Start working on ECP5 support

README.md

@@ -189,6 +189,8 @@ First, add a UDEV rule so that the device can be accessed by anyone:
 sudo cp 99-iceflasher.rules /etc/udev/rules.d/
 ```
 
+Then, set up the python environment and test that the device can be loaded:
+
 ```
 cd python_example
 python3 -m venv .venv

docker/Makefile

@@ -27,7 +27,7 @@ docker-image:
 ${TARGET}:
 	docker ${COMMON} \
 		-it ${DOCKER_IMAGE_NAME} \
-        /usr/bin/bash -c "mkdir -p build; cd build; cmake ../; make -j12"
+        /usr/bin/bash -c "mkdir -p build; cd build; cmake ../ -DPICO_BOARD=pico2; make -j12"
 
 build: ${TARGET}
 
@@ -51,7 +51,7 @@ flash: ${TARGET}
 			-f interface/cmsis-dap.cfg \
 			-f target/rp2350.cfg \
 			-c "adapter speed 5000" \
-			-c "program main.elf verify ; reset ; exit"
+			-c "program build/main.elf verify ; reset ; exit"
 
 # This should work without --net=host ?
 debug-server:
@@ -75,14 +75,3 @@ debug-client:
 		/usr//bin/gdb-multiarch \
 		--se=main.elf \
 		-ex "target extended-remote localhost:3333"
-
-#		--se=arm-bootrom.elf \
-
-debug-client2:
-	docker ${COMMON} \
-		--mount type=bind,source=`pwd`/../pico-bootrom-rp2350,target=/home/graham/dev/amy/amy-bootrom/ \
-		--net=host \
-		-it ${DOCKER_IMAGE_NAME} \
-		/usr//bin/gdb-multiarch \
-		--se=arm-bootrom.elf \
-		-ex "target extended-remote localhost:3334"

python_example/ecp5.py

@@ -0,0 +1,22 @@
+import ice_flasher
+
+flasher = ice_flasher.IceFlasher()
+
+pins = {
+        'sck':10,
+        'mosi':11,
+        'cs':12,
+        'miso':13,
+        }
+
+flasher.spi_configure(pins['sck'], pins['cs'], pins['mosi'],pins['miso'], 1)
+flasher.gpio_set_direction(pins['cs'], True)
+flasher.gpio_put(pins['cs'], True)
+
+cmd = bytearray(8)
+cmd[0] = 0b11100000  # read_id
+
+# From ECP5 and ECP5-5G sysCONFIG User Guide, Table B.5. ECP5 and ECP5-5G Device ID:
+# IDCODE for LFE5U-85 should be 0x41113043
+ret = flasher.spi_rxtx(cmd)
+print(ret)

src/main.c

@@ -372,6 +372,7 @@ bool tud_vendor_control_xfer_cb(uint8_t rhport, uint8_t stage, tusb_control_requ
                          out_buffer[2], // mosi
                          out_buffer[3]  // miso
             );
+	    // TODO: Configure CS Pin?
             spi.cs_pin = out_buffer[1]; // cs
 
             return true;