Merge pull request #28 from adafruit/support-program-rp2350

support programming rp2350

Author: hathach

examples/Brain/brain_test/brain_test.ino

@@ -1,7 +1,7 @@
 // Testing basic peripherals on Brain
 
 // required for Host MSC block device
-#include "SdFat.h"
+#include "SdFat_Adafruit_Fork.h"
 
 // required for USB host
 #include "pio_usb.h"

examples/Brain/program_esp_cdc/program_esp_cdc.ino

@@ -9,7 +9,7 @@
 //   - There is no need to connect IO0/Reset since we will use DTR/RTS to reset ESP32
 
 // required for Host MSC block device
-#include "SdFat.h"
+#include "SdFat_Adafruit_Fork.h"
 
 // required for USB host
 #include "pio_usb.h"

examples/Brain/program_esp_uart/program_esp_uart.ino

@@ -6,7 +6,7 @@
 // - Brain TX/RX  <-> ESP32 RX/TX
 
 // required for Host MSC block device
-#include "SdFat.h"
+#include "SdFat_Adafruit_Fork.h"
 
 // required for USB host
 #include "pio_usb.h"

examples/Brain/program_nrf52840/program_nrf52840.ino

@@ -6,7 +6,7 @@
 // - Brain's USB host to Target USB
 
 // required for Host MSC block device
-#include "SdFat.h"
+#include "SdFat_Adafruit_Fork.h"
 
 // required for USB host
 #include "pio_usb.h"

examples/Brain/program_nrf52840_from_sdcard/program_nrf52840_from_sdcard.ino

@@ -6,7 +6,7 @@
 // - Brain's USB host to Target USB
 
 // required for Host MSC block device
-#include "SdFat.h"
+#include "SdFat_Adafruit_Fork.h"
 
 // required for USB host
 #include "pio_usb.h"

examples/Brain/program_rp2/.pico_rp2040_tinyusb.test.only

@@ -0,0 +1,135 @@
+// This sketch program rp2040 by copying UF2 file from SDCard to
+// rp2040 bootrom
+// Hardware wiring:
+// - Brain's Target GPIO28 to RP2 bootsel
+// - Brain's Target Reset to RP2 Reset
+// - Brain's USB host to RP2040 USB interface
+
+// required for Host MSC block device
+#include "SdFat_Adafruit_Fork.h"
+
+// required for USB host
+#include "pio_usb.h"
+#include "Adafruit_TinyUSB.h"
+
+#include "Adafruit_TestBed_Brains.h"
+
+// firmware.h is converted using tools/file2carray.py e.g
+//   python tools/file2carray.py cdc_msc.uf2
+// above command will generate cdc_msc.uf2.h with bindata, bindata_len
+#include "metro_rp2350_cdc_msc.uf2.h"
+
+// RP2040 Boot VID/PID
+#define BOOT_VID   0x2e8a
+#define BOOT_PID_RP2040   0x0003
+#define BOOT_PID_RP2350   0x000f
+
+// If USB filesystem is mounted
+volatile bool is_usbfs_mounted = false;
+
+//--------------------------------------------------------------------+
+// Setup and Loop on Core0
+//--------------------------------------------------------------------+
+void print_speed(size_t count, uint32_t ms) {
+  Brain.LCD_printf(0, "%.01fKB %.01fs", count/1000.0F, ms / 1000.0F);
+
+  Serial.printf("Completed %u bytes in %.02f seconds.\r\n", count, ms / 1000.0F);
+  Serial.printf("Speed : %.02f KB/s\r\n", (count / 1000.0F) / (ms / 1000.0F));
+}
+
+void setup() {
+  Serial.begin(115200);
+  while (!Serial) delay(10);
+  Serial.println("Program RP2 by copy UF2 from Internal Flash to Bootloader!");
+
+  // sync: wait for Brain.begin() called in core1 before accessing SD or other peripherals
+  while (!Brain.inited()) delay(10);
+
+  // wait for USB filesystem is mounted. USB host bit-banging and task is
+  // processed on core1
+  while (!is_usbfs_mounted) delay(10);
+
+  // Copy UF2 file
+  Brain.LCD_printf(0, "Copying firmware");
+  Serial.println("Copying UF2 from Flash to USBHFS");
+
+  uint32_t ms = millis();
+  size_t copied_bytes = Brain.rp2_programUF2(bindata, bindata_len);
+  print_speed(copied_bytes, millis() - ms);
+
+  // wait for rp2040 boot rom to reset
+  // while (is_usbfs_mounted) delay(10);
+}
+
+void loop() {
+  Serial.flush();
+}
+
+//--------------------------------------------------------------------+
+// Setup and Loop on Core1
+//--------------------------------------------------------------------+
+
+// call usbh_begin() here to make pio usb background task run on core1
+// NOTE: Brain.begin() should be called here as well to prevent race condition
+void setup1() {
+  Brain.begin();
+  Brain.usbh_begin();
+
+  Brain.LCD_printf(1, "No USB Device");
+
+  // reset rp2040 target into Boot Rom, default bootsel = 28, reset duration = 10 ms
+  Brain.rp2_targetResetBootRom();
+}
+
+// core1's loop: process usb host task on core1
+void loop1() {
+  Brain.USBHost.task();
+}
+
+//--------------------------------------------------------------------+
+// TinyUSB Host callbacks
+// Note: running in the same core where Brain.USBHost.task() is called
+//--------------------------------------------------------------------+
+bool is_rp2_bootloader(uint16_t vid, uint16_t pid) {
+  return (vid == BOOT_VID && (pid == BOOT_PID_RP2040 || pid == BOOT_PID_RP2350));
+}
+
+extern "C"  {
+
+// Invoked when device is mounted (configured)
+void tuh_mount_cb(uint8_t dev_addr) {
+  uint16_t vid, pid;
+  tuh_vid_pid_get(dev_addr, &vid, &pid);
+
+  if (!is_rp2_bootloader(vid, pid)) {
+    Brain.LCD_printf(1, "UnkDev %04x:%04x", vid, pid);
+  }
+}
+
+/// Invoked when device is unmounted (bus reset/unplugged)
+void tuh_umount_cb(uint8_t dev_addr) {
+  (void)dev_addr;
+  Brain.LCD_printf(1, "No USB Device");
+}
+
+// Invoked when a device with MassStorage interface is mounted
+void tuh_msc_mount_cb(uint8_t dev_addr) {
+  uint16_t vid, pid;
+  tuh_vid_pid_get(dev_addr, &vid, &pid);
+
+  if (is_rp2_bootloader(vid, pid)) {
+    is_usbfs_mounted = Brain.usbh_mountFS(dev_addr);
+    if (is_usbfs_mounted) {
+      uint16_t rp2variant = (pid == BOOT_PID_RP2040 ? 2040 : 2350);
+      Brain.LCD_printf(1, "RP%u Bootldr", rp2variant);
+    }
+  }
+}
+
+// Invoked when a device with MassStorage interface is unmounted
+void tuh_msc_umount_cb(uint8_t dev_addr) {
+  is_usbfs_mounted = false;
+  Brain.usbh_umountFS(dev_addr);
+}
+
+}