Encrypted bootloader example does not work with stdio over USB

[eliasbakken]

The bootloader/encrypted example works as expected when compiling it as is, data is transferred via uart. But when stdio is enabled for USB, there is only output when the enc_bootloader is run, not the final program.

Adding pico_enable_stdio_usb(hello_serial_enc 1) to the CMakeLists.txt does not render any output via USB.

[lurch]

ping @will-v-pi

[will-v-pi]

This should be fixed when using picotool 2.1.0 (which is used by SDK 2.1.0) - see #558 and raspberrypi/picotool#150

Could you try this with SDK & picotool 2.1.0 and see if you still have this issue?

[eliasbakken]

Thank you for the suggestion. I did try it, but I do not see any change on the output of the USB.

[eliasbakken]

Version of picotool:
picotool v2.1.0 (Linux, GNU-12.2.0, Release)
and the ld file:

        *(.eh_frame*)
        . = ALIGN(8);
    } > RAM

    .rodata : {
        *(.rodata*)
        *(.srodata*)

[eliasbakken]

It looks as though interrupts are not working when running from SRAM.
The following program will not fire when loaded with the decoding bootloader, but will fire if run from flash directly.

#include <stdio.h>
#include "pico/stdlib.h"

void gpio_callback(uint gpio, uint32_t events) {
    printf("GPIO %d\n", gpio);
}

int main() {
    stdio_uart_init();
    gpio_init(2);
    gpio_set_dir(2, GPIO_IN);
    gpio_set_irq_enabled_with_callback(2, GPIO_IRQ_EDGE_RISE | GPIO_IRQ_EDGE_FALL, true, &gpio_callback);

    while(true);
}