[feat] add dma_sniff demo

component/printf/vsnprintf.c

@@ -631,7 +631,7 @@ static size_t print_exponential_number(out_fct_type out, char* buffer, size_t id
 
   int exp10;
   bool abs_exp10_covered_by_powers_table;
-  struct scaling_factor normalization;
+  struct scaling_factor normalization = {0.0, 0};
 
 
   // Determine the decimal exponent

example/peripherals/dma/dma_sniff/CMakeLists.txt

@@ -0,0 +1,9 @@
+cmake_minimum_required(VERSION 3.10)
+
+include(proj.conf)
+
+project(${EXAMPLE_NAME} VERSION 0.1)
+add_executable(${EXAMPLE_NAME}.elf main.c)
+
+add_subdirectory(${SDK_BASE_DIR} sdk)
+target_link_libraries(${EXAMPLE_NAME}.elf sdk)

example/peripherals/dma/dma_sniff/Makefile

@@ -0,0 +1,18 @@
+EXAMPLE_BASE_DIR ?= $(shell realpath .)
+EXAMPLE_NAME := $(notdir $(patsubst %/,%,$(CURDIR)))
+SDK_BASE_DIR ?= $(shell realpath ./../../../..)
+
+export SDK_BASE_DIR
+export EXAMPLE_NAME
+export EXAMPLE_BASE_DIR
+
+GCC_PATH := $(shell which arm-none-eabi-gcc)
+CROSS_COMPILE := $(patsubst %gcc,%,$(GCC_PATH))
+ifeq ($(GCC_PATH),)
+$(error arm-none-eabi-gcc not found in PATH. Please install the ARM toolchain.)
+endif
+
+# add custom cmake definition
+#cmake_definition+=-Dxxx=sss
+
+include $(SDK_BASE_DIR)/project.build

example/peripherals/dma/dma_sniff/main.c

@@ -0,0 +1,85 @@
+#include "reset.h"
+#include "dma.h"
+#include "gpio.h"
+#include "uart.h"
+#include "RP2040.h"
+#include "stdio.h"
+
+uint8_t dma_buffer_raw[] = { 0x55, 0xD5, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE };
+uint8_t dma_buffer_calc[20];
+struct dma_cfg_s dma_cfg = {
+    .read_addr = (uint32_t)dma_buffer_raw,
+    .write_addr = (uint32_t)dma_buffer_calc,
+    .trans_count = sizeof(dma_buffer_raw) / 4,
+    .channel = DMA_CHANNEL_0,
+    .request = DMA_REQ_FOREVER,
+    .data_size = DMA_DATA_SIZE_32BIT,
+    .incr_read = ENABLE,
+    .incr_write = ENABLE,
+    .irq_quiet = DISABLE,
+    .byte_swap = DISABLE,
+    .chain_to = DMA_CHANNEL_0,
+    .high_priority = DISABLE,
+    .ring_sel_write = DISABLE,
+    .ring_size = DMA_RING_SIZE_NONE,
+    .sniff_en = ENABLE,
+};
+struct dma_sniff_cfg_s sniff_cfg = {
+    .channel = DMA_CHANNEL_0,
+    .calc = DMA_SNIFF_CALC_CRC32_BITREV,
+    .byte_swap = DISABLE,
+    .out_rev = ENABLE,
+    .out_inv = ENABLE,
+};
+
+struct uart_cfg_s uart_cfg = {
+    .baudrate = 6 * 1000 * 1000,
+    .mode = UART_MODE_TX_RX,
+    .data_bits = UART_DATABITS_8,
+    .parity = UART_PARITY_NONE,
+    .stop_bits = UART_STOPBITS_1,
+    .fifo_enable = ENABLE,
+    .tx_fifo_level = UART_FIFO_LEVEL_1_2,
+    .rx_fifo_level = UART_FIFO_LEVEL_1_2,
+};
+
+int main(void)
+{
+    uint32_t sniff_result;
+
+    reset_enable(RESET_DMA);
+    reset_disable(RESET_DMA);
+    gpio_init_simple(0, GPIO_FUNC_UART, DISABLE, ENABLE);
+    uart_init(UART_ID_0, &uart_cfg);
+
+    for (int i = 0; i < sizeof(dma_buffer_calc); i++) {
+        dma_buffer_calc[i] = 0;
+    }
+
+    dma_int_clear_raw_status(1 << DMA_CHANNEL_0);
+    dma_init(&dma_cfg);
+    dma_sniff_init(&sniff_cfg);
+    dma_sniff_write(0xA3123859);
+    dma_sniff_enable();
+    dma_enable_and_trig(dma_cfg.channel);
+    while (!(dma_int_get_raw_status() & (1 << dma_cfg.channel)));
+    for (int i = 0; i < sizeof(dma_buffer_raw); i++) {
+        if (dma_buffer_raw[i] != dma_buffer_calc[i]) {
+            printf("error, [%d] 0x%02X -> 0x%02X\r\n", i, dma_buffer_raw[i], dma_buffer_calc[i]);
+        }
+    }
+    sniff_result = dma_sniff_read();
+    if (sniff_result != 0xB0364FEA) {
+        printf("CRC32 check error, result = 0x%08lX, expert = 0x%08X\r\n", sniff_result, 0xB0364FEA);
+    } else {
+        printf("CRC32 check succeed, result = 0x%08lX\r\n", sniff_result);
+    }
+
+    __enable_irq();
+
+    while (1) {
+
+    }
+
+    return 0;
+}

example/peripherals/dma/dma_sniff/proj.conf

@@ -0,0 +1 @@
+# set(CONFIG_COMPONENT1 1)

example/peripherals/gpio/gpio_led/main.c

@@ -1,11 +1,10 @@
-#include "system.h"
 #include "reset.h"
 #include "clock.h"
 #include "sio.h"
 #include "gpio.h"
 #include "uart.h"
 #include "stdio.h"
-#include "cmsis_gcc.h"
+#include "RP2040.h"
 
 struct gpio_cfg_s gpio_led_cfg = {
     .pin = 25,

project.build

@@ -9,6 +9,7 @@ CFLAGS += -O2
 CFLAGS += -Wall
 CFLAGS += -ffunction-sections
 CFLAGS += -fdata-sections
+CFLAGS += -Wpointer-arith
 
 LDFLAGS += -mcpu=cortex-m0plus
 LDFLAGS += -mthumb
@@ -52,6 +53,7 @@ build:Makefile
 	$(MAKE) -C build -j
 	$(CROSS_COMPILE)objcopy -O binary $(EXAMPLE_BASE_DIR)/build/$(EXAMPLE_NAME).elf $(EXAMPLE_BASE_DIR)/build/$(EXAMPLE_NAME).bin
 	$(CROSS_COMPILE)objdump -d -S $(EXAMPLE_BASE_DIR)/build/$(EXAMPLE_NAME).elf > $(EXAMPLE_BASE_DIR)/build/$(EXAMPLE_NAME).asm
+	size $(EXAMPLE_BASE_DIR)/build/$(EXAMPLE_NAME).elf
 
 clean::
 	$(RM) build