From: Martin Mares <mj@ucw.cz>
Date: Tue, 9 Jul 2019 07:00:54 +0000 (+0200)
Subject: Modbus: More testing...
X-Git-Url: http://mj.ucw.cz/gitweb/?a=commitdiff_plain;h=1f916483dc9b3ce2660e9b8c0530e4d96963dba0;p=home-hw.git

Modbus: More testing...
---

diff --git a/test-modbus/client/try.c b/test-modbus/client/try.c
index ca02c5b..eb975b9 100644
--- a/test-modbus/client/try.c
+++ b/test-modbus/client/try.c
@@ -18,12 +18,32 @@ int main(void)
 	if (modbus_set_slave(mb, 42) < 0)
 		die("Cannot set slave address");
 
+	modbus_set_debug(mb, 1);
+
+#if 1
 	u16 dest;
 	rc = modbus_read_registers(mb, 0, 1, &dest);
 	if (rc < 0)
 		die("Cannot read: %s", modbus_strerror(errno));
-
 	printf("%04x\n", dest);
+#endif
+
+#if 0
+	byte rr[] = { 42, 0x2b, 0x0e, 0x04, 0x00 };
+	// byte rr[] = { 42, 0x03, 0x00, 0x00, 0x00, 0x10 };
+	rc = modbus_send_raw_request(mb, rr, sizeof(rr));
+	if (rc < 0)
+		die("Cannot send raw request: %s", modbus_strerror(errno));
+
+	byte rp[256];
+	rc = modbus_receive_confirmation(mb, rp);
+	if (rc < 0)
+		die("Cannot receive confirmation: %s", modbus_strerror(errno));
+
+	for (int i=0; i<rc; i++)
+		printf("%02x ", rp[i]);
+	putchar('\n');
+#endif
 
 	modbus_close(mb);
 	modbus_free(mb);
diff --git a/test-modbus/test.c b/test-modbus/test.c
index 16ae1ac..e890998 100644
--- a/test-modbus/test.c
+++ b/test-modbus/test.c
@@ -153,7 +153,7 @@ u16 modbus_get_input_register(u16 addr UNUSED)
 
 bool modbus_check_holding_register(u16 addr UNUSED)
 {
-	return (addr == 0);
+	return (addr < 16);
 }
 
 u16 modbus_get_holding_register(u16 addr UNUSED)