printf: Remove nvm access from the ape as it triggers a race condition when the rx cpu is restarted. (#35)

Rather than print directly, the APE now using the host debug console only for printf.
The RX cpu (function 0 only) uses the debug console and forwards it over SPI when new data is available.

1 files changed, 6 insertions, 8 deletions

diff --git a/libs/printf/ape_putchar.c b/libs/printf/ape_putchar.c
index 550222e..ea96a89 100644
--- a/libs/printf/ape_putchar.c
+++ b/libs/printf/ape_putchar.c
@@ -44,26 +44,24 @@
 
 #include <printf.h>
 #include <em100_putchar.h>
-#include <APE_DEBUG.h>
+#include <APE_SHM.h>
 
 void _putchar(char character)
 {
-    uint32_t write_pointer = DEBUG.WritePointer.r32;
+    uint32_t write_pointer = SHM.RcpuWritePointer.r32;
     uint32_t word_pointer = write_pointer / 4;
     uint32_t byte_index = write_pointer % 4;
     uint32_t byte_mask = 0xFF << (byte_index * 8);
 
-    uint32_t new_word = DEBUG.Buffer[word_pointer].r32 & ~byte_mask;
+    uint32_t new_word = SHM.RcpuPrintfBuffer[word_pointer].r32 & ~byte_mask;
     new_word |= character << (byte_index * 8);
-    DEBUG.Buffer[word_pointer].r32 = new_word;
+    SHM.RcpuPrintfBuffer[word_pointer].r32 = new_word;
     write_pointer++;
 
-    if(write_pointer >= sizeof(DEBUG.Buffer))
+    if(write_pointer >= sizeof(SHM.RcpuPrintfBuffer))
     {
         write_pointer = 0;
     }
 
-    DEBUG.WritePointer.r32 = write_pointer;
-
-    em100_putchar(character);
+    SHM.RcpuWritePointer.r32 = write_pointer;
 }