commit 0f4b504d992631429ef6e552ee414698d281bdb8
parent 5a0435f5eb977f62960eea662c9f0e3c3748b879
Author: Daniel Barlow <dan@telent.net>
Date: Sat, 22 Nov 2025 00:31:27 +0000
dump all tables for cbr125r
Diffstat:
2 files changed, 32 insertions(+), 14 deletions(-)
diff --git a/notes.md b/notes.md
@@ -133,6 +133,27 @@ later without having to change clients
... etc
+## CBR125R
+
+there is data in tables 0 0x11 0x20 0x61 0x70 0xd0 0xd1
+
+0x0 has values [1, 0, c6, 1, 2, 1, 0 ..... ]
+0x11 has values [0 0 6 0 ff a ff a f1 a8 ff ff 7f 0 0 0 80 93 5a 37
+8f]
+matches the 0x11 table for cb600f pc41 in
+https://gonzos.net/projects/wp-content/uploads/2015/09/Honda-data-tables.pdf
+
+[ we've only tested battery voltage but the others are not obviously wrong)
+
+0x20 has values [ff, 80, 0, 0, 0, 0 .....]
+0x61 is _not_ a copy of 0x11 as it was in the cb600f
+ [0 0 1a 0 9c 3e a3 3c 93 64 ff ff 3f 0 0 0 80 0 c2 4b 7d]
+0x70 has values [bc, 80, 0 .....]
+0xd0 [87, 12*0, ff, 6*0]
+0xd1 [2, 0, 0, 0, 4, 1, 0 ...]
+
+0x20 and 0x70 look similar but not the same
+
diff --git a/src/ecu.rs b/src/ecu.rs
@@ -72,7 +72,7 @@ impl Ecu<'_> {
while received < expected {
let bytes = uart.read_async(&mut receive[received..]).await.expect("read failed");
received += bytes;
- info!("read {bytes} {received} of {}", receive.len());
+ // info!("read {bytes} {received} of {}", receive.len());
}
&receive[0..expected]
} else {
@@ -115,21 +115,18 @@ impl Ecu<'_> {
&mut buf).await;
info!("matches {}", handshake == b"\x02\x04\x00\xfa");
- let table_11 = Self::chat(&mut uart,
- &mut [0x72, 0x07, 0x72, 0x11, 0, 0x14, 0xF0],
- &mut buf).await;
- for b in table_11 {
- info!("table {:x?}", b);
+ for i in (0..0xff) {
+ let table = Self::chat(&mut uart,
+ &mut [0x72, 0x07, 0x72, i, 0, 0x14, 0x0],
+ &mut buf).await;
+ if table.len() > 6 {
+ for b in &table[5..] {
+ info!("table {} {:x?}", i, b);
+ }
+ }
}
- // next steps:
- // - use reply length byte to get whole packet
- // - implement checksum algo
- // - try some other tables
-
- // checksum is (0x100 - (sum of bytes in message, mod 0x100))
-
-
+ // reply for table 11 query
// 2 - dest
// 1a - (26) chars in message
// 72 - query type
