int main(void) { int i; uint8_t buf[515]; pin_setup(); enable_1v8_power(); cpu_clock_init(); /* program test data to SPI flash */ for (i = 0; i < 515; i++) buf[i] = (i * 3) & 0xFF; w25q80bv_setup(); w25q80bv_chip_erase(); w25q80bv_program(790, 515, &buf[0]); /* blink LED1 and LED3 */ while (1) { gpio_set(PORT_LED1_3, (PIN_LED1|PIN_LED3)); /* LEDs on */ for (i = 0; i < 8000000; i++) /* Wait a bit. */ __asm__("nop"); gpio_clear(PORT_LED1_3, (PIN_LED1|PIN_LED3)); /* LED off */ for (i = 0; i < 8000000; i++) /* Wait a bit. */ __asm__("nop"); } return 0; }
usb_request_status_t usb_vendor_request_erase_spiflash( usb_endpoint_t* const endpoint, const usb_transfer_stage_t stage) { if (stage == USB_TRANSFER_STAGE_SETUP) { spi_bus_start(spi_flash.bus, &ssp_config_w25q80bv); w25q80bv_setup(&spi_flash); /* only chip erase is implemented */ w25q80bv_chip_erase(&spi_flash); usb_transfer_schedule_ack(endpoint->in); } return USB_REQUEST_STATUS_OK; }