ardupilot/Tools/AP_Bootloader/custom.cpp

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/*
custom code for specific boards
*/
#include <AP_HAL/AP_HAL.h>
#include "ch.h"
#include "hal.h"
#include "support.h"
#ifdef AP_BOOTLOADER_CUSTOM_HERE4
/*
reset here4 LEDs
*/
static void bootloader_custom_Here4(void)
{
for (uint8_t n=0; n<10; n++) {
const uint8_t num_leds = 4;
const uint32_t min_bits = num_leds*25+50;
const uint8_t num_leading_zeros = 8-min_bits%8 + 50;
const uint32_t output_stream_byte_length = (min_bits+7)/8;
palSetLineMode(HAL_GPIO_PIN_LED_DI, PAL_MODE_OUTPUT_PUSHPULL);
palSetLineMode(HAL_GPIO_PIN_LED_SCK, PAL_MODE_OUTPUT_PUSHPULL);
int l = 100;
while (l--) {
for (uint32_t i=0; i<output_stream_byte_length; i++) {
for (uint8_t bit = 0; bit < 8; bit++) {
uint32_t out_bit_idx = i*8+bit;
uint8_t bit_val;
if (out_bit_idx < num_leading_zeros) {
bit_val = 0;
} else if ((out_bit_idx-num_leading_zeros) % 25 == 0) {
bit_val = 1;
} else {
bit_val = 0;
}
palClearLine(HAL_GPIO_PIN_LED_SCK);
palWriteLine(HAL_GPIO_PIN_LED_DI, bit_val);
palSetLine(HAL_GPIO_PIN_LED_SCK);
}
}
}
chThdSleepMilliseconds(10);
}
}
#endif // AP_BOOTLOADER_CUSTOM_HERE4
void custom_startup(void)
{
#ifdef AP_BOOTLOADER_CUSTOM_HERE4
bootloader_custom_Here4();
#endif
}