updating sd_card_example

lab_0/sd_card_example/CMakeLists.txt

@@ -15,7 +15,7 @@ endif()
 cmake_minimum_required(VERSION 3.13)
 
 set(PICO_BOARD pico_w CACHE STRING "Board type")
-set(PROGRAM_NAME imu_data_logger)
+set(PROGRAM_NAME sd_card_example)
 
 include(pico_sdk_import.cmake)
 
@@ -59,17 +59,30 @@ set_property(TARGET ${PROGRAM_NAME} APPEND_STRING PROPERTY LINK_FLAGS
 )
 
 pico_set_program_name(${PROGRAM_NAME} "${PROGRAM_NAME}")
-pico_set_program_version(${PROGRAM_NAME} "3.3.1")
+pico_set_program_version(${PROGRAM_NAME} "0.1")
 
+pico_enable_stdio_uart(${PROGRAM_NAME} 0)
 pico_enable_stdio_usb(${PROGRAM_NAME} 1)
 
 target_include_directories(${PROGRAM_NAME} PUBLIC 
         include/ 
 )
 target_link_libraries(${PROGRAM_NAME}
+    pico_stdlib
+    hardware_i2c
+    pico_multicore
+    pico_util
     sd_custom_driver
     hardware_clocks
     hardware_adc
+    hardware_pio
+)
+
+# Add the standard include files to the build
+target_include_directories(${PROGRAM_NAME} PRIVATE
+        ${CMAKE_CURRENT_LIST_DIR}
 )
 
 pico_add_extra_outputs(${PROGRAM_NAME})
+
+

lab_0/sd_card_example/main.cpp

 #include <stdio.h>
 #include <string.h>
 #include "pico/stdlib.h"
+#include "pico/multicore.h"
+
 #include "ff.h"
 #include "sd_card.h"
 #include "f_util.h"
@@ -167,9 +169,8 @@ static FRESULT check_and_list_files(const char *root_drive) {
 }
 
 // ------------------------------ Main -------------------------------------
-int main(void) {
-    stdio_init_all();
-    sleep_ms(1500);
+
+void core1_entry() {
 
     // 1) Init + mount
     if (!sd_init_and_mount()) {
@@ -178,7 +179,7 @@ int main(void) {
 
     // Build absolute file path: <drive>/test.txt
     char path[PATH_MAX_LEN];
-    join_path(path, sizeof path, g_drive, "test1.txt");
+    join_path(path, sizeof path, g_drive, "test3.txt");
 
     // 2) Create the file
     FIL f;
@@ -186,7 +187,7 @@ int main(void) {
     if (fr != FR_OK) die(fr, "f_open(create)");
 
     // 3) Write data
-    const char *msg = "data writing test!\n";
+    const char *msg = "data blahblah test!\n";
     UINT bw = 0;
     fr = write_to_file(&f, msg, (UINT)strlen(msg), &bw);
     if (fr != FR_OK || bw != strlen(msg)) die(fr, "f_write/f_sync");
@@ -203,5 +204,15 @@ int main(void) {
     fr = f_unmount(g_drive);
     printf("f_unmount -> %s (%d)\n", FRESULT_str(fr), fr);
 
+    while (1) { tight_loop_contents(); }
+}
+
+
+int main(void) {
+
+    stdio_init_all();
+    sleep_ms(3000);
+
+    multicore_launch_core1(core1_entry);
     while (1) { sleep_ms(1000); }
 }