Problem at this stage "void reg_wizchip_spi_cbfunc"

Question

Hi, I am using the project from Javakys, which can be found here: github.com/javakys/W5500_STM32F4_SPI_DMA I have moved it to use the STM32F2xx MCU and have a small problem as the programm stop at this funktion in the winzip_conf.c source in line 240 while(!(WIZCHIP.if_mode & WIZCHIP_IO_MODE_SPI)); void reg_wizchip_spi_cbfunc(uint8_t (*spi_rb)(void), void (*spi_wb)(uint8_t wb)) { while(!(WIZCHIP.if_mode & _WIZCHIP_IO_MODE_SPI_)); if(!spi_rb || !spi_wb) { WIZCHIP.IF.SPI._read_byte = wizchip_spi_readbyte; WIZCHIP.IF.SPI._write_byte = wizchip_spi_writebyte; } else { WIZCHIP.IF.SPI._read_byte = spi_rb; WIZCHIP.IF.SPI._write_byte = spi_wb; } } If debugging I am getting for WIZCHIP.if_mode = 0 WIZCHIP_IO_MODE_SPI_ =512 spi_rb =-1 spi_wb =-1 Any help on that? Best regards Christian

Christian · Answer

Dear Midnightcow, I have checked the wizchip_conf.h file and all was and is still definded as you mention. #define _WIZCHIP_IO_MODE_ _WIZCHIP_IO_MODE_SPI_VDM_ Any other think that can cause that problem? Christian

Christian · Answer

Dear Midnightcow, you are right I am having a problem with the WIZCHIP structure, just working on it and got a update of my compiler and had some new problems that are solved now. This is how the structure is: typedef struct __WIZCHIP { uint16_t if_mode; ///< host interface mode uint8_t id[6]; ///< @b WIZCHIP ID such as @b 5100, @b 5200, @b 5500, and so on. /** * The set of critical section callback func. */ struct _CRIS { void (*_enter) (void); ///< crtical section enter void (*_exit) (void); ///< critial section exit }CRIS; /** * The set of @ref\_WIZCHIP_ select control callback func. */ struct _CS { void (*_select) (void); ///< @ref \_WIZCHIP_ selected void (*_deselect)(void); ///< @ref \_WIZCHIP_ deselected }CS; /** * The set of interface IO callback func. */ union _IF { /** * For BUS interface IO */ struct { uint8_t (*_read_byte) (uint32_t AddrSel); void (*_write_byte) (uint32_t AddrSel, uint8_t wb); }BUS; /** * For SPI interface IO */ struct { uint8_t (*_read_byte) (void); void (*_write_byte) (uint8_t wb); // void (*_read_burst) (uint8_t* pBuf, uint16_t len); // void (*_write_burst) (uint8_t* pBuf, uint16_t len); }SPI; // To be added // }IF; }_WIZCHIP; And here I am getting in the wizchip_conf.c file this error message: Assigning to non-lvalue WIZCHIP.id = WIZCHIP_ID, _WIZCHIP WIZCHIP = // {_WIZCHIP_IO_MODE_,_WIZCHIP_ID_,wizchip_cris_enter,wizchip_cris_exit,wizchip_cs_select,wizchip_cs_deselect,wizchip_bus_readbyte,wizchip_bus_writebyte}; //#if 0 { WIZCHIP.if_mode = _WIZCHIP_IO_MODE_, WIZCHIP.id = _WIZCHIP_ID_, WIZCHIP.CRIS._enter = wizchip_cris_enter, WIZCHIP.CRIS._exit = wizchip_cris_exit, WIZCHIP.CS._select = wizchip_cs_select, WIZCHIP.CS._deselect = wizchip_cs_deselect, WIZCHIP.IF.BUS._read_byte = wizchip_bus_readbyte, WIZCHIP.IF.BUS._write_byte = wizchip_bus_writebyte //.IF.SPI._read_byte = wizchip_spi_readbyte, //.IF.SPI._write_byte = wizchip_spi_writebyte }; //#endif Thx for the support Christian

Christian · Answer

Problem solved. I change declaration of the “id” variable (wizchip_conf.h file) from 6 to 7: uint8_t id[7]; ///< @b WIZCHIP ID such as @b 5100, @b 5200, @b 5500, and so on.