MP3播放异常请求协助

发布于 2016-09-20 17:04:45 浏览：3701 订阅该版

板子是老板子  v2.0的，用的代码是google上的 名称：stm32radio_svn66_v4.7z
歌曲：随便网上下的6首mp3 128kbps速率 
情况：只有一首可以播放，播放10s后死掉
其他5首一放就进入hard fault on thread: ply_bg

board.h配置如下：
```/* board configuration */
// <o> SDCard Driver <1=>SDIO sdcard <0=>SPI MMC card
// 	Default: 1
#define STM32_USE_SDIO 0

/* whether use board external SRAM memory */
// <e>Use external SRAM memory on the board
// 	Enable External SRAM memory
#define STM32_EXT_SRAM 1
//	<o>Begin Address of External SRAM
//		Default: 0x68000000
#define STM32_EXT_SRAM_BEGIN 0x68000000 /* the begining address of external SRAM */
//	<o>End Address of External SRAM
//		Default: 0x68080000
#define STM32_EXT_SRAM_END 0x68080000 /* the end address of external SRAM */
// </e>

// <o> Internal SRAM memory size[Kbytes] <8-64>
//	Default: 64
#define STM32_SRAM_SIZE 64
#define STM32_SRAM_END (0x20000000 + STM32_SRAM_SIZE * 1024)

// <o> Console on USART: <0=> no console <1=>USART 1 <2=>USART 2 <3=> USART 3
// 	Default: 1
#define STM32_CONSOLE_USART 1

// <o> LCD Module Version
// <1=>Version 1: fmt0371
// <2=>Version 2: i8080/16bit ili9320/9325/9328 LG4531 ST7783
// <3=>Version 3: i8080/16bit SSD1289
// 	Default: 1
#define LCD_VERSION 1

// <o> LCD backlight:
// <0=>NO
// <1=>PB9 TIM4_CH4 ( Version: V0.* V3.0 V3.1 )
// <2=>PB6 TIM4_CH1 ( Version: V4 )
// 	Default: 1
#define LCD_USE_PWM 0

/*
 * IMPORTANT NOTICE:
 * CODEC_MASTER_MODE = 1 with CODEC_USE_SPI3 = 0 is unusable due to a hardware bug of STM32's SPI2.
 */
// <o> CODEC Mode
// <0=>I2S Slave
// <1=>I2S Master
#define CODEC_MASTER_MODE	0

// <o> CODEC SPI Port
// <0=>SPI2
// <1=>SPI3
#define CODEC_USE_SPI3		0

// <o> SPI FLASH TYPE
// <1=>Version 1: AT45DB161D
// <2=>Version 2: SST25VF016B
// 	Default: 2
#define SPI_FLASH_TYPE 1```

==================================================================

开机后打印信息如下：
```  | /
- RT -     Thread Operating System
 / |  0.4.0 build Sep 20 2016
 2006 - 2009 Copyright by rt-thread team
found part[0], begin: 70144, size: 1.851GB
SPI File System initialized!
SD File System initialized!
Unable to open GBK to Unicode look up table.
Unable to open Unicode to GBK look up table.

LCD GRAM test....  TEST PASS!

rem_codes /resource/remote.txt open fail! fd:-1
The remote disbale.
please run rem_study()
rtc is not configured
please configure with set_date and set_time
Thu Jan  1 00:00:00 1970

dm9000 id: 0x90000a46
finsh>>could not establish link```
============================================================
发现在mp3.c 里面死掉的
修改了以下打印代码：
```		/* write to sound device */
		outputSamps = decoder->frame_info.outputSamps;
		if (outputSamps > 0)
		{
			int ii;
			if (decoder->frame_info.nChans == 1)
			{
				int i;
				for (i = outputSamps - 1; i >= 0; i--)
				{
					buffer[i * 2] = buffer*;
					buffer[i * 2 + 1] = buffer*;
				}
				outputSamps *= 2;
				rt_kprintf("debug 4.5.
");
			}
			rt_kprintf("debug 5.
");
			ii=rt_device_write(decoder->snd_device, 0, buffer, outputSamps * sizeof(rt_uint16_t));
			if(ii==0)
				rt_kprintf("debug 5.5.
");
		}```
==================================================================
具体死掉的时候打印信息如下：
```debug 5.
debug 5.
debug 5.
psr: 0x81000000
 pc: 0x0801ae3a
 lr: 0x0801ae2d
r12: 0x0000000a
r03: 0x000cf72d
r02: 0xfffea0fd
r01: 0xfffcc24c
r00: 0x000026ab
hard fault on thread: ply_bg
 thread  pri  status      sp     stack size max used   left tick  error
-------- ---- ------- ---------- ---------- ---------- ---------- ---
tcpip    0x0a suspend 0x000000c8 0x00000400 0x000001c0 0x00000014 000
etx      0x0c suspend 0x00000088 0x00000200 0x00000088 0x00000010 000
erx      0x0c suspend 0x00000088 0x00000200 0x00000088 0x00000010 000
key      0x1e suspend 0x00000090 0x00000180 0x00000098 0x00000005 000
ply_ui   0x19 suspend 0x000000d0 0x00001000 0x00000570 0x00000001 000
ply_bg   0x0d ready   0x00000120 0x00000800 0x00000468 0x00000001 000
info     0x19 suspend 0x000000d0 0x00000800 0x00000490 0x00000004 000
rtgui    0x0f suspend 0x000000e0 0x00000400 0x000000e0 0x00000004 000
tidle    0x1f ready   0x00000040 0x00000100 0x00000050 0x00000013 000
tshell   0x14 suspend 0x00000088 0x00000800 0x00000088 0x0000000a 000
init     0x08 suspend 0x000000a0 0x00000800 0x00000438 0x00000006 000```

怀疑是标红的代码处出问题？不确定 请求协助

最后的目标是想用这个板子播放flac wav 等无损 任重道远啊