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Updated part7 docs

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Adam Greenwood-Byrne 2021-02-15 09:53:20 +00:00
parent 88b45b66ab
commit 7d36b81242
1 changed files with 18 additions and 10 deletions
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28
part7-bluetooth/README.md
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@ -70,7 +70,8 @@ Now the device is waiting. We need to send it the firmware bytes we included in
```c
void bt_loadfirmware()
{
if (!hciCommand(OGF_VENDOR, COMMAND_LOAD_FIRMWARE, empty, 0)) uart_writeText("loadFirmware() failed\n");
volatile unsigned char empty[] = {};
if (hciCommand(OGF_VENDOR, COMMAND_LOAD_FIRMWARE, empty, 0)) uart_writeText("loadFirmware() failed\n");
extern unsigned char _binary_BCM4345C0_hcd_start[];
extern unsigned char _binary_BCM4345C0_hcd_size[];
@ -78,16 +79,23 @@ void bt_loadfirmware()
unsigned int c=0;
unsigned int size = (long)&_binary_BCM4345C0_hcd_size;
while (c < size) {
unsigned char opcodebytes[] = { _binary_BCM4345C0_hcd_start[c], _binary_BCM4345C0_hcd_start[c+1] };
unsigned char length = _binary_BCM4345C0_hcd_start[c+2];
unsigned char *data = &(_binary_BCM4345C0_hcd_start[c+3]);
unsigned char opcodebytes[2];
unsigned char length;
unsigned char *data = &(_binary_BCM4345C0_hcd_start[0]);
if (!hciCommandBytes(opcodebytes, data, length)) {
uart_writeText("Firmware data load failed\n");
break;
}
c += 3 + length;
while (c < size) {
opcodebytes[0] = *data;
opcodebytes[1] = *(data+1);
length = *(data+2);
data += 3;
if (hciCommandBytes(opcodebytes, data, length)) {
uart_writeText("Firmware data load failed\n");
break;
}
data += length;
c += 3 + length;
}
wait_msec(0x100000);