/* Set STM32 to 64 MHz. */
void clock_setup(void)
{
rcc_clock_setup_hsi(&hsi_8mhz[CLOCK_64MHZ]);
/* Enable GPIOE clock. */
rcc_peripheral_enable_clock(&RCC_AHBENR, RCC_AHBENR_IOPEEN);
}
int main() {
rcc_clock_setup_hsi(&hsi_8mhz[CLOCK_48MHZ]);
rcc_usb_prescale_1();
rcc_peripheral_reset(&RCC_APB1RSTR, RCC_APB1RSTR_USBRST);
rcc_peripheral_reset(&RCC_AHBRSTR, RCC_AHBRSTR_IOPARST);
rcc_peripheral_clear_reset(&RCC_APB1RSTR, RCC_APB1RSTR_USBRST);
rcc_peripheral_clear_reset(&RCC_AHBRSTR, RCC_AHBRSTR_IOPARST);
rcc_peripheral_enable_clock(&RCC_APB1ENR, RCC_APB1ENR_USBEN);
rcc_peripheral_enable_clock(&RCC_AHBENR, RCC_AHBENR_IOPAEN);
gpio_mode_setup(GPIOA, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO11 | GPIO12);
gpio_clear(GPIOA, GPIO11 | GPIO12);
for (int i = 0; i < 0x800000; i++)
__asm__ volatile("nop");
gpio_mode_setup(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO11 | GPIO12);
gpio_set_af(GPIOA, GPIO_AF14, GPIO11| GPIO12);
arm_bootloader::Dest dest = arm_bootloader::get_unique_dest();
char serial[10] = {0};
{
uint32_t x = dest;
char hex[] = "0123456789abcdef";
for(int i = 0; i < 8; i++) {
serial[7-i] = hex[x & 0xF];
x = x >> 4;
}
}
/* Buffer to be used for control requests. */
uint8_t usbd_control_buffer[128];
char const *usb_strings[] = {
"uf-mil",
"subbus",
serial,
};
usbd_device * usbd_dev = usbd_init(&stm32f103_usb_driver, &uf_subbus_protocol::usb::dev, &uf_subbus_protocol::usb::config, usb_strings, 3, usbd_control_buffer, sizeof(usbd_control_buffer));
usbd_register_set_config_callback(usbd_dev, cdcacm_set_config);
uf_subbus_protocol::usb::Sink sink(usbd_dev);
arm_bootloader::Handler handler(
sink,
dest,
2048);
handlerp = &handler;
while (1)
usbd_poll(usbd_dev);
}
static void clock_setup(void)
{
rcc_clock_setup_hsi(&hsi_8mhz[CLOCK_64MHZ]);
}
void clock_setup(void) {
//rcc_clock_setup_hsi(&hsi_8mhz[CLOCK_44MHZ]);
rcc_clock_setup_hsi(&hsi_8mhz[CLOCK_64MHZ]);
}
void cdcacm_target_init(void)
{
rcc_clock_setup_hsi(&rcc_hsi_8mhz[RCC_CLOCK_48MHZ]);
usb_setup();
}
