解决判定balance的错误

Signed-off-by: huhui <huhui@sharkgulf.com>

Application/app/sox/state.c

@@ -656,29 +656,28 @@ static void _balance_timer_handler(shark_timer_t *t){
 
 
 static u16 _search_direct(u16 *delta_v, u8 current_cell, u8 *depth, u8 dir) {
-	u16 delta_next = 0;
-	u16 delta_prev = 0;
-	u8  idx_prev = 255;
-	u8  idx_next = 255;
+	u16 delta_next, delta_prev;
+	u8  idx_prev, idx_next;
 	u8  balance_idx = 255;
-	for (int i = 0; i < CELLS_NUM/2 + 1 ; i++) {
+
+	for (int i = 0; i < CELLS_NUM/2 + 1; i++) {
 		*depth ++;
 		//get the delta v of the prev and current
 		if (current_cell == 0) {
-			delta_prev = delta_v[CELLS_NUM - 1];
 			idx_prev = CELLS_NUM - 1;
 		}else {
-			delta_prev = delta_v[current_cell - 1];
 			idx_prev = current_cell - 1;
 		}
+		delta_prev = delta_v[idx_prev];
+
 		//get the delta v of the next and current
 		if (current_cell == CELLS_NUM - 1) {
-			delta_next = delta_v[0];
 			idx_next = 0;
 		}else {
-			delta_next = delta_v[current_cell + 1];
 			idx_next = current_cell + 1;
 		}
+		delta_next = delta_v[idx_next];
+
 		//use the max delta v of the prev and next
 		if (delta_prev >= delta_next) {
 			if(delta_prev >= MAX_DIFF_BETWEEN_MIN_MAX_CELL){
@@ -710,11 +709,11 @@ static u32 get_balance_maskV2(void) {
 	//calc the delta v of the Neighboring cells
 	delta_v[CELLS_NUM - 1] = abs(pcellv[CELLS_NUM-1] - pcellv[0]);
 	for (int i = 0; i < CELLS_NUM - 1; i++) {
-		delta_v[i] = pcellv[i] - pcellv[i + 1];
+		delta_v[i] = abs(pcellv[i] - pcellv[i + 1]);
 	}
 	u8 depth_next, depth_prev;
 	u8 idx_next = _search_direct(delta_v, _bms_state.cell_index_of_max_vol, &depth_next, 1);// search from max to next....
-	u8 idx_prev = _search_direct(delta_v, _bms_state.cell_index_of_max_vol, &depth_next, 0);// search from max to prev
+	u8 idx_prev = _search_direct(delta_v, _bms_state.cell_index_of_max_vol, &depth_prev, 0);// search from max to prev
 	//chose the min depth whitch near from max voltage cell
 	if (depth_next < depth_prev) {
 		return BIT(idx_next);