Reroute stderr to uart and color it red

stm-firmware/calibration.c

@@ -159,7 +159,7 @@ int calibration_sequence_shell_cmd(shellmatta_handle_t shell)
 
 	/* Check noise values */
 	if (dev > CALIBRATION_MAX_PEAK_PEAK_NOISE_OHM || dev2 > CALIBRATION_MAX_PEAK_PEAK_NOISE_OHM) {
-		shellmatta_printf(shell, "Calibration failed! Too much noise. Check you're hardware.\r\n");
+		shellmatta_printf(shell, "Calibration failed! Too much noise. Check your hardware.\r\n");
 		return -3;
 	}
 

stm-firmware/shell.c

@@ -24,6 +24,7 @@
 #include <reflow-controller/adc-meas.h>
 #include <reflow-controller/digio.h>
 #include <stdlib.h>
+#include <malloc.h>
 #include <helper-macros/helper-macros.h>
 #include <reflow-controller/systick.h>
 #include <stm-periph/unique-id.h>
@@ -200,12 +201,13 @@ static shellmatta_retCode_t shell_cmd_cal(const shellmatta_handle_t   handle,
 	return SHELLMATTA_OK;
 }
 
-static shellmatta_retCode_t shell_get_sp(const shellmatta_handle_t   handle,
+static shellmatta_retCode_t shell_meminfo(const shellmatta_handle_t   handle,
 					 const char                  *arguments,
 					 uint32_t length)
 {
 	(void)arguments;
 	(void)length;
+	struct mallinfo mi;
 
 	shellmatta_printf(handle,
 			  "Stack pointer: %p\r\n"
@@ -214,6 +216,15 @@ static shellmatta_retCode_t shell_get_sp(const shellmatta_handle_t   handle,
 			  read_stack_pointer(),
 			  stack_check_get_usage(),
 			  stack_check_get_free());
+
+	mi = mallinfo();
+	shellmatta_printf(handle, "\r\nDynamic Memory Management\r\n");
+	shellmatta_printf(handle, "Allocated bytes: %d\r\n", mi.arena, mi.arena);
+	shellmatta_printf(handle, "Number of free chunks: %d\r\n", mi.ordblks);
+	shellmatta_printf(handle, "Top-most, releasable space: %d\r\n", mi.keepcost);
+	shellmatta_printf(handle, "Total free space: %d\r\n", mi.fordblks);
+	shellmatta_printf(handle, "Total allocated space: %d\r\n", mi.uordblks);
+
 	return SHELLMATTA_OK;
 }
 
@@ -352,11 +363,11 @@ static shellmatta_cmd_t cmd[10] = {
 		.next = &cmd[8],
 	},
 	{
-		.cmd = "get-stack-pointer",
-		.cmdAlias = "sp",
-		.helpText = "Get the stack pointer",
+		.cmd = "meminfo",
+		.cmdAlias = NULL,
+		.helpText = "Get information about memory usage",
 		.usageText = "",
-		.cmdFct = shell_get_sp,
+		.cmdFct = shell_meminfo,
 		.next = &cmd[9],
 	},
 	{

stm-firmware/syscalls.c

@@ -89,6 +89,12 @@ int _write(int fd, const void *buf, int count)
 {
 	if (fd == 1)
 		uart_send_array_with_dma(&shell_uart, (char *)buf, count);
+	else if (fd == 2) {
+		uart_send_string_with_dma(&shell_uart, "\e[31m");
+		uart_send_array_with_dma(&shell_uart, (char *)buf, count);
+		uart_send_string_with_dma(&shell_uart, "\e[m");
+	}
+
 	return count;
 }