X-Git-Url: https://hackdaworld.org/gitweb/?a=blobdiff_plain;f=betty%2Ffwflash.c;h=85a64fa8e95458097e129742d509fcfeca1d8e3c;hb=d7ff99dcff9f0f615da9f491b7b7d2c1629bdcf2;hp=ebf7190590310a7e287ae079335b23a241f80ce4;hpb=e013de8b92ff7ba9cf70c7c8669c023a315f1348;p=my-code%2Farm.git

diff --git a/betty/fwflash.c b/betty/fwflash.c
index ebf7190..85a64fa 100644
--- a/betty/fwflash.c
+++ b/betty/fwflash.c
@@ -272,8 +272,11 @@ void flash_chip_erase(u8 bank) {
 		else
 			status=B2F;
 
-		if(status&0x80)
+		if(status&0x80) {
+			/* send an ack */
+			uart0_send_byte(status);
 			break;
+		}
 	}
 }
 
@@ -313,6 +316,9 @@ int flash_write(u32 addr,u16 data) {
 
 	u16 check;
 
+	if(data==0xffff)
+		return 0;
+
 	*((unsigned volatile short *)addr)=0xa0;
 	*((unsigned volatile short *)addr)=data;
 	while(1) {
@@ -348,11 +354,9 @@ int receive_data_and_write_to_flash(u32 addr,u32 datalen) {
 	ret=0;
 	for(i=0;i<datalen/2;i++) {
 		byte=uart0_get_byte();
-		uart0_send_byte(byte);
 		data=byte;
 		cksm+=byte;
 		byte=uart0_get_byte();
-		uart0_send_byte(byte);
 		cksm+=byte;
 		data|=byte<<8;
 		if(flash_write(addr,data)<0)
@@ -364,7 +368,8 @@ int receive_data_and_write_to_flash(u32 addr,u32 datalen) {
 	unlock_bypass_reset(bank);
 
 	/* modify cksm on purpose, so the user knows ... */
-	cksm+=1;
+	if(ret==-1)
+		cksm+=1;
 
 	/* send the cksm */
 	uart0_send_byte(cksm);