Pico-sdk studies

Device_tree_from_scratch   ::   Spi_device_tree_source_code   ::   Pico-sdk_studies

2022-08-15 Pico SDK Studies

ted@localhost:~/reference/pico-sdk$ grep -nr unreset_block_wait ./*
./src/rp2_common/hardware_resets/include/hardware/resets.h:88:static inline void unreset_block_wait(uint32_t bits) {
./src/rp2_common/hardware_uart/uart.c:34:    unreset_block_wait(uart_get_index(uart) ? RESETS_RESET_UART1_BITS : RESETS_RESET_UART0_BITS);
./src/rp2_common/pico_runtime/runtime.c:80:    unreset_block_wait(RESETS_RESET_BITS & ~(
./src/rp2_common/pico_runtime/runtime.c:110:    unreset_block_wait(RESETS_RESET_BITS);
./src/rp2_common/hardware_pll/pll.c:54:    unreset_block_wait(pll_reset);
./src/rp2_common/hardware_i2c/i2c.c:25:    unreset_block_wait(i2c == i2c0 ? RESETS_RESET_I2C0_BITS : RESETS_RESET_I2C1_BITS);
Binary file ./src/rp2_common/hardware_spi/.spi.c.swp matches
./src/rp2_common/hardware_spi/spi.c:18:    unreset_block_wait(spi == spi0 ? RESETS_RESET_SPI0_BITS : RESETS_RESET_SPI1_BITS);
./src/rp2_common/hardware_rtc/rtc.c:29:    unreset_block_wait(RESETS_RESET_RTC_BITS);
./src/rp2_common/hardware_adc/adc.c:14:    unreset_block_wait(RESETS_RESET_ADC_BITS);
./test/hardware_pwm_test/hardware_pwm_test.c:36:    unreset_block_wait(RESETS_RESET_PWM_BITS);

ted@localhost:~/reference/pico-sdk$

DMA driver details

Search for . . .

ted@localhost:~/projects/zephyr-based/workspace-rpi-pico-work/pico-sdk$ grep -nr NUM_DMA_CHANNELS ./*
./src/host/pico_platform/include/hardware/platform_defs.h:12:#define NUM_DMA_CHANNELS 12u
. . .
./src/rp2040/hardware_structs/include/hardware/structs/dma.h:106:    dma_channel_hw_t ch[NUM_DMA_CHANNELS]; // 12
./src/rp2040/hardware_structs/include/hardware/structs/dma.h:194:    } ch[NUM_DMA_CHANNELS];