Firmware: add test suite

src/tests/xmodem.c

@@ -0,0 +1,37 @@
+#include <arm/NXP/LPC17xx/LPC17xx.h>
+#include "config.h"
+#include "timer.h"
+#include "uart.h"
+#include "ff.h"
+#include "xmodem.h"
+
+void xmodem_rxfile(FIL* fil) {
+  uint8_t rxbuf[XMODEM_BLKSIZE], sum=0, sender_sum;
+  uint8_t blknum, blknum2;
+  uint8_t count;
+  uint32_t totalbytes = 0;
+  uint32_t totalwritten = 0;
+  UINT written;
+  FRESULT res;
+  uart_flush();
+  do {
+    delay_ms(3000);
+    uart_putc(ASC_NAK);
+  } while (uart_getc() != ASC_SOH);
+  do {
+    blknum=uart_getc();
+    blknum2=uart_getc();
+    for(count=0; count<XMODEM_BLKSIZE; count++) {
+      sum += rxbuf[count] = uart_getc();
+      totalbytes++;
+    }
+    sender_sum = uart_getc();
+    res=f_write(fil, rxbuf, XMODEM_BLKSIZE, &written);
+    totalwritten += written;
+    uart_putc(ASC_ACK);
+  } while (uart_getc() != ASC_EOT);
+  uart_putc(ASC_ACK);
+  uart_flush();
+  sleep_ms(1000);
+  printf("received %ld bytes, wrote %ld bytes. last res = %d\n", totalbytes, totalwritten, res);
+}