# RP2040 uctype definitions for MicroPython # See https://iosoft.blog/pico-adc-dma for description # # Copyright (c) 2021 Jeremy P Bentham # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # from uctypes import BF_POS, BF_LEN, UINT32, BFUINT32, struct GPIO_BASE = 0x40014000 GPIO_CHAN_WIDTH = 0x08 GPIO_PIN_COUNT = 30 PAD_BASE = 0x4001c000 PAD_PIN_WIDTH = 0x04 ADC_BASE = 0x4004c000 DMA_BASE = 0x50000000 DMA_CHAN_WIDTH = 0x40 DMA_CHAN_COUNT = 12 # DMA: RP2040 datasheet 2.5.7 DMA_CTRL_TRIG_FIELDS = { "AHB_ERROR": 31<