346,7 +346,7 @@ static rt_size_t wm8753_write (rt_device_t dev, rt_off_t pos, const void* buffer
node->data_ptr = (rt_uint16_t*)buffer; node->data_ptr = (rt_uint16_t*)buffer;
node->data_size = size >> 1; /* size is byte unit, convert to half word unit */ node->data_size = size >> 1; /* size is byte unit, convert to half word unit */
// #if 0 #if 0
{ {
/* sound patch */ /* sound patch */
rt_uint32_t index; rt_uint32_t index;
@ -355,7 +355,7 @@ static rt_size_t wm8753_write (rt_device_t dev, rt_off_t pos, const void* buffer
((rt_int16_t*)(node->data_ptr))[index] = (rt_int16_t)(node->data_ptr[index] + 0x8000); ((rt_int16_t*)(node->data_ptr))[index] = (rt_int16_t)(node->data_ptr[index] + 0x8000);
} }
} }
// #endif #endif
next_index = device->read_index + 1; next_index = device->read_index + 1;
if (next_index >= DATA_NODE_MAX) next_index = 0; if (next_index >= DATA_NODE_MAX) next_index = 0;