Posted on January 11, 2016 at 22:32
Hi Folks,
it might be that CLIVE made his demo- prog for another kind of stm32F407 eval board than the one I tried to use for evaluating the code. To use CLIVES’ example code together with the STM32F407 discovery board (version C) and a e.g. the KEIL eval compiler some changes are required:
For proper SDIO detection intead of PH13 e.g. PD2 can be used - the other PINS need to be manually connected with the SD_CARD slot.
To make sure the SDcard is detected properly a test routine might be usefull:
if(SD_Detect() == SD_PRESENT) {
STM_EVAL_LEDOn(LED4);
} else STM_EVAL_LEDOn(LED5);
To make the USB Interface work some changes of the low level initialization are required:
#ifdef USE_USB_OTG_FS
Lprint(''USE_USB_OTG_FS\0'');
RCC_AHB1PeriphClockCmd( RCC_AHB1Periph_GPIOA , ENABLE);
/* Configure SOF ID DM DP Pins
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 |
GPIO_Pin_11 |
GPIO_Pin_12;
*/
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10 |
GPIO_Pin_11 |
GPIO_Pin_12;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; //100 MHz
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;
GPIO_Init(GPIOA, &GPIO_InitStructure);
//GPIO_PinAFConfig(GPIOA,GPIO_PinSource8,GPIO_AF_OTG1_FS) ;
GPIO_PinAFConfig(GPIOA,GPIO_PinSource10,GPIO_AF_OTG1_FS) ;
GPIO_PinAFConfig(GPIOA,GPIO_PinSource11,GPIO_AF_OTG1_FS) ;
GPIO_PinAFConfig(GPIOA,GPIO_PinSource12,GPIO_AF_OTG1_FS) ;
//PA9 VBUS_FS ; PA10 OTG-FS- ID; PA11 PM and PA12 ID
/* Configure VBUS Pin */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
GPIO_InitStructure.GPIO_OType = GPIO_OType_OD;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;
GPIO_Init(GPIOA, &GPIO_InitStructure);
/* Configure ID pin */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_OType = GPIO_OType_OD;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP ;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz; // 100MHz
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_PinAFConfig(GPIOA,GPIO_PinSource10,GPIO_AF_OTG1_FS) ;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
RCC_AHB2PeriphClockCmd(RCC_AHB2Periph_OTG_FS, ENABLE) ;
Since the STM32F407 version C board has a quartz included the following predefines will do a god job:
STM32F40_41xxx, HSE_VALUE=8000000,USE_STM32F4_DISCOVERY,USE_STDPERIPH_DRIVER, USE_USB_OTG_FS,USB_OTG_FS_CORE
Hope this helps and thankyou CLIVE for charing your code with us.
