Rak5010 Flash Memory and Storage

Cellular Boards RAK5010
1

Issue:

Setup:

Details: I just had a question regarding the storage in the flash memory. I wanted to know how can I access, read and write from the flash memory after wake up from sleep. I also wanted to how how this read and writing mapping mechanism works in the flash memory.

2

Hi，

In rui.h, you can find these two API. It allows to write and read 128 bytes in flash. Use RUI_FLASH_USER mode.
/***************************************************************************************

  • @brief This API is flash write and read.
  • @return RUI_RETURN_STATUS
  • @param uint8_t *str
    uint8_t len: should less than 128 byte
    RUI_FLASH_MODE mode: user data or origin data
    ***************************************************************************************/
    RUI_RETURN_STATUS rui_flash_write(RUI_FLASH_MODE mode, uint8_t *str, uint8_t len);

/***************************************************************************************

  • @brief This API is auto send data timeout callback by lora.
  • @return RUI_RETURN_STATUS
  • @param uint8_t *str
    uint8_t len: should less than 128 byte
    RUI_FLASH_MODE mode: user data or origin data
    ***************************************************************************************/
    RUI_RETURN_STATUS rui_flash_read(RUI_FLASH_MODE mode,uint8_t *str, uint8_t len);
3

Hey @nero going more on that. Lets say I have a send_data variable whose value I first save/write in the flash memory, sleep, wakeup and then read the value of the send_data from the flash memory again; then how do I that exactly go about doing that and also is there a specific keyword that I need to write next to it that marks it as a flash variable or something.

4

Hi，
The buffer of user data is completely for user. So You can decide the format of your data. The only thing to worry about is the size of the buffer.

5

Thank you so much. I really appreciate your help.

6

Hey @nero, actually for the tasks that I was doing, I want to be able to write more data to the flash however for rui_flash_write command only allows 128 bytes to be written to the flash and I know that the board has a Mega Byte of flash memory so I was wondering if you could tell me how do I write more than 128 bytes to the flash.