triffid / lpc17xx-dfu-bootloader Goto Github PK

Hello Triffid !

Thank you for your great work. I would like to know if there it's some documentation.
I saw trough code that bootloader can be loaded trough USB. Could you please provide some more details for a Windows user ?

Kind REgards,
Daniel

I have an early Smoothieboard v1.0 (the one with A498x drivers) so I am not totally sure if it has a different pinout.

This code always fails on my board:

	SDCard_init(P0_9, P0_8, P0_7, P0_6);
	if (SDCard_disk_initialize() == 0)
		check_sd_firmware();

SDCard_disk_initialize() finally goes here:

int SDCard_initialise_card() {
    // Set to 25kHz for initialisation, and clock card with cs = 1
    SPI_frequency(25000);
    GPIO_set(_cs);

    for(int i=0; i<16; i++) {
        SPI_write(0xFF);
    }

    // send CMD0, should return with all zeros except IDLE STATE set (bit 0)
    if(SDCard__cmd(SDCMD_GO_IDLE_STATE, 0) != R1_IDLE_STATE) {
        fprintf(stderr, "Could not put SD card in to SPI idle state\n");
        return cardtype = SDCARD_FAIL;
    }
...

and fails with "Could not put SD card in to SPI idle state".

But this works with the bootloader packaged with Smoothieware (it worked before and it works now).
Which version is this?
The Smoothieware documentation simply links to this github repo without any tag or branch, so I assume it should actually still work.

I also guessed it could be some older version, so I tried several versions like

• current master
• current develop
• tags 0.1, 0.2, 0.3, 0.4
• the first populated version that can compile

I also tried to change some values that might have an influence on this code:

• code derived from 0.1 and 0.2 by mixing in some later changes that seemed to make sense
• master and develop with 24 x SPI_write(0xFF) instead (like I found somewhere in the code)
• master and develop with different frequencies for SPI like 10000 (slower) or 100000 (older value)

Googling for the error message indicates the pins could be wrong, but it works with the version packed with Smoothieware and I think the pins never changed...

Any guess what else could be going on?

Hello,

I'm trying to get the output from this bootloader on my usb-to-serial terminal.

I've connected up pin 0.2 og 0.3 (same pins as utilized when flashing the bootloader), however I'm uncertain which baudrate is required to listen to the bootloader.

Clearly it's determined by the APPBAUD makefile variable, but this does not seem to be the baudrate directly? - It's just seems to be a parameter to a search for suitable hardware parameters, that I'm unable to decrypt.

Any help would be appriciated!

Hello sir,

Code for firmware update through sd card is perfectly running as expected.
I have using the same code for LPC1768.
ISSUES:
1.The printf function is not able to send debug messages to the console. I have done doing some changes using UART_SEND function. But still no debugs messages. Using UART0 for debugging.
2. The system is hanging (in boot code) while device is powered up. After the manually reset, the device starts working.

Look forward to hear from you.