STM32F407 FSMC bus access with CubeMX code generationi

gordon239955 · ‎2014-04-29

Posted on April 30, 2014 at 04:45

hi,

I have a custom designed board with STM32F07 IC. The FSMC interface is working with certain version of software. recently i tried to use CubeMX to generate low-level code with FSMC HAL. I only added a few lines of code to test FSMC interface.

/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* Configure the system clock */
SystemClock_Config();
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_ETH_Init();
MX_FSMC_Init();
MX_I2C1_Init();
MX_UART5_Init();
MX_USART6_UART_Init();
/* USER CODE BEGIN 2 */
fsmc_addr = 0x60000000;
HAL_SRAM_Read_16b(&hsram1, &fsmc_addr, fsmc_rd, 1);

i have logical analyzer connected to the FSMC bus. the problem is that i don't see NE1 signal asserted and any activity on the bus when the last function is stepped through. can you give me some advise on this? thanks. Best regards Gordon

stm32cube-t · ‎2014-05-09

Posted on May 09, 2014 at 15:53

Hello,

the code snippet you provide is not sufficient to understand the problem.

Can you provide STM32CubeMX project configuration file (.ioc) and the user code you added.

Thank you.

derun_a · ‎2014-07-11

Posted on July 11, 2014 at 11:24

Hello,

I have almost the same problem.

I am trying to work with FSMC, my code is the same as above. I didn't add any more user code. I have the SRAM which is connected to NE1. I can't see any activity on the lines OE,WE, NE1. Could some one help me please. There is my *.ioc file in the attachment.

________________

Attachments :

new_board_tst_can_eth_usb_cube.ioc : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006HyOy&d=%2Fa%2F0X0000000bLU%2FJ2Bg7b5COrYQrEqUxGVNUOLurMzXWxhS_qG5qT9yt.k&asPdf=false

stm32cube-t · ‎2014-07-21

Posted on July 21, 2014 at 17:46

There has been some updates in MX generated code. Can you please confirm you reproduce your issue by:

1/ creating a new project from scratch using STM32CubeMX 4.3 and configuring the peripherals for your use case

2/ test again the generated code.

Thanks.

derun_a · ‎2014-07-25

Posted on July 25, 2014 at 13:59

I have successfully got access to the memory using another kind of transfer addresses in function parameters.

fsmc_addr = 0x60000000;

HAL_SRAM_Read_16b(&hsram1, (uint32_t *)fsmc_addr, fsmc_rd, 1);