Hi:
on owner board there are a stm32f411 processor and a da14850, the stm32f are used as a external processor . Now i want store some application CODE of DA14850 ,such as SPS,on the internal flash of stm32f, and then DA14850 can bootloader and communciation with the flash of stm32 over spi, how can i do and where can i find the reference?
Keywords:
Hi：
who can help me
Hi Aihuazou, Please refer to:
AN-B-001: Booting from Serial Interfaces and
UM-B-013 : DA14580 External processor interface over SPI for details.
Best regards, RvA
Hi RvA:
业主设计,我初始化了tm32 pins to the function of spi master according the AN-B-001 6.1 SECTION,and downloader the hex file of the "..\DA1458x_SDK_3.0.6\host_apps\da1458x\proximity\reporter\host_proxr", but bootloader the da14580 is failed. I have same question about it :
1、if Ishould modify the value of the first address of the OTP HEADER to 0x0000 because of the following cute coming from the AN-B-001SECTION 3
"DevMode will be entered when the OTP header contains a value zero at the first two addresses,
when read by the CPU. This implies that the OTP is not programmed and the DA1458x should switch
to the DevMode, so that users get access to download code from external devices into the internal
SRAM (SysRAM). "
2、 HOW TO achive the timing sequence of the power_up of the da14580 during the bootloader (AN-B-001 SECTION7 Figure 5 and 6)
3/ on owner design ,the spi of the da14580 is only for download the bootloader code, if the da14580 should be initialized to the spi slave function firstly?