网站到期请续费,宁波网站建设制作网络公司,上海建网站公司排名,湖南营销型网站建设报价FT2232调试记录 #xff08;1#xff09;获取当前连接的FTDI设备通道个数:#xff08;2#xff09;获取当前连接的设备通道的信息:#xff08;3#xff09;配置SPI的通道:#xff08;4#xff09;如何设置GPIO:#xff08;5#xff09;DEMO测试#xff1a; #参考文档… FT2232调试记录 1获取当前连接的FTDI设备通道个数:2获取当前连接的设备通道的信息:3配置SPI的通道:4如何设置GPIO:5DEMO测试 #参考文档 1包含了FT2xxx和IIC SPI的操作手册。 相关文档:https://ftdichip.com/document/programming-guides/ 2包含了MPSSE和MCU主机总线仿真模式的命令处理器。 AN108Command Processor for MPSSE and MCU Host Bus Emulation Modes. (3)相关博客FT2232H编程流程分析
1获取当前连接的FTDI设备通道个数: status SPI_GetNumChannels((DWORD *)channels);APP_CHECK_STATUS(status);qDebug(Number of available SPI channels %d\n,channels);2获取当前连接的设备通道的信息:
FT2232 有两个通道使用SPI_GetChannelInfo 获取通道信息。 FT_DEVICE_LIST_INFO_NODE devList[2];status SPI_GetChannelInfo(0,devList[0]);APP_CHECK_STATUS(status);printf(Information on channel number %d:\n,0);/* print the dev info */qDebug( Flags0x%x\n,devList[0].Flags);qDebug( Type0x%x\n,devList[0].Type);qDebug( ID0x%x\n,devList[0].ID);qDebug( LocId0x%x\n,devList[0].LocId);qDebug( SerialNumber%s\n,devList[0].SerialNumber);qDebug( Description%s\n,devList[0].Description);qDebug( ftHandle0x%x\n,devList[0].ftHandle);/*is 0 unless open*/status SPI_GetChannelInfo(1,devList[1]);APP_CHECK_STATUS(status);printf(Information on channel number %d:\n,1);/* print the dev info */qDebug( Flags0x%x\n,devList[1].Flags);qDebug( Type0x%x\n,devList[1].Type);qDebug( ID0x%x\n,devList[1].ID);qDebug( LocId0x%x\n,devList[1].LocId);qDebug( SerialNumber%s\n,devList[1].SerialNumber);qDebug( Description%s\n,devList[1].Description);qDebug( ftHandle0x%x\n,devList[1].ftHandle);/*is 0 unless open*/Information on channel number 0:
Flags0x2
Type0x6
ID0x4036010
LocId0x231
SerialNumberA
DescriptionDual RS232-HS A
ftHandle0x0
status ok!
Information on channel number 1:
Flags0x2
Type0x6
ID0x4036010
LocId0x232
SerialNumberB
DescriptionDual RS232-HS B
ftHandle0x03配置SPI的通道:
如下举例为SPI操作通道 A (0):
uint32_t channels;
channelConf.ClockRate 5000;
channelConf.LatencyTimer 255;
channelConf.configOptions SPI_CONFIG_OPTION_MODE0 | SPI_CONFIG_OPTION_CS_DBUS3;
channelConf.Pin 0x00000000;/*FinalVal-FinalDir-InitVal-InitDir (for dir 0in, 1out)*/status SPI_GetNumChannels((DWORD *)channels);
APP_CHECK_STATUS(status);qDebug(Number of available SPI channels %d\n,channels);/* Open the first available channel */
status SPI_OpenChannel(0,ftHandle[0]);
APP_CHECK_STATUS(status);
qDebug(\nhandle0x%x status0x%x\n,ftHandle[0],status);
status SPI_InitChannel(ftHandle[0],channelConf);
APP_CHECK_STATUS(status);********status SPI_CloseChannel(ftHandle[0]); 4如何设置GPIO:
方式一 libmpsse 库中提供的接口FT_WriteGPIO只能支持ACBUS(BCBUS) 即高字节操作。 FT_STATUS FT_WriteGPIO(FT_HANDLE handle, uint8 dir, uint8 value) dir: 0 out 1 in value:0 low 1 high FT_STATUS FT_ReadGPIO(FT_HANDLE handle, uint8 *value) 控制引脚AC3 AC4 BC3 BC4
FT2232H有两个MPSSE通道每个通道带有两个8位端口 即ADBUS和ACBUSBDBUS和BCBUS. 其中 【低字节】 ADBUS(BDBUS)用于同步串行通信I2C/SPI/JTAG 【高字节】 ACBUS(BCBUS)可以免费用作GPIO
初始化时候打开channel: /* Open the first available channel */status SPI_OpenChannel(0,ftHandle[0]);APP_CHECK_STATUS(status);qDebug(\nhandle0x%x status0x%x\n,ftHandle[0],status);status SPI_InitChannel(ftHandle[0],channelConf);APP_CHECK_STATUS(status);// status SPI_CloseChannel(ftHandle[0]);/* Open the first available channel */status SPI_OpenChannel(1,ftHandle[1]);APP_CHECK_STATUS(status);qDebug(\nhandle0x%x status0x%x\n,ftHandle[1],status);status SPI_InitChannel(ftHandle[1],channelConf);APP_CHECK_STATUS(status);// status SPI_CloseChannel(ftHandle[1]);void bsp_ft2232::bsp_ledA(enum typePinA chl, bool highlow)
{
uint8_t val0;
FT_ReadGPIO(ftHandle[0],val);
FT_WriteGPIO(ftHandle[0],gpio_setting[0], ( highlow ? (val|(0x1(chl)) ) : (val(~(0x1(chl))) ) ) );
}void bsp_ft2232::bsp_ledB(enum typePinB chl, bool highlow)
{uint8_t val0;FT_ReadGPIO(ftHandle[1],val);FT_WriteGPIO(ftHandle[1],gpio_setting[1], ( highlow ? (val|(0x1(chl)) ) : (val(~(0x1(chl))) ) ) );
}方式二 使用ftd2xx 库中提供的接口。 调用FT_Write 库。 3.6.1 Set Data bits LowByte 0x80, 0xValue, 0xDirection This will setup the direction of the first 8 lines and force a value on the bits that are set as output. A 1 in the Direction byte will make that bit an output. 3.6.2 Set Data bits High Byte 0x82, 0xValue, 0xDirection This will setup the direction of the high 8 lines and force a value on the bits that are set as output. A 1 in the Direction byte will make that bit an output. 3.6.3 Read Data bits LowByte 0x81, This will read the current state of the first 8 pins and send back 1 byte. 3.6.4 Read Data bits HighByte 0x83, This will read the current state of the high 8 pins and send back 1 byte. void bsp_ft2232::bsp_ledtest(bool highlow)
{if(highlow){dwNumBytesToSend 0; byOutputBuffer[dwNumBytesToSend] 0x82; byOutputBuffer[dwNumBytesToSend] 0xFF; byOutputBuffer[dwNumBytesToSend] 0xFF; status FT_Write(ftHandle[0], byOutputBuffer, dwNumBytesToSend, dwNumBytesSent);qDebug(on %d\r\n,dwNumBytesSent);dwNumBytesSent0;dwNumBytesToSend 0;}else{dwNumBytesToSend 0; byOutputBuffer[dwNumBytesToSend] 0x82; byOutputBuffer[dwNumBytesToSend] 0x00; byOutputBuffer[dwNumBytesToSend] 0xFF; status FT_Write(ftHandle[0], byOutputBuffer, dwNumBytesToSend, dwNumBytesSent);qDebug(off %d\r\n,dwNumBytesSent);dwNumBytesSent0;dwNumBytesToSend 0;}
}5DEMO测试
