How to add spis example in Secure DFU ble example

RE: How to add spis example in Secure DFU ble example

Vidar Berg — Thu, 30 Sep 2021 13:42:57 GMT

Have you tried to see if it works if you also reset the stm? I wonder if the CS line might being asserted by the stm while the nRF reboots.

Also, were you able to debug the bootloader like I suggested?

RE: How to add spis example in Secure DFU ble example

Akshay19 — Thu, 30 Sep 2021 13:40:08 GMT

no from stm im giving reset to nrf dfu.but when i put dfu code in nrf52840 dk and pressed the boot/reset pin that is not triggering a reset to nrf in dk also..whether we need to add something in nrf dfu code

RE: How to add spis example in Secure DFU ble example

Vidar Berg — Thu, 30 Sep 2021 13:07:58 GMT

OK, it's hard to say what's just wrong based on the information given. Can you attach the debugger after the reset and check if the SPIS buffer is being set? Also, does the reset button also reset the stm?

RE: How to add spis example in Secure DFU ble example

Akshay19 — Thu, 30 Sep 2021 08:02:15 GMT

Go again to DFU mode

RE: How to add spis example in Secure DFU ble example

Akshay19 — Thu, 30 Sep 2021 08:01:15 GMT

DFU

RE: How to add spis example in Secure DFU ble example

Vidar Berg — Thu, 30 Sep 2021 07:28:56 GMT

What happens when you press the reset button, does it exit DFU mode and go back to running the main application?

RE: How to add spis example in Secure DFU ble example

Akshay19 — Thu, 30 Sep 2021 03:44:17 GMT

i have added this NRF_POWER->TASKS_CONSTLAT = 1; in my code

RE: How to add spis example in Secure DFU ble example

Akshay19 — Thu, 30 Sep 2021 02:26:33 GMT

Hi spis is now working in dfu mode and mac id also I'm able to send to master.but when I press the reset button in dfu mode then spis is not working I'm getting 0xff,0xff,...etc in master.

Pls help

RE: How to add spis example in Secure DFU ble example

Vidar Berg — Tue, 21 Sep 2021 10:59:25 GMT

This call must be made after the Softdevice has been enabled by nrf_bootloader.c::nrf_dfu_init(). I also recommend you validate the return code:

uint32_t err_code = sd_ble_gap_addr_get(&ble_addr);

APP_ERROR_CHECK(err_code) // invoke error handler if err_code != NRF_SUCCESS

RE: How to add spis example in Secure DFU ble example

Akshay19 — Tue, 21 Sep 2021 10:01:04 GMT

if (dfu_enter)
{

nrf_bootloader_wdt_init();
scheduler_init();
//dfu_enter_flags_clear();
gpio_init();
ble_gap_addr_t mac_addr;
sd_ble_gap_addr_get(&mac_addr);
tx_buf[0]=0x11;
tx_buf[1]=0x22;
tx_buf[2]=mac_addr.addr[0];
tx_buf[3]=mac_addr.addr[1];
tx_buf[4]=mac_addr.addr[2];
tx_buf[5]=mac_addr.addr[3];
tx_buf[6]=mac_addr.addr[4];
tx_buf[7]=mac_addr.addr[5];
tx_buf[8]=0x44;
tx_buf[9]=0x55;
spi_Init();

RE: How to add spis example in Secure DFU ble example

Akshay19 — Tue, 21 Sep 2021 09:44:15 GMT

mac id is F7:FB:53:21:22:34

RE: How to add spis example in Secure DFU ble example

Akshay19 — Tue, 21 Sep 2021 09:40:56 GMT

yes it is working now but i want to transfer mac id of nrf to stm. Im using the lines of code to do that

ble_gap_addr_t ble_addr;
sd_ble_gap_addr_get(&ble_addr);

but when i call that im only getting 2,3,0,0,0,0,

as mac id

i call the before and after spi int

but result is same

1. where should we call this code to get the correct mac id

RE: How to add spis example in Secure DFU ble example

Vidar Berg — Mon, 20 Sep 2021 10:03:25 GMT

Hello,

Are you already enabling the constant latency power mode like in the SPIS example? This mode makes the SPIS wakeup shorter so you don't have to assert the CSN line as early.

int main(void)
{
    // Enable the constant latency sub power mode to minimize the time it takes
    // for the SPIS peripheral to become active after the CSN line is asserted
    // (when the CPU is in sleep mode).
    NRF_POWER->TASKS_CONSTLAT = 1;
    ...

Note: the SPIS should be unitialized and the sub-power mode should be set to low power before booting the main app.

Best regards,

Vidar