S130/SDK12.1 BLE bootloader related

RE: S130/SDK12.1 BLE bootloader related

bjorn-spockeli — Thu, 08 Dec 2016 13:50:38 GMT

Hi Air, I will try to find the cause of your issue in this post. I suggest that we close this post and move the activity to the linked post.

RE: S130/SDK12.1 BLE bootloader related

air — Wed, 07 Dec 2016 02:05:18 GMT

I can provide my code if possible. I wasted about 1 week. Sure I'ts my job.

RE: S130/SDK12.1 BLE bootloader related

air — Wed, 07 Dec 2016 01:49:23 GMT

When I use buttonless_dfu and bootloader_secure including SD130, does bootloader_secure run(not buttonless_dfu)? If so, how can I modify to run buttonless_dfu(not bootloader)?

Finally, I want

my application run
bootloader enter(using buttonless_dfu main function - Already I merged) after some key input (This key is in my board.)
I upload my new F/W using bootloader_secure.

RE: S130/SDK12.1 BLE bootloader related

air — Wed, 07 Dec 2016 00:41:05 GMT

Hello,

Nordic is the 1st time. So, there are many things I don’t know. I experienced bootloader in different MCU without difficulty. Sure, there were the exact information including example source code and process explanation. But, I can’t find out the exact Nordic bootloader process. There are few explanation about buttonless_dfu and bootloader_secure process. I think bootloader is the basic util. So, I think it’s wrong to lose time in development. I’m sorry if you feel bad. I want to get more exact information.

Thanks.

RE: S130/SDK12.1 BLE bootloader related

bjorn-spockeli — Tue, 06 Dec 2016 09:47:06 GMT

Q1: Yes, that should be possible. Just keep in mind that the minimum RAM required by the S130 SoftDevice is 0x13C8 bytes, so you're left with 0x2C38 bytes for the application AND the call stack. Q2: If you're using a key input to put the device in bootloader mode, then you can disregards my previous answer. Were you asking how you should create a firmware packet with nrfutil? I see that you have posted a new question regarding this. If this is the case then I suggest that you mark this question as answered by clicking the checkmark in the circle to the left of my answer.

RE: S130/SDK12.1 BLE bootloader related

air — Tue, 06 Dec 2016 07:57:54 GMT

For above problem I tried to write value - 1 to address - 0x3FC00 using nrfjprog --memwr 0x3FC00 --val 1. But I got a error message - ERROR : The area to write is not erased.

RE: S130/SDK12.1 BLE bootloader related

air — Tue, 06 Dec 2016 01:04:54 GMT

Additionally, my code is like below. startDfu() is the same as buttoness example main().

int main(void)

{

uint32_t err_code;

UART_TX_HIGH;
lfclk_config();								// clock init
nrf_delay_ms(5);

twi_master_init();							// eeprom init
TWI_400K;										// twi frequency

// dfu check
if(checkDfu())
	goto DFU;

. . .

while (1)
{
  . . .
}

DFU:

startDfu();

}

RE: S130/SDK12.1 BLE bootloader related

air — Tue, 06 Dec 2016 00:56:46 GMT

Do you think it’s possible to use S130(SDK 12.x) bootloader (in SDK 12.x) in nRF51822(16KB ram)? Sure, I don't know the exact ram use in my application. But I think the use is under 8KB.
If you're using the buttonless example then you have to write 0x01 to the DFU Control Point characteristic in order to put the device in bootloader mode. -> I understand. But how can I do this? I don’t know. My application enters into buttonless Dfu main function after special key input and soft reset. I don't use any Ble function before entering into buttonless Dfu main function.

RE: S130/SDK12.1 BLE bootloader related

bjorn-spockeli — Mon, 05 Dec 2016 10:04:36 GMT

Hi Air,

Set the bootloader IRAM1 section to be identical to that of the application.
If you're using the buttonless example then you have to write 0x01 to the DFU Control Point characteristic in order to put the device in bootloader mode, see this page for more information.
If you're looking for information on the Secure bootloader then I suggest that you take a look at this page on our Infocenter.

Best regards

Bjørn